update web-show example (chaos-mesh#595)

Signed-off-by: cwen0 <[email protected]>

examples/web-show/deploy.sh

@@ -22,11 +22,13 @@ USAGE:
     install.sh [FLAGS] [OPTIONS]
 FLAGS:
     -h, --help              Prints help information
+    -d, --delete            Delete web-show application
         --docker-mirror     Use docker mirror to pull image
 EOF
 }
 
 DOCKER_MIRROR=false
+DELETE_APP=false
 
 while [[ $# -gt 0 ]]
 do
@@ -37,6 +39,10 @@ case $key in
         DOCKER_MIRROR=true
         shift
         ;;
+    -d|--delete)
+        DELETE_APP=true
+        shift
+        ;;
     -h|--help)
         usage
         exit 0
@@ -49,20 +55,65 @@ case $key in
 esac
 done
 
-TARGET_IP=$(kubectl get pod -n kube-system -o wide| grep kube-controller | head -n 1 | awk '{print $6}')
+if [ ${DELETE_APP} == "true" ]; then
+    kubectl delete deployments web-show
+    kubectl delete service web-show
+    exit 0
+fi
 
-sed "s/TARGETIP/$TARGET_IP/g" deployment.yaml > deployment-target.yaml
+TARGET_IP=$(kubectl get pod -n kube-system -o wide| grep kube-controller | head -n 1 | awk '{print $6}')
 
 if [ ${DOCKER_MIRROR} == "true" ]; then
     docker pull dockerhub.azk8s.cn/pingcap/web-show || true
     docker tag dockerhub.azk8s.cn/pingcap/web-show pingcap/web-show  || true
     kind load docker-image pingcap/web-show > /dev/null 2>&1 || true
 fi
 
-kubectl apply -f service.yaml
-kubectl apply -f deployment-target.yaml
+cat <<EOF | kubectl apply -f -
+apiVersion: v1
+kind: Service
+metadata:
+  name: web-show
+  labels:
+    app: web-show
+spec:
+  selector:
+    app: web-show
+  ports:
+    - protocol: TCP
+      port: 8081
+      targetPort: 8081
+EOF
 
-rm -rf deployment-target.yaml
+cat <<EOF | kubectl apply -f -
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: web-show
+  labels:
+    app: web-show
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: web-show
+  template:
+    metadata:
+      labels:
+        app: web-show
+    spec:
+      containers:
+        - name: web-show
+          image: pingcap/web-show
+          imagePullPolicy: Always
+          command:
+            - /usr/local/bin/web-show
+            - --target-ip=${TARGET_IP}
+          ports:
+            - name: web-port
+              containerPort: 8081
+              hostPort: 8081
+EOF
 
 while [[ $(kubectl get pods -l app=web-show -o 'jsonpath={..status.conditions[?(@.type=="Ready")].status}') != "True" ]]; do echo "Waiting for pod running" && sleep 10; done