package main
<p>import (
"net/http"
"encoding/json"
)</p><p>func healthHandler(w http.ResponseWriter, r *http.Request) {
// 简单健康检查：仅返回200
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]string{"status": "ok"})
}</p><p>func main() {
http.HandleFunc("/health", healthHandler)
http.ListenAndServe(":8080", nil)
}</p>

func healthHandler(w http.ResponseWriter, r *http.Request) {
    ctx, cancel := context.WithTimeout(r.Context(), 2*time.Second)
    defer cancel()
<pre class='brush:php;toolbar:false;'>if err := db.PingContext(ctx); err != nil {
    http.Error(w, "database unreachable", http.StatusServiceUn*ailable)
    return
}

w.WriteHeader(http.StatusOK)
json.NewEncoder(w).Encode(map[string]string{"status": "healthy", "db": "connected"})

}

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget -qO- http://localhost:8080/health || exit 1

HEALTHCHECK CMD curl -f http://localhost:8080/health || exit 1

livenessProbe:
  httpGet:
    path: /health
    port: 8080
  initialDelaySeconds: 10
  periodSeconds: 30
  timeoutSeconds: 3
  failureThreshold: 3
<p>readinessProbe:
httpGet:
path: /health
port: 8080
initialDelaySeconds: 5
periodSeconds: 10</p>