Enable k2v feature flag in CI

.drone.yml

@@ -2,26 +2,68 @@
 kind: pipeline
 name: default
 
-node:
-  nix-daemon: 1
+workspace:
+  base: /drone/garage
+
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
+- name: nix_config
+  temp: {}
+
+environment:
+  HOME: /drone/garage
 
 steps:
-  - name: check formatting
-    image: nixpkgs/nix:nixos-22.05
+  - name: setup nix
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-shell --attr rust --run "cargo fmt -- --check"
+      - cp nix/nix.conf /etc/nix/nix.conf
+      - nix-build --no-build-output --no-out-link shell.nix --arg release false  -A inputDerivation
+
+  - name: code quality
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
+    commands:
+      - nix-shell --arg release false --run "cargo fmt -- --check"
+      - nix-shell --arg release false --run "cargo clippy -- --deny warnings"
 
   - name: build
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr clippy.amd64 --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
+      - nix-build --no-build-output --option log-lines 100 --argstr target x86_64-unknown-linux-musl --arg release false --argstr git_version $DRONE_COMMIT
 
   - name: unit + func tests
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
     environment:
       GARAGE_TEST_INTEGRATION_EXE: result/bin/garage
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr test.amd64
+      - |
+        nix-build \
+          --no-build-output \
+          --option log-lines 100 \
+          --argstr target x86_64-unknown-linux-musl \
+          --argstr compileMode test
       - ./result/bin/garage_api-*
       - ./result/bin/garage_model-*
       - ./result/bin/garage_rpc-*
@@ -31,11 +73,16 @@ steps:
       - ./result/bin/garage-*
       - ./result/bin/integration-*
 
-  - name: integration tests
-    image: nixpkgs/nix:nixos-22.05
+  - name: smoke-test
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr clippy.amd64 --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr integration --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
+      - nix-build --no-build-output --argstr target x86_64-unknown-linux-musl --arg release false --argstr git_version $DRONE_COMMIT
+      - nix-shell --arg release false --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
 
 trigger:
   event:
@@ -45,39 +92,78 @@ trigger:
   - tag
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: pipeline
 type: docker
-name: release-linux-amd64
+name: release-linux-x86_64
 
-node:
-  nix-daemon: 1
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
+- name: nix_config
+  temp: {}
+
+environment:
+  TARGET: x86_64-unknown-linux-musl
 
 steps:
-  - name: build
-    image: nixpkgs/nix:nixos-22.05
+  - name: setup nix
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr pkgs.amd64.release --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr rust --run "./script/not-dynamic.sh result/bin/garage"
+      - cp nix/nix.conf /etc/nix/nix.conf
+      - nix-build --no-build-output --no-out-link shell.nix -A inputDerivation
+
+  - name: build
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
+    commands:
+      - nix-build --no-build-output --argstr target $TARGET --arg release true --argstr git_version $DRONE_COMMIT
 
   - name: integration
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-shell --attr integration --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
+      - nix-shell --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
 
   - name: push static binary
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: garagehq_aws_access_key_id
       AWS_SECRET_ACCESS_KEY:
         from_secret: garagehq_aws_secret_access_key
-      TARGET: "x86_64-unknown-linux-musl"
     commands:
-      - nix-shell --attr release --run "to_s3"
+      - nix-shell --arg rust false --arg integration false --run "to_s3"
 
   - name: docker build and publish
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       DOCKER_AUTH:
         from_secret: docker_auth
@@ -88,7 +174,7 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo $DOCKER_AUTH > /kaniko/.docker/config.json
       - export CONTAINER_TAG=${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr release --run "to_docker"
+      - nix-shell --arg rust false --arg integration false --run "to_docker"
 
 
 trigger:
@@ -96,39 +182,78 @@ trigger:
   - promote
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: pipeline
 type: docker
-name: release-linux-i386
+name: release-linux-i686
 
-node:
-  nix-daemon: 1
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
+- name: nix_config
+  temp: {}
+
+environment:
+  TARGET: i686-unknown-linux-musl
 
 steps:
-  - name: build
-    image: nixpkgs/nix:nixos-22.05
+  - name: setup nix
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr pkgs.i386.release --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr rust --run "./script/not-dynamic.sh result/bin/garage"
+      - cp nix/nix.conf /etc/nix/nix.conf
+      - nix-build --no-build-output --no-out-link shell.nix -A inputDerivation
+
+  - name: build
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
+    commands:
+      - nix-build --no-build-output --argstr target $TARGET --arg release true --argstr git_version $DRONE_COMMIT
 
   - name: integration
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-shell --attr integration --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
+      - nix-shell --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
 
   - name: push static binary
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: garagehq_aws_access_key_id
       AWS_SECRET_ACCESS_KEY:
         from_secret: garagehq_aws_secret_access_key
-      TARGET: "i686-unknown-linux-musl"
     commands:
-      - nix-shell --attr release --run "to_s3"
+      - nix-shell --arg rust false --arg integration false --run "to_s3"
 
   - name: docker build and publish
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       DOCKER_AUTH:
         from_secret: docker_auth
@@ -139,41 +264,75 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo $DOCKER_AUTH > /kaniko/.docker/config.json
       - export CONTAINER_TAG=${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr release --run "to_docker"
+      - nix-shell --arg rust false --arg integration false --run "to_docker"
 
 trigger:
   event:
   - promote
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: pipeline
 type: docker
-name: release-linux-arm64
+name: release-linux-aarch64
 
-node:
-  nix-daemon: 1
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
+- name: nix_config
+  temp: {}
+
+environment:
+  TARGET: aarch64-unknown-linux-musl
 
 steps:
-  - name: build
-    image: nixpkgs/nix:nixos-22.05
+  - name: setup nix
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr pkgs.arm64.release --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr rust --run "./script/not-dynamic.sh result/bin/garage"
+      - cp nix/nix.conf /etc/nix/nix.conf
+      - nix-build --no-build-output --no-out-link ./shell.nix --arg rust false --arg integration false -A inputDerivation
+
+  - name: build
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
+    commands:
+      - nix-build --no-build-output --argstr target $TARGET --arg release true --argstr git_version $DRONE_COMMIT
 
   - name: push static binary
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: garagehq_aws_access_key_id
       AWS_SECRET_ACCESS_KEY:
         from_secret: garagehq_aws_secret_access_key
-      TARGET: "aarch64-unknown-linux-musl"
     commands:
-      - nix-shell --attr release --run "to_s3"
+      - nix-shell --arg rust false --arg integration false --run "to_s3"
 
   - name: docker build and publish
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       DOCKER_AUTH:
         from_secret: docker_auth
@@ -184,41 +343,75 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo $DOCKER_AUTH > /kaniko/.docker/config.json
       - export CONTAINER_TAG=${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr release --run "to_docker"
+      - nix-shell --arg rust false --arg integration false --run "to_docker"
 
 trigger:
   event:
   - promote
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: pipeline
 type: docker
-name: release-linux-arm
+name: release-linux-armv6l
 
-node:
-  nix-daemon: 1
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
+- name: nix_config
+  temp: {}
+
+environment:
+  TARGET: armv6l-unknown-linux-musleabihf
 
 steps:
-  - name: build
-    image: nixpkgs/nix:nixos-22.05
+  - name: setup nix
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     commands:
-      - nix-build --no-build-output --attr pkgs.arm.release --argstr git_version ${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr rust --run "./script/not-dynamic.sh result/bin/garage"
+      - cp nix/nix.conf /etc/nix/nix.conf
+      - nix-build --no-build-output --no-out-link --arg rust false --arg integration false -A inputDerivation
+
+  - name: build
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
+    commands:
+      - nix-build --no-build-output --argstr target $TARGET --arg release true --argstr git_version $DRONE_COMMIT
 
   - name: push static binary
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: garagehq_aws_access_key_id
       AWS_SECRET_ACCESS_KEY:
         from_secret: garagehq_aws_secret_access_key
-      TARGET: "armv6l-unknown-linux-musleabihf"
     commands:
-      - nix-shell --attr release --run "to_s3"
+      - nix-shell --arg integration false --arg rust false --run "to_s3"
 
   - name: docker build and publish
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
+    - name: nix_config
+      path: /etc/nix
     environment:
       DOCKER_AUTH:
         from_secret: docker_auth
@@ -229,35 +422,32 @@ steps:
       - mkdir -p /kaniko/.docker
       - echo $DOCKER_AUTH > /kaniko/.docker/config.json
       - export CONTAINER_TAG=${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr release --run "to_docker"
+      - nix-shell --arg rust false --arg integration false --run "to_docker"
 
 trigger:
   event:
   - promote
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: pipeline
 type: docker
 name: refresh-release-page
 
-node:
-  nix-daemon: 1
+volumes:
+- name: nix_store
+  host:
+    path: /var/lib/drone/nix
 
 steps:
-  - name: multiarch-docker
-    image: nixpkgs/nix:nixos-22.05
-    environment:
-      DOCKER_AUTH:
-        from_secret: docker_auth
-      HOME: "/root"
-    commands:
-      - mkdir -p /root/.docker
-      - echo $DOCKER_AUTH > /root/.docker/config.json
-      - export CONTAINER_TAG=${DRONE_TAG:-$DRONE_COMMIT}
-      - nix-shell --attr release --run "multiarch_docker"
   - name: refresh-index
-    image: nixpkgs/nix:nixos-22.05
+    image: nixpkgs/nix:nixos-21.05
+    volumes:
+    - name: nix_store
+      path: /nix
     environment:
       AWS_ACCESS_KEY_ID:
         from_secret: garagehq_aws_access_key_id
@@ -265,21 +455,24 @@ steps:
         from_secret: garagehq_aws_secret_access_key
     commands:
       - mkdir -p /etc/nix && cp nix/nix.conf /etc/nix/nix.conf
-      - nix-shell --attr release --run "refresh_index"
+      - nix-shell --arg integration false --arg rust false --run "refresh_index"
 
 depends_on:
-  - release-linux-amd64
-  - release-linux-i386
-  - release-linux-arm64
-  - release-linux-arm
+  - release-linux-x86_64
+  - release-linux-i686
+  - release-linux-aarch64
+  - release-linux-armv6l
 
 trigger:
   event:
   - promote
   - cron
 
+node:
+  nix: 1
+
 ---
 kind: signature
-hmac: 103a04785c98f5376a63ce22865c2576963019bbc4d828f200d2a470a3c821ea
+hmac: 3fc19d6f9a3555519c8405e3281b2e74289bb802f644740d5481d53df3a01fa4
 
 ...

Cargo.toml

@@ -1,5 +1,4 @@
 [workspace]
-resolver = "2"
 members = [
 	"src/db",
 	"src/util",

Makefile

@@ -1,27 +1,13 @@
-.PHONY: doc all release shell run1 run2 run3
+.PHONY: doc all release shell
 
 all:
-	clear; cargo build
+	clear; cargo build --all-features
+
+doc:
+	cd doc/book; mdbook build
 
 release:
 	nix-build --arg release true
 
 shell:
 	nix-shell
-
-# ----
-
-run1:
-	RUST_LOG=garage=debug ./target/debug/garage -c tmp/config1.toml server
-run1rel:
-	RUST_LOG=garage=debug ./target/release/garage -c tmp/config1.toml server
-
-run2:
-	RUST_LOG=garage=debug ./target/debug/garage -c tmp/config2.toml server
-run2rel:
-	RUST_LOG=garage=debug ./target/release/garage -c tmp/config2.toml server
-
-run3:
-	RUST_LOG=garage=debug ./target/debug/garage -c tmp/config3.toml server
-run3rel:
-	RUST_LOG=garage=debug ./target/release/garage -c tmp/config3.toml server

README.md

@@ -15,24 +15,18 @@ Garage [![Build Status](https://drone.deuxfleurs.fr/api/badges/Deuxfleurs/garage
 	]
 </p>
 
-Garage is an S3-compatible distributed object storage service
-designed for self-hosting at a small-to-medium scale.
+Garage is a lightweight S3-compatible distributed object store, with the following goals:
 
-Garage is designed for storage clusters composed of nodes running
-at different physical locations,
-in order to easily provide a storage service that replicates data at these different
-locations and stays available even when some servers are unreachable.
-Garage also focuses on being lightweight, easy to operate, and highly resilient to
-machine failures.
+- As self-contained as possible
+- Easy to set up
+- Highly resilient to network failures, network latency, disk failures, sysadmin failures
+- Relatively simple
+- Made for multi-datacenter deployments
 
-Garage is built by [Deuxfleurs](https://deuxfleurs.fr),
-an experimental small-scale self hosted service provider,
-which has been using it in production since its first release in 2020.
+Non-goals include:
 
-Learn more on our dedicated documentation pages:
+- Extremely high performance
+- Complete implementation of the S3 API
+- Erasure coding (our replication model is simply to copy the data as is on several nodes, in different datacenters if possible)
 
-- [Goals and use cases](https://garagehq.deuxfleurs.fr/documentation/design/goals/)
-- [Features](https://garagehq.deuxfleurs.fr/documentation/reference-manual/features/)
-- [Quick start](https://garagehq.deuxfleurs.fr/documentation/quick-start/)
-
-Garage is entirely free software released under the terms of the AGPLv3.
+Our main use case is to provide a distributed storage layer for small-scale self hosted services such as [Deuxfleurs](https://deuxfleurs.fr).

default.nix

@@ -1,33 +1,148 @@
 {
   system ? builtins.currentSystem,
+  release ? false,
+  target ? "x86_64-unknown-linux-musl",
+  compileMode ? null,
   git_version ? null,
 }:
 
 with import ./nix/common.nix;
 
-let 
-  pkgs = import pkgsSrc { };
-  compile = import ./nix/compile.nix;
-  build_debug_and_release = (target: {
-    debug = (compile { inherit target git_version; release = false; }).workspace.garage { compileMode = "build"; }; 
-    release = (compile { inherit target git_version; release = true; }).workspace.garage { compileMode = "build"; }; 
-  });
-  test = (rustPkgs: pkgs.symlinkJoin {
-    name ="garage-tests";
-    paths = builtins.map (key: rustPkgs.workspace.${key} { compileMode = "test"; }) (builtins.attrNames rustPkgs.workspace);
-  });
+let
+  crossSystem = { config = target; };
+in let
+  log = v: builtins.trace v v;
 
