Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/2669
Removed in 04b9483f0d9e562398e (2022-11-28) when switching from matrix-postgres to
the devture-postgres external Ansible role.
More details: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/CHANGELOG.md#matrix-postgres-has-been-replaced-by-the-comdevtureansiblerolepostgres-external-role
The `import_synapse_sqlite_db.yml` file and documentation has been adapted somewhat compared to before, so that:
- it doesn't try to start Postgres automatically. You need to handle
this part manually
- it doesn't rely on the integrated Postgres and may potentially work
with external Postgres instances just the same
- it doesn't wipe out the whole database anymore. By default, we assume
it's empty anyway and there's no need for such things. If it's not,
then it's also probably dangerous to be so destructive.
This is all completely untested, but will hopefully work.
Without these:
- `--tags=install-synapse` and `--tags=install-all` would be incomplete
and will not contain Synapse worker configuration
- `--tags=install-synapse-reverse-proxy-companion` and
`--tags=setup-synapse-reverse-proxy-companion` would not contain
Synapse worker configuration
This was useful when the order of these roles in relation to Synapse
mattered (when we were injecting stuff into Synapse variables during
runtime). This is no longer the case since 0ea7cb5d1812a88, so all of
this can be removed.
These `init.yml` (now `inject_into_nginx_proxy.yml`) tasks do not need
to `always` run. They only need to run for `setup-all` and
`setup-nginx-proxy`. Unless we're dealing with these 2 tags, we can
spare ourselves a lot of work.
This patch also moves the `when` statement from `init.yml` into
`main.yml` in an effort to further optimize things by potentially
avoiding the extra file include.
