Previously, it had to go through matrix-nginx-proxy.
It's exposed to Traefik directly via container labels now
Serving at a path other than `/` doesn't work well yet.
We'd like to auto-enable traefik-certs-dumper for these setups.
`devture_traefik_certs_dumper_ssl_dir_path` will be empty though,
so the role's validation will point people in the right direction.
This gets us started on adding a Traefik role and hooking Traefik:
- directly to services which support Traefik - we only have a few of
these right now, but the list will grow
- to matrix-nginx-proxy for most services that integrate with
matrix-nginx-proxy right now
Traefik usage should be disabled by default for now and nothing should
change for people just yet.
Enabling these experiments requires additional configuration like this:
```yaml
devture_traefik_ssl_email_address: '.....'
matrix_playbook_traefik_role_enabled: true
matrix_playbook_traefik_labels_enabled: true
matrix_ssl_retrieval_method: none
matrix_nginx_proxy_https_enabled: false
matrix_nginx_proxy_container_http_host_bind_port: ''
matrix_nginx_proxy_container_federation_host_bind_port: ''
matrix_nginx_proxy_trust_forwarded_proto: true
matrix_nginx_proxy_x_forwarded_for: '$proxy_add_x_forwarded_for'
matrix_coturn_enabled: false
```
What currently works is:
reverse-proxying for all nginx-proxy based services **except** for the Matrix homeserver
(both Client-Server an Federation traffic for the homeserver don't work yet)
Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2427
This just enables the endpoint, which is somewhat helpful, but not
really enough to scrape them. Ideally, we'd be injecting these targets
into the Prometheus scrape config too.
For now, registering targets with Prometheus is very manual
(`matrix_prometheus_scraper_postgres_enabled`, `matrix_prometheus_scraper_hookshot_enabled`, ..).
This should be redone - e.g. a new `matrix_prometheus_scrape_config_jobs_auto` variable,
which is dynamically built in `group_vars/matrix_servers`.
selectattr() returns a generator object, an iterator. This leads to an exception later, lists can't concated to iterators, only to other lists. So '| list' converts the iterator to a list and the script runs happily.