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swarm-ci-runner: load the registration token in a register unit of its own

systemd hands a unit's credentials to every process of that unit, and a
host job is a process of the runner daemon, so the `LoadCredential=` on
gitea-runner-swarm still let any workflow read the registration token
from `$CREDENTIALS_DIRECTORY`.

swarm-ci-runner-register.service, a oneshot under the daemon's dynamic
user and state dir, now holds the only `LoadCredential=` and runs the
precond and `act_runner register` (only when `.runner` is missing). The
daemon unit has no credential, no `EnvironmentFile` and no `TOKEN`; its
pre-start step starts the register unit, so a missing token fails the
daemon's start and `Restart=on-failure` retries it.

The precond compares `.runner`'s labels in the form the daemon rewrites
them to (`nix` -> `nix:host`); compared verbatim, a scheme-less label
re-registered the runner on every start.

tmpfiles removes the unused `registration-token.env` and upstream's
`.token-hash`/`.labels` markers.
This commit is contained in:
atlas 2026-10-05 16:33:24 +02:00
commit 8ffceea8e3
4 changed files with 184 additions and 100 deletions

View file

@ -55,22 +55,22 @@ of the cell says how.
<!-- vale write-good.Passive = NO -->
| store path | minter | reader — pulls at runtime, holds in memory | automatic re-mint | automatic re-pull |
| ----------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `swarm/agents/<agent>/matrix/main` | `swarm-controller`, with the swarm's appservice token, at agent creation and in a five-minute pass | the agent container itself, under the certificate its hive passed in | ✅ the pass re-mints when the stored token is missing, unknown to the homeserver, or someone else's | ✅ `hive-matrix-daemon` exits when the homeserver rejects its token, and a five-minute timer restarts it, which reads the store again |
| `swarm/agents/<agent>/matrix/<account>` | `swarm-controller` | the agent container itself, under the certificate its hive passed in | must be stated | must be stated |
| `swarm/controller/swarm-controller/matrix/appservice-token` | `swarm-matrix-ctl`, inside the `hive-matrix` container, once | `swarm-controller`, under its own certificate | ❌ `swarm-matrix-ctl` mints it once; the container keeps its copy and republishes it when the store's differs | ✅ the controller reads it on every five-minute matrix pass |
| `swarm/controller/swarm-controller/oidc/client` | authelia, at its first boot; `swarm-secret-publish` copies it in | `swarm-controller`, under its own certificate, once at start | ❌ authelia mints it once. A re-mint is republished by `swarm-secret-publish`'s path unit | ❌ read once at start; the controller holds the old value until it restarts |
| `swarm/agents/<agent>/bao-mtls` | the store's agent PKI mount (`deploy.bao.agentPkiMountPath`), which generates the key, at `swarm-controller`'s request at agent creation | `hive-c0re`, under the hive's own certificate, when it writes the agent's container config | ✅ `swarm-controller`'s five-minute pass re-issues a live agent's leaf once it's past half its validity (45 of 90 days, read from the certificate itself) | ❌ `hive-c0re` reads it when it writes the container config, so the agent presents a new leaf from its next start; the old leaf stays valid until it expires |
| `swarm/agents/<agent>/queue` | `swarm-controller`, at agent creation | `hive-agent` in the agent container, under the agent's own certificate, held in memory — the identity it presents to the swarm queue, naming that one agent rather than its hive | ✅ `swarm-controller`'s five-minute pass re-mints a live agent's secret once it's 45 days old by `minted_at` on the stored object; a secret with no `minted_at` gets one stamped, value unchanged. The pass skips agents declared `Destroyed` — declaring an agent destroyed deletes every version of the path instead, the undo of the mint rather than another one | ✅ `hive-agent` reads the path before its first connect and again on every reconnect attempt, so a reconnect after a re-mint presents the new secret. An open connection keeps the secret it connected with; after a revocation the agent keeps retrying under the queue client's backoff |
