added version endpoint

pkg/server/handlers.go

@@ -6,6 +6,7 @@ import (
 	"sync/atomic"
 
 	"github.com/golang/glog"
+	"github.com/stefanprodan/k8s-podinfo/pkg/version"
 	"gopkg.in/yaml.v2"
 )
 
@@ -52,6 +53,30 @@ func (s *Server) echo(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func (s *Server) version(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path != "/version" {
+		w.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	resp := map[string]string{
+		"version": version.VERSION,
+		"commit":  version.GITCOMMIT,
+	}
+
+	d, err := yaml.Marshal(resp)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/x-yaml; charset=utf-8")
+	w.Header().Set("X-Content-Type-Options", "nosniff")
+	w.WriteHeader(http.StatusOK)
+	w.Write(d)
+}
+
 func (s *Server) healthz(w http.ResponseWriter, r *http.Request) {
 	if atomic.LoadInt32(&healthy) == 1 {
 		w.WriteHeader(http.StatusOK)

pkg/server/server.go

@@ -34,6 +34,7 @@ func NewServer(options ...func(*Server)) *Server {
 	s.mux.HandleFunc("/readyz/disable", s.disable)
 	s.mux.HandleFunc("/echo", s.echo)
 	s.mux.HandleFunc("/panic", s.panic)
+	s.mux.HandleFunc("/version", s.version)
 	s.mux.Handle("/metrics", promhttp.Handler())
 
 	return s