准备工作_服务网格(ASM)-阿里云帮助中心

服务网格 ASM（Service Mesh）支持两种Sidecarless模式，Ambient模式和ACMG模式。本文将介绍这两种模式的入门示例应用的部署步骤，帮助您提前准备环境，以便尽快体验Sidecarless模式的特性。

前提条件

已创建符合条件的Kubernetes集群。更多信息，请参见适合的Kubernetes集群及配置。
已创建启用Ambient Mesh模式或ACMG模式的ASM实例。
在创建服务网格页面的数据面模式区域，选中启用Ambient Mesh模式或启用ACMG模式，其他配置项请按照实际情况进行配置。具体操作，请参见创建ASM实例。
已为ASM实例添加ACK集群。具体操作，请参见添加集群到ASM实例。
已创建入口网关。具体操作，请参见创建入口网关。

部署示例应用

本文使用bookinfo作为示例应用。更多信息，请参见在ASM实例关联的集群中部署应用。

在ACK集群中部署示例应用

登录ASM控制台，在左侧导航栏，选择服务网格 > 网格管理。
在网格管理页面，单击目标实例名称，然后在左侧导航栏，选择网格实例 > 全局命名空间。
开启Ambient模式或ACMG模式。
1. Ambient模式
  1. 在全局命名空间页面的数据面模式列，单击default命名空间对应的切换为Ambient Mesh模式，然后在确认对话框，单击确定。
2. ACMG模式
  1. 通过ASM实例的kubeconfig操作控制面集群，开启ACMG模式。
```
kubectl label namespace default istio.io/dataplane-mode=acmg
```

部署Bookinfo应用。

使用以下内容创建bookinfo.yaml。

展开查看YAML内容

apiVersion: v1
kind: Service
metadata:
  name: details
  labels:
    app: details
    service: details
spec:
  ports:
  - port: 9080
    name: http
  selector:
    app: details
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: bookinfo-details
  labels:
    account: details
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: details-v1
  labels:
    app: details
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: details
      version: v1
  template:
    metadata:
      labels:
        app: details
        version: v1
    spec:
      serviceAccountName: bookinfo-details
      containers:
      - name: details
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-details-v1:1.19.1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9080
---
##################################################################################################
# Ratings service
##################################################################################################
apiVersion: v1
kind: Service
metadata:
  name: ratings
  labels:
    app: ratings
    service: ratings
spec:
  ports:
  - port: 9080
    name: http
  selector:
    app: ratings
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: bookinfo-ratings
  labels:
    account: ratings
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: ratings-v1
  labels:
    app: ratings
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: ratings
      version: v1
  template:
    metadata:
      labels:
        app: ratings
        version: v1
    spec:
      serviceAccountName: bookinfo-ratings
      containers:
      - name: ratings
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-ratings-v1:1.19.1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9080
---
##################################################################################################
# Reviews service
##################################################################################################
apiVersion: v1
kind: Service
metadata:
  name: reviews
  labels:
    app: reviews
    service: reviews
spec:
  ports:
  - port: 9080
    name: http
  selector:
    app: reviews
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: bookinfo-reviews
  labels:
    account: reviews
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: reviews-v1
  labels:
    app: reviews
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: reviews
      version: v1
  template:
    metadata:
      labels:
        app: reviews
        version: v1
    spec:
      serviceAccountName: bookinfo-reviews
      containers:
      - name: reviews
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-reviews-v1:1.19.1
        imagePullPolicy: IfNotPresent
        env:
        - name: LOG_DIR
          value: "/tmp/logs"
        ports:
        - containerPort: 9080
        volumeMounts:
        - name: tmp
          mountPath: /tmp
        - name: wlp-output
          mountPath: /opt/ibm/wlp/output
      volumes:
      - name: wlp-output
        emptyDir: {}
      - name: tmp
        emptyDir: {}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: reviews-v2
  labels:
    app: reviews
    version: v2
spec:
  replicas: 1
  selector:
    matchLabels:
      app: reviews
      version: v2
  template:
    metadata:
      labels:
        app: reviews
        version: v2
    spec:
      serviceAccountName: bookinfo-reviews
      containers:
      - name: reviews
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-reviews-v2:1.19.1
        imagePullPolicy: IfNotPresent
        env:
        - name: LOG_DIR
          value: "/tmp/logs"
        ports:
        - containerPort: 9080
        volumeMounts:
        - name: tmp
          mountPath: /tmp
        - name: wlp-output
          mountPath: /opt/ibm/wlp/output
      volumes:
      - name: wlp-output
        emptyDir: {}
      - name: tmp
        emptyDir: {}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: reviews-v3
  labels:
    app: reviews
    version: v3
spec:
  replicas: 1
  selector:
    matchLabels:
      app: reviews
      version: v3
  template:
    metadata:
      labels:
        app: reviews
        version: v3
    spec:
      serviceAccountName: bookinfo-reviews
      containers:
      - name: reviews
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-reviews-v3:1.19.1
        imagePullPolicy: IfNotPresent
        env:
        - name: LOG_DIR
          value: "/tmp/logs"
        ports:
        - containerPort: 9080
        volumeMounts:
        - name: tmp
          mountPath: /tmp
        - name: wlp-output
          mountPath: /opt/ibm/wlp/output
      volumes:
      - name: wlp-output
        emptyDir: {}
      - name: tmp
        emptyDir: {}
---
##################################################################################################
# Productpage services
##################################################################################################
apiVersion: v1
kind: Service
metadata:
  name: productpage
  labels:
    app: productpage
    service: productpage
spec:
  ports:
  - port: 9080
    name: http
  selector:
    app: productpage
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: bookinfo-productpage
  labels:
    account: productpage
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: productpage-v1
  labels:
    app: productpage
    version: v1
spec:
  replicas: 1
  selector:
    matchLabels:
      app: productpage
      version: v1
  template:
    metadata:
      annotations:
        prometheus.io/scrape: "true"
        prometheus.io/port: "9080"
        prometheus.io/path: "/metrics"
      labels:
        app: productpage
        version: v1
    spec:
      serviceAccountName: bookinfo-productpage
      containers:
      - name: productpage
        image: registry-cn-hangzhou.ack.aliyuncs.com/acs/examples-bookinfo-productpage-v1:1.19.1
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9080
        volumeMounts:
        - name: tmp
          mountPath: /tmp
      volumes:
      - name: tmp
        emptyDir: {}
---

