fix: verify deployed runtime version

.gitea/workflows/ci.yml

@@ -37,9 +37,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Prepare release
+        id: prepare
         shell: bash
         run: |
           set -euo pipefail
+          backend_version="$(sed -n 's/^BACKEND_VERSION = "\(.*\)"$/\1/p' app/version.py)"
+          test -n "$backend_version"
+          echo "backend_version=$backend_version" >> "$GITHUB_OUTPUT"
           tar --exclude=.git --exclude=.env -cf "$RUNNER_TEMP/$RELEASE_NAME" .
           printf '%s\n' "$PROD_SSH_KEY" > "$RUNNER_TEMP/deploy_key"
           printf '%s\n' "$PROD_KNOWN_HOSTS" > "$RUNNER_TEMP/known_hosts"
@@ -67,10 +71,13 @@ jobs:
             -o BatchMode=yes \
             -o UserKnownHostsFile="$RUNNER_TEMP/known_hosts" \
             "$PROD_USER@$PROD_HOST" \
-            "PROD_PATH='$PROD_PATH' RELEASE_NAME='$RELEASE_NAME' bash -s" <<'REMOTE'
+            "PROD_PATH='$PROD_PATH' RELEASE_NAME='$RELEASE_NAME' EXPECTED_BACKEND_VERSION='$EXPECTED_BACKEND_VERSION' bash -s" <<'REMOTE'
           set -euo pipefail
           cd "$PROD_PATH"
           release="$HOME/$RELEASE_NAME"
+          test -f "$release"
+          archive_version="$(tar -xOf "$release" ./app/version.py | sed -n 's/^BACKEND_VERSION = "\(.*\)"$/\1/p')"
+          test "$archive_version" = "$EXPECTED_BACKEND_VERSION"
           mkdir -p "$HOME/backups/miem_workers"
           backup="$HOME/backups/miem_workers/miem_workers-$(date +%Y%m%d-%H%M%S).sql"
           docker compose exec -T postgres sh -c 'pg_dump -U "$POSTGRES_USER" "$POSTGRES_DB"' > "$backup"
@@ -79,7 +86,13 @@ jobs:
             -v "$PROD_PATH":/dst \
             alpine:3.20 sh -c 'tar -xf /src/release.tar -C /dst'
           docker compose up -d --build
-          curl --fail --silent --show-error http://127.0.0.1:8000/api/health
+          runtime_version="$(docker compose exec -T api python -c 'from app.version import BACKEND_VERSION; print(BACKEND_VERSION)')"
+          test "$runtime_version" = "$EXPECTED_BACKEND_VERSION"
+          health="$(curl --fail --silent --show-error http://127.0.0.1:8000/api/health)"
+          case "$health" in
+            *"\"status\":\"ok\""*"\"backend_version\":\"$EXPECTED_BACKEND_VERSION\""*) ;;
+            *) echo "Unexpected health response: $health" >&2; exit 1 ;;
+          esac
           find "$HOME/backups/miem_workers" -maxdepth 1 -type f -name 'miem_workers-*.sql' ! -path "$backup" -delete
           docker compose ps
           rm -f "$release"
@@ -87,3 +100,4 @@ jobs:
         env:
           PROD_HOST: ${{ secrets.PROD_HOST }}
           PROD_USER: ${{ secrets.PROD_USER }}
+          EXPECTED_BACKEND_VERSION: ${{ steps.prepare.outputs.backend_version }}