mirror of
https://gitea.com/gitea/act_runner.git
synced 2026-07-22 20:47:45 +00:00
c43cbe87ca
Opt-in local task-admission checks under a `health_check` config section (disabled by default): - pause new task fetching when free disk space on the workspace volume is below the configured minimum - optional executable health-check script — a non-zero exit, timeout, or start failure marks the runner unavailable - checks run only while the runner is idle; the last result is reused while a job is active, and polling resumes automatically on recovery - `/readyz` reports task-admission readiness (reusing the poll loop's last check); `/healthz` stays a process-liveness endpoint --------- Co-authored-by: silverwind <me@silverwind.io> Reviewed-on: https://gitea.com/gitea/runner/pulls/1090 Reviewed-by: silverwind <2021+silverwind@noreply.gitea.com>
66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package metrics
|
|
|
|
import (
|
|
"context"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// StartServer starts an HTTP server that serves Prometheus metrics on /metrics
|
|
// and health checks. The server shuts down when ctx is cancelled.
|
|
// Call Init() before StartServer to register metrics with the Registry.
|
|
func StartServer(ctx context.Context, addr string, readiness func() (bool, string)) {
|
|
srv := &http.Server{
|
|
Addr: addr,
|
|
Handler: NewHTTPHandler(readiness),
|
|
ReadHeaderTimeout: 5 * time.Second,
|
|
ReadTimeout: 10 * time.Second,
|
|
WriteTimeout: 10 * time.Second,
|
|
IdleTimeout: 60 * time.Second,
|
|
}
|
|
|
|
go func() {
|
|
log.Infof("metrics server listening on %s", addr)
|
|
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
|
|
log.WithError(err).Error("metrics server failed")
|
|
}
|
|
}()
|
|
|
|
go func() {
|
|
<-ctx.Done()
|
|
shutCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
|
defer cancel()
|
|
if err := srv.Shutdown(shutCtx); err != nil {
|
|
log.WithError(err).Warn("metrics server shutdown error")
|
|
}
|
|
}()
|
|
}
|
|
|
|
// NewHTTPHandler returns the metrics and health endpoints used by StartServer.
|
|
func NewHTTPHandler(readiness func() (bool, string)) http.Handler {
|
|
mux := http.NewServeMux()
|
|
mux.Handle("/metrics", promhttp.HandlerFor(Registry, promhttp.HandlerOpts{}))
|
|
mux.HandleFunc("/healthz", func(w http.ResponseWriter, _ *http.Request) {
|
|
w.WriteHeader(http.StatusOK)
|
|
_, _ = w.Write([]byte("ok"))
|
|
})
|
|
mux.HandleFunc("/readyz", func(w http.ResponseWriter, _ *http.Request) {
|
|
ready, reason := true, "ok"
|
|
if readiness != nil {
|
|
ready, reason = readiness()
|
|
}
|
|
if !ready {
|
|
w.WriteHeader(http.StatusServiceUnavailable)
|
|
}
|
|
_, _ = w.Write([]byte(reason))
|
|
})
|
|
|
|
return mux
|
|
}
|