Error launching weblate container

[FranRM]

Describe the issue

I tried to launch a container with weblate and always get this error:

weblate | Starting Weblate 5.12.2...
weblate | Generating Django secret...
weblate | System check identified no issues (2 silenced).
weblate | [2025-08-01 12:25:40,023: WARNING/34] Command failed: ConnectionError: Error -3 connecting to cache:6379. Temporary failure in name resolution.
weblate | Traceback (most recent call last):
weblate | File "/app/venv/lib/python3.13/site-packages/django_redis/cache.py", line 29, in _decorator
weblate | return method(self, *args, **kwargs)
weblate | File "/app/venv/lib/python3.13/site-packages/django_redis/cache.py", line 138, in has_key
weblate | return self.client.has_key(*args, **kwargs)
weblate | ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/django_redis/client/default.py", line 740, in has_key
weblate | raise ConnectionInterrupted(connection=client) from e
weblate | django_redis.exceptions.ConnectionInterrupted: Redis ConnectionError: Error -3 connecting to cache:6379. Temporary failure in name resolution.
weblate |
weblate | During handling of the above exception, another exception occurred:
weblate |
weblate | Traceback (most recent call last):
weblate | File "/app/venv/bin/weblate", line 10, in
weblate | sys.exit(main())
weblate | ~~~~^^
weblate | File "/app/venv/lib/python3.13/site-packages/weblate/runner.py", line 19, in main
weblate | utility.execute()
weblate | ~~~~~~~~~~~~~~~^^
weblate | File "/app/venv/lib/python3.13/site-packages/django/core/management/init.py", line 436, in execute
weblate | self.fetch_command(subcommand).run_from_argv(self.argv)
weblate | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/django/core/management/base.py", line 416, in run_from_argv
weblate | self.execute(*args, **cmd_options)
weblate | ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/django/core/management/base.py", line 460, in execute
weblate | output = self.handle(*args, **options)
weblate | File "/app/venv/lib/python3.13/site-packages/django/core/management/commands/shell.py", line 247, in handle
weblate | exec(options["command"], {**globals(), **self.get_namespace(**options)})
weblate | ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
weblate | File "", line 1, in
weblate | File "/app/venv/lib/python3.13/site-packages/django_redis/cache.py", line 36, in _decorator
weblate | raise e.cause # noqa: B904
weblate | ^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/django_redis/client/default.py", line 738, in has_key
weblate | return client.exists(key) == 1
weblate | ~~~~~~~~~~~~~^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/redis/commands/core.py", line 1729, in exists
weblate | return self.execute_command("EXISTS", *names, keys=names)
weblate | ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/redis/client.py", line 559, in execute_command
weblate | return self._execute_command(*args, **options)
weblate | ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/redis/client.py", line 565, in _execute_command
weblate | conn = self.connection or pool.get_connection(command_name, **options)
weblate | ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
weblate | File "/app/venv/lib/python3.13/site-packages/redis/connection.py", line 1422, in get_connection
weblate | connection.connect()
weblate | ~~~~~~~~~~~~~~~~~~^^
weblate | File "/app/venv/lib/python3.13/site-packages/redis/connection.py", line 363, in connect
weblate | raise ConnectionError(self._error_message(e))
weblate | redis.exceptions.ConnectionError: Error -3 connecting to cache:6379. Temporary failure in name resolution.

I already tried

• I've read and searched the documentation.
• I've searched for similar filed issues in this repository.

Steps to reproduce the behavior

I use this compose:

services:
  redis:
    image: redis:7
    container_name: redis
    restart: unless-stopped
    networks:
      - 71_test_bridge

  db:
    image: postgres:15
    container_name: db
    restart: unless-stopped
    environment:
      POSTGRES_DB: weblate
      POSTGRES_USER: weblate
      POSTGRES_PASSWORD: weblate
    volumes:
      - db_data:/var/lib/postgresql/data
    networks:
      - 71_test_bridge

  weblate:
    image: weblate/weblate:5.12
    container_name: weblate
    environment:
      CACHE_URL: redis://redis:6379/0
      DJANGO_CACHE_URL: redis://redis:6379/0
      DJANGO_REDIS_URL: redis://redis:6379/0
      DATABASE_URL: postgres://weblate:weblate@db/weblate
      POSTGRES_HOST: db
      POSTGRES_DB: weblate
      POSTGRES_USER: weblate
      POSTGRES_PASSWORD: weblate
      WEBLATE_EMAIL_HOST: smtp.example.com
      WEBLATE_EMAIL_HOST_USER: user
      WEBLATE_EMAIL_HOST_PASSWORD: pass
      WEBLATE_SERVER_EMAIL: [email protected]
      WEBLATE_DEFAULT_FROM_EMAIL: [email protected]
      WEBLATE_SITE_DOMAIN: weblate.example.com
      WEBLATE_ADMIN_PASSWORD: password for the admin user
      WEBLATE_ADMIN_EMAIL: [email protected]
    ports:
      - "8069:8069"
    networks:
      - 71_test_bridge

volumes:
  db_data:

networks:
  71_test_bridge:
    external: true

Expected behavior

No response

Screenshots

No response

Exception traceback

Additional context

No response

[nijel]

The container cache configuration doesn't match running containers:

• Either the cache and db container needs to follow the naming; please see https://docs.weblate.org/en/latest/admin/install/docker.html#installation
• Or you need to change the environment to tell Weblate use differently named servers; see https://docs.weblate.org/en/latest/admin/install/docker.html#caching-server-setup

PS: You are also missing persistence and volume on the redis container, that will cause serious performance impact on restarts.

[FranRM]

The problem was the lack of the REDIS_HOST label, now it works properly, thanks.

[FranRM]

Now i´m trying to login, but i receave the next error when i introduce the admin credentials.

Permiso denegado

Falló la verificación de CSRF. Se interrumpió la petición.

The translation is:
"Permision denied"
"CSRF verification failed. The petition was discontinued."

Have you any idea of what can be happening? in the local instalation works fine, but in the remote container makes this error.

[nijel]

See https://docs.weblate.org/en/latest/admin/install.html#reverse-proxy