Switch from ThirdPartyResources to CustomResourceDefinitions (#381)

Switch Fission's storage over to the new CustomResourceDefinitions, from the deprecated ThirdPartyResources. This allows us to be compatible with Kubernets 1.8 and onwards.

This also adds a CLI tool for dumping state from an old fission version and restoring state into new CRDs.

The storage service is unaffected by this change.

controller/tpr2crdApi.go

@@ -0,0 +1,64 @@
+/*
+Copyright 2017 The Fission Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package controller
+
+import (
+	"net/http"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	"github.com/fission/fission/crd"
+)
+
+func (a *API) Tpr2crdApi(w http.ResponseWriter, r *http.Request) {
+	_, kubeClient, _, err := crd.MakeFissionClient()
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	fissionTprs := []string{
+		"function.fission.io",
+		"environment.fission.io",
+		"httptrigger.fission.io",
+		"kuberneteswatchtrigger.fission.io",
+		"timetrigger.fission.io",
+		"messagequeuetrigger.fission.io",
+		"package.fission.io",
+	}
+
+	tprList, err := kubeClient.ThirdPartyResources().List(metav1.ListOptions{})
+	if err != nil {
+		a.respondWithError(w, err)
+		return
+	}
+
+	for _, tpr := range tprList.Items {
+		for _, tprName := range fissionTprs {
+			if tpr.Name == tprName {
+				err := kubeClient.ThirdPartyResources().Delete(tpr.Name, &metav1.DeleteOptions{})
+				if err != nil {
+					a.respondWithError(w, err)
+					return
+				}
+				break
+			}
+		}
+	}
+
+	a.respondWithSuccess(w, nil)
+}