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swarm UI: an alerts page, read by the controller with a Viewer Grafana token from bao

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swarm-bao-grafana-controller-token, on the host that runs Grafana, logs in
to Grafana's API over its socket as the built-in admin (the password
swarm-bao-grafana-admin minted, #5138) and keeps a `swarm-controller`
service account that is an enabled Viewer. It mints a token for that
account and writes it to bao at
swarm/controller/swarm-controller/grafana/token under Grafana's leaf. A
ten-minute timer runs it again. The unit keeps a stored token Grafana
accepts. If Grafana refuses the stored token with 401, or bao holds
none, the unit deletes every token of the account and mints a new one.
Grafana's grant gains create/read/update on that leaf, and the
controller's gains read.

swarm-controller serves GET /api/alerts from Grafana's
/api/prometheus/grafana/api/v1/alerts. It reads the token from bao,
keeps it in memory, and re-reads bao once on a 401. The HTTP client has
5s connect and 15s request timeouts. Any failure is a 503 that names its
cause. swarm-ui gets an /alerts page listing them, built the same way as
the hives page.

This is option (c) on #5129, the operator's choice.
This commit is contained in:
atlas 2026-10-15 12:26:06 +02:00 • committed by mara
commit 7d09776742
23 changed files with 888 additions and 37 deletions
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9
swarm-secret-client/src/lib.rs
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@ -5,10 +5,10 @@
//! the rules every path obeys ([`path`]), the translation from this
//! deployment's environment into a logged-in client ([`client`]), and, per kind
//! of secret, the path it lives at together with the fields it holds
//! ([`matrix`], [`queue`], [`mtls`], [`forge`], [`github`], [`acp`], [`ci`],
//! [`review_classifier`], [`builder`], [`claude_login`]). Each of those is a
//! thing the controller and a hive must say identically, so it is said once
//! here.
//! ([`matrix`], [`queue`], [`mtls`], [`forge`], [`github`], [`grafana`],
//! [`acp`], [`ci`], [`review_classifier`], [`builder`], [`claude_login`]).
//! Each of those is a thing the controller and a hive must say identically, so
//! it is said once here.
//!
//! [`policy`] is the same kind of agreement seen from the other side: which of
//! those paths a given principal's own token may read — a hive's, and an
@ -31,6 +31,7 @@ pub mod claude_login;
pub mod client;
pub mod forge;
pub mod github;
pub mod grafana;
pub mod matrix;
pub mod mtls;
pub mod path;