pl_mail/compose.test.yaml

# The test stack — PHPUnit and the Playwright E2E suite.
#
#   npm run test:unit:docker
#   npm run test:e2e:docker
#
# Not only local: .github/workflows/e2e.yml boots this same file and runs those
# same two suites against it, which is the point. CI used to serve the app with
# `php -S` on the runner and install PHP beside it, so the two environments
# agreed about nothing except the source tree, and each had failures the other
# could not reproduce.
#
# Deliberately its OWN compose project (see `name:` below) with its OWN Postgres,
# so it can never reconcile, recreate or restart the dev stack, and can never
# reach the database holding real mail. `docker compose ...` without -f is
# untouched by this file.
#
# Served by the app's own FrankenPHP image rather than PHP's built-in server:
# variables_order is GPCS, so `php -S` never exposes APP_ENV to Symfony and the
# app silently falls back to .env.local and the dev database. A server SAPI puts
# the environment into $_SERVER, so the values below actually take effect.
name: pl_mail_test

x-test-app: &test-app
  # The dev target, not the ghcr image: prod is built with `composer install
  # --no-dev` (no PHPUnit) and ships a dump-env'd .env.local.php pinning prod.
  build:
    context: .
    target: frankenphp_dev
  # Named explicitly rather than left to compose's `<project>-<service>`
  # default, for two reasons.
  #
  # `app` and `app-init` are the same image built from the same target, so the
  # default naming had compose tagging it twice under two names. And the name
  # stopped being predictable the moment anyone passed `-p` — a worktree on its
  # own project got its own tags, which is why the one-off-container recipes in
  # the handbook could not just name an image.
  #
  # Fixed, it is also a build CI can do ahead of time: .github/workflows/e2e.yml
  # builds this tag with a layer cache and then brings the stack up without
  # `--build`, which it could not do if the tag depended on the project name.
  image: pl_mail_test-app
  volumes:
    - ./:/app
    # A dedicated var volume. Never share the dev stack's `app_var`: it is a
    # named volume overlaying the bind mount, so sharing it would let the two
    # environments write each other's caches and built assets.
    - app_var_test:/app/var
    # Same trick, same reason, for the compiled assets `asset-map:compile`
    # writes in app-init. `public/assets/` does not exist in the repo and the
    # dev stack bind-mounts this very directory, so without an overlay the
    # compiled output would land on the host and be served — stale — by the
    # dev stack on every source edit, since Caddy prefers a real file over
    # index.php. Keeping it in a volume means the test stack gets static assets
    # and development is untouched by it.
    #
    # Docker does create an *empty* `public/assets/` on the host as the mount
    # point. That is harmless and expected: the compiled files live in the
    # volume, so the dev stack finds nothing there and falls through to PHP
    # exactly as it did before. `.gitignore` already covers the directory.
    - app_public_assets_test:/app/public/assets
  environment: &test-env
    APP_ENV: test
    APP_DEBUG: "1"
    # Pinned, and passed as real environment variables rather than left to
    # .env.test: the entrypoint generates these when the environment does not
    # carry them, and a generated value would win over the dotenv one. The
    # suite wants them fixed — stable CSRF tokens, and a seed encrypted with
    # the same key every run. Same values as .env.test.
    APP_SECRET: 282065e0f71bf96c0dbcf0496c1f5d3e
    APP_ENCRYPTION_KEY: emL6R8zs0pSXCVV2HvVvbFubriWJIla7kgnqSGqCJ8E=
    # Host is `database`, unlike .env.test which targets 127.0.0.1 for CI.
    # Doctrine's when@test dbname_suffix (config/packages/doctrine.yaml) turns
    # this into `app_test` automatically.
    DATABASE_URL: postgresql://app:app@database:5432/app?serverVersion=18&charset=utf8
    MESSENGER_TRANSPORT_DSN: in-memory://
    MAILER_DSN: null://null
    APP_DEV_USER_EMAIL: e2e@plmail.test
    APP_DEV_USER_PASSWORD: e2e-password-change-me
    # Same-origin: the browser reaches the hub through the app's own Caddy
    # (`handle /.well-known/mercure*` in frankenphp/Caddyfile), so the
    # subscriber cookie is a first-party cookie and needs no CORS.
    #
    # http, not https, on purpose — Symfony derives the cookie's `secure` flag
    # from this URL's scheme, so an https value here would mint a cookie the
    # browser refuses to send back over the test stack's plain HTTP.
    MERCURE_PUBLIC_URL: http://127.0.0.1:${TEST_HTTP_PORT:-8001}/.well-known/mercure
    MERCURE_URL: http://mercure/.well-known/mercure
    # Fixed, like APP_SECRET above: the suite signs subscriber JWTs with it and
    # the hub verifies them, so both sides have to agree without depending on
    # generated secrets that differ per run.
    MERCURE_JWT_SECRET: e2e-mercure-secret-not-for-production
  depends_on:
    database:
      condition: service_healthy

