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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package healthz | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "net/http" | ||
|
|
||
| "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
||
| type ProxyClient interface { | ||
| IsAlive() bool | ||
| } | ||
|
|
||
| type Server struct { | ||
| log *logrus.Logger | ||
| proxyClient ProxyClient | ||
| } | ||
|
|
||
| func NewServer(log *logrus.Logger, proxyClient ProxyClient) *Server { | ||
| return &Server{ | ||
| log: log, | ||
| proxyClient: proxyClient, | ||
| } | ||
| } | ||
|
|
||
| func (hc *Server) Run(addr string) error { | ||
| mux := http.NewServeMux() | ||
|
|
||
| mux.HandleFunc("/healthz", hc.healthCheck) | ||
|
|
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| return http.ListenAndServe(addr, mux) | ||
| } | ||
|
|
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| func (hc *Server) healthCheck(w http.ResponseWriter, r *http.Request) { | ||
| status := true | ||
| response := make(map[string]string) | ||
|
|
||
| if hc.proxyClient.IsAlive() { | ||
| response["proxyClient"] = "alive" | ||
| } else { | ||
| response["proxyClient"] = "not alive" | ||
| status = false | ||
| } | ||
|
|
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| w.Header().Set("content-type", "application/json") | ||
|
|
||
| body, err := json.Marshal(response) | ||
| if err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to marshal readiness check response") | ||
| w.WriteHeader(http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| if status { | ||
| w.WriteHeader(http.StatusOK) | ||
| } else { | ||
| w.WriteHeader(http.StatusServiceUnavailable) | ||
| } | ||
|
|
||
| if _, err := w.Write(body); err != nil { | ||
| hc.log.WithError(err).Errorf("Failed to write response body") | ||
| } | ||
| } |
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