-in {
-  pkgs = {
-    amd64 = build_debug_and_release "x86_64-unknown-linux-musl";
-    i386 = build_debug_and_release "i686-unknown-linux-musl";
-    arm64 = build_debug_and_release "aarch64-unknown-linux-musl";
-    arm = build_debug_and_release "armv6l-unknown-linux-musleabihf";
+  pkgs = import pkgsSrc {
+    inherit system crossSystem;
+    overlays = [ cargo2nixOverlay ];
   };
-  test = {
-    amd64 = test (compile { inherit git_version; target = "x86_64-unknown-linux-musl"; });
+
+
+  /*
+   Rust and Nix triples are not the same. Cargo2nix has a dedicated library
+   to convert Nix triples to Rust ones. We need this conversion as we want to
+   set later options linked to our (rust) target in a generic way. Not only
+   the triple terminology is different, but also the "roles" are named differently.
+   Nix uses a build/host/target terminology where Nix's "host" maps to Cargo's "target".
+  */
+  rustTarget = log (pkgs.rustBuilder.rustLib.rustTriple pkgs.stdenv.hostPlatform);
+
+  /*
+   Cargo2nix is built for rustOverlay which installs Rust from Mozilla releases.
+   We want our own Rust to avoid incompatibilities, like we had with musl 1.2.0.
+   rustc was built with musl < 1.2.0 and nix shipped musl >= 1.2.0 which lead to compilation breakage.
+   So we want a Rust release that is bound to our Nix repository to avoid these problems.
+   See here for more info: https://musl.libc.org/time64.html
+   Because Cargo2nix does not support the Rust environment shipped by NixOS,
+   we emulate the structure of the Rust object created by rustOverlay.
+   In practise, rustOverlay ships rustc+cargo in a single derivation while
+   NixOS ships them in separate ones. We reunite them with symlinkJoin.
+   */
+  rustChannel = pkgs.symlinkJoin {
+    name ="rust-channel";
+    paths = [ 
+      pkgs.rustPlatform.rust.rustc
+      pkgs.rustPlatform.rust.cargo
+    ];
   };
-  clippy = {
-    amd64 = (compile { inherit git_version; compiler = "clippy"; }).workspace.garage { compileMode = "build"; } ;
+
+  /*
+   Cargo2nix provides many overrides by default, you can take inspiration from them:
+   https://github.com/cargo2nix/cargo2nix/blob/master/overlay/overrides.nix
+
+   You can have a complete list of the available options by looking at the overriden object, mkcrate:
+   https://github.com/cargo2nix/cargo2nix/blob/master/overlay/mkcrate.nix
+  */
+  overrides = pkgs.rustBuilder.overrides.all ++ [
+    /*
+     [1] We need to alter Nix hardening to be able to statically compile: PIE,
+     Position Independent Executables seems to be supported only on amd64. Having
+     this flags set either make our executables crash or compile as dynamic on many platforms.
+     In the following section codegenOpts, we reactive it for the supported targets
+     (only amd64 curently) through the `-static-pie` flag. PIE is a feature used
+     by ASLR, which helps mitigate security issues.
+     Learn more about Nix Hardening: https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/cc-wrapper/add-hardening.sh
+
+     [2] We want to inject the git version while keeping the build deterministic.
+     As we do not want to consider the .git folder as part of the input source,
+     we ask the user (the CI often) to pass the value to Nix.
+    */
+    (pkgs.rustBuilder.rustLib.makeOverride {
+      name = "garage_rpc";
+      overrideAttrs = drv:
+        /* [1] */ { hardeningDisable = [ "pie" ]; }
+        //
+        /* [2] */ (if git_version != null then {
+          preConfigure = ''
+            ${drv.preConfigure or ""}
+            export GIT_VERSION="${git_version}"
+          '';
+        } else {});
+    })
+
+    /*
+     We ship some parts of the code disabled by default by putting them behind a flag.
+     It speeds up the compilation (when the feature is not required) and released crates have less dependency by default (less attack surface, disk space, etc.).
+     But we want to ship these additional features when we release Garage.
+     In the end, we chose to exclude all features from debug builds while putting (all of) them in the release builds.
+     Currently, the only such feature of Garage is kubernetes-discovery from the garage_rpc crate.
+     The experimental feature k2v is also enabled here in all builds.
+    */
+    (pkgs.rustBuilder.rustLib.makeOverride {
+      name = "garage_rpc";
+      overrideArgs = old:
+        {
+          features = if release then [ "kubernetes-discovery" "k2v" ] else [ "k2v" ];
+        };
+    })
+  ];
+
+  packageFun = import ./Cargo.nix;
+
+  /*
+    We compile fully static binaries with musl to simplify deployment on most systems.
+    When possible, we reactivate PIE hardening (see above).
+
+    Also, if you set the RUSTFLAGS environment variable, the following parameters will
+    be ignored.
+
+    For more information on static builds, please refer to Rust's RFC 1721.
+    https://rust-lang.github.io/rfcs/1721-crt-static.html#specifying-dynamicstatic-c-runtime-linkage
+  */
+
+  codegenOpts = {
+   "armv6l-unknown-linux-musleabihf" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* compile as dynamic with static-pie */
+   "aarch64-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* segfault with static-pie */
+   "i686-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* segfault with static-pie */
+   "x86_64-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static-pie" ];
   };
-}
+
+  /*
+   The following definition is not elegant as we use a low level function of Cargo2nix
+   that enables us to pass our custom rustChannel object. We need this low level definition
+   to pass Nix's Rust toolchains instead of Mozilla's one.
+
+   target is mandatory but must be kept to null to allow cargo2nix to set it to the appropriate value
+   for each crate.
+  */ 
+  rustPkgs = pkgs.rustBuilder.makePackageSet {
+    inherit packageFun rustChannel release codegenOpts;
+    packageOverrides = overrides;
+    target = null;
+
+    buildRustPackages = pkgs.buildPackages.rustBuilder.makePackageSet {
+      inherit rustChannel packageFun codegenOpts;
+      packageOverrides = overrides;
+      target = null;
+    };
+  };
+
+
+in
+  if compileMode == "test"
+    then pkgs.symlinkJoin {
+      name ="garage-tests";
+      paths = builtins.map (key: rustPkgs.workspace.${key} { inherit compileMode; }) (builtins.attrNames rustPkgs.workspace);
+    }
+    else rustPkgs.workspace.garage { inherit compileMode; }

doc/book/cookbook/exposing-websites.md

@@ -5,14 +5,12 @@ weight = 25
 
 ## Configuring a bucket for website access
 
-There are three methods to expose buckets as website:
+There are two methods to expose buckets as website:
 
 1. using the PutBucketWebsite S3 API call, which is allowed for access keys that have the owner permission bit set
 
 2. from the Garage CLI, by an adminstrator of the cluster
 
-3. using the Garage administration API
-
 The `PutBucketWebsite` API endpoint [is documented](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketWebsite.html) in the official AWS docs.
 This endpoint can also be called [using `aws s3api`](https://docs.aws.amazon.com/cli/latest/reference/s3api/put-bucket-website.html) on the command line.
 The website configuration supported by Garage is only a subset of the possibilities on Amazon S3: redirections are not supported, only the index document and error document can be specified.

doc/book/cookbook/from-source.md

@@ -20,76 +20,40 @@ sudo apt-get update
 sudo apt-get install build-essential
 ```
 
-## Building from source from the Gitea repository
+## Using source from `crates.io`
+
+Garage's source code is published on `crates.io`, Rust's official package repository.
+This means you can simply ask `cargo` to download and build this source code for you:
+
+```bash
+cargo install garage
+```
+
+That's all, `garage` should be in `$HOME/.cargo/bin`.
+
+You can add this folder to your `$PATH` or copy the binary somewhere else on your system.
+For instance:
+
+```bash
+sudo cp $HOME/.cargo/bin/garage /usr/local/bin/garage
+```
+
+
+## Using source from the Gitea repository
 
 The primary location for Garage's source code is the
-[Gitea repository](https://git.deuxfleurs.fr/Deuxfleurs/garage),
-which contains all of the released versions as well as the code
-for the developpement of the next version.
+[Gitea repository](https://git.deuxfleurs.fr/Deuxfleurs/garage).
 
-Clone the repository and enter it as follows:
+Clone the repository and build Garage with the following commands:
 
 ```bash
 git clone https://git.deuxfleurs.fr/Deuxfleurs/garage.git
 cd garage
+cargo build
 ```
 
-If you wish to build a specific version of Garage, check out the corresponding tag. For instance:
+Be careful, as this will make a debug build of Garage, which will be extremely slow!
+To make a release build, invoke `cargo build --release` (this takes much longer).
 
-```bash
-git tag  				# List available tags
-git checkout v0.8.0		# Change v0.8.0 with the version you wish to build
-```
+The binaries built this way are found in `target/{debug,release}/garage`.
 
-Otherwise you will be building a developpement build from the `main` branch
-that includes all of the changes to be released in the next version.
-Be careful that such a build might be unstable or contain bugs,
-and could be incompatible with nodes that run stable versions of Garage.
-
-Finally, build Garage with the following command:
-
-```bash
-cargo build --release
-```
-
-The binary built this way can now be found in `target/release/garage`.
-You may simply copy this binary to somewhere in your `$PATH` in order to
-have the `garage` command available in your shell, for instance:
-
-```bash
-sudo cp target/release/garage /usr/local/bin/garage
-```
-
-If you are planning to develop Garage,
-you might be interested in producing debug builds, which compile faster but run slower:
-this can be done by removing the `--release` flag, and the resulting build can then
-be found in `target/debug/garage`.
-
-## List of available Cargo feature flags
-
-Garage supports a number of compilation options in the form of Cargo feature flags,
-which can be used to provide builds adapted to your system and your use case.
-To produce a build with a given set of features, invoke the `cargo build` command
-as follows:
-
-```bash
-# This will build the default feature set plus feature1, feature2 and feature3
-cargo build --release --features feature1,feature2,feature3
-# This will build ONLY feature1, feature2 and feature3
-cargo build --release --no-default-features \
-            --features feature1,feature2,feature3
-```
-
-The following feature flags are available in v0.8.0:
-
-| Feature flag | Enabled | Description |
-| ------------ | ------- | ----------- |
-| `bundled-libs` | *by default* | Use bundled version of sqlite3, zstd, lmdb and libsodium |
-| `system-libs` | optional | Use system version of sqlite3, zstd, lmdb and libsodium<br>if available (exclusive with `bundled-libs`, build using<br>`cargo build --no-default-features --features system-libs`) |
-| `k2v` | optional | Enable the experimental K2V API (if used, all nodes on your<br>Garage cluster must have it enabled as well) |
-| `kubernetes-discovery` | optional | Enable automatic registration and discovery<br>of cluster nodes through the Kubernetes API |
-| `metrics` | *by default* | Enable collection of metrics in Prometheus format on the admin API |
-| `telemetry-otlp` | optional | Enable collection of execution traces using OpenTelemetry |
-| `sled` | *by default* | Enable using Sled to store Garage's metadata |
-| `lmdb` | optional | Enable using LMDB to store Garage's metadata |
-| `sqlite` | optional | Enable using Sqlite3 to store Garage's metadata |

doc/book/cookbook/real-world.md

@@ -51,15 +51,15 @@ to store 2 TB of data in total.
 
 ## Get a Docker image
 
-Our docker image is currently named `dxflrs/garage` and is stored on the [Docker Hub](https://hub.docker.com/r/dxflrs/garage/tags?page=1&ordering=last_updated).
-We encourage you to use a fixed tag (eg. `v0.8.0`) and not the `latest` tag.
-For this example, we will use the latest published version at the time of the writing which is `v0.8.0` but it's up to you
-to check [the most recent versions on the Docker Hub](https://hub.docker.com/r/dxflrs/garage/tags?page=1&ordering=last_updated).
+Our docker image is currently named `dxflrs/amd64_garage` and is stored on the [Docker Hub](https://hub.docker.com/r/dxflrs/amd64_garage/tags?page=1&ordering=last_updated).
+We encourage you to use a fixed tag (eg. `v0.4.0`) and not the `latest` tag.
+For this example, we will use the latest published version at the time of the writing which is `v0.4.0` but it's up to you
+to check [the most recent versions on the Docker Hub](https://hub.docker.com/r/dxflrs/amd64_garage/tags?page=1&ordering=last_updated).
 
 For example:
 
 ```
-sudo docker pull dxflrs/garage:v0.8.0
+sudo docker pull dxflrs/amd64_garage:v0.4.0
 ```
 
 ## Deploying and configuring Garage
@@ -125,7 +125,7 @@ docker run \
   -v /etc/garage.toml:/etc/garage.toml \
   -v /var/lib/garage/meta:/var/lib/garage/meta \
   -v /var/lib/garage/data:/var/lib/garage/data \
-  dxflrs/garage:v0.8.0
+  lxpz/garage_amd64:v0.4.0
 ```
 
 It should be restarted automatically at each reboot.

