add web-show example (chaos-mesh#304)

examples/web-show/deploy.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+set -e
+
+usage() {
+    cat << EOF
+This script is used to install web-show.
+USAGE:
+    install.sh [FLAGS] [OPTIONS]
+FLAGS:
+    -h, --help              Prints help information
+        --docker-mirror     Use docker mirror to pull image
+EOF
+}
+
+DOCKER_MIRROR=false
+
+while [[ $# -gt 0 ]]
+do
+key="$1"
+
+case $key in
+    --docker-mirror)
+        DOCKER_MIRROR=true
+        shift
+        ;;
+    -h|--help)
+        usage
+        exit 0
+        ;;
+    *)
+        echo "unknown option: $key"
+        usage
+        exit 1
+        ;;
+esac
+done
+
+TARGET_IP=$(kubectl get pod -n kube-system -o wide| grep kube-controller | head -n 1 | awk '{print $6}')
+
+sed "s/TARGETIP/$TARGET_IP/g" deployment.yaml > deployment-target.yaml
+
+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
+
+rm -rf deployment-target.yaml
+
+while [[ $(kubectl get pods -l app=web-show -o 'jsonpath={..status.conditions[?(@.type=="Ready")].status}') != "True" ]]; do echo "Waiting for pod running" && sleep 1; done
+
+kill $(lsof -t -i:8081) 2>&1 >/dev/null || true
+
+nohup kubectl port-forward svc/web-show 8081:8081 >/dev/null 2>&1 &

examples/web-show/deployment.yaml

@@ -0,0 +1,27 @@
+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=TARGETIP
+          ports:
+            - name: web-port
+              containerPort: 8081
+              hostPort: 8081

examples/web-show/network-delay.yaml

@@ -0,0 +1,19 @@
+apiVersion: pingcap.com/v1alpha1
+kind: NetworkChaos
+metadata:
+  name: network-delay-example
+spec:
+  action: delay
+  mode: one
+  selector:
+    namespaces:
+      - default
+    labelSelectors:
+      "app": "web-show"
+  delay:
+    latency: "10ms"
+    correlation: "100"
+    jitter: "0ms"
+  duration: "30s"
+  scheduler:
+    cron: "@every 60s"

examples/web-show/service.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: web-show
+  labels:
+    app: web-show
+spec:
+  selector:
+    app: web-show
+  ports:
+    - protocol: TCP
+      port: 8081
+      targetPort: 8081