Add flag to allow setting a shutdown grace period

test/e2e/framework/healthz.go

@@ -0,0 +1,44 @@
+/*
+Copyright 2020 The Kubernetes 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 framework
+
+import (
+	"fmt"
+	"net/http"
+)
+
+// VerifyHealthz verifies the status code of the healthz endpoint
+func (f *Framework) VerifyHealthz(ip string, statusCode int) error {
+	url := fmt.Sprintf("http://%v:10254/healthz", ip)
+
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return fmt.Errorf("creating GET request for URL %q failed: %v", url, err)
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("executing GET request for URL %q failed: %v", url, err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != statusCode {
+		return fmt.Errorf("GET request for URL %q returned HTTP status %s", url, resp.Status)
+	}
+
+	return nil
+}