Add error to GetSession return values

- Add button to copy instance SSH access

handlers/bootstrap.go

@@ -19,6 +19,7 @@ import (
 	"github.com/play-with-docker/play-with-docker/config"
 	"github.com/play-with-docker/play-with-docker/event"
 	"github.com/play-with-docker/play-with-docker/pwd"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/urfave/negroni"
 )
@@ -27,8 +28,19 @@ var core pwd.PWDApi
 var e event.EventApi
 var landings = map[string][]byte{}
 
+var latencyHistogramVec = prometheus.NewHistogramVec(prometheus.HistogramOpts{
+	Name:    "pwd_handlers_duration_ms",
+	Help:    "How long it took to process a specific handler, in a specific host",
+	Buckets: []float64{300, 1200, 5000},
+}, []string{"action"})
+
 type HandlerExtender func(h *mux.Router)
 
+func init() {
+	prometheus.MustRegister(latencyHistogramVec)
+
+}
+
 func Bootstrap(c pwd.PWDApi, ev event.EventApi) {
 	core = c
 	e = ev
@@ -53,6 +65,10 @@ func Register(extend HandlerExtender) {
 	corsRouter.HandleFunc("/sessions/{sessionId}/instances/{instanceName}", DeleteInstance).Methods("DELETE")
 	corsRouter.HandleFunc("/sessions/{sessionId}/instances/{instanceName}/exec", Exec).Methods("POST")
 
+	r.HandleFunc("/sessions/{sessionId}/instances/{instanceName}/editor.html", func(rw http.ResponseWriter, r *http.Request) {
+		http.ServeFile(rw, r, "www/editor.html")
+	})
+
 	r.HandleFunc("/ooc", func(rw http.ResponseWriter, r *http.Request) {
 		http.ServeFile(rw, r, "./www/ooc.html")
 	}).Methods("GET")
@@ -64,9 +80,6 @@ func Register(extend HandlerExtender) {
 	r.HandleFunc("/robots.txt", func(rw http.ResponseWriter, r *http.Request) {
 		http.ServeFile(rw, r, "www/robots.txt")
 	})
-	r.HandleFunc("/sdk.js", func(rw http.ResponseWriter, r *http.Request) {
-		http.ServeFile(rw, r, "www/sdk.js")
-	})
 
 	corsRouter.HandleFunc("/sessions/{sessionId}/ws/", WSH)
 	r.Handle("/metrics", promhttp.Handler())
@@ -90,6 +103,7 @@ func Register(extend HandlerExtender) {
 	}
 
 	n := negroni.Classic()
+
 	r.PathPrefix("/").Handler(negroni.New(negroni.Wrap(corsHandler(corsRouter))))
 	n.UseHandler(r)
 
@@ -128,7 +142,11 @@ func Register(extend HandlerExtender) {
 			rr.HandleFunc("/ping", Ping).Methods("GET")
 			rr.Handle("/metrics", promhttp.Handler())
 			rr.HandleFunc("/", func(rw http.ResponseWriter, r *http.Request) {
-				http.Redirect(rw, r, fmt.Sprintf("https://%s", r.Host), http.StatusMovedPermanently)
+				target := fmt.Sprintf("https://%s%s", r.Host, r.URL.Path)
+				if len(r.URL.RawQuery) > 0 {
+					target += "?" + r.URL.RawQuery
+				}
+				http.Redirect(rw, r, target, http.StatusMovedPermanently)
 			})
 			nr := negroni.Classic()
 			nr.UseHandler(rr)