* fix(image-updates): match any local RepoDigest against the remote tag Docker can list a stale multi-arch index digest ahead of the current one on the same image. Selecting only the first RepoDigest caused false same-tag rebuilds (for example redis:8.8.0) even when another digest equaled the registry primary. Compare every matching candidate and keep fail-closed behavior for empty, unknown-platform, and classification errors. Fixes #1684 * fix(image-updates): surface digest verification failures to operators Carry comparator errors into update-preview as check_error / verification_failed, prefer failed checks over sticky has_update in Fleet and the sidebar, and keep Update Guard from claiming no pending update when verification failed. * fix(e2e): align sidebar truncation spec with check-failed precedence StackRow now shows the check-failed icon over a stale update dot, but this spec still asserted the old precedence and failed deterministically in CI on every attempt. * fix(fleet): treat verification-only previews as non-actionable Fresh update-preview wins over sticky fleet booleans: disable Apply, exclude from ready counts, and move verification-only stacks into the check-failures advisory (including remote-labeled names). * fix(fleet): move preview actionability helpers out of the view Exporting non-components from AutoUpdateReadinessView tripped react-refresh lint in CI. Keep the helpers in a shared lib module and drop an unused mock arg. * fix(fleet): drop sticky cards when fresh preview clears the update A successful no-update preview now removes the pending Fleet card instead of leaving Apply enabled. Verification-only stacks still go to the advisory, and empty-state copy no longer claims all-clear while checks remain unresolved. * fix(image-updates): hold full-stack apply for review when another image fails verification A confirmed update or rebuild on one image previously left the whole stack fully actionable even when a different image in the same stack failed digest verification: Anatomy claimed "safe to apply", Update Guard reported ready, and Fleet's full-stack Apply stayed enabled, all while showing the verification-failure text right next to those claims. isActionableUpdatePreview now requires no verification failure anywhere in the stack; a new isReviewRequiredUpdatePreview flags the mixed state so Fleet still surfaces the card (not silently cleared) with Apply now disabled and a "Review · unverified" badge. Anatomy's banner says "review required" instead of a bump-based safety claim and withholds its Apply button. Update Guard's pending-update signal downgrades from ok to attention. Per-service apply (Fleet's per-image row) is deliberately left enabled since a service-scoped update to the confirmed image does not touch the unverified one. * fix(image-updates): treat rebuild_available symmetrically with has_update in Update Guard updatePreviewSignal only downgraded to 'attention' inside the has_update branch, so a rebuild-only stack (has_update false, rebuild_available true) with a sibling verification failure fell through to the plain verification-only 'unknown' branch and never mentioned the pending rebuild, inconsistent with isReviewRequiredUpdatePreview on the frontend which treats has_update and rebuild_available the same way. Also adds desktop-card coverage for the mixed state (previously only the mobile card was exercised) and locks in blocked/major-bump precedence over the new review-required badge/banner in both Fleet and Anatomy. * fix(image-updates): derive the mixed-verification review-hold from per-image detail, not the stack aggregate has_update and check_error are independent per image: a tag-based update can be confirmed via the registry's tag list even when that same image's own digest comparison against the current tag errored (already covered by an existing update-preview-service test). The stack-level verification_failed and has_update flags can therefore both be true for the SAME single image, which the previous review-hold treated identically to a genuinely different image failing verification: Update Guard said "another image failed digest verification" and Fleet told the user to "apply the confirmed service individually" on a single-service stack where no such affordance exists. isReviewRequiredUpdatePreview (and isActionableUpdatePreview) now walk the preview's images to require a pure failure image (check_error, no has_update of its own) alongside a genuinely different confirmed image or rebuild, falling back to the old aggregate-only judgment when per-image detail is unavailable. StackAnatomyPanel now imports the shared helper instead of hand-rolling the same predicate, so Fleet and Anatomy cannot drift apart. Backend updatePreviewSignal gets the same per-image treatment via a new optional images parameter, threaded through from UpdateGuardService. * fix(image-updates): fail closed on platform-unavailable indexes and legacy previews, allow anonymous tag listing Four independent gaps from the same QA pass, all in the digest/tag verification path this PR introduced or touches: - compareLocalToRemoteTag now distinguishes a remote index with no descriptor at all for the local platform (including an empty or fully-filtered index) from a genuine mismatch: the former returns an error instead of reporting a speculative update. A node cannot pull a platform the index does not offer. - selectLocalRepoDigests no longer falls back to a sole unrelated-repository RepoDigest when nothing matches the configured repo; comparing against a registry state that has nothing to do with the declared image risks a false update. Returns unresolved instead of guessing. - isClearedUpdatePreview no longer treats a preview with verification_failed missing entirely (not merely false) as proof