services:
  database:
    image: postgres:18-alpine
    environment:
      POSTGRES_DB: app
      POSTGRES_USER: app
      POSTGRES_PASSWORD: app
    healthcheck:
      test: ["CMD", "pg_isready", "-d", "app", "-U", "app"]
      interval: 5s
      timeout: 5s
      retries: 10
    volumes:
      - database_data_test:/var/lib/postgresql

  # Owns schema, assets and the seed user, then exits. `app` waits for it.
  app-init:
    <<: *test-app
    # The image entrypoint waits on the database and runs migrations *before*
    # the database exists, so it cannot bootstrap an empty volume. Drop to the
    # upstream PHP entrypoint and do the ordering here.
    entrypoint: ["docker-php-entrypoint"]
    restart: "no"
    command:
      - sh
      - -c
      - |
        set -e
        # The entrypoint this service deliberately skips is also the thing that
        # installs PHP dependencies into the bind mount (see the long note in
        # frankenphp/docker-entrypoint.sh). Dropping to docker-php-entrypoint
        # bought correct ordering around the database and lost that, which was
        # invisible for as long as everyone running this stack already had a
        # vendor/ from the dev stack. On a tree that never had one — a fresh
        # clone, a new worktree, a CI checkout — every bin/console below died on
        # "Dependencies are missing. Try running composer install." and the
        # stack never came up at all.
        #
        # No lock around it, unlike the entrypoint's version: this service runs
        # on its own and `app` waits for it to exit, so there is no second
        # container racing for the same vendor/.
        [ -f vendor/autoload_runtime.php ] || composer install --prefer-dist --no-progress --no-interaction
        php bin/console doctrine:database:create --if-not-exists
        php bin/console doctrine:migrations:migrate --no-interaction --allow-no-migration
        php bin/console importmap:install
        # Not optional: specs assert toBeVisible()/toBeHidden(), which depend on
        # Tailwind's `.hidden { display: none }`. Building here also keeps this
        # stack independent of the dev `tailwind` watcher.
        php bin/console tailwind:build
        # Compiled, not served through PHP. Without this, `try_files {path}
        # index.php` in frankenphp/Caddyfile sends every asset request into a
        # full Symfony kernel boot: /login alone pulls 54 modulepreload entries
        # plus 2 stylesheets, measured at ~35ms each against ~1.6ms for a real
        # static file. Playwright gives every test a cold HTTP cache, so that
        # was ~1.9s of PHP spent serving JavaScript once per test — about 40%
        # of the whole e2e suite.
        php bin/console asset-map:compile
        php bin/console app:test:seed-user
        # The admin the PHPUnit controller tests look for. Seeded here rather
        # than left to the Playwright suite, which is where it used to come
        # from: PageRendersTest and friends skip themselves when the user is
        # missing, so `npm run test:unit:docker` on a fresh volume quietly ran
        # ~50 fewer tests than it appeared to until the browser suite had been
        # run at least once.
        php bin/console app:test:seed-user --admin --email=e2e-admin@plmail.test --password=e2e-admin-password

  # The real hub, so the suite can assert on live updates and on recovery after
  # the stream drops. Runs the image's DEFAULT Caddyfile, not dev.Caddyfile:
  # the default one requires a subscriber JWT, which is what production serves,
  # so the tests exercise the authorization path rather than an anonymous hub
  # that would accept anything and hide a broken cookie.
  mercure:
    image: dunglas/mercure
    environment:
      SERVER_NAME: ":80"
      MERCURE_PUBLISHER_JWT_KEY: e2e-mercure-secret-not-for-production
      MERCURE_SUBSCRIBER_JWT_KEY: e2e-mercure-secret-not-for-production
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost/healthz"]
      interval: 5s
      timeout: 5s
      retries: 10

  app:
    <<: *test-app
    environment:
      <<: *test-env
      # Plain HTTP on 80 inside the container — no TLS, no cert prompts.
      SERVER_NAME: ":80"
    ports:
      - "${TEST_HTTP_PORT:-8001}:80"
    depends_on:
      database:
        condition: service_healthy
      app-init:
        condition: service_completed_successfully
      mercure:
        condition: service_healthy

volumes:
  app_var_test:
  app_public_assets_test:
  database_data_test: