name: Restart Workflows Machines

# Periodic rolling restart to cap the native libsql embedded-replica memory growth
# (see apps/workflows/research.md). Restarts machines one at a time so the app stays up.
on:
  schedule:
    - cron: "0 12 * * *"
  workflow_dispatch: {}

concurrency:
  group: restart-workflows
  cancel-in-progress: false

jobs:
  restart:
    name: Rolling restart
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: superfly/flyctl-actions/setup-flyctl@master
      - name: Restart machines one at a time
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
          FLY_APP: openstatus-workflows
        run: |
          set -euo pipefail
          ids=$(flyctl machines list -a "$FLY_APP" --json | jq -r '.[].id')
          for id in $ids; do
            echo "Restarting machine $id"
            flyctl machine restart "$id" -a "$FLY_APP"
            # Let the machine pass its health check before touching the next one.
            sleep 45
          done