Anso d8e8d500c9 docs(fleet-sync): refresh hardening, anchor, retry, demote behaviors (#974)
The fleet-sync.mdx page reflected an earlier shape of the feature.
Refreshed to cover everything the receiver and sender now do:
- Both scan policies AND CVE suppressions replicate over the same
  channel today (was previously framed as "future" for suppressions).
- Control anchor: replicas bind to the first control fingerprint and
  reject pushes from a different control until an admin reanchors.
  Documented the reanchor curl call.
- Push ordering: monotonic pushedAt rejects strictly-older pushes
  with 409 STALE_SYNC_PUSH; legacy controls without timestamps still
  accepted for back-compat.
- Automatic retry: the control retries failed pushes every 5 minutes
  for 24h and emits one warning notification per hour-long failure
  window for previously-working remotes.
- Demote to control: documented the admin-only button and what it
  wipes. Replaced the "remove the node from the control" workaround
  with the proper flow.
- Pilot-agent nodes: explicitly documented as out of fleet-sync scope.
- Tiebreaker: documented lowest-id wins for ties.
- Replica policy filtering: identity-scoped policies for other
  replicas no longer surface in this replica's UI.
- Troubleshooting expanded with 409 codes (STALE_SYNC_PUSH,
  CONTROL_IDENTITY_MISMATCH).

Cross-link added from vulnerability-scanning.mdx (Scan policies
section) so anyone reading about policies finds the replication
docs.
2026-05-07 13:56:14 -04:00
2026-03-25 00:40:06 -04:00

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Sencho

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Self-hosted Docker Compose management with self-healing infrastructure, atomic deployments, and multi-network fleet control. Built for engineers who want Kubernetes-grade reliability without the complexity.

Sencho Dashboard


Why Sencho?

Works across every network

Pilot Agent tunnels through NAT and firewalls so every node in your fleet is reachable from the dashboard, regardless of network topology. No port-forwarding. No VPN. No SSH.

Containers crash. Sencho fixes them.

Auto-heal policies watch your stacks and take action (restart, redeploy, notify) before you even open your laptop. Define the rules once; the recovery runs itself.

Deploy safely without Kubernetes

Atomic deployments mean a failed stack never leaves you in a broken half-up state. Rollback is one click. Deploy enforcement policies block non-compliant images before they ever run.

Define behavior, not procedures

Auto-update policies, scheduled operations, webhooks, and deploy enforcement let you codify how your infrastructure behaves. The UI is for oversight; the engine runs the work.


Features

Stack Management

  • Monaco editor with syntax highlighting and multi-file support
  • Atomic deployments with live progress tracking and one-click rollback
  • Git-sourced stacks: pull and sync from any repository
  • Stack file explorer and label management

Monitoring & Observability

  • Live log streaming with search and filtering across all containers
  • CPU, RAM, and disk threshold alerts with configurable actions
  • Container stats, health checks, and image update notifications
  • Global observability view across all nodes in your fleet

Fleet Management

  • Multi-node via authenticated HTTP/WebSocket proxy (no SSH, no remote socket)
  • Fleet view and sync for coordinated updates across nodes
  • Pilot Agent for NAT traversal and firewall-crossing connections
  • Node compatibility checks before deploying

Automation

  • Auto-heal policies: detect and recover from container failures automatically
  • Auto-update policies: roll out new image versions on your terms
  • Scheduled operations with cron expressions
  • Webhooks and deploy enforcement rules

Security

  • SSO: custom OIDC (any spec-compliant provider), Google/GitHub/Okta presets, LDAP/Active Directory
  • Two-factor authentication and RBAC with deployer, node-admin, and auditor roles
  • Audit log, vulnerability scanning with VEX suppression, and private registry support
  • Deploy enforcement to block non-compliant images

Operations

  • App Store with one-click LinuxServer.io template deployments
  • Sencho Cloud Backup for off-site stack archives
  • Notification routing to Slack, Discord, email, and webhooks
  • Global search across stacks and containers

Architecture

Sencho's architecture combines a Distributed API model with an optional Pilot Agent for complex networks.

  • Distributed API: Remote nodes are managed by proxying authenticated HTTP/WebSocket requests to autonomous Sencho instances running on each server. No SSH. No remote Docker socket exposure. No polling agent. Each node speaks the same Sencho API, so the dashboard is just another client.
  • Pilot Agent: For nodes behind NAT or strict firewalls, the Pilot Agent establishes secure outbound tunnels to the primary dashboard instance. This guarantees full fleet visibility and management without requiring port-forwarding, VPNs, or inbound network access.

Quick Start

Docker run (quickest):

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

Docker Compose (recommended for production):

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

Then open http://your-server:1852 and create your admin account.

See the full documentation for configuration details, multi-node setup, and more.


Documentation


Development

# Backend (Express + TypeScript)
cd backend && npm install && npm run dev

# Frontend (React + Vite)
cd frontend && npm install && npm run dev

The frontend dev server proxies /api requests to the backend on port 1852.

Contributing

See CONTRIBUTING.md for development setup and PR guidelines.

Security

See SECURITY.md for vulnerability reporting. Do not open public issues for security vulnerabilities.

License

Sencho is licensed under the Business Source License 1.1. Production use is allowed; the only restriction is offering Sencho as a competing hosted or managed service. On 2030-03-25, the license automatically converts to Apache 2.0.

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Self-hosted Docker Compose management platform. Great for homelabs, small DevOps teams, and platform engineers.
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