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sencho/.env.example
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Anso c613010199 feat: account for VM memory ballooning in host memory reporting (#1750)
* feat: account for VM memory ballooning in host memory reporting

Extend hostMemory.ts with a readBalloonedMemory() function that parses the
Balloon: field from /proc/meminfo, following the same fail-open pattern as
the ZFS ARC integration. When a nonzero balloon is detected, effective
memory fields (effectiveUsed, effectiveFree, effectiveUsagePercent) are
computed and exposed through /api/system/stats and /api/fleet/overview.

All consumers that derive meaning from host memory now prefer effective
values when present: the dashboard gauge, Fleet card RAM bar, mobile
views, health verdict, health status bar stat tile, and host RAM alerts.

Backward compatible: missing /proc/meminfo or absent Balloon: line
preserves exact current behavior. Old remote nodes without the new fields
continue rendering normally.

* refactor: extract shared helpers for balloon memory wiring

Extract readCandidateFile() and logSelectedPath() in hostMemory.ts to
deduplicate ARC and balloon file-read logic. Add memoryToWire() to
centralize the optional-field spread used by /api/system/stats and
/api/fleet/overview. Add getNodeMemUsed()/getNodeMemTotal() helpers
in nodeUtils.ts for frontend byte-text consumers.

* fix: make desktop fleet masthead aggregate balloon-aware

The desktop fleet overview's memory aggregate in useFleetOverview.ts still
summed raw memory.used, while the mobile fleet aggregate and per-node cards
already used effective values. Update to use getNodeMemUsed/getNodeMemTotal
helpers.

* fix: revert balloon adjustment from alerting and health decisions

Ballooned memory is host-reclaimed (unlike ZFS ARC, which the guest can
reclaim on demand). The guest cannot get ballooned pages back until the
hypervisor deflates them, so treating ballooned memory as available for
alerting or health can mask real memory pressure.

Keep balloon parsing, wire fields, and the dashboard context line as
informational-only. The memory gauge, health verdict, and host RAM alerts
now use the standard ARC-adjusted working-set percentage regardless of
balloon. Updated configuration.mdx and dashboard.mdx to document that
balloon data is informational and does not influence alerting.
2026-08-02 20:48:38 -04:00

