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swarm-ci-runner, swarm-grafana, swarm-victorialogs: forward each container's journal to the swarm collector

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Each container now runs the journal forwarder the queue's and the builder's
containers run, pushing to a receiver of its own on the swarm collector. Each
authenticates as a new machine OIDC client of its own
(swarm.<service>.otel.clientId), registered by a glue file wherever authelia
runs, minted by authelia and published to the store by the secret publisher.
Grafana's browser login client is unchanged.

The fetch unit inside each container reads the client secret with the store
identity the host already holds for that service (the runner's, Grafana's,
and the log store responder's), now also handed into the container as an
nspawn system credential. Each of those three policies gains one read stanza
on its forwarder's client path. The host units that use those identities are
unchanged.

The three containers drop --link-journal=host, and the host collector stops
reading them.
This commit is contained in:
atlas 2026-10-16 10:14:57 +02:00 • committed by mara
commit c6ca9ab845
20 changed files with 810 additions and 107 deletions
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37
nix/host-modules/glue-victorialogs-otel-oidc-client.nix Normal file
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# Glue: register the log store container's journal forwarder as an OIDC
# client wherever authelia runs.
#
# ONE PAIRING PER FILE: that forwarder ← authelia, and nothing else.
# Without it authelia mints no secret, the publisher has nothing to copy into
# the store, and the forwarder's export is a 401.
#
# Gated on authelia being HERE, not on this host running the log store: a
# client is a row in THIS host's provider config, the split
# ./glue-swarm-bao-otel-oidc-client.nix makes for the same reason.
{
lib,
config,
...
}:
let
hyperhiveCfg = config.services.hyperhive;
clientId = hyperhiveCfg.swarm.victorialogs.otel.clientId;
in
{
config = lib.mkIf hyperhiveCfg.deploy.authelia.enable {
services.hyperhive.swarm.authelia.oidc.clients = [
{
id = clientId;
description = "HyperHive log store journal forwarder";
kind = "machine";
redirectUris = [ ];
# Its own id as its own permitted audience, the one the swarm
# collector's receiver for this container checks.
audience = [ clientId ];
# The receiver verifies the token offline against `/jwks.json`;
# authelia's default opaque handle fails there.
accessTokenSignedResponseAlg = "RS256";
}
];
};
}