thermograph/deploy/forgejo/register-lan-runner.sh
Emi Griffith 7ff3873661 Realign Swarm/Forgejo infra to the 3-node design (#243)
Bring the Swarm+Forgejo layer in line with the canonical topology in
docs/runbooks/implementation-handoff.md: three nodes (prod, beta, and
the desktop LAN dev machine) instead of two, with the Forgejo Actions
runner registered on the desktop as a plain systemd service rather than
a Swarm-scheduled Docker-in-Docker sidecar.

- setup-wireguard.sh: full N-peer mesh instead of point-to-point
- docker-stack.yml: drop the runner/runner-dind services, volumes, and
  runner-token secret; only forgejo_db_password remains
- register-lan-runner.sh: register under both docker and
  thermograph-lan labels, since one runner now covers both job types
- init-swarm.sh, join-swarm.sh, swarm/README.md, forgejo/README.md,
  INFRA.md: updated node lists, order of operations, and access-state
  table for three nodes
- deploy.yml: renamed to "Deploy to beta VPS" and reconciled the
  main-vs-release branch question against terraform.tfvars.example
  (this workflow already targets beta; a release-triggered prod
  deploy doesn't exist yet and isn't invented here)
2026-07-21 01:43:19 +00:00

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#!/usr/bin/env bash
# Re-points the existing LAN dev self-hosted runner from GitHub Actions to
# Forgejo Actions. Run on the SAME machine that already runs the GitHub
# runner (see DEPLOY-DEV.md) — this replaces that runner, it doesn't add a
# second one. Sudo-free, systemd --user, same pattern as the app service.
#
# This is THE runner (docs/runbooks/implementation-handoff.md Track B step 5
# — canonical placement is the desktop, not a Swarm-hosted container), so it
# registers with BOTH labels the workflows need, where one runner used to be
# two: general CI/build/deploy.yml jobs (`docker`, containerized via this
# machine's own already-installed Docker — no Docker-in-Docker sidecar needed,
# unlike the Swarm-hosted design this replaces, since a real host with a real
# Docker install needs no such indirection) and the LAN-deploy job
# (`thermograph-lan`, bare/host-native — it writes to ~/thermograph-dev and
# restarts a systemd --user service, which only works running directly on the
# host, not inside a container).
#
# bash deploy/forgejo/register-lan-runner.sh <forgejo_url> <registration_token>
#
# Get <registration_token> from the Forgejo web UI:
# repo -> Settings -> Actions -> Runners -> Create new Runner
# (or an org/instance-level runner page, if you want it to serve more than
# this one repo — same as the GitHub runner did).
set -euo pipefail
FORGEJO_URL="${1:?usage: $0 <forgejo_url> <registration_token>}"
TOKEN="${2:?}"
RUNNER_DIR="${RUNNER_DIR:-$HOME/forgejo-runner}"
LABELS="${LABELS:-docker:docker://node:20-bookworm,thermograph-lan}"
echo "==> Stopping and disabling the old GitHub Actions runner service, if present"
systemctl --user stop github-actions-runner 2>/dev/null || true
systemctl --user disable github-actions-runner 2>/dev/null || true
if ! id -nG "$USER" 2>/dev/null | grep -qw docker; then
echo "WARNING: $USER is not in the 'docker' group — the 'docker:docker://...'"
echo "labeled jobs (general CI) will fail to start a container until this is"
echo "fixed: sudo usermod -aG docker $USER && (log out and back in)."
fi
echo "==> Installing forgejo-runner into $RUNNER_DIR"
mkdir -p "$RUNNER_DIR"
cd "$RUNNER_DIR"
if [ ! -x ./forgejo-runner ]; then
ARCH="$(uname -m)"
case "$ARCH" in
x86_64) BIN_ARCH=amd64 ;;
aarch64) BIN_ARCH=arm64 ;;
*) echo "Unsupported arch: $ARCH — download the right binary by hand from" \
"https://code.forgejo.org/forgejo/runner/releases" >&2; exit 1 ;;
esac
VER="${FORGEJO_RUNNER_VERSION:-6.3.1}"
curl -fsSL -o forgejo-runner \
"https://code.forgejo.org/forgejo/runner/releases/download/v${VER}/forgejo-runner-${VER}-linux-${BIN_ARCH}"
chmod +x forgejo-runner
fi
echo "==> Registering with $FORGEJO_URL (label: $LABELS)"
./forgejo-runner register --no-interactive \
--instance "$FORGEJO_URL" \
--token "$TOKEN" \
--name "thermograph-lan-$(hostname -s)" \
--labels "$LABELS"
echo "==> systemd --user unit"
mkdir -p "$HOME/.config/systemd/user"
cat > "$HOME/.config/systemd/user/forgejo-runner.service" <<EOF
[Unit]
Description=Forgejo Actions runner (docker + thermograph-lan)
After=network-online.target
[Service]
WorkingDirectory=${RUNNER_DIR}
ExecStart=${RUNNER_DIR}/forgejo-runner daemon
Restart=on-failure
RestartSec=5
[Install]
WantedBy=default.target
EOF
systemctl --user daemon-reload
systemctl --user enable --now forgejo-runner
loginctl enable-linger "$USER" 2>/dev/null || true
cat <<EOF
Done. The runner now serves Forgejo, not GitHub — one runner, both labels
($LABELS), replacing what used to be a separate Swarm-hosted runner for
general CI plus this machine's own GitHub runner for LAN deploys.
status: systemctl --user status forgejo-runner
logs: journalctl --user -u forgejo-runner -f
restart: systemctl --user restart forgejo-runner
The old github-actions-runner unit was stopped and disabled but not deleted —
remove ~/actions-runner by hand once you've confirmed Forgejo deploys work.
EOF