doc/book/cookbook/reverse-proxy.md

@@ -280,25 +280,3 @@ Traefik's caching middleware is only available on [entreprise version](https://d
 [http.middlewares]
   [http.middlewares.gzip_compress.compress]
 ```
-
-## Caddy
-
-Your Caddy configuration can be as simple as:
-
-```caddy
-s3.garage.tld, *.s3.garage.tld {
-	reverse_proxy localhost:3900 192.168.1.2:3900 example.tld:3900
-}
-
-*.web.garage.tld {
-	reverse_proxy localhost:3902 192.168.1.2:3900 example.tld:3900
-}
-
-admin.garage.tld {
-	reverse_proxy localhost:3903
-}
-```
-
-But at the same time, the `reverse_proxy` is very flexible.
-For a production deployment, you should [read its documentation](https://caddyserver.com/docs/caddyfile/directives/reverse_proxy) as it supports features like DNS discovery of upstreams, load balancing with checks, streaming parameters, etc.
-

doc/book/design/benchmarks/index.md

@@ -1,6 +1,6 @@
 +++
 title = "Benchmarks"
-weight = 40
+weight = 10
 +++
 
 With Garage, we wanted to build a software defined storage service that follow the [KISS principle](https://en.wikipedia.org/wiki/KISS_principle),

doc/book/design/goals.md

@@ -1,23 +1,23 @@
 +++
 title = "Goals and use cases"
-weight = 10
+weight = 5
 +++
 
 ## Goals and non-goals
 
 Garage is a lightweight geo-distributed data store that implements the
 [Amazon S3](https://docs.aws.amazon.com/AmazonS3/latest/API/Welcome.html)
-object storage protocol. It enables applications to store large blobs such
+object storage protocole. It enables applications to store large blobs such
 as pictures, video, images, documents, etc., in a redundant multi-node
 setting. S3 is versatile enough to also be used to publish a static
 website.
 
 Garage is an opinionated object storage solutoin, we focus on the following **desirable properties**:
 
-  - **Internet enabled**: made for multi-sites (eg. datacenters, offices, households, etc.) interconnected through regular Internet connections.
   - **Self-contained & lightweight**: works everywhere and integrates well in existing environments to target [hyperconverged infrastructures](https://en.wikipedia.org/wiki/Hyper-converged_infrastructure).
   - **Highly resilient**: highly resilient to network failures, network latency, disk failures, sysadmin failures.
   - **Simple**: simple to understand, simple to operate, simple to debug.
+  - **Internet enabled**: made for multi-sites (eg. datacenters, offices, households, etc.) interconnected through regular Internet connections.
 
 We also noted that the pursuit of some other goals are detrimental to our initial goals.
 The following has been identified as **non-goals** (if these points matter to you, you should not use Garage):

doc/book/design/internals.md

@@ -20,49 +20,6 @@ In the meantime, you can find some information at the following links:
 - [an old design draft](@/documentation/working-documents/design-draft.md)
 
 
-## Request routing logic
-
-Data retrieval requests to Garage endpoints (S3 API and websites) are resolved 
-to an individual object in a bucket. Since objects are replicated to multiple nodes 
-Garage must ensure consistency before answering the request.
-
-### Using quorum to ensure consistency
-
-Garage ensures consistency by attempting to establish a quorum with the
-data nodes responsible for the object. When a majority of the data nodes
-have provided metadata on a object Garage can then answer the request.
-
-When a request arrives Garage will, assuming the recommended 3 replicas, perform the following actions:
-
-- Make a request to the two preferred nodes for object metadata
-- Try the third node if one of the two initial requests fail
-- Check that the metadata from at least 2 nodes match
-- Check that the object hasn't been marked deleted
-- Answer the request with inline data from metadata if object is small enough
-- Or get data blocks from the preferred nodes and answer using the assembled object
-
-Garage dynamically determines which nodes to query based on health, preference, and 
-which nodes actually host a given data. Garage has no concept of "primary" so any 
-healthy node with the data can be used as long as a quorum is reached for the metadata.
-
-### Node health
-
-Garage keeps a TCP session open to each node in the cluster and periodically pings them. If a connection
-cannot be established, or a node fails to answer a number of pings, the target node is marked as failed.
-Failed nodes are not used for quorum or other internal requests.
-
-### Node preference
-
-Garage prioritizes which nodes to query according to a few criteria:
-
-- A node always prefers itself if it can answer the request
-- Then the node prioritizes nodes in the same zone
-- Finally the nodes with the lowest latency are prioritized 
-
-
-For further reading on the cluster structure look at the [gateway](@/documentation/cookbook/gateways.md) 
-and [cluster layout management](@/documentation/reference-manual/layout.md) pages.
-
 ## Garbage collection
 
 A faulty garbage collection procedure has been the cause of

doc/book/design/related-work.md

@@ -1,6 +1,6 @@
 +++
 title = "Related work"
-weight = 50
+weight = 15
 +++
 
 ## Context

doc/book/quick-start/_index.md

@@ -9,15 +9,6 @@ Let's start your Garage journey!
 In this chapter, we explain how to deploy Garage as a single-node server
 and how to interact with it.
 
-## What is Garage?
-
-Before jumping in, you might be interested in reading the following pages:
-
-- [Goals and use cases](@/documentation/design/goals.md)
-- [List of features](@/documentation/reference-manual/features.md)
-
-## Scope of this tutorial
-
 Our goal is to introduce you to Garage's workflows.
 Following this guide is recommended before moving on to
 [configuring a multi-node cluster](@/documentation/cookbook/real-world.md).

doc/book/reference-manual/admin-api.md

@@ -1,6 +1,6 @@
 +++
 title = "Administration API"
-weight = 60
+weight = 16
 +++
 
 The Garage administration API is accessible through a dedicated server whose

doc/book/reference-manual/cli.md

@@ -1,6 +1,6 @@
 +++
 title = "Garage CLI"
-weight = 30
+weight = 15
 +++
 
 The Garage CLI is mostly self-documented. Make use of the `help` subcommand

doc/book/reference-manual/configuration.md

@@ -1,6 +1,6 @@
 +++
 title = "Configuration file format"
-weight = 20
+weight = 5
 +++
 
 Here is an example `garage.toml` configuration file that illustrates all of the possible options:
@@ -10,6 +10,7 @@ metadata_dir = "/var/lib/garage/meta"
 data_dir = "/var/lib/garage/data"
 
 block_size = 1048576
+block_manager_background_tranquility = 2
 
 replication_mode = "3"
 
@@ -86,6 +87,17 @@ files will remain available. This however means that chunks from existing files
 will not be deduplicated with chunks from newly uploaded files, meaning you
 might use more storage space that is optimally possible.
 
+### `block_manager_background_tranquility`
+
+This parameter tunes the activity of the background worker responsible for
+resyncing data blocks between nodes. The higher the tranquility value is set,
+the more the background worker will wait between iterations, meaning the load
+on the system (including network usage between nodes) will be reduced. The
+minimal value for this parameter is `0`, where the background worker will
+allways work at maximal throughput to resynchronize blocks. The default value
+is `2`, where the background worker will try to spend at most 1/3 of its time
+working, and 2/3 sleeping in order to reduce system load.
+
 ### `replication_mode`
 
 Garage supports the following replication modes:

doc/book/reference-manual/features.md

@@ -1,125 +0,0 @@
-+++
-title = "List of Garage features"
-weight = 10
-+++
-
-
-### S3 API
-
-The main goal of Garage is to provide an object storage service that is compatible with the
-[S3 API](https://docs.aws.amazon.com/AmazonS3/latest/API/Welcome.html) from Amazon Web Services.
-We try to adhere as strictly as possible to the semantics of the API as implemented by Amazon
-and other vendors such as Minio or CEPH.
-
-Of course Garage does not implement the full span of API endpoints that AWS S3 does;
-the exact list of S3 features implemented by Garage can be found [on our S3 compatibility page](@/documentation/reference-manual/s3-compatibility.md).
-
-### Geo-distribution
-
-Garage allows you to store copies of your data in multiple geographical locations in order to maximize resilience
-to adverse events, such as network/power outages or hardware failures.
-This allows Garage to run very well even at home, using consumer-grade Internet connectivity
-(such as FTTH) and power, as long as cluster nodes can be spawned at several physical locations.
-Garage exploits knowledge of the capacity and physical location of each storage node to design
-a storage plan that best exploits the available storage capacity while satisfying the geo-distributed replication constraint.
-
-To learn more about geo-distributed Garage clusters,
-read our documentation on [setting up a real-world deployment](@/documentation/cookbook/real-world.md).
-
-### Standalone/self-contained
-
-Garage is extremely simple to deploy, and does not depend on any external service to run.
-This makes setting up and administering storage clusters, we hope, as easy as it could be.
-
-### Flexible topology
-
-A Garage cluster can very easily evolve over time, as storage nodes are added or removed.
-Garage will automatically rebalance data between nodes as needed to ensure the desired number of copies.
-Read about cluster layout management [here](@/documentation/reference-manual/layout.md).
-
-### No RAFT slowing you down
-
-It might seem strange to tout the absence of something as a desirable feature,
-but this is in fact a very important point! Garage does not use RAFT or another
-consensus algorithm internally to order incoming requests: this means that all requests
-directed to a Garage cluster can be handled independently of one another instead
-of going through a central bottleneck (the leader node).
-As a consequence, requests can be handled much faster, even in cases where latency
-between cluster nodes is important (see our [benchmarks](@/documentation/design/benchmarks/index.md) for data on this).
-This is particularly usefull when nodes are far from one another and talk to one other through standard Internet connections.
-
-### Several replication modes
-
-Garage supports a variety of replication modes, with 1 copy, 2 copies or 3 copies of your data,
-and with various levels of consistency, in order to adapt to a variety of usage scenarios.
-Read our reference page on [supported replication modes](@/documentation/reference-manual/configuration.md#replication-mode)
-to select the replication mode best suited to your use case (hint: in most cases, `replication_mode = "3"` is what you want).
-
-### Web server for static websites
-
-A storage bucket can easily be configured to be served directly by Garage as a static web site.
-Domain names for multiple websites directly map to bucket names, making it easy to build
-a platform for your users to autonomously build and host their websites over Garage.
-Surprisingly, none of the other alternative S3 implementations we surveyed (such as Minio
-or CEPH) support publishing static websites from S3 buckets, a feature that is however
-directly inherited from S3 on AWS.
-Read more on our [dedicated documentation page](@/documentation/cookbook/exposing-websites.md).
-
-### Bucket names as aliases
-
-In Garage, a bucket may have several names, known as aliases.
-Aliases can easily be added and removed on demand:
-this allows to easily rename buckets if needed
-without having to copy all of their content, something that cannot be done on AWS.
-For buckets served as static websites, having multiple aliases for a bucket can allow
-exposing the same content under different domain names.
-
-Garage also supports bucket aliases which are local to a single user:
-this allows different users to have different buckets with the same name, thus avoiding naming collisions.
-This can be helpfull for instance if you want to write an application that creates per-user buckets with always the same name.
-
-This feature is totally invisible to S3 clients and does not break compatibility with AWS.
-
-### Cluster administration API
-
-Garage provides a fully-fledged REST API to administer your cluster programatically.
-Functionnality included in the admin API include: setting up and monitoring
-cluster nodes, managing access credentials, and managing storage buckets and bucket aliases.
-A full reference of the administration API is available [here](@/documentation/reference-manual/admin-api.md).
-
-### Metrics and traces
-
-Garage makes some internal metrics available in the Prometheus data format,
-which allows you to build interactive dashboards to visualize the load and internal state of your storage cluster.
-
-For developpers and performance-savvy administrators,
-Garage also supports exporting traces of what it does internally in OpenTelemetry format.
-This allows to monitor the time spent at various steps of the processing of requests,
-in order to detect potential performance bottlenecks.
-
-### Kubernetes and Nomad integrations
-
-Garage can automatically discover other nodes in the cluster thanks to integration
-with orchestrators such as Kubernetes and Nomad (when used with Consul).
-This eases the configuration of your cluster as it removes one step where nodes need
-to be manually connected to one another.
-
-### Support for changing IP addresses
-
-As long as all of your nodes don't thange their IP address at the same time,
-Garage should be able to tolerate nodes with changing/dynamic IP addresses,
-as nodes will regularly exchange the IP addresses of their peers and try to
-reconnect using newer addresses when existing connections are broken.
-
-### K2V API (experimental)
-
-As part of an ongoing research project, Garage can expose an experimental key/value storage API called K2V.
-K2V is made for the storage and retrieval of many small key/value pairs that need to be processed in bulk.
-This completes the S3 API with an alternative that can be used to easily store and access metadata
-related to objects stored in an S3 bucket.
-
-In the context of our research project, [Aérogramme](https://aerogramme.deuxfleurs.fr),
-K2V is used to provide metadata and log storage for operations on encrypted e-mail storage.
-
-Learn more on the specification of K2V [here](https://git.deuxfleurs.fr/Deuxfleurs/garage/src/branch/k2v/doc/drafts/k2v-spec.md)
-and on how to enable it in Garage [here](@/documentation/reference-manual/k2v.md).

doc/book/reference-manual/k2v.md

@@ -1,6 +1,6 @@
 +++
 title = "K2V"
-weight = 70
+weight = 30
 +++
 
 Starting with version 0.7.2, Garage introduces an optionnal feature, K2V,

doc/book/reference-manual/layout.md

@@ -1,6 +1,6 @@
 +++
 title = "Cluster layout management"
-weight = 50
+weight = 10
 +++
 
 The cluster layout in Garage is a table that assigns to each node a role in

doc/book/reference-manual/routing.md

@@ -0,0 +1,45 @@
++++
+title = "Request routing logic"
+weight = 10
++++
+
+Data retrieval requests to Garage endpoints (S3 API and websites) are resolved 
+to an individual object in a bucket. Since objects are replicated to multiple nodes 
+Garage must ensure consistency before answering the request.
+
+## Using quorum to ensure consistency
+
+Garage ensures consistency by attempting to establish a quorum with the
+data nodes responsible for the object. When a majority of the data nodes
+have provided metadata on a object Garage can then answer the request.
+
+When a request arrives Garage will, assuming the recommended 3 replicas, perform the following actions:
