Nothing reads it any more: hive-c0re creates accounts as the hive's
appservice, so the mint, the host file, the bind mount, the
`LoadCredential` entry and tuwunel's `registration_token_file` all go.
⚠️ `allow_registration` has to go to `false` in the same change, and not
as hardening. tuwunel refuses to START when registration is allowed with
no token configured — it demands
`yes_i_am_very_very_sure_…_open_registration_…` instead — so dropping the
token and leaving the flag true is not a lax homeserver, it is one that
does not boot. The flag is checked only for requests arriving without an
appservice token, so hive-c0re provisions exactly as before and everyone
else is refused outright.
The swarm secret store keeps its role, repointed at the credential that
replaced the token (`swarm/hives/<hive>/matrix/appservice-token`). Its
unit now also re-runs hive-matrix's own registration renderer after
writing the file: the token is half an agreement, and a registration
still naming the previous value authenticates nobody. The renderer is
shared through an internal option rather than copied, so the
registration's shape has one home.
Both spellings of `registrationTokenFile` become
`mkRemovedOptionModule` with a message naming what replaced them. A hive
that never set the option — the default — is unaffected; one that pinned
it fails to evaluate with instructions instead of a silent no-op.
An upgraded hive needs no intervention: the activation script has both
halves in place before the homeserver restarts, existing agents keep the
tokens their devices already hold, and the old token file is left on
disk read by nothing. docs/integrations/matrix.md spells the path out.
Refs #4402
Ruled: swarm-bao-queue-agent.service must run before hive-c0re.service
and be wanted (not required) by it, so no agent container renders
ahead of the reader's attempt at its credential. An unreachable store
delays hive-c0re's start by the reader's own start-limit window rather
than failing it outright.
Refs #4314
The publisher on the authelia host has been writing
`secret/swarm/hives/<hive>/queue/agent` — the OIDC client secret agent
containers present to the swarm queue, plus the client id it belongs to —
and nothing read it. This is the reader: a oneshot `swarm-bao-queue-agent`
that logs in with the host's certificate and lands the two fields as two
files under `deploy.hive-controller.queue.agentCredentialDir`, the secret
`0600` and the client id `0644`.
Two files rather than one because that is the consumer's shape:
`swarm_queue_client::QueueConfig::from_env` takes the secret as a path and
the client id as a value, so the split here is what keeps the next slice
from parsing anything.
Same shape as the store's first reader, `glue-matrix-bao-token.nix` — a
cert login that fails loudly under `Restart=on-failure` because every state
it fails on is one a retry fixes, then reads that degrade quietly because no
retry turns "no value there" into a value. Unlike the matrix token there is
no local fallback and none is possible, so absent files mean this hive's
agents do not connect, which is the ordinary state of a swarm before the
publisher has run.
Nothing consumes the files yet and this unit is ordered `Before=` nothing.
The next slice bind-mounts them into agent containers through hive-c0re and
adds the ordering edge along with them.
Refs #3805
