swarm-secret-publish and its path unit now run inside authelia's container,
beside the mint, and read each client secret at the path authelia writes it.
The host unit and host path unit, which read the secrets through the
container's root on the host, are gone, and so is
deploy.authelia.hostClientSecretDir, which only they read. The publisher keeps
its store identity, the secret-publisher leaf. The host hands the leaf and the
store's CA into the container as nspawn system credentials, and the unit loads
them; where this host mints the leaf, the container waits for swarm-bao-pki.
Authelia does not wait for the publisher, which retries every 30 seconds while
the store is down.
The container also runs the journal forwarder the other service containers
run, pushing to a receiver of its own on the swarm collector (serviceProducers
swarm-authelia) as a new machine OIDC client (swarm.authelia.otel.clientId)
that authelia registers for itself and the publisher carries to the store. The
fetch unit reads it back under the publisher's leaf, also handed to it as a
system credential, so the swarm-secret-publisher policy gains read on that one
leaf; its stanza keeps create and update, which the exact path would otherwise
take from the services/* prefix. Without the leaf the forwarder is off.
The container drops --link-journal=host, and the host collector stops reading
it. The services' "nothing at <path>" errors name the publisher in authelia's
container.
The metrics store's container now runs the journal forwarder the other
service containers run, pushing to a receiver of its own on the swarm
collector (serviceProducers swarm-victoriametrics) as a new machine OIDC
client (swarm.victoriametrics.otel.clientId), registered by a glue file
wherever authelia runs and published to the store by the secret publisher.
The container keeps its loopback-only netns. The collector cannot dial a
unix socket, so swarm-victoriametrics-egress-relay, a socket-activated
systemd-socket-proxyd inside the container, takes its connections on
127.0.0.1:4380 and passes them to /run/swarm-victoriametrics-egress/egress.sock.
The host's nginx listens there and sends /swarm-victoriametrics/ to the swarm
collector and /api/oidc/token to authelia, both by name and verified, and
refuses every other path. nginx gets ReadWritePaths on that directory and
removes a stale socket before it starts.
The container cannot reach the store, so the client secret is fetched on the
host by swarm-victoriametrics-forwarder-oidc under swarm-metrics-auth's leaf,
the shape swarm-bao-forwarder-oidc has, and bound into the container
read-only. The forwarder module gains hostSecretFile for that: set, it renders
no fetch unit. swarm-metrics-auth's policy gains one read stanza on the
forwarder's client path.
The container drops --link-journal=host, and the host collector stops reading
it.
Also lists the forge publisher's and matrix-ctl's leaves in the forwarder
secrets row of docs/swarm/secrets.md, which the hive-forge/hive-matrix change
missed.
The swarm-nats container now runs its own otel collector, which reads the
container's journal and pushes it to the swarm collector at
https://<swarm.otel.domain>/swarm-nats, authenticated as the queue's
existing OIDC client (swarm.nats.clientId). Records carry
service.name=nats and no hive label.
The collector lives in a reusable container module,
nix/container-modules/swarm-journal-forwarder.nix, which follows
swarm-bao's forwarder: a journald receiver over /var/log/journal with
merge and a file_storage cursor, an otlphttp exporter with an
oauth2client authenticator that requests its own client id as audience,
self-metrics on a loopback telemetry port, and the client secret handed
in through LoadCredential. Unlike swarm-bao, the secret is fetched inside
the container by swarm-journal-forwarder-oidc.service, under the
container's own store identity (the swarm-nats-auth leaf, which already
holds a read grant on secret/swarm/services/swarm-nats/oidc/client).
The fetch retries until the store answers, and the collector restarts
until the file exists. A 10-minute timer re-reads the secret and restarts
the collector when it changed.
The swarm collector's authenticated producer route was hard-wired to
swarm-bao. It is now rendered from swarm.otel.serviceProducers
(internal), one receiver, oidc authenticator, gateway location and
pipeline entry per service: swarm-bao (port 4391, unchanged names) and
swarm-nats (port 4392). The reserved-fragment and port-collision
assertions cover every entry.
The queue's OIDC client registration gains its own id as audience and
RS256-signed access tokens, which the receiver verifies offline.
swarm-nats drops --link-journal=host, so its journal stays in the guest
where the forwarder reads it, as swarm-bao did in 44009dc51. The new
swarm.nats.otel.telemetryPort (8891) keeps the forwarder off the
collectors' 8888-8890 in the shared host netns, with an assertion.
module-eval-nats-authelia gains four cases: the container's forwarder
and fetch unit on the store host and on a queue-only host, the
responder role's read grant, the swarm collector's swarm-nats receiver
on a host without the queue, and the client registration.
Part of #4499
Part of #5342
