Files
galaxy-game/backend/internal/postgres/migrations
Ilia Denisov a9087691a3
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chore(ci): tidy CI/dev infra — drop local-ci, lift migration rule, scope by galaxy.stack label
Five connected cleanups across the dev/CI infrastructure:

1. Drop tools/local-ci/. The standalone Gitea + act_runner stack was
   the legacy "offline workflow validator"; the per-stage CI gate now
   runs on gitea.lan and the directory was only retained as a
   fallback. Removing it leaves no operational dependency: backend,
   gateway, and game code have no references; documentation that
   pointed at it (CLAUDE.md, docs/ARCHITECTURE.md, ui/docs/testing.md,
   tools/dev-deploy/README.md, tools/local-dev/README.md) is updated
   in this same change. Historical "Verified on local-ci run N"
   markers in ui/PLAN.md are preserved unchanged.

2. Lift the pre-production single-migration rule. The rule forced
   every schema delta into 00001_init.sql and required a manual
   make clean-data wipe on every backward-incompatible change in
   tools/dev-deploy/. Future schema deltas now land as additive
   sequence-numbered files (00002_*.sql, …) that goose applies
   automatically on backend startup; 00001_init.sql becomes an
   immutable baseline. Authoring conventions live in
   backend/internal/postgres/migrations/README.md. The chain may be
   squashed back into a fresh 00001 as a deliberate one-time
   operation before the first production deployment.

3. Document the deployment cadence. The dev environment is
   single-tenant: pushes to feature/* run the test workflows
   (go-unit, ui-test, integration) only; dev-deploy.yaml fires on
   push to development. A workflow_dispatch override on
   dev-deploy.yaml lets a developer preview a feature branch on the
   shared dev environment before merge; the next merge into
   development overwrites the manual deploy idempotently.

4. Scope compose-managed resources by an explicit
   galaxy.stack=<local-dev|dev-deploy> label. Both compose files
   stamp the label on every service, network, and named volume.
   Makefiles in tools/local-dev/ and tools/dev-deploy/ filter their
   engine-cleanup operations by (stack-label AND engine OCI title)
   so they never touch unrelated workloads on the same daemon.
   dev-deploy.yaml gains a pre-`compose up` step that reaps stale
   exited/dead containers under the dev-deploy stack label.

5. Backend now stamps the same galaxy.stack=<value> label on every
   engine container it spawns, sourced from a new BACKEND_STACK_LABEL
   env var (empty → label not applied; legacy-safe). Both compose
   files set it to their stack name (local-dev / dev-deploy). The
   contract is recorded in docs/ARCHITECTURE.md under
   "Container labels". A package-level test in
   backend/internal/runtime exercises both the label-present and
   label-absent paths.

No tests intentionally regressed: go test ./backend/internal/{config,
runtime,dockerclient} is green, both compose files validate cleanly,
and the backend, gateway, and game modules all build.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-18 23:32:42 +02:00
..
2026-05-06 10:14:55 +03:00

Backend migrations

Goose (pressly/goose/v3) migrations embedded into the backend binary by embed.go. Applied at startup before any listener opens — see internal/postgres.

Authoring conventions

  • Each schema change is a new file with a monotonically increasing numeric prefix and a snake-case slug: 0000N_short_description.sql. Reuse of a prefix is forbidden once the file is merged.
  • 00001_init.sql is the historical baseline. Treat it as immutable history; do not edit it to land new schema. Squashing the chain back into a fresh 00001 is reserved for the explicit pre-production cut-over.
  • Every file MUST contain both an -- +goose Up and -- +goose Down section, even if Down is a single DROP … for the same artefacts. Down migrations are exercised by the schema test and serve as the documented rollback path.
  • Destructive changes (dropping columns/tables, renaming with data loss) MUST be split into at least two migrations so the chain stays rollable forward and backward without coordinated code+schema windows:
    1. add the new shape, dual-write the data, leave the old shape in place;
    2. once all readers have switched, drop the old shape in a follow-up migration.
  • Migrations are applied automatically on backend startup, so a fresh push to development plus the dev-deploy.yaml workflow brings the long-lived dev database up to head without manual intervention. make -C tools/dev-deploy clean-data is only needed when a developer deliberately wants a fresh database.
  • The integration harness (backend/internal/postgres/migrations_test.go) spins up a disposable Postgres per run and asserts the final table set. When a migration adds or removes tables, update the expected list in the same patch.

Pre-production squash

The chain may be squashed back into one clean 00001_init.sql before the first production deployment. That is a deliberate, one-time operation; until then, additive numbered files are the rule. After the squash this file gets a short note that 00001_init.sql represents the production baseline and the policy above continues to apply for every later migration.