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feat(docker): Tailscale integration support via host socket mount

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Add the Tailscale CLI to the production image and document how to
  enable Let's Encrypt cert provisioning for virtual printers from a
  Docker-deployed Bambuddy.

  - Dockerfile installs `tailscale` from the official Debian repo. Only
    the CLI is used at runtime; tailscaled itself stays on the host.
    The binary is harmless if the socket isn't mounted — the code logs
    an actionable hint and falls back to self-signed certs.
  - docker-compose.yml adds a commented-out volume mount for
    /var/run/tailscale/tailscaled.sock with inline setup instructions.
  - tailscale.py's docker-socket hint now also fires when the binary is
    present but the daemon socket is unreachable (i.e. the new Docker
    pattern), not just when the binary is missing, so users get the
    actionable "mount the socket" message instead of opaque CLI stderr.

  Enabling the integration on a Docker host:
    1. `curl -fsSL https://tailscale.com/install.sh | sh` on host
    2. `sudo tailscale up`
    3. `sudo tailscale set --operator=<user>` for the container PUID
    4. Uncomment the tailscaled.sock mount in docker-compose.yml
    5. `docker compose up -d --force-recreate`
    6. Flip the Tailscale toggle on the VP card
This commit is contained in:
maziggy
2026-04-24 12:01:22 +02:00
parent a00ce61064
commit e927ccefb1
3 changed files with 38 additions and 3 deletions
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Dockerfile
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@@ -23,11 +23,24 @@ ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends \
curl \
ffmpeg \
gnupg \
iproute2 \
libcap2-bin \
openssh-client \
&& rm -rf /var/lib/apt/lists/*
# Install the Tailscale CLI only (no tailscaled — the daemon runs on the host).
# Bambuddy calls `tailscale status` / `tailscale cert` via the host's socket,
# which the user mounts in via docker-compose when they want to enable the
# Tailscale integration for virtual printers. Without the socket mount, the
# binary is harmless — the code logs a hint and falls back to self-signed.
RUN curl -fsSL https://pkgs.tailscale.com/stable/debian/trixie.noarmor.gpg \
-o /usr/share/keyrings/tailscale-archive-keyring.gpg \
&& curl -fsSL https://pkgs.tailscale.com/stable/debian/trixie.tailscale-keyring.list \
-o /etc/apt/sources.list.d/tailscale.list \
&& apt-get update && apt-get install -y --no-install-recommends tailscale \
&& rm -rf /var/lib/apt/lists/*
# Allow binding to privileged ports (e.g. 990/FTPS) as non-root user.
# File capabilities are more reliable than Docker cap_add with user: directive,
# which depends on ambient capability support in the container runtime.