logs rows carry a real per-record `service` (nginx, smtp, ufw, ...) -- already true of the schema (storage/migrations/0001) and wire protocol, not something this feature invents. Both the deletion picker and the retention floor now operate on (host, service) pairs instead of whole hosts, so an operator can delete just one noisy log type from an agent without touching everything else it ships, and can protect one service (e.g. keep smtp a year) longer than the rest of that host's default. api/agents.ConfigOverride gains ServiceLogRetentionDays (map[string]int), owner-only to change like LogRetentionDays -- a service listed there overrides the host's LogRetentionDays default for that service only. Agent config page gets a matching "Per-service log retention overrides" add/remove list next to the existing host-level field. api/logretention: Store's count/delete now take []HostService and build a ClickHouse tuple IN ((?,?),...) over (host, service); AgentRetentionStore. FloorsByHost returns each host's default plus its per-service map, with HostFloor.Effective(service) resolving which one applies. preview/delete moved from GET/DELETE-with-query-params to POST-with-JSON-body (a list of targets needs a real body, not a repeated compound query param), and partitionTargets checks the floor per target so one protected service never blocks deleting a different, unprotected one in the same request. Settings' Log retention section is a two-level picker now: each host row (with a "select all services" checkbox and its default floor badge) expands to its services, each with its own count and effective protected-days badge. Verified live against real ClickHouse/Postgres and in-browser: a host with a 7-day default plus a 365-day smtp override -- deleting nginx+ smtp+ufw together correctly removed nginx and ufw, left smtp's 10 records untouched, and confirmed via a follow-up owner delete that bypassing the floor works. Also verified the full click-through (add a service override on the agent page, see it reflected in Settings' picker, select/preview/cancel) and confirmed no regression from the prior host-only version's tests.
api
Sentry's query API: a single POST /query endpoint accepting either the
pipe syntax or raw SQL, compiled and routed across ClickHouse and Tantivy
by internal/querylang. Replaces Phase 0/1's two separate placeholder
endpoints (raw-SQL-only /query, free-text-only /search) — see
/docs/query-language-design.md for the grammar, IR, and routing design,
and /docs/query-language-reference.md for the user-facing syntax.
Why plain REST, not gRPC + REST gateway
CLAUDE.md pins the control plane to "Go, gRPC + REST gateway." This
service is plain net/http instead — a deliberate simplification, not a
change to the pinned stack. Wiring up a .proto service,
google.api.http annotations, and protoc-gen-grpc-gateway codegen for
one endpoint doesn't buy much at this size. api does speak gRPC
internally — to /search — this simplification is about the
public-facing surface only.
Endpoint
POST /query — body {"query": "...", "language": ""}, response
{"columns": [...], "rows": [[...], ...]} or {"error": "..."}.
queryis either pipe syntax (service=api | where status>=500 | stats count by host) or raw SQL (SELECT ...). Auto-detected by whether the query starts withSELECT(case-insensitive).languageoptionally overrides detection:"sql"or"spl". Exists for the rare case a pipe query legitimately starts with the literal word "select" as a bare search term.- Both syntaxes compile to the same
querylang/ir.Planand execute through the same code path — seeinternal/querylang/executorfor the four routing cases (pure ClickHouse; Tantivy prefilter + ClickHouse rows; Tantivy prefilter + ClickHouse aggregation; raw SQL passthrough).
GET /healthz — for docker-compose/k8s liveness checks.
No auth. Not scoped yet — don't expose this beyond a trusted dev/homelab network.
Configuration
Environment variables (see internal/config/config.go):
| Var | Default | Purpose |
|---|---|---|
HTTP_LISTEN_ADDR |
:8080 |
|
CLICKHOUSE_ADDR |
localhost:9000 |
Native protocol port |
CLICKHOUSE_DATABASE / _USERNAME / _PASSWORD |
sentry / default / `` |
|
SEARCH_GRPC_ADDR |
localhost:50052 |
Must match /search's GRPC_LISTEN_ADDR |
QUERY_TIMEOUT_SECONDS |
30 |
Per-request timeout |
CORS_ALLOWED_ORIGIN |
* |
Wide open by default since there's no auth yet; tighten together |
searchclient.Dial connects to /search over plain TCP, no TLS — same
trust boundary as api's existing plain-TCP connection to ClickHouse.
mTLS in this project is specifically the agent↔ingest edge boundary, not
every internal hop.
Building & testing
go build ./...
go vet ./...
go test ./...
# from the repo root, not api/
docker build -f api/Dockerfile -t sentry-api .
Testing notes
internal/queryapi's HTTP handler depends on ClickHouse and /search
only through the narrow interfaces querylang/executor defines
(SQLRunner, SearchClient), so routing, compilation, JSON encoding,
and error-status mapping are all unit-tested against fakes — no live
ClickHouse or /search instance needed, and the real lexer/parser/
planner run unmocked in these tests, only the backends are faked. See
internal/querylang's own package docs for how compilation and
execution are tested independently of each other. executor.ChRunner
(the reflection-based row scanning against ClickHouse's driver.Rows)
and internal/searchclient's actual gRPC dial are not unit-tested — the
former because faking driver.Rows fully would be significant
test-only scaffolding the driver's own docs say isn't meant to be
implemented by adopters; the latter because it's a thin wrapper with
nothing but wiring to test. Both are exercised end-to-end via the
docker-compose flow in /docs/phase-2-runbook.md.