Anso
8f13a7faf3
* fix(pilot): stop silently swallowing fs errors in agent token helpers
The pilot-agent audit found that both filesystem-touching helpers in
the agent process discarded every fs error class:
- readPersistedToken caught all errors and returned null. ENOENT
(normal first boot) and EACCES / EIO / EROFS (a real disk or
volume-permission failure) were indistinguishable; the latter
silently fell back to "no persisted token", and on a node where
the enrollment token had already been consumed the agent would
enter a re-enrollment loop with no log signal pointing at the disk.
- persistToken caught all errors and logged at console.warn. The
operator saw the next-boot loop with the same diagnostic gap.
Replace both with errno-aware handling:
- readPersistedToken calls fs.readFileSync directly (no TOCTOU race
against existsSync), treats ENOENT as silent, and logs every other
errno at ERROR with the path.
- persistToken logs at ERROR (not WARN) with the failing errno and an
explicit "next agent restart will require re-enrollment until the
volume is writable" message. The agent still continues with the
in-memory token so the current session is unaffected.
Both helpers are now exported (marked @internal) so the new test file
can mock fs and assert the error-class-vs-log-level matrix.
12 unit cases in pilot-agent-fs-errors.test.ts cover ENOENT,
EACCES, EIO, EROFS, ENOSPC, missing errno, empty file, and the
happy path. Mock pattern follows backend/src/__tests__/filesystem.test.ts.
* fix(pilot): address code-review on the fs-error branch
Three findings from the review pass:
- Em dash in a test description (Directive 18). Rewritten as
"does not throw, so the in-memory token stays usable for the
current session".
- persistToken still had an existsSync + mkdirSync pair around
the token-write. mkdirSync({ recursive: true }) is idempotent on
existing directories, so the existsSync was redundant and added
a TOCTOU window where the directory could be removed between the
probe and the write. Dropped the existsSync; the test that
previously primed mockExistsSync now asserts mockExistsSync is
NOT called, locking the TOCTOU removal.
- The two new exports used the @internal JSDoc tag, but this
repo's existing pattern for "public-by-convention-for-tests"
helpers (e.g. RegistryService.ts:481) is plain prose
"Exposed for unit tests." Switched to that style.
No behavior change beyond the TOCTOU removal.
Self-hosted Docker Compose management for one machine or a fleet.
Docs · Website · Discussions · Sponsor
What Sencho is
Sencho is for homelab operators, small DevOps teams, and platform engineers who run services on Docker Compose, want a graphical interface without giving up file-on-disk workflows, and need to manage more than one machine without SSH gymnastics or a VPN.
It runs as a single container on your hardware and gives you a UI for the work you currently do over SSH on compose stacks: deploying, editing files, watching logs, restarting containers, browsing volumes, and recovering from failures. Your compose files stay on the host filesystem and remain the source of truth.
A Sencho instance is autonomous. To manage another machine, you install a second Sencho on it and connect them with a long-lived API token; the primary dashboard then acts as a transparent HTTPS proxy across your fleet. There is no SSH and no exposed Docker socket. For nodes behind NAT or strict firewalls, the Pilot Agent establishes a single outbound WebSocket tunnel to the primary, so the remote host opens no inbound port at all.
Most capabilities are free in the Community tier. A few advanced automation and fleet-control features ship in paid tiers; pricing lives at sencho.io/pricing.
Capabilities
Stacks
- Full Compose lifecycle: create, deploy, restart, stop, pull
- Monaco editor with diff preview before save and one-click rollback
- Git-sourced stacks pulled and synced from any repository
- File explorer for compose, env, and supporting files
- Stack labels for grouping and bulk operations
- App Store with LinuxServer.io templates
Observability
- Aggregated log search and stream across every container in the fleet
- Live container stats, health checks, and image-update notifications
- Threshold alerts for CPU, memory, and network
- Read-only audit log of every action
- Network topology view of containers, networks, and nodes
Fleet
- Multi-node management via authenticated HTTP and WebSocket proxy
- Fleet view with grid and topology layouts
- Fleet snapshots of compose and env across the fleet
- Pilot Agent for nodes behind NAT or strict firewalls
- Node compatibility checks before deploying
Automation
- Auto-heal policies for failed containers
- Auto-update policies for image rollouts
- Scheduled operations on cron
- Blueprints: declarative fleet templates with drift detection
- Webhooks on stack lifecycle events
- Encrypted Fleet Secrets pushed to labeled nodes
Security
- SSO: custom OIDC, presets for Google, GitHub, and Okta, plus LDAP and Active Directory
- Two-factor authentication with TOTP and backup codes
- RBAC with admin, editor, and viewer roles
- Vulnerability scanning via Trivy with VEX-based suppression and SARIF export
- Private registries and deploy enforcement for non-compliant images
- API tokens for automation
Operations
- Host console in the browser
- Sencho Cloud Backup for off-site stack archives
- Notification routing to Slack, Discord, email, and webhooks
- Global search across stacks, containers, and services
- Resources view for images, volumes, and networks with scoped prune actions
Quick start
Sencho runs in a single container.
services:
sencho:
image: saelix/sencho:latest
container_name: sencho
restart: unless-stopped
ports:
- "1852:1852"
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- ./data:/app/data
# 1:1 Compose Path Rule: the host path MUST match the container path
- /opt/docker:/opt/docker
environment:
- COMPOSE_DIR=/opt/docker
- DATA_DIR=/app/data
docker compose up -d
Open http://your-server:1852 and create your admin account.
Always front Sencho with a TLS-terminating reverse proxy in production. See the self-hosting guide for hardening, environment variables, and reverse-proxy examples.
Run with docker run instead
docker run -d --name sencho \
-p 1852:1852 \
-v /var/run/docker.sock:/var/run/docker.sock \
-v sencho_data:/app/data \
-e COMPOSE_DIR=/opt/docker \
saelix/sencho:latest
For the full walkthrough, see the quickstart guide.
Adding remote nodes
To manage a second machine, install Sencho on it the same way, then add it from the primary dashboard with its URL and a long-lived API token. The primary proxies authenticated HTTPS and WebSocket requests to the remote instance. No SSH, no exposed Docker socket, no agent process on the remote. Nodes behind NAT or strict firewalls can opt into the Pilot Agent for outbound-only connectivity.
See the multi-node guide for the full token-bearer flow.
Screenshots
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Documentation, community, and license
- Documentation: docs.sencho.io
- Community: GitHub Discussions
- Contributing: CONTRIBUTING.md
- Security: SECURITY.md. Do not open public issues for security vulnerabilities.
- License: Business Source License 1.1. Free for production use; the only restriction is offering Sencho as a competing hosted or managed service. Converts to Apache 2.0 on 2030-03-25.