+
+- Make a request to the two preferred nodes for object metadata
+- Try the third node if one of the two initial requests fail
+- Check that the metadata from at least 2 nodes match
+- Check that the object hasn't been marked deleted
+- Answer the request with inline data from metadata if object is small enough
+- Or get data blocks from the preferred nodes and answer using the assembled object
+
+Garage dynamically determines which nodes to query based on health, preference, and 
+which nodes actually host a given data. Garage has no concept of "primary" so any 
+healthy node with the data can be used as long as a quorum is reached for the metadata.
+
+## Node health
+
+Garage keeps a TCP session open to each node in the cluster and periodically pings them. If a connection
+cannot be established, or a node fails to answer a number of pings, the target node is marked as failed.
+Failed nodes are not used for quorum or other internal requests.
+
+## Node preference
+
+Garage prioritizes which nodes to query according to a few criteria:
+
+- A node always prefers itself if it can answer the request
+- Then the node prioritizes nodes in the same zone
+- Finally the nodes with the lowest latency are prioritized 
+
+
+For further reading on the cluster structure look at the [gateway](@/documentation/cookbook/gateways.md) 
+and [cluster layout management](@/documentation/reference-manual/layout.md) pages.

doc/book/reference-manual/s3-compatibility.md

@@ -1,6 +1,6 @@
 +++
 title = "S3 Compatibility status"
-weight = 40
+weight = 20
 +++
 
 ## DISCLAIMER
@@ -148,7 +148,7 @@ Please open an issue if you have a use case for replication.
 | [PutBucketReplication](https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketReplication.html) | ❌ Missing | ❌| ⚠ | ❌| ❌|
 
 *Note: Ceph documentation briefly says that Ceph supports
-[replication through the S3 API](https://docs.ceph.com/en/latest/radosgw/multisite-sync-policy/#s3-replication-api)
+[replication though the S3 API](https://docs.ceph.com/en/latest/radosgw/multisite-sync-policy/#s3-replication-api)
 but with some limitations.
 Additionaly, replication endpoints are not documented in the S3 compatibility page so I don't know what kind of support we can expect.*
 

doc/book/working-documents/design-draft.md

@@ -1,6 +1,6 @@
 +++
-title = "Design draft (obsolete)"
-weight = 50
+title = "Design draft"
+weight = 25
 +++
 
 **WARNING: this documentation is a design draft which was written before Garage's actual implementation.

doc/book/working-documents/load-balancing.md

@@ -1,6 +1,6 @@
 +++
-title = "Load balancing data (obsolete)"
-weight = 60
+title = "Load balancing data"
+weight = 10
 +++
 
 **This is being yet improved in release 0.5. The working document has not been updated yet, it still only applies to Garage 0.2 through 0.4.**

doc/book/working-documents/migration-07.md

@@ -16,7 +16,7 @@ The migration steps are as follows:
 1. Do `garage repair --all-nodes --yes tables` and `garage repair --all-nodes --yes blocks`,
    check the logs and check that all data seems to be synced correctly between
    nodes. If you have time, do additional checks (`scrub`, `block_refs`, etc.)
-2. Disable API and web access. Garage does not support disabling
+2. Disable api and web access. Garage does not support disabling
    these endpoints but you can change the port number or stop your reverse
    proxy for instance.
 3. Check once again that your cluster is healty. Run again `garage repair --all-nodes --yes tables` which is quick.

doc/book/working-documents/migration-08.md

@@ -1,34 +0,0 @@
-+++
-title = "Migrating from 0.7 to 0.8"
-weight = 13
-+++
-
-**This guide explains how to migrate to 0.8 if you have an existing 0.7 cluster.
-We don't recommend trying to migrate to 0.8 directly from 0.6 or older.**
-
-**We make no guarantee that this migration will work perfectly:
-back up all your data before attempting it!**
-
-Garage v0.8 introduces new data tables that allow the counting of objects in buckets in order to implement bucket quotas.
-A manual migration step is required to first count objects in Garage buckets and populate these tables with accurate data.
-
-The migration steps are as follows:
-
-1. Disable API and web access. Garage v0.7 does not support disabling
-   these endpoints but you can change the port number or stop your reverse proxy for instance.
-2. Do `garage repair --all-nodes --yes tables` and `garage repair --all-nodes --yes blocks`,
-   check the logs and check that all data seems to be synced correctly between
-   nodes. If you have time, do additional checks (`scrub`, `block_refs`, etc.)
-3. Check that queues are empty: run `garage stats` to query them or inspect metrics in the Grafana dashboard.
-4. Turn off Garage v0.7
-5. **Backup the metadata folder of all your nodes!** For instance, use the following command
-	if your metadata directory is `/var/lib/garage/meta`: `cd /var/lib/garage ; tar -acf meta-v0.7.tar.zst meta/`
-6. Install Garage v0.8
-7. **Before starting Garage v0.8**, run the offline migration step: `garage offline-repair --yes object_counters`.
-   This can take a while to run, depending on the number of objects stored in your cluster.
-8. Turn on Garage v0.8
-9. Do `garage repair --all-nodes --yes tables` and `garage repair --all-nodes --yes blocks`.
-   Wait for a full table sync to run.
-10. Your upgraded cluster should be in a working state. Re-enable API and Web
-    access and check that everything went well.
-11. Monitor your cluster in the next hours to see if it works well under your production load, report any issue.

doc/talks/2022-06-23-stack/.gitignore

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-!.gitignore
-!assets/*.drawio.pdf
-
-!talk.pdf

doc/talks/2022-06-23-stack/Makefile

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-	pdflatex talk.tex
-
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-\title{Introducing Garage}
-\subtitle{a new storage platform for self-hosted geo-distributed clusters}
-\author{Deuxfleurs Association}
-\date{IMT Atlantique, 2022-06-23}
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-\begin{document}
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-\begin{frame}
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-	{\large\bf Deuxfleurs Association}
-	\vspace{1em}
-
-	\url{https://garagehq.deuxfleurs.fr/}
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-	Matrix channel: \texttt{\#garage:deuxfleurs.fr}
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-	\frametitle{Who we are}
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-			\textbf{Alex Auvolat}\\
-			PhD at Inria, team WIDE; co-founder of Deuxfleurs
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-			~
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-			~
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-			\textbf{Quentin Dufour}\\
-			PhD at Inria, team WIDE; co-founder of Deuxfleurs
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-	\begin{columns}[t]
-		\begin{column}{.2\textwidth}
-			\centering
-			\adjincludegraphics[width=.5\linewidth, valign=t]{assets/deuxfleurs.pdf}
-		\end{column}
-		\begin{column}{.6\textwidth}
-			\textbf{Deuxfleurs}\\
-			A non-profit self-hosting collective,\\
-			member of the CHATONS network
-		\end{column}
-		\begin{column}{.2\textwidth}
-			\centering
-			\adjincludegraphics[width=.7\linewidth, valign=t]{assets/logo_chatons.png}
-		\end{column}
-	\end{columns}
-
-\end{frame}
-
-\begin{frame}
-	\frametitle{Our objective at Deuxfleurs}
-	
-	\begin{center}
-		\textbf{Promote self-hosting and small-scale hosting\\
-			as an alternative to large cloud providers}
-	\end{center}
-	\vspace{2em}
-	\visible<2->{
-		Why is it hard?
-	}
-	\visible<3->{
-		\vspace{2em}
-		\begin{center}
-			\textbf{\underline{Resilience}}\\
-			{\footnotesize (we want good uptime/availability with low supervision)}
-		\end{center}
-	}
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to make a \underline{stable} system}
-
-	Enterprise-grade systems typically employ:
-	\vspace{1em}
-	\begin{itemize}
-		\item RAID
-		\item Redundant power grid + UPS
-		\item Redundant Internet connections
-		\item Low-latency links
-		\item ... 
-	\end{itemize}
-	\vspace{1em}
-	$\to$ it's costly and only worth it at DC scale
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to make a \underline{resilient} system}
-
-	\only<1,4-5>{
-		Instead, we use:
-		\vspace{1em}
-		\begin{itemize}
-			\item \textcolor<2->{gray}{Commodity hardware (e.g. old desktop PCs)}
-				\vspace{.5em}
-			\item<4-> \textcolor<5->{gray}{Commodity Internet (e.g. FTTB, FTTH) and power grid}
-				\vspace{.5em}
-			\item<5-> \textcolor<6->{gray}{\textbf{Geographical redundancy} (multi-site replication)}
-		\end{itemize}
-	}
-	\only<2>{
-		\begin{center}
-			\includegraphics[width=.8\linewidth]{assets/atuin.jpg}
-		\end{center}
-	}
-	\only<3>{
-		\begin{center}
-			\includegraphics[width=.8\linewidth]{assets/neptune.jpg}
-		\end{center}
-	}
-	\only<6>{
-		\begin{center}
-			\includegraphics[width=.5\linewidth]{assets/inframap.jpg}
-		\end{center}
-	}
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to make this happen}
-	\begin{center}
-		\only<1>{\includegraphics[width=.8\linewidth]{assets/slide1.png}}%
-		\only<2>{\includegraphics[width=.8\linewidth]{assets/slide2.png}}%
-		\only<3>{\includegraphics[width=.8\linewidth]{assets/slide3.png}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Distributed file systems are slow}
-	File systems are complex, for example:
-	\vspace{1em}
-	\begin{itemize}
-		\item Concurrent modification by several processes
-			\vspace{1em}
-		\item Folder hierarchies
-			\vspace{1em}
-		\item Other requirements of the POSIX spec
-	\end{itemize}
-	\vspace{1em}
-	Coordination in a distributed system is costly
-
-	\vspace{1em}
-	Costs explode with commodity hardware / Internet connections\\
-	{\small (we experienced this!)}
-\end{frame}
-
-\begin{frame}
-	\frametitle{A simpler solution: object storage}
-	Only two operations:
-	\vspace{1em}
-	\begin{itemize}
-		\item Put an object at a key
-			\vspace{1em}
-		\item Retrieve an object from its key
-	\end{itemize}
-	\vspace{1em}
-	{\footnotesize (and a few others)}
-
-	\vspace{1em}
-	Sufficient for many applications!
-\end{frame}
-
-\begin{frame}
-	\frametitle{A simpler solution: object storage}
-		\begin{center}
-			\includegraphics[width=.2\linewidth]{../2020-12-02_wide-team/img/Amazon-S3.jpg}
-			\hspace{5em}
-			\includegraphics[width=.2\linewidth]{assets/minio.png}
-		\end{center}
-		\vspace{1em}
-	S3: a de-facto standard, many compatible applications
-
-	\vspace{1em}
-
-	MinIO is self-hostable but not suited for geo-distributed deployments
-\end{frame}
-
-
-\begin{frame}
-	\frametitle{But what is Garage, exactly?}
-	\textbf{Garage is a self-hosted drop-in replacement for the Amazon S3 object store}\\
-	\vspace{.5em}
-	that implements resilience through geographical redundancy on commodity hardware
-		\begin{center}
-			\includegraphics[width=.8\linewidth]{assets/garageuses.png}
-		\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Overview}
-	\begin{center}
-		\only<1>{\includegraphics[width=.45\linewidth]{assets/garage2a.drawio.pdf}}%
-		\only<2>{\includegraphics[width=.45\linewidth]{assets/garage2b.drawio.pdf}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Garage is \emph{location-aware}}
-	\begin{center}
-		\includegraphics[width=\linewidth]{assets/location-aware.png}
-	\end{center}
-	\vspace{2em}
-	Garage replicates data on different zones when possible
-\end{frame}
-
-\begin{frame}
-	\frametitle{Garage is \emph{location-aware}}
-		\begin{center}
-			\includegraphics[width=.8\linewidth]{assets/map.png}
-		\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to spread files over different cluster nodes?}
-	\textbf{Consistent hashing (DynamoDB):}
-	\vspace{1em}
-
-	\begin{center}
-	\only<1>{\includegraphics[width=.45\columnwidth]{assets/consistent_hashing_1.pdf}}%
-	\only<2>{\includegraphics[width=.45\columnwidth]{assets/consistent_hashing_2.pdf}}%
-	\only<3>{\includegraphics[width=.45\columnwidth]{assets/consistent_hashing_3.pdf}}%
-	\only<4>{\includegraphics[width=.45\columnwidth]{assets/consistent_hashing_4.pdf}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to spread files over different cluster nodes?}
-	\textbf{Issues with consistent hashing:}
-	\vspace{1em}
-	\begin{itemize}
-		\item Doesn't dispatch data based on geographical location of nodes
-			\vspace{1em}
-		\item<2-> Geographically aware adaptation, try 1:\\
-			data quantities not well balanced between nodes
-			\vspace{1em}
-		\item<3-> Geographically aware adaptation, try 2:\\
-			too many reshuffles when adding/removing nodes
-	\end{itemize}
-\end{frame}
-
-\begin{frame}
-	\frametitle{How to spread files over different cluster nodes?}
-	\textbf{Garage's method: build an index table}
-	\vspace{1em}
-
-	Realization: we can actually precompute an optimal solution
-	\vspace{1em}
-
-	\visible<2->{
-		\begin{center}
-		\begin{tabular}{|l|l|l|l|}
-			\hline
-			\textbf{Partition} & \textbf{Node 1} & \textbf{Node 2} & \textbf{Node 3} \\
-			\hline
-			\hline
-			Partition 0 & Io (jupiter) & Drosera (atuin) & Courgette (neptune) \\
-			\hline
-			Partition 1 & Datura (atuin) & Courgette (neptune) & Io (jupiter) \\
-			\hline
-			Partition 2 & Io(jupiter) & Celeri (neptune) & Drosera (atuin) \\
-			\hline
-			\hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ & \hspace{1em}$\vdots$ \\
-			\hline
-			Partition 255 & Concombre (neptune) & Io (jupiter) & Drosera (atuin) \\
-			\hline
-		\end{tabular}
-		\end{center}
-	}
-	\vspace{1em}
-	\visible<3->{
-		The index table is built centrally using an optimal* algorithm,\\
-		then propagated to all nodes\\
-		\hfill\footnotesize *not yet optimal but will be soon
-	}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Garage's internal data structures}
-	\centering
-	\includegraphics[width=.75\columnwidth]{assets/garage_tables.pdf}
-\end{frame}
-
-%\begin{frame}
-%	\frametitle{Garage's architecture}
-%	\begin{center}
-%		\includegraphics[width=.35\linewidth]{assets/garage.drawio.pdf}
-%	\end{center}
-%\end{frame}
-
-\begin{frame}
-	\frametitle{Garage is \emph{coordination-free}:}
-	\begin{itemize}
-		\item No Raft or Paxos
-			\vspace{1em}
-		\item Internal data types are CRDTs
-			\vspace{1em}
-		\item All nodes are equivalent (no master/leader/index node)
-	\end{itemize}
-			\vspace{2em}
-	$\to$ less sensitive to higher latencies between nodes
-\end{frame}
-
-\begin{frame}
-	\frametitle{Consistency model}
-	\begin{itemize}
-		\item Not ACID (not required by S3 spec) / not linearizable
-			\vspace{1em}
-		\item \textbf{Read-after-write consistency}\\
-			{\footnotesize (stronger than eventual consistency)}
-	\end{itemize}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Impact on performances}
-		\begin{center}
-			\includegraphics[width=.8\linewidth]{assets/endpoint-latency-dc.png}
-		\end{center}
-\end{frame}
-
-
-\begin{frame}
-	\frametitle{An ever-increasing compatibility list}
-		\begin{center}
-			\includegraphics[width=.7\linewidth]{assets/compatibility.png}
-		\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Further plans for Garage}
-	\begin{center}
-		\only<1>{\includegraphics[width=.8\linewidth]{assets/slideB1.png}}%
-		\only<2>{\includegraphics[width=.8\linewidth]{assets/slideB2.png}}%
-		\only<3>{\includegraphics[width=.8\linewidth]{assets/slideB3.png}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{K2V Design}
-	\begin{itemize}
-		\item A new, custom, minimal API
-			\vspace{1em}
-		\item<2-> Exposes the partitoning mechanism of Garage\\
-			K2V = partition key / sort key / value (like Dynamo)
