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KUBE-554: add healthcheck endpoint (#12)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package healthz | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "net/http" | ||
|
|
||
| "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
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| type Server struct { | ||
| log *logrus.Logger | ||
| } | ||
|
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| func NewServer(log *logrus.Logger) *Server { | ||
| return &Server{ | ||
| log: log, | ||
| } | ||
| } | ||
|
|
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| func (hc *Server) Run(addr string) error { | ||
| mux := http.NewServeMux() | ||
|
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| mux.HandleFunc("/readyz", hc.readyCheck) | ||
| mux.HandleFunc("/livez", hc.liveCheck) | ||
|
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| return http.ListenAndServe(addr, mux) | ||
| } | ||
|
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| func (hc *Server) readyCheck(w http.ResponseWriter, r *http.Request) { | ||
| w.Header().Set("content-type", "application/json") | ||
|
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| // TODO: Implement proper readiness checks. | ||
|
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| response := map[string]string{ | ||
| "status": "ok", | ||
| } | ||
|
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| body, err := json.Marshal(response) | ||
| if err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to marshal readiness check response") | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
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| w.WriteHeader(http.StatusOK) | ||
|
|
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| if _, err := w.Write(body); err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to write response body") | ||
| } | ||
| } | ||
|
|
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| func (hc *Server) liveCheck(w http.ResponseWriter, r *http.Request) { | ||
| w.Header().Set("content-type", "application/json") | ||
|
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| // TODO: Implement proper liveness checks. | ||
|
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| response := map[string]string{ | ||
| "status": "ok", | ||
| } | ||
|
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| body, err := json.Marshal(response) | ||
| if err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to marshal readiness check response") | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
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| w.WriteHeader(http.StatusOK) | ||
|
|
||
| if _, err := w.Write(body); err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to write response body") | ||
| } | ||
| } |
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