This commit adds two services, `grafana` and `prometheus`, and sets up
some existing services (`dovecot` and `prosody`) to expose metrics into
Grafana. In addition, systemd services have been added to facilitate
registering metrics for services into Prometheus, as well as
automatically provisioning Grafana dashboards based on static JSON
representations.
This work will continue to evolve as more services gain proper Grafana
dashboards, and Loki is also integrated for access to the systemd
journal.
By default, a `hugo-build-local@.service` systemd service is included,
for building Hugo-based sites as stored in a local Git repository (as
served by the `git` service), and into a volume (which is intended to be
served by the `nginx-serve-volume` service).
This commit contains a fairly large diff for a fairly small change:
moving the `config/common` directory to `host/base` to better reflect
its intended use, and promoting `config/service` to the root directory.
These changes unlock some improvements in `coreos-home-server-update`
processes, which will (assuming `/etc/coreos-home-server/base` exists)
keep host-wide systemd services in sync in addition to service-specific
ones.
Changes have been make to the `Makefile` and a few other places where
`config/common` was referenced, but most of this work is renames that
are not intended to break compatibility with new or running servers.
Most importantly, this helps make WebRTC calls in XMPP more reliable
when either (or both) endpoints are behind NAT (as is the case with most
mobile devices), and avoids depending on a third-party service.
Default configuration has been applied in the virtual environment file;
this allows for setting up most host-dependent configuration easily.
Navidrome is a Subsonic/Airsonic-compatible music server with a built-in
web interface, and can be used as a quasi-self-hosted-Spotify-alternative.
By default, music files are read from an empty `navidrome-music` volume,
which is expected to be populated via whatever external means are
available to the server. The workflow here might be improved in the
future.
The `discord-ircd` service has been removed as of a few commits ago, but
references to this were not removed entirely. In addition, we now mask,
not disable, the `coreos-home-server-update` timer to ensure this cannot
be re-enabled spuriously.
Previous experiments in using the RAID array as simple storage, with an
implied installation to a secondary medium (an SSD on port 5) failed,
and a simpler alternative has been reached.