the stack is clean. The current backend always includes this field, so its absence identifies an older remote node's response, which cannot vouch for a clean result the way an explicit false can. - listRegistryTags (and the underlying listRegistryTagsResult) no longer short-circuits to an empty list whenever no registry credentials are configured. getAuthToken already resolves anonymous tokens for public repositories; skipping it meant tag-based update detection silently never fired for any public image without a stored credential. * fix(image-updates): correct platform-check overreach, add cache and advisory for prior fixes Addresses code-review findings on the previous commit: - The platform-unavailable check fired too eagerly: an index whose runnable descriptors legally omit platform (OCI-permitted, routed to exactDigests) has real pullable content, so it must not be confused with a genuinely empty or fully-filtered index. Now only errors when both platform-labeled descriptors and exactDigests are empty. - listRegistryTags is now cached (15 min TTL): anonymous listing has no other rate limiting, and Fleet fans this out across every image on every reload. - A legacy preview (kept rather than cleared) now also pushes a check-failure advisory entry explaining why, instead of rendering as an unexplained pending card. - Corrected docstrings that described the old sole-unmatched-digest fallback and inverted how anonymous registry auth actually resolves. Adds coverage for: nested-index and attestation-only-filtered platform unavailability, a platform-less-but-populated index staying a match, the unrelated-repo digest rejection wired through the real preview-computation path (not just the registry-api unit), and legacy-preview interaction with an actionable has_update:true. * fix(image-updates): fail closed on mixed platform indexes, stop caching tag-list failures Addresses a second review round on the previous commit, including an empirically-verified regression: - The exactDigests fallback was unconditional: an index mixing a platform-labeled descriptor for a DIFFERENT platform with an unlabeled leaf let that leaf stand in as this platform's content, reporting a speculative update for a genuinely incompatible platform. Now an unlabeled leaf is only trusted when it is the ONLY kind of descriptor in the index (nothing else claims a different platform); a mixed index errors instead. - listRegistryTags was caching failed lookups for the full 15-minute TTL (a 429, an unreachable registry, or credentials not yet configured all looked identical to a real empty tag list). The fetcher now throws on failure so only a success is ever cached; CacheService's existing stale-on-error fallback still serves the last good list when one exists. - The manual "Recheck" action now also drops the tag-list cache, so a newly published tag is visible immediately instead of waiting out the TTL. - The legacy-preview advisory no longer fires when the same preview is already actionable on its own terms (a remote's own confirmed has_update/rebuild_available): pairing a "could not be checked" banner with an enabled Apply button next to it contradicted itself. - Corrected docstrings and a self-contradictory inline comment left over from the prior fix. New coverage: the exact mixed-index regression this round found and fixed, cache hit/no-repeat-fetch and failure-not-cached behavior, and the legacy-preview-plus-already-actionable non-contradiction. * fix(image-updates): add digest_error unmasked field, reorder RiskBadge, fix actionability gates Add digest_error to UpdatePreviewImage as an always-populated field that is independent of check_status masking: a confirmed tag-based update on the same image resolves check_status to 'ok' and nulls check_error, but digest_error stays set since the image's current tag content was never verified. Switch hasUnverifiedOtherImage to read digest_error. Reorder RiskBadge precedence so reviewRequired is checked before uncertain (both derive from check_error, so uncertain was unreachable). Fix self-contradiction in test fixtures (digest_update:true + check_error). Add masked-tag regression test with two-image fixture. Simplify hasUnverifiedOtherImage per code review feedback.
Self-hosted Docker Compose management for one machine or a fleet.
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Note
Sencho is used in production for day-to-day Docker Compose and fleet management. As a pre-1.0 project it still evolves quickly, so review the known limitations and validate against your own setup before deploying it on critical infrastructure.
What Sencho is
Sencho is a Docker Compose control plane for DevOps engineers, platform teams, system administrators and homelab users who run services on Compose and need a real operational surface: a graphical interface that does not give up file-on-disk workflows, and the ability to manage more than one machine without SSH gymnastics or a VPN.
It runs as a single container on your hardware and provides a UI for common Compose operations: 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.
Multi-node was part of the architecture from the start, not bolted on later: every Sencho instance is the same autonomous node, whether it runs alone or as one of many in a fleet. 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 an authenticated HTTP and WebSocket proxy across your fleet. Use TLS, a VPN, or a private network for any untrusted link. Each node still uses its local Docker socket (see Quick start), but Sencho does not require SSH and does not expose a remote Docker socket on the network. 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.
Sencho is free, open-source software under AGPLv3. Everything below is included in the Community tier with unlimited nodes and users.
