Anso d8b6f8cf3b feat(stack-files): force-text override for misidentified binary files (#1215)
* feat(stack-files): force-text override for misidentified binary files

The binary-detection heuristic (30% non-printable / NUL in the first
8 KB) sometimes flags UTF-8 files that happen to carry an embedded NUL
or a high non-printable ratio, locking the user out of inline editing
with only a Download fallback.

readStackFile now accepts an optional { forceText: true } that bypasses
isBinaryBuffer on the small-file path and returns the bytes as UTF-8
content. The route exposes this as ?force=text on GET /files/content.
The oversized branch deliberately stays untouched: returning a multi-MB
file as JSON-encoded text is wasteful regardless of the heuristic.

SpecialFilePanel grows an optional extraAction slot. The viewer's
binary branch wires Open as text anyway, which refetches with the new
flag, clears isBinary, and routes the content through the existing
Monaco editor path. A failed override surfaces both an inline error
panel and a toast so the user knows why the click did nothing.

Backend tests pin the heuristic-vs-override behaviour pair on a file
with a literal NUL byte. The frontend test asserts that the second
readStackFile call carries forceText: true and that Monaco mounts.
Troubleshooting accordion entry updated to mention the new affordance.

* fix(stack-files): guard the binary-override path against oversized files

The override on the binary panel could open Monaco against an empty
content buffer if the backend's oversized branch ran (files past the
2 MB inline-preview cap intentionally carry no content even when
force=text is set). Saving that empty buffer would wipe the file on
disk.

Two reinforcing changes:

- Initial load now checks result.oversized before result.binary, so a
  file that is both oversized and has binary bytes in the 8 KB probe
  shows the Download panel rather than the binary panel. The size
  signal stays in front of the operator and the override button never
  surfaces for a file that cannot be safely opened inline.

- The handleForceText handler now respects result.oversized on the
  refetch and transitions to the Download panel instead of clearing
  isBinary and copying result.content ?? '' into Monaco.

Same handler also gains a stale-request guard via a selectedPathRef:
a slow override for file A no longer stomps on file B's state if the
user navigated away while the request was in flight.

Two regression tests pin the new behaviour: oversized+binary surfaces
the Download panel on initial load, and an oversized refetch from the
binary panel routes to the Download panel rather than Monaco.
2026-05-25 01:38:04 -04:00
2026-03-25 00:40:06 -04:00

Sencho

Self-hosted Docker Compose management for one machine or a fleet.

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Sencho dashboard

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

Security

Operations


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

Stacks Editor
Fleet Logs

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