-			\vspace{1em}
-		\item<3-> Coordination-free, CRDT-friendly (inspired by Riak)\\
-			\vspace{1em}
-		\item<4-> Cryptography-friendly: values are binary blobs
-	\end{itemize}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Application: an e-mail storage server}
-	\begin{center}
-		\only<1>{\includegraphics[width=.9\linewidth]{assets/aerogramme.png}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Aerogramme data model}
-	\begin{center}
-		\only<1>{\includegraphics[width=.4\linewidth]{assets/aerogramme_datatype.drawio.pdf}}%
-		\only<2->{\includegraphics[width=.9\linewidth]{assets/aerogramme_keys.drawio.pdf}\vspace{1em}}%
-	\end{center}
-	\visible<3->{Aerogramme encrypts all stored values for privacy\\
-	(Garage server administrators can't read your mail)}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Different deployment scenarios}
-	\begin{center}
-		\only<1>{\includegraphics[width=.9\linewidth]{assets/aerogramme_components1.drawio.pdf}}%
-		\only<2>{\includegraphics[width=.9\linewidth]{assets/aerogramme_components2.drawio.pdf}}%
-	\end{center}
-\end{frame}
-
-\begin{frame}
-	\frametitle{A new model for building resilient software}
-	\begin{itemize}
-		\item Design a data model suited to K2V\\
-			{\footnotesize (see Cassandra docs on porting SQL data models to Cassandra)}
-			\vspace{1em}
-			\begin{itemize}
-				\item Use CRDTs or other eventually consistent data types (see e.g. Bayou)
-					\vspace{1em}
-				\item Store opaque binary blobs to provide End-to-End Encryption\\
-			\end{itemize}
-			\vspace{1em}
-		\item Store big blobs (files) in S3
-			\vspace{1em}
-		\item Let Garage manage sharding, replication, failover, etc.
-	\end{itemize}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Research perspectives}
-	\begin{itemize}
-		\item Write about Garage's global architecture \emph{(paper in progress)}
-			\vspace{1em}
-		\item Measure and improve Garage's performances
-			\vspace{1em}
-		\item Discuss the optimal layout algorithm, provide proofs
-			\vspace{1em}
-		\item Write about our proposed architecture for (E2EE) apps over K2V+S3
-	\end{itemize}
-\end{frame}
-
-\begin{frame}
-	\frametitle{Where to find us}
-	\begin{center}
-			\includegraphics[width=.25\linewidth]{../../logo/garage_hires.png}\\
-			\vspace{-1em}
-		\url{https://garagehq.deuxfleurs.fr/}\\
-		\url{mailto:garagehq@deuxfleurs.fr}\\
-		\texttt{\#garage:deuxfleurs.fr} on Matrix
-
-		\vspace{1.5em}
-			\includegraphics[width=.06\linewidth]{assets/rust_logo.png}
-			\includegraphics[width=.13\linewidth]{assets/AGPLv3_Logo.png}
-	\end{center}
-\end{frame}
-
-\end{document}
-
-%% vim: set ts=4 sw=4 tw=0 noet spelllang=en :

nix/common.nix

@@ -4,16 +4,18 @@ rec {
    */
   pkgsSrc = fetchTarball {
     # As of 2021-10-04
-    url = "https://github.com/NixOS/nixpkgs/archive/b27d18a412b071f5d7991d1648cfe78ee7afe68a.tar.gz";
+    url ="https://github.com/NixOS/nixpkgs/archive/b27d18a412b071f5d7991d1648cfe78ee7afe68a.tar.gz";
     sha256 = "1xy9zpypqfxs5gcq5dcla4bfkhxmh5nzn9dyqkr03lqycm9wg5cr";
   };
   cargo2nixSrc = fetchGit {
-    # As of 2022-08-29, stacking two patches: superboum@dedup_propagate and Alexis211@fix_fetchcrategit
-    url = "https://github.com/Alexis211/cargo2nix";
-    ref = "fix_fetchcrategit";
-    rev = "4b31c0cc05b6394916d46e9289f51263d81973b9";
+    # As of 2022-03-17
+    url = "https://github.com/superboum/cargo2nix";
+    ref = "main";
+    rev = "bcbf3ba99e9e01a61eb83a24624419c2dd9dec64";
   };
 
+
+
   /*
    * Shared objects
    */

nix/compile.nix

@@ -1,244 +0,0 @@
-{
-  system ? builtins.currentSystem,
-  target ? null,
-  compiler ? "rustc",
-  release ? false,
-  git_version ? null,
-}:
-
-with import ./common.nix;
-
-let
-  log = v: builtins.trace v v;
-
-  pkgs = import pkgsSrc {
-    inherit system; 
-    ${ if target == null then null else "crossSystem" } = { config = target; };
-    overlays = [ cargo2nixOverlay ];
-  };
-
-  /*
-   Rust and Nix triples are not the same. Cargo2nix has a dedicated library
-   to convert Nix triples to Rust ones. We need this conversion as we want to
-   set later options linked to our (rust) target in a generic way. Not only
-   the triple terminology is different, but also the "roles" are named differently.
-   Nix uses a build/host/target terminology where Nix's "host" maps to Cargo's "target".
-  */
-  rustTarget = log (pkgs.rustBuilder.rustLib.rustTriple pkgs.stdenv.hostPlatform);
-
-  /*
-   Cargo2nix is built for rustOverlay which installs Rust from Mozilla releases.
-   We want our own Rust to avoid incompatibilities, like we had with musl 1.2.0.
-   rustc was built with musl < 1.2.0 and nix shipped musl >= 1.2.0 which lead to compilation breakage.
-   So we want a Rust release that is bound to our Nix repository to avoid these problems.
-   See here for more info: https://musl.libc.org/time64.html
-   Because Cargo2nix does not support the Rust environment shipped by NixOS,
-   we emulate the structure of the Rust object created by rustOverlay.
-   In practise, rustOverlay ships rustc+cargo in a single derivation while
-   NixOS ships them in separate ones. We reunite them with symlinkJoin.
-   */
-  rustChannel = {
-    rustc = pkgs.symlinkJoin {
-      name = "rust-channel";
-      paths = [ 
-        pkgs.rustPlatform.rust.cargo
-        pkgs.rustPlatform.rust.rustc
-      ];
-    };
-    clippy = pkgs.symlinkJoin {
-      name = "clippy-channel";
-      paths = [ 
-        pkgs.rustPlatform.rust.cargo
-        pkgs.rustPlatform.rust.rustc
-        pkgs.clippy
-      ];
-    };
-  }.${compiler};
-
-  clippyBuilder = pkgs.writeScriptBin "clippy" ''
-    #!${pkgs.stdenv.shell}
-    . ${cargo2nixSrc + "/overlay/utils.sh"}
-    isBuildScript=
-    args=("$@")
-    for i in "''${!args[@]}"; do
-      if [ "xmetadata=" = "x''${args[$i]::9}" ]; then
-        args[$i]=metadata=$NIX_RUST_METADATA
-      elif [ "x--crate-name" = "x''${args[$i]}" ] && [ "xbuild_script_" = "x''${args[$i+1]::13}" ]; then
-        isBuildScript=1
-      fi
-    done
-    if [ "$isBuildScript" ]; then
-      args+=($NIX_RUST_BUILD_LINK_FLAGS)
-    else
-      args+=($NIX_RUST_LINK_FLAGS)
-    fi
-    touch invoke.log
-    echo "''${args[@]}" >>invoke.log
-
-    exec ${rustChannel}/bin/clippy-driver --deny warnings "''${args[@]}"
-  '';
-
-  buildEnv = (drv: {
-    rustc = drv.setBuildEnv;
-    clippy = ''
-      ${drv.setBuildEnv or "" }
-      echo
-      echo --- BUILDING WITH CLIPPY ---
-      echo 
-
-      export RUSTC=${clippyBuilder}/bin/clippy
-    '';
-  }.${compiler});
-
-  /*
-   Cargo2nix provides many overrides by default, you can take inspiration from them:
-   https://github.com/cargo2nix/cargo2nix/blob/master/overlay/overrides.nix
-
-   You can have a complete list of the available options by looking at the overriden object, mkcrate:
-   https://github.com/cargo2nix/cargo2nix/blob/master/overlay/mkcrate.nix
-  */
-  overrides = pkgs.rustBuilder.overrides.all ++ [
-    /*
-     [1] We add some logic to compile our crates with clippy, it provides us many additional lints
-
-     [2] We need to alter Nix hardening to make static binaries: PIE,
-     Position Independent Executables seems to be supported only on amd64. Having
-     this flag set either 1. make our executables crash or 2. compile as dynamic on some platforms.
-     Here, we deactivate it. Later (find `codegenOpts`), we reactivate it for supported targets
-     (only amd64 curently) through the `-static-pie` flag.
-     PIE is a feature used by ASLR, which helps mitigate security issues.
-     Learn more about Nix Hardening at: https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/cc-wrapper/add-hardening.sh
-
-     [3] We want to inject the git version while keeping the build deterministic.
-     As we do not want to consider the .git folder as part of the input source,
-     we ask the user (the CI often) to pass the value to Nix.
-
-     [4] We ship some parts of the code disabled by default by putting them behind a flag.
-     It speeds up the compilation (when the feature is not required) and released crates have less dependency by default (less attack surface, disk space, etc.).
-     But we want to ship these additional features when we release Garage.
-     In the end, we chose to exclude all features from debug builds while putting (all of) them in the release builds.
-
-     [5] We don't want libsodium-sys and zstd-sys to try to use pkgconfig to build against a system library.
-     However the features to do so get activated for some reason (due to a bug in cargo2nix?),
-     so disable them manually here.
-    */
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage";
-      overrideAttrs = drv:
-        (if git_version != null then {
-          /* [3] */ preConfigure = ''
-            ${drv.preConfigure or ""}
-            export GIT_VERSION="${git_version}"
-          '';
-        } else {})
-        //
-      {
-        /* [1] */ setBuildEnv = (buildEnv drv);
-        /* [2] */ hardeningDisable = [ "pie" ];
-      };
-      overrideArgs = old: {
-        /* [4] */ features = [ "bundled-libs" "sled" "metrics" "k2v" ]
-          ++ (if release then [ "kubernetes-discovery" "telemetry-otlp" "lmdb" "sqlite" ] else []);
-      };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_rpc";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_db";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_util";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_table";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_block";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_model";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_api";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "garage_web";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "k2v-client";
-      overrideAttrs = drv: { /* [1] */ setBuildEnv = (buildEnv drv); };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "libsodium-sys";
-      overrideArgs = old: {
-        features = [ ]; /* [5] */
-      };
-    })
-
-    (pkgs.rustBuilder.rustLib.makeOverride {
-      name = "zstd-sys";
-      overrideArgs = old: {
-        features = [ ]; /* [5] */
-      };
-    })
-  ];
-
-  packageFun = import ../Cargo.nix;
-
-  /*
-    We compile fully static binaries with musl to simplify deployment on most systems.
-    When possible, we reactivate PIE hardening (see above).
-
-    Also, if you set the RUSTFLAGS environment variable, the following parameters will
-    be ignored.
-
-    For more information on static builds, please refer to Rust's RFC 1721.
-    https://rust-lang.github.io/rfcs/1721-crt-static.html#specifying-dynamicstatic-c-runtime-linkage
-  */
-
-  codegenOpts = {
-   "armv6l-unknown-linux-musleabihf" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* compile as dynamic with static-pie */
-   "aarch64-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* segfault with static-pie */
-   "i686-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static" ]; /* segfault with static-pie */
-   "x86_64-unknown-linux-musl" = [ "target-feature=+crt-static" "link-arg=-static-pie" ];
-  };
-
-in
-  /*
-   The following definition is not elegant as we use a low level function of Cargo2nix
-   that enables us to pass our custom rustChannel object. We need this low level definition
-   to pass Nix's Rust toolchains instead of Mozilla's one.
-
-   target is mandatory but must be kept to null to allow cargo2nix to set it to the appropriate value
-   for each crate.
-  */ 
-  pkgs.rustBuilder.makePackageSet {
-    inherit packageFun rustChannel release codegenOpts;
-    packageOverrides = overrides;
-    target = null;
-
-    buildRustPackages = pkgs.buildPackages.rustBuilder.makePackageSet {
-      inherit rustChannel packageFun codegenOpts;
-      packageOverrides = overrides;
-      target = null;
-    };
-  }

nix/manifest-tool.nix

@@ -1,23 +0,0 @@
-pkgs:
-pkgs.buildGoModule rec {
-  pname = "manifest-tool";
-  version = "2.0.5";
-
-  src = pkgs.fetchFromGitHub {
-    owner = "estesp";
-    repo = "manifest-tool";
-    rev = "v${version}";
-    sha256 = "hjCGKnE0yrlnF/VIzOwcDzmQX3Wft+21KCny/opqdLg=";
-  } + "/v2";
-
-  vendorSha256 = null;
-
-  checkPhase = "true";
-
-  meta = with pkgs.lib; {
-    description = "Command line tool to create and query container image manifest list/indexes";
-    homepage = "https://github.com/estesp/manifest-tool";
-    license = licenses.asl20;
-    platforms = platforms.linux;
-  };
-}

nix/nix.conf

@@ -1,9 +1,4 @@
 substituters = https://cache.nixos.org https://nix.web.deuxfleurs.fr
 trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix.web.deuxfleurs.fr:eTGL6kvaQn6cDR/F9lDYUIP9nCVR/kkshYfLDJf1yKs=
 max-jobs = auto
-cores = 0
-log-lines = 200
-filter-syscalls = false
-sandbox = false
-keep-outputs = true
-keep-derivations = true
+cores = 4

script/dev-cluster.sh

@@ -11,7 +11,7 @@ PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:${NIX_RELEASE}:$PATH"
 FANCYCOLORS=("41m" "42m" "44m" "45m" "100m" "104m")
 
 export RUST_BACKTRACE=1 
-export RUST_LOG=garage=info,garage_api=debug,netapp=trace
+export RUST_LOG=garage=info,garage_api=debug
 MAIN_LABEL="\e[${FANCYCOLORS[0]}[main]\e[49m"
 
 WHICH_GARAGE=$(which garage || exit 1)

script/not-dynamic.sh

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-
-set -e
-
-if [ "$#" -ne 1 ]; then
-    echo "[fail] usage: $0 binary"
-    exit 2
-fi
-
-if file $1 | grep 'dynamically linked' 2>&1; then
-    echo "[fail] $1 is dynamic"
-    exit 1
-fi
-echo "[ok] $1 is probably static"

shell.nix

@@ -1,5 +1,8 @@
 {
   system ? builtins.currentSystem,
+  rust ? true,
+  integration ? true,
+  release ? true,
 }:
 
 with import ./nix/common.nix;
@@ -10,63 +13,12 @@ let
     overlays = [ cargo2nixOverlay ];
   };
   kaniko = (import ./nix/kaniko.nix) pkgs;
-  manifest-tool = (import ./nix/manifest-tool.nix) pkgs;
   winscp = (import ./nix/winscp.nix) pkgs;
 
 in
-  {
 
-    /* --- Rust Shell ---
-     * Use it to compile Garage
-     */
-    rust = pkgs.mkShell {
-      shellHook = ''
-function refresh_toolchain {
-  nix copy \
-    --to 's3://nix?endpoint=garage.deuxfleurs.fr&region=garage&secret-key=/etc/nix/signing-key.sec' \
-    $(nix-store -qR \
-      $(nix-build --quiet --no-build-output --no-out-link nix/toolchain.nix))
-}
-      '';
-
-      nativeBuildInputs = [
-        #pkgs.rustPlatform.rust.rustc
-        pkgs.rustPlatform.rust.cargo
-        #pkgs.clippy
-        pkgs.rustfmt
-        #pkgs.perl
-        #pkgs.protobuf
-        #pkgs.pkg-config
-        #pkgs.openssl
-        pkgs.file
-        #cargo2nix.packages.x86_64-linux.cargo2nix
-      ];
-    };
-
-    /* --- Integration shell ---
-     * Use it to test Garage with common S3 clients
-     */
-    integration = pkgs.mkShell {
-      nativeBuildInputs = [
-        winscp
-        pkgs.s3cmd
-        pkgs.awscli2
-        pkgs.minio-client
-        pkgs.rclone
-        pkgs.socat
-        pkgs.psmisc
-        pkgs.which
-        pkgs.openssl
-        pkgs.curl
-        pkgs.jq
-      ];
-    };
-
-    /* --- Release shell ---
-     * A shell built to make releasing easier
-     */
-    release = pkgs.mkShell {
-      shellHook = ''
+pkgs.mkShell {
+  shellHook = ''
 function to_s3 {
   aws \
       --endpoint-url https://garage.deuxfleurs.fr \
@@ -85,34 +37,6 @@ function to_docker {
     --verbosity=debug
 }
 
-function multiarch_docker {
-        manifest-tool push from-spec <(cat <<EOF
-image: dxflrs/garage:''${CONTAINER_TAG}
-manifests:
-  -
-    image: dxflrs/arm64_garage:''${CONTAINER_TAG}
-    platform:
-      architecture: arm64
-      os: linux
-  -
-    image: dxflrs/amd64_garage:''${CONTAINER_TAG}
-    platform:
-      architecture: amd64
-      os: linux
-  -