Capabilities
Stacks
- Full Compose lifecycle: create, deploy, restart, stop, take down, pull
- Atomic deployments with automatic rollback on failure
- Monaco editor with diff preview before save and one-click rollback to any prior deploy
- Health-gated updates that hold a rollout until health checks pass, with stalled-update detection and in-app recovery
- Git-sourced stacks pulled and synced from any repository, with ordered multi-file Compose
- File explorer for compose, env, and supporting files, with move and rename across directories
- Drift detection that compares running containers against the effective Compose model and flags exactly what changed
- Environment and secrets guardrails that inventory every variable a stack uses and flag missing or duplicate values, without ever exposing a value
- Storage portability checks that show whether a stack's mounts can move cleanly to another node before you move it
- Compose Doctor preflight checks that catch compose problems before deploy
- Stack labels for grouping and bulk operations
- App Store with LinuxServer.io templates by default, or any custom Portainer-compatible registry
Observability
- Aggregated log search and stream across every container in the fleet
- Live container stats, health checks, and image-update notifications on a configurable cadence, with links from each image to its registry and source
- Threshold alerts for CPU, memory, and network
- Read-only audit log of every action, with a 14-day recent-activity window
- Network topology view of containers, networks, and nodes
- Documentation-drift flags when a stack dossier diverges from the running stack
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
- Fleet Federation: cordon nodes and pin Blueprints to specific hosts
- Fleet Actions: bulk label operations, fleet-wide stop-by-label, and fleet-wide prune
- Fleet Dossier: export the whole fleet as a single browsable Markdown archive
- Docker Label Audit across every node, for labels that drive external automation
- Remote updates: pull the latest image and recreate any node in the fleet from the Fleet view, no SSH session required
- Node labels and grouping
- 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
- Webhooks on stack lifecycle events
- Blueprints: declarative fleet templates with drift detection
Security
- SSO: custom OIDC and presets for Google, GitHub, and Okta
- Two-factor authentication with TOTP and backup codes
- RBAC with admin (full control) and viewer (read-only) roles
- Security overview with a chart-led scan summary, sortable images, and searchable scan history
- Vulnerability scanning via Trivy, with on-demand node-wide scans, VEX-based suppression, SARIF export, and SBOM upload
- Compose network inspector with an exposure-intent guard for unintended published ports
- Node-wide network inventory, topology, and exposure findings across every stack on a node
- Scan policies that set severity thresholds and can block a deploy
- Private registries for Docker Hub, GHCR, and custom registries, plus deploy enforcement for non-compliant images
- API tokens for automation
Operations
- Off-site stack archives via custom S3-compatible storage
- Notification routing to Slack, Discord, and any generic webhook
- Global search across pages, nodes, and every stack in the fleet
- Resources view for images, volumes, and networks with scoped prune actions
Before you install
Sencho talks to Docker through the host's /var/run/docker.sock. Mounting this socket grants Sencho the same privilege as sudo docker on the host. This is the same model used by Portainer, Dockge, Komodo, and other Compose dashboards. If your threat model requires stricter isolation, see running with a non-root container user and front Sencho with a reverse proxy that enforces authentication.
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 \
# 1:1 Compose Path Rule: the host path MUST match the container path
-v /opt/docker:/opt/docker \
-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 HTTP and WebSocket requests to the remote instance. The remote node does not run SSH for Sencho, does not expose its Docker socket on the network, and does not run a separate agent process. The local Sencho on each node manages its own Docker through the standard socket mount described in Quick start. 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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Telemetry and data handling
Sencho does not emit telemetry, analytics, or crash reports, and makes no outbound calls to Sencho-controlled endpoints. Stack metadata, container inventory, and user activity never leave your instance.
Admiral
Admiral is Studio Saelix's paid business assurance plan on top of everything in Community: Hardened Build, Recovery Vault (managed off-site snapshots), priority support, and governance depth (advanced RBAC roles, LDAP / Active Directory, full audit log export and anomaly detection). Fleet Sync policy replication and AWS ECR registry credentials currently require Admiral as well; those access rules are temporary availability, not the reason Admiral exists. See sencho.io/pricing for current plan details.
Documentation, community, and license
- Documentation: docs.sencho.io
- Blog: sencho.io/blog
- Known limitations: KNOWN_LIMITATIONS.md
- If something breaks: the Recovery guide covers getting back to a working state when Sencho, a deploy, sign-in, Docker, or a node fails.
- Community: GitHub Discussions
- Contributing: CONTRIBUTING.md
- Security: SECURITY.md. Do not open public issues for security vulnerabilities.
- License: GNU Affero General Public License v3.0 (
AGPL-3.0-only). Copyright (c) 2026 Studio Saelix. Sencho is free software; see LICENSE and Licensing for terms. Studio Saelix trademarks are described in TRADEMARKS.md.