| `swarm/agents/<agent>/forge-token` | `swarm-controller`, at agent creation and in a pass every 5 minutes over every agent with a store identity | the agent container itself, under its own certificate, fetched to `/run/hive-agent-forge-token/token` | ✅ the controller re-mints when the stored token is missing or no longer matches the forge (last eight characters and scopes) | ✅ the agent re-fetches on a 10-minute timer |
| `swarm/agents/<agent>/forge/<label>` | `swarm-controller`, when an operator links an external forge account in the swarm UI | `hive-agent-forge-accounts` in the agent container, under the agent's own certificate, into `<state>/forge-<label>-token` and `forge-<label>.json` | ❌ an operator's token; replaced only by deleting it and linking the label again | ✅ the agent re-fetches on a 2-minute timer |
| `swarm/agents/<agent>/github-token` | `swarm-controller`, when an operator links a GitHub account in the swarm UI | `hive-agent-github-token` in the agent container, under the agent's own certificate, into `<state>/github-token` | ❌ an operator's token; replaced only by deleting it and linking it again | ✅ the agent re-fetches on a 2-minute timer |
| `swarm/hives/<hive>/matrix/sender-token` | `swarm-controller`, with the swarm's appservice token, for every hive in its directory in a five-minute pass | `swarm-controller` under its own certificate, before it decides whether to mint, and hive-c0re's `stored_sender_token()`, under the hive's own certificate | ✅ the controller's pass re-mints when the stored token is missing, unknown to the homeserver, or someone else's | ✅ hive-c0re's matrix sweep reads the store every run and overwrites its token file when the store's token differs |
| `swarm/hives/<hive>/queue/agent` | authelia | `swarm-bao-queue-agent` on the hive's host, under its own per-hive certificate; no agent's policy reaches it | must be stated | must be stated |
| `swarm/services/<clientId>/oidc/client` | authelia | that service's own reader, under its own certificate — the queue responder's under `swarm-nats-auth`'s, the homeserver's under `swarm-matrix-ctl`'s; the bao UI's by the store's granter | must be stated | must be stated |
| `swarm/services/ci-runner/registration-token` | `swarm-controller`, from the forge's admin API, at start and in a five-minute pass; its grant on the path is write-only | `swarm-bao-ci-runner` on the runner's host, under the runner's own certificate, into a file only the runner's register step loads; no other principal's policy reads it | ❌ the forge hands out one token until an admin resets it; the controller writes a reset token within five minutes | ❌ `swarm-bao-ci-runner` reads it when it starts, at boot or deploy, and restarts the runner when the value changed |
| _(not in the store)_ a hive's mTLS leaf | the store's own PKI, or an operator placing it by hand | its own client, off disk — the exception above, because it's what makes every other row's pull possible | must be stated | must be stated |
| store path | minter | reader — pulls at runtime, holds in memory | automatic re-mint | automatic re-pull |
| ----------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `swarm/agents/<agent>/matrix/main` | `swarm-controller`, with the swarm's appservice token, at agent creation and in a five-minute pass | the agent container itself, under the certificate its hive passed in | ✅ the pass re-mints when the stored token is missing, unknown to the homeserver, or someone else's | ✅ `hive-matrix-daemon` exits when the homeserver rejects its token, and a five-minute timer restarts it, which reads the store again |
| `swarm/agents/<agent>/matrix/<account>` | `swarm-controller` | the agent container itself, under the certificate its hive passed in | must be stated | must be stated |
| `swarm/controller/swarm-controller/matrix/appservice-token` | `swarm-matrix-ctl`, inside the `hive-matrix` container, once | `swarm-controller`, under its own certificate | ❌ `swarm-matrix-ctl` mints it once; the container keeps its copy and republishes it when the store's differs | ✅ the controller reads it on every five-minute matrix pass |
| `swarm/controller/swarm-controller/oidc/client` | authelia, at its first boot; `swarm-secret-publish` copies it in | `swarm-controller`, under its own certificate, once at start | ❌ authelia mints it once. A re-mint is republished by `swarm-secret-publish`'s path unit | ❌ read once at start; the controller holds the old value until it restarts |
