Improve network handling

Change traefik setup to only work with a single network traefik-public and let the projects create their own private networks. Traefik doesn't need to know those project related networks.

added Doing label

assigned to @jurgenhaas

changed the description

mentioned in commit composer/library/docker-traefik@99a5647c

mentioned in commit 309f5290

Traefik and network usage got optimized. This means, that Traefik now only works with the traefik-public network and never needs to be restarted anymore. Each of the projects will now create their own private network, so that the containers can communicate with each other, but only those with exposed http services will also use the public traefik network.

Please run these commands to make use of this:

c up
a d4d update
a d4d up -- --force-recreate --remove-orphans

closed

mentioned in commit composer/library/docker-traefik@4941d07b

mentioned in commit docker/gitlab-drupal-ci@4b3f4d83

mentioned in commit docker/l3d@0b632384

removed Doing label