-    image: dxflrs/386_garage:''${CONTAINER_TAG}
-    platform:
-      architecture: 386
-      os: linux
-  -
-    image: dxflrs/arm_garage:''${CONTAINER_TAG}
-    platform:
-      architecture: arm
-      os: linux
-EOF
-        )
-}
-
 function refresh_index {
   aws \
       --endpoint-url https://garage.deuxfleurs.fr \
@@ -138,13 +62,45 @@ function refresh_index {
       result/share/_releases.html \
       s3://garagehq.deuxfleurs.fr/
 }
-        '';
-      nativeBuildInputs = [
-        pkgs.awscli2
-        kaniko 
-        manifest-tool
-      ];
-    };
-  }
 
+function refresh_toolchain {
+  nix copy \
+    --to 's3://nix?endpoint=garage.deuxfleurs.fr&region=garage&secret-key=/etc/nix/signing-key.sec' \
+    $(nix-store -qR \
+      $(nix-build --quiet --no-build-output --no-out-link nix/toolchain.nix))
+}
+  '';
 
+  nativeBuildInputs = 
+   (if rust then [
+     pkgs.rustPlatform.rust.rustc
+     pkgs.rustPlatform.rust.cargo
+     pkgs.clippy
+     pkgs.rustfmt
+     pkgs.perl
+     pkgs.protobuf
+     pkgs.pkg-config
+     pkgs.openssl
+     cargo2nix.packages.x86_64-linux.cargo2nix
+    ] else [])
+   ++
+   (if integration then [
+     winscp
+     pkgs.s3cmd
+     pkgs.awscli2
+     pkgs.minio-client
+     pkgs.rclone
+     pkgs.socat
+     pkgs.psmisc
+     pkgs.which
+     pkgs.openssl
+     pkgs.curl
+     pkgs.jq
+    ] else [])
+   ++
+   (if release then [ 
+     pkgs.awscli2
+     kaniko 
+    ] else [])
+   ;
+}

src/api/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "garage_api"
-version = "0.8.0"
+version = "0.7.0"
 authors = ["Alex Auvolat <alex@adnab.me>"]
 edition = "2018"
 license = "AGPL-3.0"
@@ -14,31 +14,30 @@ path = "lib.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-garage_model = { version = "0.8.0", path = "../model" }
-garage_table = { version = "0.8.0", path = "../table" }
-garage_block = { version = "0.8.0", path = "../block" }
-garage_util = { version = "0.8.0", path = "../util" }
-garage_rpc = { version = "0.8.0", path = "../rpc" }
+garage_model = { version = "0.7.0", path = "../model" }
+garage_table = { version = "0.7.0", path = "../table" }
+garage_block = { version = "0.7.0", path = "../block" }
+garage_util = { version = "0.7.0", path = "../util" }
+garage_rpc = { version = "0.7.0", path = "../rpc" }
 
 async-trait = "0.1.7"
 base64 = "0.13"
 bytes = "1.0"
 chrono = "0.4"
-crypto-common = "0.1"
+crypto-mac = "0.10"
 err-derive = "0.3"
 hex = "0.4"
-hmac = "0.12"
+hmac = "0.10"
 idna = "0.2"
 tracing = "0.1.30"
-md-5 = "0.10"
+md-5 = "0.9"
 nom = "7.1"
-sha2 = "0.10"
+sha2 = "0.9"
 
 futures = "0.3"
 futures-util = "0.3"
 pin-project = "1.0"
 tokio = { version = "1.0", default-features = false, features = ["rt", "rt-multi-thread", "io-util", "net", "time", "macros", "sync", "signal", "fs"] }
-tokio-stream = "0.1"
 
 form_urlencoded = "1.0.0"
 http = "0.2"
@@ -55,9 +54,9 @@ quick-xml = { version = "0.21", features = [ "serialize" ] }
 url = "2.1"
 
 opentelemetry = "0.17"
-opentelemetry-prometheus = { version = "0.10", optional = true }
-prometheus = { version = "0.13", optional = true }
+opentelemetry-prometheus = "0.10"
+opentelemetry-otlp = "0.10"
+prometheus = "0.13"
 
 [features]
 k2v = [ "garage_util/k2v", "garage_model/k2v" ]
-metrics = [ "opentelemetry-prometheus", "prometheus" ]

src/api/admin/api_server.rs

@@ -1,17 +1,15 @@
-use std::net::SocketAddr;
 use std::sync::Arc;
 
 use async_trait::async_trait;
 
 use futures::future::Future;
-use http::header::{ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN, ALLOW};
+use http::header::{
+	ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN, ALLOW, CONTENT_TYPE,
+};
 use hyper::{Body, Request, Response};
 
-use opentelemetry::trace::SpanRef;
-
-#[cfg(feature = "metrics")]
+use opentelemetry::trace::{SpanRef, Tracer};
 use opentelemetry_prometheus::PrometheusExporter;
-#[cfg(feature = "metrics")]
 use prometheus::{Encoder, TextEncoder};
 
 use garage_model::garage::Garage;
@@ -27,17 +25,14 @@ use crate::admin::router::{Authorization, Endpoint};
 
 pub struct AdminApiServer {
 	garage: Arc<Garage>,
-	#[cfg(feature = "metrics")]
 	exporter: PrometheusExporter,
 	metrics_token: Option<String>,
 	admin_token: Option<String>,
 }
 
 impl AdminApiServer {
-	pub fn new(
-		garage: Arc<Garage>,
-		#[cfg(feature = "metrics")] exporter: PrometheusExporter,
-	) -> Self {
+	pub fn new(garage: Arc<Garage>) -> Self {
+		let exporter = opentelemetry_prometheus::exporter().init();
 		let cfg = &garage.config.admin;
 		let metrics_token = cfg
 			.metrics_token
@@ -49,22 +44,21 @@ impl AdminApiServer {
 			.map(|tok| format!("Bearer {}", tok));
 		Self {
 			garage,
-			#[cfg(feature = "metrics")]
 			exporter,
 			metrics_token,
 			admin_token,
 		}
 	}
 
-	pub async fn run(
-		self,
-		bind_addr: SocketAddr,
-		shutdown_signal: impl Future<Output = ()>,
-	) -> Result<(), GarageError> {
-		let region = self.garage.config.s3_api.s3_region.clone();
-		ApiServer::new(region, self)
-			.run_server(bind_addr, shutdown_signal)
-			.await
+	pub async fn run(self, shutdown_signal: impl Future<Output = ()>) -> Result<(), GarageError> {
+		if let Some(bind_addr) = self.garage.config.admin.api_bind_addr {
+			let region = self.garage.config.s3_api.s3_region.clone();
+			ApiServer::new(region, self)
+				.run_server(bind_addr, shutdown_signal)
+				.await
+		} else {
+			Ok(())
+		}
 	}
 
 	fn handle_options(&self, _req: &Request<Body>) -> Result<Response<Body>, Error> {
@@ -77,31 +71,22 @@ impl AdminApiServer {
 	}
 
 	fn handle_metrics(&self) -> Result<Response<Body>, Error> {
-		#[cfg(feature = "metrics")]
-		{
-			use opentelemetry::trace::Tracer;
+		let mut buffer = vec![];
+		let encoder = TextEncoder::new();
 
-			let mut buffer = vec![];
-			let encoder = TextEncoder::new();
+		let tracer = opentelemetry::global::tracer("garage");
+		let metric_families = tracer.in_span("admin/gather_metrics", |_| {
+			self.exporter.registry().gather()
+		});
 
-			let tracer = opentelemetry::global::tracer("garage");
-			let metric_families = tracer.in_span("admin/gather_metrics", |_| {
-				self.exporter.registry().gather()
-			});
+		encoder
+			.encode(&metric_families, &mut buffer)
+			.ok_or_internal_error("Could not serialize metrics")?;
 
-			encoder
-				.encode(&metric_families, &mut buffer)
-				.ok_or_internal_error("Could not serialize metrics")?;
-
-			Ok(Response::builder()
-				.status(200)
-				.header(http::header::CONTENT_TYPE, encoder.format_type())
-				.body(Body::from(buffer))?)
-		}
-		#[cfg(not(feature = "metrics"))]
-		Err(Error::bad_request(
-			"Garage was built without the metrics feature".to_string(),
-		))
+		Ok(Response::builder()
+			.status(200)
+			.header(CONTENT_TYPE, encoder.format_type())
+			.body(Body::from(buffer))?)
 	}
 }
 

src/api/admin/cluster.rs

@@ -18,8 +18,7 @@ use crate::helpers::{json_ok_response, parse_json_body};
 pub async fn handle_get_cluster_status(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
 	let res = GetClusterStatusResponse {
 		node: hex::encode(garage.system.id),
-		garage_version: garage_util::version::garage_version(),
-		garage_features: garage_util::version::garage_features(),
+		garage_version: garage.system.garage_version(),
 		db_engine: garage.db.engine(),
 		known_nodes: garage
 			.system
@@ -100,7 +99,6 @@ fn get_cluster_layout(garage: &Arc<Garage>) -> GetClusterLayoutResponse {
 struct GetClusterStatusResponse {
 	node: String,
 	garage_version: &'static str,
-	garage_features: Option<&'static [&'static str]>,
 	db_engine: String,
 	known_nodes: HashMap<String, KnownNodeResp>,
 	layout: GetClusterLayoutResponse,

src/api/generic_server.rs

@@ -174,11 +174,7 @@ impl<A: ApiHandler> ApiServer<A> {
 
 		let current_context = Context::current();
 		let current_span = current_context.span();
-		current_span.update_name::<String>(format!(
-			"{} API {}",
-			A::API_NAME_DISPLAY,
-			endpoint.name()
-		));
+		current_span.update_name::<String>(format!("S3 API {}", endpoint.name()));
 		current_span.set_attribute(KeyValue::new("endpoint", endpoint.name()));
 		endpoint.add_span_attributes(current_span);
 

src/api/k2v/api_server.rs

@@ -1,4 +1,3 @@
-use std::net::SocketAddr;
 use std::sync::Arc;
 
 use async_trait::async_trait;
@@ -37,13 +36,20 @@ pub(crate) struct K2VApiEndpoint {
 impl K2VApiServer {
 	pub async fn run(
 		garage: Arc<Garage>,
-		bind_addr: SocketAddr,
-		s3_region: String,
 		shutdown_signal: impl Future<Output = ()>,
 	) -> Result<(), GarageError> {
-		ApiServer::new(s3_region, K2VApiServer { garage })
+		if let Some(cfg) = &garage.config.k2v_api {
+			let bind_addr = cfg.api_bind_addr;
+
+			ApiServer::new(
+				garage.config.s3_api.s3_region.clone(),
+				K2VApiServer { garage },
+			)
 			.run_server(bind_addr, shutdown_signal)
 			.await
+		} else {
+			Ok(())
+		}
 	}
 }
 

src/api/s3/api_server.rs

@@ -1,4 +1,3 @@
-use std::net::SocketAddr;
 use std::sync::Arc;
 
 use async_trait::async_trait;
@@ -44,13 +43,16 @@ pub(crate) struct S3ApiEndpoint {
 impl S3ApiServer {
 	pub async fn run(
 		garage: Arc<Garage>,
-		addr: SocketAddr,
-		s3_region: String,
 		shutdown_signal: impl Future<Output = ()>,
 	) -> Result<(), GarageError> {
-		ApiServer::new(s3_region, S3ApiServer { garage })
-			.run_server(addr, shutdown_signal)
-			.await
+		let addr = garage.config.s3_api.api_bind_addr;
+
+		ApiServer::new(
+			garage.config.s3_api.s3_region.clone(),
+			S3ApiServer { garage },
+		)
+		.run_server(addr, shutdown_signal)
+		.await
 	}
 
 	async fn handle_request_without_bucket(

src/api/s3/bucket.rs

@@ -295,6 +295,7 @@ fn parse_create_bucket_xml(xml_bytes: &[u8]) -> Option<Option<String>> {
 
 	let mut ret = None;
 	for item in cbc.children() {
+		println!("{:?}", item);
 		if item.has_tag_name("LocationConstraint") {
 			if ret != None {
 				return None;

src/api/s3/copy.rs

@@ -5,12 +5,9 @@ use std::time::{Duration, SystemTime, UNIX_EPOCH};
 use futures::{stream, stream::Stream, StreamExt, TryFutureExt};
 use md5::{Digest as Md5Digest, Md5};
 
-use bytes::Bytes;
 use hyper::{Body, Request, Response};
 use serde::Serialize;
 
-use garage_rpc::netapp::bytes_buf::BytesBuf;
-use garage_rpc::rpc_helper::OrderTag;
 use garage_table::*;
 use garage_util::data::*;
 use garage_util::time::*;
@@ -308,18 +305,13 @@ pub async fn handle_upload_part_copy(
 	// if and only if the block returned is a block that already existed
 	// in the Garage data store (thus we don't need to save it again).
 	let garage2 = garage.clone();
-	let order_stream = OrderTag::stream();
 	let source_blocks = stream::iter(blocks_to_copy)
-		.enumerate()
-		.flat_map(|(i, (block_hash, range_to_copy))| {
+		.flat_map(|(block_hash, range_to_copy)| {
 			let garage3 = garage2.clone();
 			stream::once(async move {
-				let data = garage3
-					.block_manager
-					.rpc_get_block(&block_hash, Some(order_stream.order(i as u64)))
-					.await?;
+				let data = garage3.block_manager.rpc_get_block(&block_hash).await?;
 				match range_to_copy {
-					Some(r) => Ok((data.slice(r), None)),
+					Some(r) => Ok((data[r].to_vec(), None)),
 					None => Ok((data, Some(block_hash))),
 				}
 			})
@@ -561,13 +553,13 @@ impl CopyPreconditionHeaders {
 	}
 }
 
-type BlockStreamItemOk = (Bytes, Option<Hash>);
+type BlockStreamItemOk = (Vec<u8>, Option<Hash>);
 type BlockStreamItem = Result<BlockStreamItemOk, garage_util::error::Error>;
 
 struct Defragmenter<S: Stream<Item = BlockStreamItem>> {
 	block_size: usize,
 	block_stream: Pin<Box<stream::Peekable<S>>>,
-	buffer: BytesBuf,
+	buffer: Vec<u8>,
 	hash: Option<Hash>,
 }
 
@@ -576,7 +568,7 @@ impl<S: Stream<Item = BlockStreamItem>> Defragmenter<S> {
 		Self {
 			block_size,
 			block_stream,
-			buffer: BytesBuf::new(),
+			buffer: vec![],
 			hash: None,
 		}
 	}
@@ -594,7 +586,7 @@ impl<S: Stream<Item = BlockStreamItem>> Defragmenter<S> {
 
 			if self.buffer.is_empty() {
 				let (next_block, next_block_hash) = self.block_stream.next().await.unwrap()?;
-				self.buffer.extend(next_block);
+				self.buffer = next_block;
 				self.hash = next_block_hash;
 			} else if self.buffer.len() + peeked_next_block.len() > self.block_size {
 				break;
@@ -605,11 +597,11 @@ impl<S: Stream<Item = BlockStreamItem>> Defragmenter<S> {
 			}
 		}
 
-		Ok((self.buffer.take_all(), self.hash.take()))
+		Ok((std::mem::take(&mut self.buffer), self.hash.take()))
 	}
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct CopyObjectResult {
 	#[serde(rename = "LastModified")]
 	pub last_modified: s3_xml::Value,
@@ -617,7 +609,7 @@ pub struct CopyObjectResult {
 	pub etag: s3_xml::Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct CopyPartResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -662,6 +654,7 @@ mod tests {
 			last_modified: s3_xml::Value("2011-04-11T20:34:56.000Z".into()),
 			etag: s3_xml::Value("\"9b2cf535f27731c974343645a3985328\"".into()),
 		};
+		println!("{}", to_xml_with_header(&v)?);
 
 		assert_eq!(to_xml_with_header(&v)?, expected_retval);
 

src/api/s3/delete.rs

@@ -64,13 +64,14 @@ pub async fn handle_delete(
 	bucket_id: Uuid,
 	key: &str,
 ) -> Result<Response<Body>, Error> {
-	match handle_delete_internal(&garage, bucket_id, key).await {
-		Ok(_) | Err(Error::NoSuchKey) => Ok(Response::builder()
-			.status(StatusCode::NO_CONTENT)
-			.body(Body::from(vec![]))
-			.unwrap()),
-		Err(e) => Err(e),
-	}
+	let (_deleted_version, delete_marker_version) =
+		handle_delete_internal(&garage, bucket_id, key).await?;
+
+	Ok(Response::builder()
+		.header("x-amz-version-id", hex::encode(delete_marker_version))
+		.status(StatusCode::NO_CONTENT)
+		.body(Body::from(vec![]))
+		.unwrap())
 }
 
 pub async fn handle_delete_objects(

src/api/s3/get.rs

@@ -2,19 +2,16 @@
 use std::sync::Arc;
 use std::time::{Duration, UNIX_EPOCH};
 
-use futures::future;
-use futures::stream::{self, StreamExt};
+use futures::stream::*;
 use http::header::{
 	ACCEPT_RANGES, CONTENT_LENGTH, CONTENT_RANGE, CONTENT_TYPE, ETAG, IF_MODIFIED_SINCE,
 	IF_NONE_MATCH, LAST_MODIFIED, RANGE,
 };
+use hyper::body::Bytes;
 use hyper::{Body, Request, Response, StatusCode};
-use tokio::sync::mpsc;
 
-use garage_rpc::rpc_helper::{netapp::stream::ByteStream, OrderTag};
 use garage_table::EmptyKey;
 use garage_util::data::*;
-use garage_util::error::OkOrMessage;
 
 use garage_model::garage::Garage;
 use garage_model::s3::object_table::*;
@@ -245,56 +242,36 @@ pub async fn handle_get(
 			Ok(resp_builder.body(body)?)
 		}
 		ObjectVersionData::FirstBlock(_, first_block_hash) => {
-			let (tx, rx) = mpsc::channel(2);
+			let read_first_block = garage.block_manager.rpc_get_block(first_block_hash);
+			let get_next_blocks = garage.version_table.get(&last_v.uuid, &EmptyKey);
 
-			let order_stream = OrderTag::stream();
-			let first_block_hash = *first_block_hash;
-			let version_uuid = last_v.uuid;
+			let (first_block, version) = futures::try_join!(read_first_block, get_next_blocks)?;
+			let version = version.ok_or(Error::NoSuchKey)?;
 
-			tokio::spawn(async move {
-				match async {
-					let garage2 = garage.clone();
-					let version_fut = tokio::spawn(async move {
-						garage2.version_table.get(&version_uuid, &EmptyKey).await
-					});
+			let mut blocks = version
+				.blocks
+				.items()
+				.iter()
+				.map(|(_, vb)| (vb.hash, None))
+				.collect::<Vec<_>>();
+			blocks[0].1 = Some(first_block);
 
-					let stream_block_0 = garage
-						.block_manager
-						.rpc_get_block_streaming(&first_block_hash, Some(order_stream.order(0)))
-						.await?;
-					tx.send(stream_block_0)
-						.await
-						.ok_or_message("channel closed")?;
-
-					let version = version_fut.await.unwrap()?.ok_or(Error::NoSuchKey)?;
-					for (i, (_, vb)) in version.blocks.items().iter().enumerate().skip(1) {
