// RecoverPanics wraps an http Handler to recover and log panics.
func RecoverPanics(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
defer func() {
if x := recover(); x != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprint(w, "apis panic. Look in log for details.")
glog.Infof("APIServer panic'd on %v %v: %v\n%s\n", req.Method, req.RequestURI, x, debug.Stack())
}
}()
defer httplog.NewLogged(req, &w).StacktraceWhen(
httplog.StatusIsNot(
http.StatusOK,
http.StatusCreated,
http.StatusAccepted,
http.StatusMovedPermanently,
http.StatusTemporaryRedirect,
http.StatusConflict,
http.StatusNotFound,
StatusUnprocessableEntity,
),
).Log()
// Dispatch to the internal handler
handler.ServeHTTP(w, req)
})
}
// ServeHTTP responds to HTTP requests on the Kubelet
func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
defer httplog.NewLogged(req, &w).StacktraceWhen(
httplog.StatusIsNot(
http.StatusOK,
http.StatusNotFound,
),
).Log()
s.mux.ServeHTTP(w, req)
}
// ServeHTTP responds to HTTP requests on the Kubelet.
func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
defer httplog.NewLogged(req, &w).StacktraceWhen(
httplog.StatusIsNot(
http.StatusOK,
http.StatusMovedPermanently,
http.StatusTemporaryRedirect,
http.StatusNotFound,
),
).Log()
s.mux.ServeHTTP(w, req)
}
// HTTP Handler interface
func (server *APIServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
defer func() {
if x := recover(); x != nil {
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprint(w, "apiserver panic. Look in log for details.")
glog.Infof("APIServer panic'd on %v %v: %#v\n%s\n", req.Method, req.RequestURI, x, debug.Stack())
}
}()
defer httplog.MakeLogged(req, &w).StacktraceWhen(
httplog.StatusIsNot(
http.StatusOK,
http.StatusAccepted,
http.StatusConflict,
),
).Log()
// Dispatch via our mux.
server.mux.ServeHTTP(w, req)
}
func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
defer httplog.MakeLogged(req, &w).StacktraceWhen(
httplog.StatusIsNot(
http.StatusOK,
http.StatusNotFound,
),
).Log()
u, err := url.ParseRequestURI(req.RequestURI)
if err != nil {
s.error(w, err)
return
}
// TODO: use an http.ServeMux instead of a switch.
switch {
case u.Path == "/container" || u.Path == "/containers":
defer req.Body.Close()
data, err := ioutil.ReadAll(req.Body)
if err != nil {
s.error(w, err)
return
}
if u.Path == "/container" {
// This is to provide backward compatibility. It only supports a single manifest
var pod Pod
err = yaml.Unmarshal(data, &pod.Manifest)
if err != nil {
s.error(w, err)
return
}
//TODO: sha1 of manifest?
pod.Name = "1"
s.updates <- PodUpdate{[]Pod{pod}, SET}
} else if u.Path == "/containers" {
var manifests []api.ContainerManifest
err = yaml.Unmarshal(data, &manifests)
if err != nil {
s.error(w, err)
return
}
pods := make([]Pod, len(manifests))
for i := range manifests {
pods[i].Name = fmt.Sprintf("%d", i+1)
pods[i].Manifest = manifests[i]
}
s.updates <- PodUpdate{pods, SET}
}
case u.Path == "/podInfo":
podID := u.Query().Get("podID")
if len(podID) == 0 {
w.WriteHeader(http.StatusBadRequest)
http.Error(w, "Missing 'podID=' query entry.", http.StatusBadRequest)
return
}
// TODO: backwards compatibility with existing API, needs API change
podFullName := GetPodFullName(&Pod{Name: podID, Namespace: "etcd"})
info, err := s.host.GetPodInfo(podFullName)
if err == ErrNoContainersInPod {
http.Error(w, "Pod does not exist", http.StatusNotFound)
return
}
if err != nil {
s.error(w, err)
return
}
data, err := json.Marshal(info)
if err != nil {
s.error(w, err)
return
}
w.WriteHeader(http.StatusOK)
w.Header().Add("Content-type", "application/json")
w.Write(data)
case strings.HasPrefix(u.Path, "/stats"):
s.serveStats(w, req)
case strings.HasPrefix(u.Path, "/spec"):
info, err := s.host.GetMachineInfo()
if err != nil {
s.error(w, err)
return
}
data, err := json.Marshal(info)
if err != nil {
s.error(w, err)
return
}
w.Header().Add("Content-type", "application/json")
w.Write(data)
case strings.HasPrefix(u.Path, "/logs/"):
s.host.ServeLogs(w, req)
default:
if s.handler != nil {
s.handler.ServeHTTP(w, req)
}
}
}