`backend`'s reconciler adopts pre-existing `galaxy-game-*` containers
without comparing their image SHA against the freshly-built
`galaxy-engine:dev`, so a long-lived sandbox would otherwise keep
serving the previous engine code after a redeploy. Issue #59 surfaced
this: after the per-command-rejection fix was deployed via
`workflow_dispatch`, the running sandbox container was still on the
old image SHA and the browser kept seeing the 503/unavailable response.
Adds a `Recycle engine containers on image drift` step right before
`Reap stray dev-deploy containers`. The step compares the new
`galaxy-engine:dev` SHA against every running `galaxy-game-*`
container and, on drift, stops the backend, removes the container,
wipes the bind-mounted per-game state directory (Engine.Init() writes
turn-0 over any pre-existing `turn-N` files — silent state corruption
otherwise), and cascade-deletes the lobby `games` row. The
`dev-sandbox` bootstrap on the next backend boot finds no live
sandbox and provisions a fresh one on the new engine image.
When the engine sources are unchanged, the BuildKit cache hits and
the SHA stays the same — the recycle step is a no-op and the running
games keep their state across the deploy. Verified end-to-end against
the live dev environment.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Ilia Denisov
e038ea6154