| `swarm/agents/<agent>/bao-mtls` | the store's agent PKI mount (`deploy.bao.agentPkiMountPath`), which generates the key, at `swarm-controller`'s request at agent creation | `hive-c0re`, under the hive's own certificate, when it writes the agent's container config | ✅ `swarm-controller`'s five-minute pass re-issues a live agent's leaf once it's past half its validity (45 of 90 days, read from the certificate itself) | ❌ `hive-c0re` reads it when it writes the container config, so the agent presents a new leaf from its next start; the old leaf stays valid until it expires |
| `swarm/agents/<agent>/queue` | `swarm-controller`, at agent creation | `hive-agent` in the agent container, under the agent's own certificate, held in memory — the identity it presents to the swarm queue, naming that one agent rather than its hive | ✅ `swarm-controller`'s five-minute pass re-mints a live agent's secret once it's 45 days old by `minted_at` on the stored object; a secret with no `minted_at` gets one stamped, value unchanged. The pass skips agents declared `Destroyed` — declaring an agent destroyed deletes every version of the path instead, the undo of the mint rather than another one | ✅ `hive-agent` reads the path before its first connect and again on every reconnect attempt, so a reconnect after a re-mint presents the new secret. An open connection keeps the secret it connected with; after a revocation the agent keeps retrying under the queue client's backoff |
| `swarm/agents/<agent>/forge-token` | `swarm-controller`, at agent creation and in a pass every 5 minutes over every agent with a store identity | the agent container itself, under its own certificate, fetched to `/run/hive-agent-forge-token/token` | ✅ the controller re-mints when the stored token is missing or no longer matches the forge (last eight characters and scopes) | ✅ the agent re-fetches on a 10-minute timer |
| `swarm/agents/<agent>/forge/<label>` | `swarm-controller`, when an operator links an external forge account in the swarm UI | `hive-agent-forge-accounts` in the agent container, under the agent's own certificate, into `<state>/forge-<label>-token` and `forge-<label>.json` | ❌ an operator's token; replaced only by deleting it and linking the label again | ✅ the agent re-fetches on a 2-minute timer |
| `swarm/agents/<agent>/github-token` | `swarm-controller`, when an operator links a GitHub account in the swarm UI | `hive-agent-github-token` in the agent container, under the agent's own certificate, into `<state>/github-token` | ❌ an operator's token; replaced only by deleting it and linking it again | ✅ the agent re-fetches on a 2-minute timer |
| `swarm/hives/<hive>/matrix/sender-token` | `swarm-controller`, with the swarm's appservice token, for every hive in its directory in a five-minute pass | `swarm-controller` under its own certificate, before it decides whether to mint, and hive-c0re's `stored_sender_token()`, under the hive's own certificate | ✅ the controller's pass re-mints when the stored token is missing, unknown to the homeserver, or someone else's | ✅ hive-c0re's matrix sweep reads the store every run and overwrites its token file when the store's token differs |
| `swarm/hives/<hive>/queue/agent` | authelia | `swarm-bao-queue-agent` on the hive's host, under its own per-hive certificate; no agent's policy reaches it | must be stated | must be stated |
| `swarm/services/<clientId>/oidc/client` | authelia | that service's own reader, under its own certificate — the queue responder's under `swarm-nats-auth`'s, the homeserver's under `swarm-matrix-ctl`'s; the bao UI's by the store's granter | must be stated | must be stated |
| `swarm/services/ci-runner/registration-token` | `swarm-controller`, from the forge's admin API, at start and in a five-minute pass; its grant on the path is write-only | `swarm-bao-ci-runner` on the runner's host, under the runner's own certificate, into a file only `swarm-ci-runner-register` in the runner's container loads; no other principal's policy reads it | ❌ the forge hands out one token until an admin resets it; the controller writes a reset token within five minutes | ❌ `swarm-bao-ci-runner` reads it when it starts, at boot or deploy, and restarts the runner when the value changed |
| _(not in the store)_ a hive's mTLS leaf | the store's own PKI, or an operator placing it by hand | its own client, off disk — the exception above, because it's what makes every other row's pull possible | must be stated | must be stated |
<!-- vale write-good.Passive = YES -->