.gitignore

*.swp
inclusterconfig

Dockerfile

FROM ubuntu

ADD inclusterconfig /inclusterconfig

inclusterconfig.yaml

apiVersion: v1
kind: Pod
metadata:
  name: inclusterconfig
  namespace: default
spec:
  containers:
  - args:
    - sleep
    - infinity
    image: gcr.io/mikedanese-k8s/inclusterconfig:latest
    imagePullPolicy: Always
    name: inclusterconfig
    resources:
      requests:
        cpu: 100m
    stdin: true
    tty: true
    volumeMounts:
    - mountPath: /var/run/secrets/kubernetes.io/serviceaccount
      name: kube-api-access-xlbtg
      readOnly: true
  dnsPolicy: ClusterFirst
  enableServiceLinks: true
  volumes:
  - name: kube-api-access-xlbtg
    projected:
      defaultMode: 420
      sources:
      - serviceAccountToken:
          expirationSeconds: 600
          path: token
      - configMap:
          items:
          - key: ca.crt
            path: ca.crt
          name: kube-root-ca.crt
      - downwardAPI:
          items:
          - fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
            path: namespace

main.go

package main

import (
	"flag"
	"log"
	"time"

	"k8s.io/client-go/kubernetes"
	"k8s.io/client-go/rest"
	"k8s.io/component-base/logs"
	"k8s.io/klog"
)

func main() {
	logs.InitLogs()
	defer logs.FlushLogs()
	flag.Set("v", "10")
	flag.Set("logtostderr", "true")
	flag.Parse()
	klog.Infof("started")

	cfg, err := rest.InClusterConfig()
	if err != nil {
		log.Fatalf("err: %v", err)
	}

	c := kubernetes.NewForConfigOrDie(cfg).RESTClient()

	t := time.Tick(10 * time.Second)
	for {
		<-t
		klog.Infof("one req")
		c.Get().AbsPath("/healthz").Do()
	}
}

Makefile

inclusterconfig: main.go
	go build -o inclusterconfig .


image: inclusterconfig
	docker build -t gcr.io/mikedanese-k8s/inclusterconfig:latest .


push: image
	docker push gcr.io/mikedanese-k8s/inclusterconfig:latest

.PHONY: inclusterconfig image push