Files
cairnobs/cli/README.md
T
jcoffey-dev 9435115ab7 Phase 3: dashboards and alerting
Saved, shareable multi-panel dashboards (table/line/bar/single-stat
panels via gridstack + uPlot, global + per-panel time range, JSON
export/import) and threshold/absence alert rules with an
ok/pending/firing evaluator and webhook/Slack/PagerDuty delivery.

- New /metadata component: Postgres control-plane store for dashboards,
  panels, notification targets, alert rules/state, and delivery log --
  see docs/phase-3-dashboard-design.md for why ClickHouse's MergeTree
  family isn't a fit for this access pattern (needs real row-level
  locking and read-your-writes consistency).
- api/internal/dashboards: dashboard/panel CRUD, pure -- panel query
  execution stays client-side, reusing the existing /query endpoint.
- New /alerting service: rule/target CRUD, a ticker-driven evaluator
  (claim-then-evaluate concurrency control, transactional-outbox
  delivery, query errors and threshold zero-rows never coerced into a
  false transition) and webhook/Slack/PagerDuty delivery with
  retry/backoff. See docs/phase-3-alerting-design.md for the full
  state-machine design and the four correctness properties it
  implements.
- web: /dashboards and /alerts UIs; cli: sentryctl dashboards/alerts
  list/get/apply, seeding a future Terraform provider's JSON contract.
- hack/alert-load-test: 500 rules against real ClickHouse data, real
  measured results in docs/phase-3-runbook.md.

Five real bugs found by actually running this against a live stack
(documented in the runbook, not just fixed silently): a latent Phase 2
bug where ClickHouse rejected the timestamp format used for
earliest=/latest= queries; a "now" literal token injected into query
text; a GridStack/uPlot layout-timing race; JS's Date.parse being too
lenient to use as a timestamp-detection heuristic; a rule's "enabled"
field silently defaulting to false when omitted; and the evaluator's
claim-batch-size and worker-pool-concurrency defaulting to the same
value, causing 500 concurrently-due rules to take 125s to cycle through
instead of the configured 60s.
2026-08-13 17:29:38 -07:00

2.7 KiB

sentryctl

Sentry's control CLI.

sentryctl ping                              # checks http://localhost:8080/healthz
sentryctl ping --api http://api.internal:8080
SENTRYCTL_API_URL=http://api.internal:8080 sentryctl ping

Exits 0 and prints ok if /api's /healthz responds 200; exits 1 with an error on stderr otherwise.

sentryctl query 'service=api | where status>=500 | stats count by host'
sentryctl query 'SELECT * FROM logs LIMIT 10' --language sql
sentryctl query 'message:"connection refused"' --json

Quote the query in your shell — pipe syntax uses |, which your shell interprets as an actual pipe if you don't. Hits the exact same POST /query endpoint the web UI does (internal/querylang in /api does the compiling; there's no separate query logic here to drift out of sync — see /docs/query-language-reference.md). --language overrides auto-detection, same optional override the HTTP API itself exposes. Prints a table by default (stdlib text/tabwriter, no new dependency); --json prints the raw {columns, rows} response instead.

sentryctl dashboards list
sentryctl dashboards get <id>
sentryctl dashboards apply dashboard.json    # imports a dashboard exported via the web UI's "Export JSON" button

sentryctl alerts list
sentryctl alerts get <id>
sentryctl alerts apply rule.json             # creates a rule from a JSON file shaped like POST /rules's body

dashboards talks to /api (--api, same override as query/ping). alerts talks to /alerting, a separate service with its own base URL (--alerting-api, or $SENTRYCTL_ALERTING_API_URL, default http://localhost:8081) — see /docs/phase-3-alerting-design.md's component boundary for why alerting isn't just another /api route. apply in both cases sends the file's JSON as-is to the corresponding create/import endpoint — no reshaping, since the file's shape already matches what the endpoint expects (the same JSON the web UI's export button downloads, or the same shape GET /rules/{id} returns). This is deliberately the seed of a future Terraform provider: one JSON contract, multiple callers (web export, CLI apply, eventually a provider), not three different formats to keep in sync.

No CLI framework (cobra/urfave-cli/etc.) — six commands split across a few files (cmd_ping.go, cmd_query.go, cmd_dashboards.go, cmd_alerts.go) is still boring enough not to need one; stdlib os.Args handling plus a hand-rolled switch in main.go covers it. Revisit once there's a real command tree (nested subcommands, nontrivial flag parsing) to justify a dependency.

Building & testing

go build ./...
go vet ./...
go test ./...
docker build -f Dockerfile -t sentryctl .   # context is cli/, not the repo root