64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// A simple pod that first lists all nodes/services through the Kubernetes
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// api, then serves a 200 on /healthz.
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package main
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import (
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"log"
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"fmt"
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"net/http"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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restclient "k8s.io/client-go/rest"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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)
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func main() {
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cc, err := restclient.InClusterConfig()
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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kubeClient, err := clientset.NewForConfig(cc)
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if err != nil {
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log.Fatalf("Failed to create client: %v", err)
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}
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listAll := metav1.ListOptions{}
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nodes, err := kubeClient.Core().Nodes().List(listAll)
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if err != nil {
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log.Fatalf("Failed to list nodes: %v", err)
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}
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log.Printf("Nodes:")
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for _, node := range nodes.Items {
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log.Printf("\t%v", node.Name)
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}
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services, err := kubeClient.Core().Services(metav1.NamespaceDefault).List(listAll)
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if err != nil {
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log.Fatalf("Failed to list services: %v", err)
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}
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log.Printf("Services:")
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for _, svc := range services.Items {
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log.Printf("\t%v", svc.Name)
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}
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log.Printf("Success")
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http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, "Ok")
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})
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log.Fatal(http.ListenAndServe(":8080", nil))
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}
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