-						let stream_block_i = garage
-							.block_manager
-							.rpc_get_block_streaming(&vb.hash, Some(order_stream.order(i as u64)))
-							.await?;
-						tx.send(stream_block_i)
-							.await
-							.ok_or_message("channel closed")?;
+			let body_stream = futures::stream::iter(blocks)
+				.map(move |(hash, data_opt)| {
+					let garage = garage.clone();
+					async move {
+						if let Some(data) = data_opt {
+							Ok(Bytes::from(data))
+						} else {
+							garage
+								.block_manager
+								.rpc_get_block(&hash)
+								.await
+								.map(Bytes::from)
+						}
 					}
-
-					Ok::<(), Error>(())
-				}
-				.await
-				{
-					Ok(()) => (),
-					Err(e) => {
-						let err = std::io::Error::new(
-							std::io::ErrorKind::Other,
-							format!("Error while getting object data: {}", e),
-						);
-						let _ = tx
-							.send(Box::pin(stream::once(future::ready(Err(err)))))
-							.await;
-					}
-				}
-			});
-
-			let body_stream = tokio_stream::wrappers::ReceiverStream::new(rx).flatten();
+				})
+				.buffered(2);
 
 			let body = hyper::body::Body::wrap_stream(body_stream);
 			Ok(resp_builder.body(body)?)
@@ -445,79 +422,40 @@ fn body_from_blocks_range(
 		all_blocks.len(),
 		4 + ((end - begin) / std::cmp::max(all_blocks[0].1.size as u64, 1024)) as usize,
 	));
-	let mut block_offset: u64 = 0;
+	let mut true_offset = 0;
 	for (_, b) in all_blocks.iter() {
-		if block_offset >= end {
+		if true_offset >= end {
 			break;
 		}
 		// Keep only blocks that have an intersection with the requested range
-		if block_offset < end && block_offset + b.size > begin {
-			blocks.push((*b, block_offset));
+		if true_offset < end && true_offset + b.size > begin {
+			blocks.push((*b, true_offset));
 		}
-		block_offset += b.size as u64;
+		true_offset += b.size;
 	}
 
-	let order_stream = OrderTag::stream();
 	let body_stream = futures::stream::iter(blocks)
-		.enumerate()
-		.map(move |(i, (block, block_offset))| {
+		.map(move |(block, true_offset)| {
 			let garage = garage.clone();
 			async move {
-				garage
-					.block_manager
-					.rpc_get_block_streaming(&block.hash, Some(order_stream.order(i as u64)))
-					.await
-					.unwrap_or_else(|e| error_stream(i, e))
-					.scan(block_offset, move |chunk_offset, chunk| {
-						let r = match chunk {
-							Ok(chunk_bytes) => {
-								let chunk_len = chunk_bytes.len() as u64;
-								let r = if *chunk_offset >= end {
-									// The current chunk is after the part we want to read.
-									// Returning None here will stop the scan, the rest of the
-									// stream will be ignored
-									None
-								} else if *chunk_offset + chunk_len <= begin {
-									// The current chunk is before the part we want to read.
-									// We return a None that will be removed by the filter_map
-									// below.
-									Some(None)
-								} else {
-									// The chunk has an intersection with the requested range
-									let start_in_chunk = if *chunk_offset > begin {
-										0
-									} else {
-										begin - *chunk_offset
-									};
-									let end_in_chunk = if *chunk_offset + chunk_len < end {
-										chunk_len
-									} else {
-										end - *chunk_offset
-									};
-									Some(Some(Ok(chunk_bytes
-										.slice(start_in_chunk as usize..end_in_chunk as usize))))
-								};
-								*chunk_offset += chunk_bytes.len() as u64;
-								r
-							}
-							Err(e) => Some(Some(Err(e))),
-						};
-						futures::future::ready(r)
-					})
-					.filter_map(futures::future::ready)
+				let data = garage.block_manager.rpc_get_block(&block.hash).await?;
+				let data = Bytes::from(data);
+				let start_in_block = if true_offset > begin {
+					0
+				} else {
+					begin - true_offset
+				};
+				let end_in_block = if true_offset + block.size < end {
+					block.size
+				} else {
+					end - true_offset
+				};
+				Result::<Bytes, Error>::Ok(
+					data.slice(start_in_block as usize..end_in_block as usize),
+				)
 			}
 		})
-		.buffered(2)
-		.flatten();
+		.buffered(2);
 
 	hyper::body::Body::wrap_stream(body_stream)
 }
-
-fn error_stream(i: usize, e: garage_util::error::Error) -> ByteStream {
-	Box::pin(futures::stream::once(async move {
-		Err(std::io::Error::new(
-			std::io::ErrorKind::Other,
-			format!("Could not get block {}: {}", i, e),
-		))
-	}))
-}

src/api/s3/put.rs

@@ -1,4 +1,4 @@
-use std::collections::{BTreeMap, BTreeSet, HashMap};
+use std::collections::{BTreeMap, BTreeSet, HashMap, VecDeque};
 use std::sync::Arc;
 
 use futures::prelude::*;
@@ -8,14 +8,7 @@ use hyper::{Request, Response};
 use md5::{digest::generic_array::*, Digest as Md5Digest, Md5};
 use sha2::Sha256;
 
-use opentelemetry::{
-	trace::{FutureExt as OtelFutureExt, TraceContextExt, Tracer},
-	Context,
-};
-
-use garage_rpc::netapp::bytes_buf::BytesBuf;
 use garage_table::*;
-use garage_util::async_hash::*;
 use garage_util::data::*;
 use garage_util::error::Error as GarageError;
 use garage_util::time::*;
@@ -109,7 +102,7 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 					size,
 					etag: data_md5sum_hex.clone(),
 				},
-				first_block.to_vec(),
+				first_block,
 			)),
 		};
 
@@ -137,7 +130,7 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	garage.version_table.insert(&version).await?;
 
 	// Transfer data and verify checksum
-	let first_block_hash = async_blake2sum(first_block.clone()).await;
+	let first_block_hash = blake2sum(&first_block[..]);
 
 	let tx_result = (|| async {
 		let (total_size, data_md5sum, data_sha256sum) = read_and_put_blocks(
@@ -280,23 +273,14 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	garage: &Garage,
 	version: &Version,
 	part_number: u64,
-	first_block: Bytes,
+	first_block: Vec<u8>,
 	first_block_hash: Hash,
 	chunker: &mut StreamChunker<S>,
 ) -> Result<(u64, GenericArray<u8, typenum::U16>, Hash), Error> {
-	let tracer = opentelemetry::global::tracer("garage");
-
-	let md5hasher = AsyncHasher::<Md5>::new();
-	let sha256hasher = AsyncHasher::<Sha256>::new();
-
-	futures::future::join(
-		md5hasher.update(first_block.clone()),
-		sha256hasher.update(first_block.clone()),
-	)
-	.with_context(Context::current_with_span(
-		tracer.start("Hash first block (md5, sha256)"),
-	))
-	.await;
+	let mut md5hasher = Md5::new();
+	let mut sha256hasher = Sha256::new();
+	md5hasher.update(&first_block[..]);
+	sha256hasher.update(&first_block[..]);
 
 	let mut next_offset = first_block.len();
 	let mut put_curr_version_block = put_block_meta(
@@ -318,15 +302,9 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 			chunker.next(),
 		)?;
 		if let Some(block) = next_block {
-			let (_, _, block_hash) = futures::future::join3(
-				md5hasher.update(block.clone()),
-				sha256hasher.update(block.clone()),
-				async_blake2sum(block.clone()),
-			)
-			.with_context(Context::current_with_span(
-				tracer.start("Hash block (md5, sha256, blake2)"),
-			))
-			.await;
+			md5hasher.update(&block[..]);
+			sha256hasher.update(&block[..]);
+			let block_hash = blake2sum(&block[..]);
 			let block_len = block.len();
 			put_curr_version_block = put_block_meta(
 				garage,
@@ -344,9 +322,9 @@ async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
 	}
 
 	let total_size = next_offset as u64;
-	let data_md5sum = md5hasher.finalize().await;
+	let data_md5sum = md5hasher.finalize();
 
-	let data_sha256sum = sha256hasher.finalize().await;
+	let data_sha256sum = sha256hasher.finalize();
 	let data_sha256sum = Hash::try_from(&data_sha256sum[..]).unwrap();
 
 	Ok((total_size, data_md5sum, data_sha256sum))
@@ -386,7 +364,7 @@ struct StreamChunker<S: Stream<Item = Result<Bytes, Error>>> {
 	stream: S,
 	read_all: bool,
 	block_size: usize,
-	buf: BytesBuf,
+	buf: VecDeque<u8>,
 }
 
 impl<S: Stream<Item = Result<Bytes, Error>> + Unpin> StreamChunker<S> {
@@ -395,11 +373,11 @@ impl<S: Stream<Item = Result<Bytes, Error>> + Unpin> StreamChunker<S> {
 			stream,
 			read_all: false,
 			block_size,
-			buf: BytesBuf::new(),
+			buf: VecDeque::with_capacity(2 * block_size),
 		}
 	}
 
-	async fn next(&mut self) -> Result<Option<Bytes>, Error> {
+	async fn next(&mut self) -> Result<Option<Vec<u8>>, Error> {
 		while !self.read_all && self.buf.len() < self.block_size {
 			if let Some(block) = self.stream.next().await {
 				let bytes = block?;
@@ -412,8 +390,12 @@ impl<S: Stream<Item = Result<Bytes, Error>> + Unpin> StreamChunker<S> {
 
 		if self.buf.is_empty() {
 			Ok(None)
+		} else if self.buf.len() <= self.block_size {
+			let block = self.buf.drain(..).collect::<Vec<u8>>();
+			Ok(Some(block))
 		} else {
-			Ok(Some(self.buf.take_max(self.block_size)))
+			let block = self.buf.drain(..self.block_size).collect::<Vec<u8>>();
+			Ok(Some(block))
 		}
 	}
 }
@@ -522,9 +504,7 @@ pub async fn handle_put_part(
 
 	// Copy block to store
 	let version = Version::new(version_uuid, bucket_id, key, false);
-
-	let first_block_hash = async_blake2sum(first_block.clone()).await;
-
+	let first_block_hash = blake2sum(&first_block[..]);
 	let (_, data_md5sum, data_sha256sum) = read_and_put_blocks(
 		&garage,
 		&version,

src/api/s3/xml.rs

@@ -25,7 +25,7 @@ impl From<&str> for Value {
 #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub struct IntValue(#[serde(rename = "$value")] pub i64);
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct Bucket {
 	#[serde(rename = "CreationDate")]
 	pub creation_date: Value,
@@ -33,7 +33,7 @@ pub struct Bucket {
 	pub name: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct Owner {
 	#[serde(rename = "DisplayName")]
 	pub display_name: Value,
@@ -41,13 +41,13 @@ pub struct Owner {
 	pub id: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct BucketList {
 	#[serde(rename = "Bucket")]
 	pub entries: Vec<Bucket>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListAllMyBucketsResult {
 	#[serde(rename = "Buckets")]
 	pub buckets: BucketList,
@@ -55,7 +55,7 @@ pub struct ListAllMyBucketsResult {
 	pub owner: Owner,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct LocationConstraint {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -63,7 +63,7 @@ pub struct LocationConstraint {
 	pub region: String,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct Deleted {
 	#[serde(rename = "Key")]
 	pub key: Value,
@@ -73,7 +73,7 @@ pub struct Deleted {
 	pub delete_marker_version_id: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct Error {
 	#[serde(rename = "Code")]
 	pub code: Value,
@@ -85,7 +85,7 @@ pub struct Error {
 	pub region: Option<Value>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct DeleteError {
 	#[serde(rename = "Code")]
 	pub code: Value,
@@ -97,7 +97,7 @@ pub struct DeleteError {
 	pub version_id: Option<Value>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct DeleteResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -107,7 +107,7 @@ pub struct DeleteResult {
 	pub errors: Vec<DeleteError>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct InitiateMultipartUploadResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -119,7 +119,7 @@ pub struct InitiateMultipartUploadResult {
 	pub upload_id: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct CompleteMultipartUploadResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -133,7 +133,7 @@ pub struct CompleteMultipartUploadResult {
 	pub etag: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct Initiator {
 	#[serde(rename = "DisplayName")]
 	pub display_name: Value,
@@ -141,7 +141,7 @@ pub struct Initiator {
 	pub id: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListMultipartItem {
 	#[serde(rename = "Initiated")]
 	pub initiated: Value,
@@ -157,7 +157,7 @@ pub struct ListMultipartItem {
 	pub storage_class: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListMultipartUploadsResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -187,7 +187,7 @@ pub struct ListMultipartUploadsResult {
 	pub encoding_type: Option<Value>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct PartItem {
 	#[serde(rename = "ETag")]
 	pub etag: Value,
@@ -199,7 +199,7 @@ pub struct PartItem {
 	pub size: IntValue,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListPartsResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -227,7 +227,7 @@ pub struct ListPartsResult {
 	pub storage_class: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListBucketItem {
 	#[serde(rename = "Key")]
 	pub key: Value,
@@ -241,13 +241,13 @@ pub struct ListBucketItem {
 	pub storage_class: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct CommonPrefix {
 	#[serde(rename = "Prefix")]
 	pub prefix: Value,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct ListBucketResult {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -281,7 +281,7 @@ pub struct ListBucketResult {
 	pub common_prefixes: Vec<CommonPrefix>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct VersioningConfiguration {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),
@@ -289,7 +289,7 @@ pub struct VersioningConfiguration {
 	pub status: Option<Value>,
 }
 
-#[derive(Debug, Serialize, PartialEq, Eq)]
+#[derive(Debug, Serialize, PartialEq)]
 pub struct PostObject {
 	#[serde(serialize_with = "xmlns_tag")]
 	pub xmlns: (),

src/api/signature/mod.rs

@@ -1,5 +1,5 @@
 use chrono::{DateTime, Utc};
-use hmac::{Hmac, Mac};
+use hmac::{Hmac, Mac, NewMac};
 use sha2::Sha256;
 
 use garage_util::data::{sha256sum, Hash};
@@ -29,17 +29,17 @@ pub fn signing_hmac(
 	secret_key: &str,
 	region: &str,
 	service: &str,
-) -> Result<HmacSha256, crypto_common::InvalidLength> {
+) -> Result<HmacSha256, crypto_mac::InvalidKeyLength> {
 	let secret = String::from("AWS4") + secret_key;
-	let mut date_hmac = HmacSha256::new_from_slice(secret.as_bytes())?;
+	let mut date_hmac = HmacSha256::new_varkey(secret.as_bytes())?;
 	date_hmac.update(datetime.format(SHORT_DATE).to_string().as_bytes());
-	let mut region_hmac = HmacSha256::new_from_slice(&date_hmac.finalize().into_bytes())?;
+	let mut region_hmac = HmacSha256::new_varkey(&date_hmac.finalize().into_bytes())?;
 	region_hmac.update(region.as_bytes());
-	let mut service_hmac = HmacSha256::new_from_slice(&region_hmac.finalize().into_bytes())?;
+	let mut service_hmac = HmacSha256::new_varkey(&region_hmac.finalize().into_bytes())?;
 	service_hmac.update(service.as_bytes());
-	let mut signing_hmac = HmacSha256::new_from_slice(&service_hmac.finalize().into_bytes())?;
+	let mut signing_hmac = HmacSha256::new_varkey(&service_hmac.finalize().into_bytes())?;
 	signing_hmac.update(b"aws4_request");
-	let hmac = HmacSha256::new_from_slice(&signing_hmac.finalize().into_bytes())?;
+	let hmac = HmacSha256::new_varkey(&signing_hmac.finalize().into_bytes())?;
 	Ok(hmac)
 }
 

src/block/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "garage_block"
-version = "0.8.0"
+version = "0.7.0"
 authors = ["Alex Auvolat <alex@adnab.me>"]
 edition = "2018"
 license = "AGPL-3.0"
@@ -15,20 +15,17 @@ path = "lib.rs"
 
 [dependencies]
 garage_db = { version = "0.8.0", path = "../db" }
-garage_rpc = { version = "0.8.0", path = "../rpc" }
-garage_util = { version = "0.8.0", path = "../util" }
-garage_table = { version = "0.8.0", path = "../table" }
+garage_rpc = { version = "0.7.0", path = "../rpc" }
+garage_util = { version = "0.7.0", path = "../util" }
+garage_table = { version = "0.7.0", path = "../table" }
 
 opentelemetry = "0.17"
 
-arc-swap = "1.5"
 async-trait = "0.1.7"
 bytes = "1.0"
 hex = "0.4"
 tracing = "0.1.30"
 rand = "0.8"
-
-async-compression = { version = "0.3", features = ["tokio", "zstd"] }
 zstd = { version = "0.9", default-features = false }
 
 rmp-serde = "0.15"
@@ -38,7 +35,3 @@ serde_bytes = "0.11"
 futures = "0.3"
 futures-util = "0.3"
