Update happyDomain to the new checker-sdk-go reporter contract, where
CheckerHTMLReporter.GetHTMLReport and CheckerMetricsReporter.ExtractMetrics
take a ReportContext instead of a raw json.RawMessage. The ReportContext
will later carry cross-checker related observations; for now every call
site wraps the raw payload via sdk.StaticReportContext, so behavior is
unchanged.
Also re-export the new discovery-related SDK types (DiscoveryEntry,
DiscoveryPublisher, RelatedObservation, ReportContext,
AutoFillDiscoveryEntries) as aliases under happydns, and satisfy the
extended ObservationGetter interface on ObservationContext and the
test stub with a no-op GetRelated.
No new behavior: plumbing for the upcoming discovery pipeline.
- Add HTTP metrics middleware to public router in setupRouter()
- Wrap storage with InstrumentedStorage after initialization
- Set build info metric from main() with actual version string
- Promote prometheus/client_golang to direct dependency
Wire UserQuota.MaxChecksPerDay field into the scheduler via the
UserGater: an in-memory daily counter per user
(reset at UTC midnight): gates scheduled executions, with a two-tier
heuristic that skips short-interval jobs first once the budget is 80%
consumed so rare/important checks are not starved by frequent
pings. Planned executions returned by ListPlannedExecutions are marked
with a new ExecutionRateLimited status when the user is over
budget. Manual API triggers bypass the quota.
Implement the checker business logic:
- CheckerOptionsUsecase: scope-based option resolution, validation,
auto-fill from execution context (domain, zone, service)
- CheckPlanUsecase: CRUD for user scheduling configurations
- CheckStatusUsecase: aggregated status queries, execution history
- CheckerEngine: full execution pipeline (observe, evaluate, aggregate)
- Scheduler: background job executor with auto-discovery, min-heap
queue, worker pool, and jitter-based scheduling
Scan -plugins-directory paths at startup, open each .so via plugin.Open,
look up the NewCheckerPlugin symbol from checker-sdk-go, and register the
returned definition and observation provider in the global checker
registries. A pluginLoader indirection keeps the door open for future
plugin kinds.
