refractor code,

scripts/docker-prod-common.sh

@@ -8,6 +8,7 @@ TRAEFIK_COMPOSE_FILE="${ROOT_DIR}/traefik.yaml"
 ENV_FILE="${ROOT_DIR}/.env.docker.production"
 PROJECT_NAME="${DOCKER_PROD_PROJECT_NAME:-rentaldrivego-prod}"
 TRAEFIK_NETWORK="${DOCKER_PROD_TRAEFIK_NETWORK:-traefik-proxy}"
+VOLUME_BACKUP_IMAGE="${DOCKER_VOLUME_BACKUP_IMAGE:-postgres:16-alpine}"
 
 ensure_env_file() {
   if [[ ! -f "${ENV_FILE}" ]]; then
@@ -29,7 +30,7 @@ prod_compose() {
 }
 
 traefik_compose() {
-  docker compose -f "${TRAEFIK_COMPOSE_FILE}" "$@"
+  docker compose --env-file "${ENV_FILE}" -f "${TRAEFIK_COMPOSE_FILE}" "$@"
 }
 
 start_prod_services() {
@@ -42,3 +43,47 @@ start_traefik() {
   ensure_traefik_network
   traefik_compose up -d
 }
+
+stop_traefik() {
+  ensure_env_file
+  traefik_compose down >/dev/null 2>&1 || true
+}
+
+docker_volume_exists() {
+  docker volume inspect "$1" >/dev/null 2>&1
+}
+
+backup_named_volume() {
+  local volume_name="$1"
+  local archive_path="$2"
+
+  docker run --rm \
+    -v "${volume_name}:/volume:ro" \
+    -v "$(dirname "${archive_path}"):/backup" \
+    "${VOLUME_BACKUP_IMAGE}" \
+    sh -lc "tar -czf /backup/$(basename "${archive_path}") -C /volume ."
+}
+
+volume_running_containers() {
+  docker ps --filter "volume=$1" --format '{{.Names}}'
+}
+
+restore_named_volume() {
+  local volume_name="$1"
+  local archive_path="$2"
+  local running
+
+  running="$(volume_running_containers "${volume_name}")"
+  if [[ -n "${running}" ]]; then
+    echo "Volume ${volume_name} is currently used by running containers:" >&2
+    echo "${running}" >&2
+    echo "Stop those containers before restoring this volume." >&2
+    exit 1
+  fi
+
+  docker run --rm \
+    -v "${volume_name}:/volume" \
+    -v "$(dirname "${archive_path}"):/backup" \
+    "${VOLUME_BACKUP_IMAGE}" \
+    sh -lc "find /volume -mindepth 1 -delete && tar -xzf /backup/$(basename "${archive_path}") -C /volume"
+}