Automate immutable production deployments

deploy/scripts/deploy.sh

@@ -44,10 +44,14 @@ install -d -m 0755 \
   "$WATERMAPS_RUNTIME_DIR/locks" \
   "$WATERMAPS_RUNTIME_DIR/deployments"
 
-wm_acquire_route_lock ||
-  wm_die "Deployment abgebrochen, weil gerade Routingdaten aktualisiert werden."
+if ! wm_acquire_route_lock; then
+  wm_log "Deployment wird später erneut versucht, weil gerade Routingdaten aktualisiert werden."
+  exit 75
+fi
 
-active_images_file="$WM_DEPLOY_DIR/.env.images"
+active_images_file="${WATERMAPS_ACTIVE_IMAGES_FILE:-${WATERMAPS_IMAGES_ENV_FILE:-$WM_DEPLOY_DIR/.env.images}}"
+[[ "$active_images_file" == /* ]] ||
+  wm_die "WATERMAPS_ACTIVE_IMAGES_FILE muss ein absoluter Pfad sein."
 rollback_images_file=""
 resolved_images_file=""
 deployment_complete=false
@@ -65,7 +69,9 @@ wm_finish_deployment() {
   trap - EXIT HUP INT TERM
   set +e
 
-  if [[ "$status" -ne 0 && "$deployment_complete" != "true" ]]; then
+  if [[ "$status" -ne 0 &&
+        "$deployment_complete" != "true" &&
+        "${WATERMAPS_DISABLE_INTERNAL_ROLLBACK:-false}" != "true" ]]; then
     if [[ -n "$rollback_images_file" && -f "$rollback_images_file" ]]; then
       wm_log "Deployment fehlgeschlagen; vorheriges Container-Release wird wiederhergestellt."
       wm_use_images_env "$rollback_images_file"
@@ -122,6 +128,60 @@ wm_log "Persistentes PostGIS wird vor App und Datenimport gestartet."
 wm_compose up --detach --no-build postgres
 wm_wait_for_health postgres 240
 
+wm_log "Versionierte Datenbankmigrationen für Commit $revision werden angewendet."
+wm_compose exec --no-TTY postgres \
+  psql \
+    --no-psqlrc \
+    --username seacompass \
+    --dbname seacompass \
+    --set ON_ERROR_STOP=1 \
+    --command '
+      CREATE TABLE IF NOT EXISTS watermaps_schema_migrations (
+        version text PRIMARY KEY,
+        applied_at timestamptz NOT NULL DEFAULT now()
+      );
+    '
+
+shopt -s nullglob
+migration_files=("$WM_ROOT_DIR"/database/migrations/*.sql)
+shopt -u nullglob
+[[ "${#migration_files[@]}" -gt 0 ]] ||
+  wm_die "Keine Datenbankmigrationen im Release gefunden."
+
+for migration_file in "${migration_files[@]}"; do
+  migration_name="$(basename "$migration_file")"
+  [[ "$migration_name" =~ ^[0-9]{4}_[a-z0-9_]+\.sql$ ]] ||
+    wm_die "Ungültiger Migrationsdateiname: $migration_name"
+  migration_version="${migration_name%.sql}"
+  migration_applied="$(
+    wm_postgres_query "
+      SELECT EXISTS (
+        SELECT 1
+        FROM watermaps_schema_migrations
+        WHERE version = '$migration_version'
+      );
+    "
+  )"
+  migration_applied="${migration_applied//[[:space:]]/}"
+  if [[ "$migration_applied" == "t" ]]; then
+    continue
+  fi
+
+  wm_log "Wende Datenbankmigration $migration_version atomar an."
+  wm_compose exec --no-TTY postgres \
+    psql \
+      --no-psqlrc \
+      --username seacompass \
+      --dbname seacompass \
+      --set ON_ERROR_STOP=1 \
+      --single-transaction \
+      --file "/docker-entrypoint-initdb.d/migrations/$migration_name" \
+      --command "
+        INSERT INTO watermaps_schema_migrations (version)
+        VALUES ('$migration_version');
+      "
+done
+
 data_update_required=false
 update_args=()
 if [[ "${WATERMAPS_REBUILD_ROUTE_DATA:-false}" == "true" ]]; then