rename a existing container

Closes #3036

Signed-off-by: Srini Brahmaroutu <srbrahma@us.ibm.com>

api/server/server.go

@@ -739,6 +739,24 @@ func postContainersRestart(eng *engine.Engine, version version.Version, w http.R
 	return nil
 }
 
+func postContainerRename(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
+	if err := parseForm(r); err != nil {
+		return err
+	}
+	if vars == nil {
+		return fmt.Errorf("Missing parameter")
+	}
+
+	newName := r.URL.Query().Get("name")
+	job := eng.Job("container_rename", vars["name"], newName)
+	job.Setenv("t", r.Form.Get("t"))
+	if err := job.Run(); err != nil {
+		return err
+	}
+	w.WriteHeader(http.StatusNoContent)
+	return nil
+}
+
 func deleteContainers(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
 	if err := parseForm(r); err != nil {
 		return err
@@ -1311,6 +1329,7 @@ func createRouter(eng *engine.Engine, logging, enableCors bool, dockerVersion st
 			"/containers/{name:.*}/exec":    postContainerExecCreate,
 			"/exec/{name:.*}/start":         postContainerExecStart,
 			"/exec/{name:.*}/resize":        postContainerExecResize,
+			"/containers/{name:.*}/rename":  postContainerRename,
 		},
 		"DELETE": {
 			"/containers/{name:.*}": deleteContainers,