hyperhive/docs/swarm/services.md

Swarm-wide services

Some things exist once per swarm, not once per hive: the forge, the matrix homeserver, the SSO provider, the CA. Two options say where the optional ones live, and everything else derives:

services.hyperhive.enableAllLocalDefaults = true;   # everything on this box
# or, for a dedicated services host with hives elsewhere:
services.hyperhive.swarm.enableRequiredServices = true;

enableAllLocalDefaults is the all-on-one-box switch: it defaults both swarm.enableRequiredServices (the shared services run here) and swarm.ca.autoConfigure (the swarm CA is generated here). Each derived toggle can still be set on its own, so "all local except X" needs no further option.

Both default to off, and that is deliberate: a host cannot tell whether it is meant to be the swarm's service host, so this is an operator saying so rather than something inferred. With them off, a hive is a client of those services — it configures how to reach them and runs none of them.

The forge is the exception, and not because it is per-hive: it is swarm-wide but not optional, being the canonical store for the meta flake and every agent's config repo, so it deploys with hyperhive itself and has no enable to derive from anything.

SSO (authelia)

One authelia per swarm, in a swarm-authelia container, at auth.<swarm-domain>. Operator and agents are both subjects of the same provider, differentiated by roles and claims rather than by mechanism — there is one IdP and one auth path.

• swarm.authelia.enable — run the container here. Defaults from swarm.enableRequiredServices.
• swarm.authelia.url — where clients are sent to authenticate. Present on every hive, defaulting to this host's own instance only when this module is the thing running it; otherwise null, and a hive joining someone else's swarm sets it explicitly. Null means "no SSO configured", and consumers say so rather than guessing an address.

The users database is written by swarm-controller, not by hand: agents are created and destroyed continuously, so the subject set is dynamic. This module only guarantees the file exists and parses, so authelia starts with nobody in it rather than failing to start — a provider with no subjects yet is the correct state before anything has provisioned them. Session and storage keys are generated in the container on first boot and never rotated automatically; replacing one invalidates data already written (sessions, the encrypted store), so that is an operator action.

Storage is local sqlite and the notifier writes to a file. Both are small-deployment choices, and the scope is the justification: redis buys shared session state across replicas and there is one instance; SMTP exists to mail humans, and provisioning here is programmatic.

See sso.md for bootstrapping the first user and the OIDC relying-party flow, and secrets.md for where each of authelia's keys is generated and read.

Metrics (VictoriaMetrics + Grafana)

The swarm's telemetry lands in one VictoriaMetrics and is read through one Grafana, in two containers at metrics.<swarm-domain> and grafana.<swarm-domain>. Two containers rather than one so Grafana can be restarted or broken without taking the time-series database with it.

Both are opt-in — unlike authelia and matrix they do not follow swarm.enableRequiredServices, because turning them on starts a database that grows for as long as the swarm runs:

services.hyperhive.swarm.victoriametrics.enable = true;
services.hyperhive.swarm.grafana.enable = true;

Option	When you'd touch it
swarm.victoriametrics.retentionPeriod	Default 5y. Lower it once you have measured how fast this swarm actually fills a disk — the default is deliberately generous because too-short silently discards history you cannot get back.
swarm.grafana.oidc.role	Default Admin for everyone who logs in. Lower to Viewer/Editor if the swarm grows operators who should not be able to reconfigure Grafana.
swarm.grafana.datasourceUrl	Only if you front VictoriaMetrics with something else. It defaults to the store on this host, which is the only thing it can reach.

Logging in. Grafana is behind swarm SSO, so the accounts are the authelia ones — there is no separate Grafana password, and the local login form is switched off whenever SSO is configured. If you enable Grafana on a host with no authelia, the form stays on and Grafana's default admin/admin applies; change it before exposing that host.

The metrics arrive from the swarm's OTEL collector, not from agents directly — see ../observability.md. Neither container is reachable except through the gateway: both bind loopback, and VictoriaMetrics' write endpoint takes no credential, so the collector is the only intended writer.