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hyperhive/nix/host-modules/glue-bao-readers-policy-order.nix
atlas 48067d07e8 matrix: drop the per-hive appservice and its unused token
Every hive's homeserver loaded a per-hive `hyperhive` appservice
registration, and the swarm minted and delivered an as_token for it
through bao. No client presented that token: swarm-controller creates
every `@hive-<hive>` sender and every agent account with the swarm
appservice token (hive_sender.rs, agent_token.rs), and no Rust code read
the per-hive one.

Removed, with everything that existed only to serve it:
- hive-matrix.nix: the `hyperhive` registration, its activation-time
  render, the host bind mount of /var/lib/hyperhive/matrix-appservice,
  its LoadCredential entry, and the internal options
  `deploy.matrix.appserviceTokenFile` / `appserviceRegistrationScript`.
  tuwunel now loads only the swarm registration.
- glue-matrix-bao-token.nix and its `swarm-bao-matrix-token` unit.
- glue-bao-tls.nix: the matrix-token leaf and its defaults.
- swarm-bao.nix: the `swarm-matrix-token-<hive>` roles and policies
  (`swarm-bao-matrix-token-policy`), and the options
  `deploy.bao.matrixTokenClient{Cert,Key}File` and
  `matrixTokenCommonNamePrefix`, now mkRemovedOptionModule.
- swarm-secret-publisher.nix: the per-hive token mint and its state dir.
- swarm.nix: the reserved `<matrixTokenCommonNamePrefix>-<hive>` CN.
- swarm-secret-client: `matrix::appservice_token_path`.

The swarm registration (swarm-matrix-ctl, swarm-controller) is untouched.
Comments and docs that pointed at the removed glue file now point at
glue-queue-agent-credential.nix, which has the same reader shape.

Refs #4428
2026-10-05 07:48:17 +02:00

61 lines
2.3 KiB
Nix

# Glue: where the store and one of its readers share a host, the reader waits
# for the unit that writes the cert-auth role it logs in with.
#
# ONE PAIRING PER FILE — the store's reader policy units ← the readers
# they grant, and nothing else. Deleting this leaves every reader as it is on a
# host whose store is remote: it may log in before its role exists, and its own
# retries are what carry it past that.
#
# ⚠️ Gated on BOTH the store and that reader being here. Off the store's host
# there is no local policy unit to order against. On the store's host without
# the reader, setting `systemd.services.<reader>.after` would define a unit
# with no ExecStart, so each gate below restates the one the reader's own
# module puts on it. A reader whose gate changes must change here too.
#
# Ordering, never a requirement: a policy unit that failed still counts as
# done, and the reader's own retries carry it past that. `wants` as well as
# `after`, so a reader started on its own pulls its policy unit into the same
# transaction.
{
lib,
config,
...
}:
let
hyperhiveCfg = config.services.hyperhive;
deployCfg = hyperhiveCfg.deploy;
baoDeploy = deployCfg.bao;
havePair = cert: key: cert != null && key != null;
# Reader unit → the gate its own module defines it under.
readersHere = {
# ./glue-queue-agent-credential.nix
swarm-bao-queue-agent =
deployCfg.hive-controller.enable
&& havePair baoDeploy.queueAgentClientCertFile baoDeploy.queueAgentClientKeyFile;
# ./swarm-grafana.nix
swarm-bao-grafana-oidc = deployCfg.grafana.enable;
# ./swarm-otel.nix
swarm-bao-otel-oidc =
deployCfg.swarm-otel.enable
&& havePair baoDeploy.otelOidcClientCertFile baoDeploy.otelOidcClientKeyFile;
# ./swarm-bao.nix: its block is gated on the store, which `orderAfterPolicy`
# already checks.
swarm-bao-forwarder-oidc = true;
# ./swarm-nats.nix: the queue's TLS leaf, not a secret, but the same wait.
swarm-bao-nats-tls = deployCfg.nats.enable;
};
orderAfterPolicy =
reader: here:
lib.mkIf (baoDeploy.enable && here) {
systemd.services.${reader} = {
after = [ "${reader}-policy.service" ];
wants = [ "${reader}-policy.service" ];
};
};
in
{
config = lib.mkMerge (lib.mapAttrsToList orderAfterPolicy readersHere);
}