 tokio = { version = "1.0", default-features = false, features = ["rt", "rt-multi-thread", "io-util", "net", "time", "macros", "sync", "signal", "fs"] }
-tokio-util = { version = "0.6", features = ["io"] }
-
-[features]
-system-libs = [ "zstd/pkg-config" ]

src/block/block.rs

@@ -1,22 +1,16 @@
-use bytes::Bytes;
 use serde::{Deserialize, Serialize};
 use zstd::stream::{decode_all as zstd_decode, Encoder};
 
 use garage_util::data::*;
 use garage_util::error::*;
 
-#[derive(Debug, Serialize, Deserialize, Copy, Clone)]
-pub enum DataBlockHeader {
-	Plain,
-	Compressed,
-}
-
 /// A possibly compressed block of data
+#[derive(Debug, Serialize, Deserialize)]
 pub enum DataBlock {
 	/// Uncompressed data
-	Plain(Bytes),
+	Plain(#[serde(with = "serde_bytes")] Vec<u8>),
 	/// Data compressed with zstd
-	Compressed(Bytes),
+	Compressed(#[serde(with = "serde_bytes")] Vec<u8>),
 }
 
 impl DataBlock {
@@ -36,7 +30,7 @@ impl DataBlock {
 	/// Get the buffer, possibly decompressing it, and verify it's integrity.
 	/// For Plain block, data is compared to hash, for Compressed block, zstd checksumming system
 	/// is used instead.
-	pub fn verify_get(self, hash: Hash) -> Result<Bytes, Error> {
+	pub fn verify_get(self, hash: Hash) -> Result<Vec<u8>, Error> {
 		match self {
 			DataBlock::Plain(data) => {
 				if blake2sum(&data) == hash {
@@ -45,9 +39,9 @@ impl DataBlock {
 					Err(Error::CorruptData(hash))
 				}
 			}
-			DataBlock::Compressed(data) => zstd_decode(&data[..])
-				.map_err(|_| Error::CorruptData(hash))
-				.map(Bytes::from),
+			DataBlock::Compressed(data) => {
+				zstd_decode(&data[..]).map_err(|_| Error::CorruptData(hash))
+			}
 		}
 	}
 
@@ -67,31 +61,13 @@ impl DataBlock {
 		}
 	}
 
-	pub async fn from_buffer(data: Bytes, level: Option<i32>) -> DataBlock {
-		tokio::task::spawn_blocking(move || {
-			if let Some(level) = level {
-				if let Ok(data) = zstd_encode(&data[..], level) {
-					return DataBlock::Compressed(data.into());
-				}
+	pub fn from_buffer(data: Vec<u8>, level: Option<i32>) -> DataBlock {
+		if let Some(level) = level {
+			if let Ok(data) = zstd_encode(&data[..], level) {
+				return DataBlock::Compressed(data);
 			}
-			DataBlock::Plain(data)
-		})
-		.await
-		.unwrap()
-	}
-
-	pub fn into_parts(self) -> (DataBlockHeader, Bytes) {
-		match self {
-			DataBlock::Plain(data) => (DataBlockHeader::Plain, data),
-			DataBlock::Compressed(data) => (DataBlockHeader::Compressed, data),
-		}
-	}
-
-	pub fn from_parts(h: DataBlockHeader, bytes: Bytes) -> Self {
-		match h {
-			DataBlockHeader::Plain => DataBlock::Plain(bytes),
-			DataBlockHeader::Compressed => DataBlock::Compressed(bytes),
 		}
+		DataBlock::Plain(data)
 	}
 }
 

src/block/lib.rs

@@ -2,8 +2,6 @@
 extern crate tracing;
 
 pub mod manager;
-pub mod repair;
-pub mod resync;
 
 mod block;
 mod metrics;

src/block/repair.rs

@@ -1,466 +0,0 @@
-use core::ops::Bound;
-use std::path::PathBuf;
-use std::sync::Arc;
-use std::time::Duration;
-
-use async_trait::async_trait;
-use serde::{Deserialize, Serialize};
-use tokio::fs;
-use tokio::select;
-use tokio::sync::mpsc;
-use tokio::sync::watch;
-
-use garage_util::background::*;
-use garage_util::data::*;
-use garage_util::error::*;
-use garage_util::persister::Persister;
-use garage_util::time::*;
-use garage_util::tranquilizer::Tranquilizer;
-
-use crate::manager::*;
-
-// Full scrub every 30 days
-const SCRUB_INTERVAL: Duration = Duration::from_secs(3600 * 24 * 30);
-// Scrub tranquility is initially set to 4, but can be changed in the CLI
-// and the updated version is persisted over Garage restarts
-const INITIAL_SCRUB_TRANQUILITY: u32 = 4;
-
-// ---- ---- ----
-// FIRST KIND OF REPAIR: FINDING MISSING BLOCKS/USELESS BLOCKS
-// This is a one-shot repair operation that can be launched,
-// checks everything, and then exits.
-// ---- ---- ----
-
-pub struct RepairWorker {
-	manager: Arc<BlockManager>,
-	next_start: Option<Hash>,
-	block_iter: Option<BlockStoreIterator>,
-}
-
-impl RepairWorker {
-	pub fn new(manager: Arc<BlockManager>) -> Self {
-		Self {
-			manager,
-			next_start: None,
-			block_iter: None,
-		}
-	}
-}
-
-#[async_trait]
-impl Worker for RepairWorker {
-	fn name(&self) -> String {
-		"Block repair worker".into()
-	}
-
-	fn info(&self) -> Option<String> {
-		match self.block_iter.as_ref() {
-			None => {
-				let idx_bytes = self
-					.next_start
-					.as_ref()
-					.map(|x| x.as_slice())
-					.unwrap_or(&[]);
-				let idx_bytes = if idx_bytes.len() > 4 {
-					&idx_bytes[..4]
-				} else {
-					idx_bytes
-				};
-				Some(format!("Phase 1: {}", hex::encode(idx_bytes)))
-			}
-			Some(bi) => Some(format!("Phase 2: {:.2}% done", bi.progress() * 100.)),
-		}
-	}
-
-	async fn work(&mut self, _must_exit: &mut watch::Receiver<bool>) -> Result<WorkerState, Error> {
-		match self.block_iter.as_mut() {
-			None => {
-				// Phase 1: Repair blocks from RC table.
-
-				// We have to do this complicated two-step process where we first read a bunch
-				// of hashes from the RC table, and then insert them in the to-resync queue,
-				// because of SQLite. Basically, as long as we have an iterator on a DB table,
-				// we can't do anything else on the DB. The naive approach (which we had previously)
-				// of just iterating on the RC table and inserting items one to one in the resync
-				// queue can't work here, it would just provoke a deadlock in the SQLite adapter code.
-				// This is mostly because the Rust bindings for SQLite assume a worst-case scenario
-				// where SQLite is not compiled in thread-safe mode, so we have to wrap everything
-				// in a mutex (see db/sqlite_adapter.rs and discussion in PR #322).
-				// TODO: maybe do this with tokio::task::spawn_blocking ?
-				let mut batch_of_hashes = vec![];
-				let start_bound = match self.next_start.as_ref() {
-					None => Bound::Unbounded,
-					Some(x) => Bound::Excluded(x.as_slice()),
-				};
-				for entry in self
-					.manager
-					.rc
-					.rc
-					.range::<&[u8], _>((start_bound, Bound::Unbounded))?
-				{
-					let (hash, _) = entry?;
-					let hash = Hash::try_from(&hash[..]).unwrap();
-					batch_of_hashes.push(hash);
-					if batch_of_hashes.len() >= 1000 {
-						break;
-					}
-				}
-				if batch_of_hashes.is_empty() {
-					// move on to phase 2
-					self.block_iter = Some(BlockStoreIterator::new(&self.manager));
-					return Ok(WorkerState::Busy);
-				}
-
-				for hash in batch_of_hashes.into_iter() {
-					self.manager
-						.resync
-						.put_to_resync(&hash, Duration::from_secs(0))?;
-					self.next_start = Some(hash)
-				}
-
-				Ok(WorkerState::Busy)
-			}
-			Some(bi) => {
-				// Phase 2: Repair blocks actually on disk
-				// Lists all blocks on disk and adds them to the resync queue.
-				// This allows us to find blocks we are storing but don't actually need,
-				// so that we can offload them if necessary and then delete them locally.
-				if let Some(hash) = bi.next().await? {
-					self.manager
-						.resync
-						.put_to_resync(&hash, Duration::from_secs(0))?;
-					Ok(WorkerState::Busy)
-				} else {
-					Ok(WorkerState::Done)
-				}
-			}
-		}
-	}
-
-	async fn wait_for_work(&mut self, _must_exit: &watch::Receiver<bool>) -> WorkerState {
-		unreachable!()
-	}
-}
-
-// ---- ---- ----
-// SECOND KIND OF REPAIR: SCRUBBING THE DATASTORE
-// This is significantly more complex than the process above,
-// as it is a continuously-running task that triggers automatically
-// every SCRUB_INTERVAL, but can also be triggered manually
-// and whose parameter (esp. speed) can be controlled at runtime.
-// ---- ---- ----
-
-pub struct ScrubWorker {
-	manager: Arc<BlockManager>,
-	rx_cmd: mpsc::Receiver<ScrubWorkerCommand>,
-
-	work: ScrubWorkerState,
-	tranquilizer: Tranquilizer,
-
-	persister: Persister<ScrubWorkerPersisted>,
-	persisted: ScrubWorkerPersisted,
-}
-
-#[derive(Serialize, Deserialize)]
-struct ScrubWorkerPersisted {
-	tranquility: u32,
-	time_last_complete_scrub: u64,
-	corruptions_detected: u64,
-}
-
-enum ScrubWorkerState {
-	Running(BlockStoreIterator),
-	Paused(BlockStoreIterator, u64), // u64 = time when to resume scrub
-	Finished,
-}
-
-impl Default for ScrubWorkerState {
-	fn default() -> Self {
-		ScrubWorkerState::Finished
-	}
-}
-
-#[derive(Debug)]
-pub enum ScrubWorkerCommand {
-	Start,
-	Pause(Duration),
-	Resume,
-	Cancel,
-	SetTranquility(u32),
-}
-
-impl ScrubWorker {
-	pub fn new(manager: Arc<BlockManager>, rx_cmd: mpsc::Receiver<ScrubWorkerCommand>) -> Self {
-		let persister = Persister::new(&manager.system.metadata_dir, "scrub_info");
-		let persisted = match persister.load() {
-			Ok(v) => v,
-			Err(_) => ScrubWorkerPersisted {
-				time_last_complete_scrub: 0,
-				tranquility: INITIAL_SCRUB_TRANQUILITY,
-				corruptions_detected: 0,
-			},
-		};
-		Self {
-			manager,
-			rx_cmd,
-			work: ScrubWorkerState::Finished,
-			tranquilizer: Tranquilizer::new(30),
-			persister,
-			persisted,
-		}
-	}
-
-	async fn handle_cmd(&mut self, cmd: ScrubWorkerCommand) {
-		match cmd {
-			ScrubWorkerCommand::Start => {
-				self.work = match std::mem::take(&mut self.work) {
-					ScrubWorkerState::Finished => {
-						let iterator = BlockStoreIterator::new(&self.manager);
-						ScrubWorkerState::Running(iterator)
-					}
-					work => {
-						error!("Cannot start scrub worker: already running!");
-						work
-					}
-				};
-			}
-			ScrubWorkerCommand::Pause(dur) => {
-				self.work = match std::mem::take(&mut self.work) {
-					ScrubWorkerState::Running(it) | ScrubWorkerState::Paused(it, _) => {
-						ScrubWorkerState::Paused(it, now_msec() + dur.as_millis() as u64)
-					}
-					work => {
-						error!("Cannot pause scrub worker: not running!");
-						work
-					}
-				};
-			}
-			ScrubWorkerCommand::Resume => {
-				self.work = match std::mem::take(&mut self.work) {
-					ScrubWorkerState::Paused(it, _) => ScrubWorkerState::Running(it),
-					work => {
-						error!("Cannot resume scrub worker: not paused!");
-						work
-					}
-				};
-			}
-			ScrubWorkerCommand::Cancel => {
-				self.work = match std::mem::take(&mut self.work) {
-					ScrubWorkerState::Running(_) | ScrubWorkerState::Paused(_, _) => {
-						ScrubWorkerState::Finished
-					}
-					work => {
-						error!("Cannot cancel scrub worker: not running!");
-						work
-					}
-				}
-			}
-			ScrubWorkerCommand::SetTranquility(t) => {
-				self.persisted.tranquility = t;
-				if let Err(e) = self.persister.save_async(&self.persisted).await {
-					error!("Could not save new tranquilitiy value: {}", e);
-				}
-			}
-		}
-	}
-}
-
-#[async_trait]
-impl Worker for ScrubWorker {
-	fn name(&self) -> String {
-		"Block scrub worker".into()
-	}
-
-	fn info(&self) -> Option<String> {
-		let s = match &self.work {
-			ScrubWorkerState::Running(bsi) => format!(
-				"{:.2}% done (tranquility = {})",
-				bsi.progress() * 100.,
-				self.persisted.tranquility
-			),
-			ScrubWorkerState::Paused(bsi, rt) => {
-				format!(
-					"Paused, {:.2}% done, resumes at {}",
-					bsi.progress() * 100.,
-					msec_to_rfc3339(*rt)
-				)
-			}
-			ScrubWorkerState::Finished => format!(
-				"Last completed scrub: {}",
-				msec_to_rfc3339(self.persisted.time_last_complete_scrub)
-			),
-		};
-		Some(format!(
-			"{} ; corruptions detected: {}",
-			s, self.persisted.corruptions_detected
-		))
-	}
-
-	async fn work(&mut self, _must_exit: &mut watch::Receiver<bool>) -> Result<WorkerState, Error> {
-		match self.rx_cmd.try_recv() {
-			Ok(cmd) => self.handle_cmd(cmd).await,
-			Err(mpsc::error::TryRecvError::Disconnected) => return Ok(WorkerState::Done),
-			Err(mpsc::error::TryRecvError::Empty) => (),
-		};
-
-		match &mut self.work {
-			ScrubWorkerState::Running(bsi) => {
-				self.tranquilizer.reset();
-				if let Some(hash) = bsi.next().await? {
-					match self.manager.read_block(&hash).await {
-						Err(Error::CorruptData(_)) => {
-							error!("Found corrupt data block during scrub: {:?}", hash);
-							self.persisted.corruptions_detected += 1;
-							self.persister.save_async(&self.persisted).await?;
-						}
-						Err(e) => return Err(e),
-						_ => (),
-					};
-					Ok(self
-						.tranquilizer
-						.tranquilize_worker(self.persisted.tranquility))
-				} else {
-					self.persisted.time_last_complete_scrub = now_msec();
-					self.persister.save_async(&self.persisted).await?;
-					self.work = ScrubWorkerState::Finished;
-					self.tranquilizer.clear();
-					Ok(WorkerState::Idle)
-				}
-			}
-			_ => Ok(WorkerState::Idle),
-		}
-	}
-
-	async fn wait_for_work(&mut self, _must_exit: &watch::Receiver<bool>) -> WorkerState {
-		let (wait_until, command) = match &self.work {
-			ScrubWorkerState::Running(_) => return WorkerState::Busy,
-			ScrubWorkerState::Paused(_, resume_time) => (*resume_time, ScrubWorkerCommand::Resume),
-			ScrubWorkerState::Finished => (
-				self.persisted.time_last_complete_scrub + SCRUB_INTERVAL.as_millis() as u64,
-				ScrubWorkerCommand::Start,
-			),
-		};
-
-		let now = now_msec();
-		if now >= wait_until {
-			self.handle_cmd(command).await;
-			return WorkerState::Busy;
-		}
-		let delay = Duration::from_millis(wait_until - now);
-		select! {
-			_ = tokio::time::sleep(delay) => self.handle_cmd(command).await,
-			cmd = self.rx_cmd.recv() => if let Some(cmd) = cmd {
-				self.handle_cmd(cmd).await;
-			} else {
-				return WorkerState::Done;
-			}
-		}
-
-		match &self.work {
-			ScrubWorkerState::Running(_) => WorkerState::Busy,
-			_ => WorkerState::Idle,
-		}
-	}
-}
-
-// ---- ---- ----
-// UTILITY FOR ENUMERATING THE BLOCK STORE
-// ---- ---- ----
-
-struct BlockStoreIterator {
-	path: Vec<ReadingDir>,
-}
-
-enum ReadingDir {
-	Pending(PathBuf),
-	Read {
-		subpaths: Vec<fs::DirEntry>,
-		pos: usize,
-	},
-}
-
-impl BlockStoreIterator {
-	fn new(manager: &BlockManager) -> Self {
-		let root_dir = manager.data_dir.clone();
-		Self {
-			path: vec![ReadingDir::Pending(root_dir)],
-		}
-	}
-
-	/// Returns progress done, between 0 and 1
-	fn progress(&self) -> f32 {
-		if self.path.is_empty() {
-			1.0
-		} else {
-			let mut ret = 0.0;
-			let mut next_div = 1;
-			for p in self.path.iter() {
-				match p {
-					ReadingDir::Pending(_) => break,
-					ReadingDir::Read { subpaths, pos } => {
-						next_div *= subpaths.len();
-						ret += ((*pos - 1) as f32) / (next_div as f32);
-					}
-				}
-			}
-			ret
-		}
-	}
-
-	async fn next(&mut self) -> Result<Option<Hash>, Error> {
-		loop {
-			let last_path = match self.path.last_mut() {
-				None => return Ok(None),
-				Some(lp) => lp,
-			};
-
-			if let ReadingDir::Pending(path) = last_path {
-				let mut reader = fs::read_dir(&path).await?;
-				let mut subpaths = vec![];
-				while let Some(ent) = reader.next_entry().await? {
-					subpaths.push(ent);
-				}
-				*last_path = ReadingDir::Read { subpaths, pos: 0 };
-			}
-
-			let (subpaths, pos) = match *last_path {
-				ReadingDir::Read {
-					ref subpaths,
-					ref mut pos,
-				} => (subpaths, pos),
-				ReadingDir::Pending(_) => unreachable!(),
-			};
-
-			let data_dir_ent = match subpaths.get(*pos) {
-				None => {
-					self.path.pop();
-					continue;
-				}
-				Some(ent) => {
-					*pos += 1;
-					ent
-				}
-			};
-
-			let name = data_dir_ent.file_name();
-			let name = if let Ok(n) = name.into_string() {
-				n
-			} else {
-				continue;
-			};
-			let ent_type = data_dir_ent.file_type().await?;
-
-			let name = name.strip_suffix(".zst").unwrap_or(&name);
-			if name.len() == 2 && hex::decode(&name).is_ok() && ent_type.is_dir() {
-				let path = data_dir_ent.path();
-				self.path.push(ReadingDir::Pending(path));
-			} else if name.len() == 64 {
-				if let Ok(h) = hex::decode(&name) {
-					let mut hash = [0u8; 32];
-					hash.copy_from_slice(&h);
-					return Ok(Some(hash.into()));
-				}
-			}
-		}
-	}
-}