This is done for a few reasons:
- less globals and more indepdendence for each role is better. We rely
on various externally-hosted roles and they don't rely on this global
either.
- `matrix_container_global_registry_prefix` could make people think they
could just override this variable and have all their images pull from
elsewhere. This is rarely the case, unless you've taken special care
to mirror all the various components (from their respective
registries) to your own. In such a case, you probably know what you're
mirroring and can adjust individual variables.
- nowadays, various components live on different registries.
With Docker Inc tightening rate limits for Docker Hub, it's even more
likely that we'll see increased diversity in where images are hosted
Related to 0241c71a4c
Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3270#issuecomment-2143782962
With this change, it should be possible for people to adjust the Docker
dependency from `docker.service` to something else (e.g. `pkg-ContainerManager-dockerd.service`),
or to completely eliminate it by setting `devture_systemd_docker_base_docker_service_name` to an empty string.
This makes it easier for people to use the playbook against a Synology DSM server.
This is backward-compatible with what we had before. We're not changing
the SSL mode - just making it configurable.
Most components are defaulting to `sslmode=disable`, while some
(`matrix-bot-matrix-reminder-bot` and others) do not specify an `sslmode` at all.
We're making sslmode configurable, because certain external Postgres
servers may be configured to require SSL encryption.
In such cases `sslmode=disable` does not work and needs to be changed to
`sslmode=require` or something else (`verify-ca`, `verify-full`, etc).
