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hyperhive/nix/host-modules/deploy.nix
atlas 2aa924d85a deploy: move the matrix homeserver toggle out of swarm
swarm.matrix.enable was the last toggle still spelled swarm.*, which
is the namespace every host in the swarm agrees on - and "does this
host run the homeserver" is exactly what differs between them. It
moves to deploy.matrix.enable with the rest; the genuinely swarm-wide
matrix settings stay where they are.

mkRenamedOptionModule keeps existing configs evaluating with one
warning naming both paths.

The sweep for readers had to be unanchored and cross-language: three
of them were outside nix, including a hive-c0re error message telling
the operator to set the old name. A dotted grep also cannot see the
rename module's own list form, so that was checked separately.
2026-08-30 15:17:02 +02:00

218 lines
8.3 KiB
Nix

# "What does THIS host deploy?"
#
# Separated from `services.hyperhive.swarm.*` because those are two
# different kinds of fact and only one of them varies per machine:
#
# swarm.* — swarm-wide truth. The swarm's name, domain, hives, peers,
# CA, and where each service lives. **Identical on every
# host**, byte for byte; a hive needs all of it to be a
# *client* of the swarm.
# deploy.* — this machine's deployment decisions. Necessarily different
# on every host, because that is what a deployment is.
#
# The `enable` toggles used to live under `swarm.*`, which made the
# namespace that is supposed to be identical everywhere carry the one
# thing that must differ.
#
# Flat and named for the thing deployed — `deploy.forgejo`, not
# `deploy.swarmServices.forgejo`: grouping by "swarm service" re-encodes
# the service-side taxonomy into a layer that does not care about it.
#
# ⚠️ Each entry is an attrset with an `enable`, not a bare bool, so a
# service that grows a second *deployment* decision has somewhere to put
# it — `deploy.forgejo = { enable; ci; }` is then an ordinary addition
# rather than a migration. `ci` ("does this host run the runner too") is
# exactly that shape, and a bare bool leaves it unrepresentable.
#
# ⚠️ The renames below are deliberately in this one file rather than
# spread across the service modules, so the whole move has a single home
# and a single file to delete when the deprecation window closes — the
# shape ./swarm-peers-removed.nix already uses.
{ lib, config, ... }:
let
deployCfg = config.services.hyperhive.deploy;
in
{
imports = [
# Same type, same meaning, new path — so a rename carries it exactly
# and existing configs keep evaluating with one warning naming both
# paths. Precedent: ./hive-forge/default.nix, ./hive-matrix.nix.
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "grafana" "enable" ]
[ "services" "hyperhive" "deploy" "grafana" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "victoriametrics" "enable" ]
[ "services" "hyperhive" "deploy" "victoriametrics" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "victorialogs" "enable" ]
[ "services" "hyperhive" "deploy" "victorialogs" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "controller" "enable" ]
[ "services" "hyperhive" "deploy" "swarm-controller" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "ui" "enable" ]
[ "services" "hyperhive" "deploy" "swarm-ui" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "authelia" "enable" ]
[ "services" "hyperhive" "deploy" "authelia" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "nats" "enable" ]
[ "services" "hyperhive" "deploy" "nats" "enable" ]
)
(lib.mkRenamedOptionModule
[ "services" "hyperhive" "swarm" "otel" "enable" ]
[ "services" "hyperhive" "deploy" "swarm-otel" "enable" ]
)
];
options.services.hyperhive.deploy = {
grafana.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm's metrics UI on this host.
Off by default and not derived from
{option}`services.hyperhive.enable`: a swarm has one Grafana, so
running it is a decision about this host rather than about
whether hyperhive is installed.
'';
};
victoriametrics.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm's metrics store on this host.
Derives from
{option}`services.hyperhive.swarm.enableRequiredServices` together
with {option}`services.hyperhive.deploy.grafana.enable`: a store
with no UI is unreadable and a UI with no store is empty, so there
is no sensible deployment that takes one and not the other from
that switch. Set either directly to run exactly one.
'';
};
victorialogs.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm's log store on this host.
Derives from
{option}`services.hyperhive.swarm.enableRequiredServices` for the
same reason as the metrics pair above: a hive that is not the
service host is a *client* of this store, not a second one.
'';
};
authelia.enable = lib.mkOption {
type = lib.types.bool;
default = false;
example = true;
description = ''
Run the swarm's authelia in a `swarm-authelia` container on this
host. {option}`services.hyperhive.swarm.enableRequiredServices`
turns this on — a swarm has one SSO provider, and that says it
lives here.
With it off, this hive is a *client*:
{option}`services.hyperhive.swarm.authelia.url` still points at
whoever runs it, and no container is created. That asymmetry is
why the two live in different namespaces — every hive needs the
client half, only one runs the server half.
'';
};
swarm-otel.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the **swarm's** telemetry collector on this host.
Derives from
{option}`services.hyperhive.swarm.enableRequiredServices` with the
metrics pair it feeds: a swarm has one of these, and it belongs
wherever the shared services live rather than on every hive.
Named `swarm-otel` rather than `otel` because there are two
collectors and the tier is the whole distinction:
{option}`services.hyperhive.otel.enable` is the **hive-tier** one,
which every hive runs. A bare `deploy.otel` would not say which
it meant. A hive that does not run the swarm collector still runs
its own, and reaches this one by name at
{option}`services.hyperhive.swarm.otel.domain`.
'';
};
matrix.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm's matrix homeserver — matrix-tuwunel, in a
`hive-matrix` container — on this host.
Derives from
{option}`services.hyperhive.swarm.enableRequiredServices` with
the other once-per-swarm services. Set it here directly to put
the homeserver somewhere other than the host holding the rest.
Client-side settings stay in
{option}`services.hyperhive.swarm.matrix.*`, which every hive
agrees on; this is only the decision to run it here.
'';
};
nats.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm's message queue in a `swarm-nats` container on this
host. A swarm has one queue, so this belongs on the same host as
the rest of the shared services.
Off by default, and off means *absent*: no container is created
and nothing else in the evaluated config changes.
'';
};
swarm-controller.enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Run the swarm-controller daemon on this host.
Off by default and deliberately not derived from
{option}`services.hyperhive.enable`: a swarm has one controller,
so running it is a decision about this host rather than about
whether hyperhive is installed.
'';
};
swarm-ui.enable = lib.mkOption {
type = lib.types.bool;
default = deployCfg.swarm-controller.enable;
defaultText = lib.literalExpression "services.hyperhive.deploy.swarm-controller.enable";
example = true;
description = ''
Serve the swarm UI from this host.
Derived from
{option}`services.hyperhive.deploy.swarm-controller.enable` rather
than from
{option}`services.hyperhive.swarm.enableRequiredServices`: the UI
is a view onto the controller's state and reaches it over that
daemon's unix socket, so the host that runs the controller is the
host that can serve the UI. A hive that merely *uses* a swarm has
nothing to serve here.
'';
};
};
}