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# Sencho Configuration
# Copy this file to .env and update the values for production
# Directory containing docker-compose files
COMPOSE_DIR=/path/to/your/compose/files
# Database and state directory inside the container (default: /app/data)
DATA_DIR=/app/data
# Optional path to a host-installed Trivy binary. Sencho first looks for a
# managed install under DATA_DIR/bin/trivy; if absent and TRIVY_BIN is set,
# Sencho uses that path; otherwise it falls back to `trivy` on PATH. Once a
# managed install is present, the managed copy takes precedence over this.
TRIVY_BIN=
# Node environment (set automatically in Docker image; only change for local dev)
NODE_ENV=production
# Frontend URL for CORS in production (leave empty for same-origin setups)
FRONTEND_URL=
# Base URL for the Hardened Build assurance API
SENCHO_ASSURANCE_API=https://sencho.io
# Non-production/test-only entitlement stub (1, entitled, unauthorized, unavailable).
# Ignored when NODE_ENV=production.
SENCHO_ASSURANCE_ENTITLEMENT_STUB=
# Global API rate limit (requests per minute per user session, production only)
# Authenticated requests are keyed by user ID; unauthenticated by IP.
# Internal node-to-node traffic (node_proxy tokens) bypasses this limit entirely.
API_RATE_LIMIT=200
# Polling endpoint rate limit (requests per minute, production only)
# Applies to dashboard/status polling endpoints that are exempt from the global limit.
# Increase for environments with many concurrent browser sessions behind shared NAT.
API_POLLING_RATE_LIMIT=300
# Public URL of THIS primary instance, used to bake an externally-reachable
# SENCHO_PRIMARY_URL into pilot enrollment YAML. Set this when the primary
# sits behind a reverse proxy or Cloudflare Tunnel so pilots on a different
# network can dial the public hostname instead of the request Host header
# the admin happens to be on (loopback, LAN, etc.). Must be http(s)://; no
# trailing slash. When unset, enrollment falls back to the request Host.
SENCHO_PUBLIC_URL=
# ─── Pilot agent (remote host only) ──────────────────────────────
# These three vars are required ONLY on a remote host running as a
# pilot-agent reverse-tunnel container. The primary instance does not
# read them. See docs/features/pilot-agent.mdx for the full setup.
# Switches the container into agent mode. The primary instance leaves
# this unset.
SENCHO_MODE=
# WebSocket-capable URL of the controlling Sencho instance. Use https://
# scheme; the agent rewrites it to wss:// for the tunnel upgrade.
SENCHO_PRIMARY_URL=
# Single-use, 15-minute enrollment token issued by the primary when the
# pilot-agent node is created. After the first successful connect the
# agent persists a long-lived tunnel credential at /app/data/pilot.jwt
# and ignores this var on subsequent restarts.
SENCHO_ENROLL_TOKEN=
# Optional: path inside the agent container to a PEM CA bundle the
# agent should trust when validating the primary's TLS cert. Use this
# for self-hosted deployments terminating TLS with an internal CA.
# Leave unset to fall back to the system trust store. There is no
# escape hatch to disable TLS verification.
SENCHO_PILOT_CA_FILE=
# ─── SSO / LDAP Configuration ────────────────────────────────────
# LDAP / Active Directory
SSO_LDAP_ENABLED=false
SSO_LDAP_URL=ldap://ldap.example.com:389
SSO_LDAP_BIND_DN=cn=readonly,dc=example,dc=com
SSO_LDAP_BIND_PASSWORD=
SSO_LDAP_SEARCH_BASE=ou=users,dc=example,dc=com
SSO_LDAP_SEARCH_FILTER=(uid={{username}})
SSO_LDAP_ADMIN_GROUP_DN=
SSO_LDAP_DEFAULT_ROLE=viewer
SSO_LDAP_DISPLAY_NAME=LDAP
SSO_LDAP_TLS_REJECT_UNAUTHORIZED=true
# Google OIDC
SSO_OIDC_GOOGLE_ENABLED=false
SSO_OIDC_GOOGLE_CLIENT_ID=
SSO_OIDC_GOOGLE_CLIENT_SECRET=
# GitHub OAuth
SSO_OIDC_GITHUB_ENABLED=false
SSO_OIDC_GITHUB_CLIENT_ID=
SSO_OIDC_GITHUB_CLIENT_SECRET=
# Okta OIDC
SSO_OIDC_OKTA_ENABLED=false
SSO_OIDC_OKTA_ISSUER_URL=
SSO_OIDC_OKTA_CLIENT_ID=
SSO_OIDC_OKTA_CLIENT_SECRET=
# Custom OIDC (Keycloak, Authentik, Authelia, Zitadel, etc.)
SSO_OIDC_CUSTOM_ENABLED=false
SSO_OIDC_CUSTOM_DISPLAY_NAME=Custom OIDC
SSO_OIDC_CUSTOM_ISSUER_URL=
SSO_OIDC_CUSTOM_CLIENT_ID=
SSO_OIDC_CUSTOM_CLIENT_SECRET=
SSO_OIDC_CUSTOM_SCOPES=openid email profile
SSO_OIDC_CUSTOM_ID_CLAIM=
SSO_OIDC_CUSTOM_USERNAME_CLAIM=
SSO_OIDC_CUSTOM_EMAIL_CLAIM=
# Role mapping (shared across OIDC providers)
SSO_OIDC_ADMIN_CLAIM=groups
SSO_OIDC_ADMIN_CLAIM_VALUE=sencho-admins
SSO_DEFAULT_ROLE=viewer
# External base URL for OAuth callback URLs (required behind reverse proxy)
SSO_CALLBACK_URL=
# Idle teardown for the persistent mesh proxy tunnel central opens to
# Distributed API (proxy-mode) remotes. The tunnel stays open for the
# life of the WebSocket. Set a positive number of milliseconds to
# enable idle teardown after that many ms of zero active mesh streams;
# the next mesh dial re-opens it. Default 0 (persistent).
SENCHO_MESH_PROXY_TUNNEL_IDLE_MS=0
# Mesh network subnet for this node. Leave unset to let Sencho pick the first
# free /24 from its candidate list (172.30.0.0/24, 172.31.0.0/24, 10.42.0.0/24,
# 10.43.0.0/24), or adopt the existing sencho_mesh network's subnet when it is
# already present. Set a specific CIDR only when you need to avoid an overlap
# with another network on this host. Configured independently per node.
# SENCHO_MESH_SUBNET=10.42.0.0/24
# Maximum bytes a single Git Source clone may download from the Git host before
# it is aborted. This bounds network transfer and abuse, not the decompressed
# on-disk size. A shallow clone of a compose repo is tiny; raise this only if
# you track compose files in a legitimately large repository. Default
# 104857600 (100 MB).
GITSOURCE_MAX_CLONE_BYTES=104857600
# Idle-output backstop for deploy and update compose steps (pull/recreate). If a
# step produces no output for this long while still running, Sencho treats it as
# stalled and stops it, so a hung image pull surfaces a clear failure (and the
# in-app recovery actions) instead of spinning. Conservative by default because a
# working pull can be briefly silent while a large layer extracts; raise it on
# slow links or heavy local builds. Default 600000 (10 minutes).
# SENCHO_COMPOSE_STALL_TIMEOUT_MS=600000
# Container-side path to the OpenZFS ARC stats file, for ZFS-aware host memory.
# On ZFS hosts (TrueNAS SCALE, Proxmox, ZFS on Ubuntu/Debian) the ARC cache is
# reclaimable but the kernel reports it as used, which can trigger false
# host-memory alerts. When ARC stats are readable, Sencho adds reclaimable ARC
# back into available memory. Sencho checks this path first, then
# /host/proc/spl/kstat/zfs/arcstats, then /proc/spl/kstat/zfs/arcstats. Set this
# only if your ARC stats live at a non-standard path inside the container. If no
# ARC stats are readable, host memory reporting is unchanged.
# SENCHO_ZFS_ARCSTATS_PATH=
# Path inside the container to /proc/meminfo, for VM memory ballooning awareness.
# Sencho checks this path first, then /host/proc/meminfo, then /proc/meminfo.
# Set it only when your meminfo lives at a non-standard path inside the container.
# SENCHO_PROC_MEMINFO_PATH=