I’m running a dockerized GitLab instance with "userns-remap" enabled and I’d like to use a shared PostgreSQL on the host. The bridge created when I docker-compose up, however, gets a new random name "br-xxxxxxxxxxxx" on every run.
This wouldn’t usually be a problem, but the Vuurmuur firewall on the host blocks all traffic from the container to the host by default and I need the bridge name in order to set an allowing rule on Vuurmuur.
I found a number of related topics e.g.
com.docker.network.bridge.name, but I’m having trouble puzzling it all together. So far, I’ve tried to find a way to make sure every time the container is upped, the bridge gets the same name and same IP/mask assigned. Is this even possible in
docker-compose.yml or is this approach utterly wrong?
Here’s the unspectactular
docker-compose.yml so far:
version: '3.8' services: web: image: 'gitlab/gitlab-ce:latest' restart: always hostname: 'gitlab.example.com' environment: GITLAB_OMNIBUS_CONFIG: | external_url 'https://gitlab.example.com' gitlab_rails['db_adapter'] = 'postgresql' gitlab_rails['db_host'] = '172.18.0.1' (...) ports: - '8080:80' volumes: (...)
Thanks for any hints!
Source: Docker Questions