执行以下命令，在default命名空间中部署该示例应用。
```
kubectl apply -f  bookinfo.yaml
```

部署Sleep应用。

使用以下内容创建sleep.yaml。

展开查看YAML内容

apiVersion: v1
kind: ServiceAccount
metadata:
  name: sleep
---
apiVersion: v1
kind: Service
metadata:
  name: sleep
  labels:
    app: sleep
    service: sleep
spec:
  ports:
  - port: 80
    name: http
  selector:
    app: sleep
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: sleep
spec:
  replicas: 1
  selector:
    matchLabels:
      app: sleep
  template:
    metadata:
      labels:
        app: sleep
    spec:
      terminationGracePeriodSeconds: 0
      serviceAccountName: sleep
      containers:
      - name: sleep
        image: registry-cn-hangzhou.ack.aliyuncs.com/ack-demo/curl:asm-sleep
        command: ["/bin/sleep", "infinity"]
        imagePullPolicy: IfNotPresent
        volumeMounts:
        - mountPath: /etc/sleep/tls
          name: secret-volume
      volumes:
      - name: secret-volume
        secret:
          secretName: sleep-secret
          optional: true
---

执行以下命令，在default命名空间中部署该示例应用。
```
kubectl apply -f  sleep.yaml
```

部署Notsleep应用。

使用以下内容创建notsleep.yaml。

展开查看YAML内容

apiVersion: v1
kind: ServiceAccount
metadata:
  name: notsleep
---
apiVersion: v1
kind: Service
metadata:
  name: notsleep
  labels:
    app: notsleep
    service: notsleep
spec:
  ports:
  - port: 80
    name: http
  selector:
    app: notsleep
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: notsleep
spec:
  replicas: 1
  selector:
    matchLabels:
      app: notsleep
  template:
    metadata:
      labels:
        app: notsleep
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app
                  operator: In
                  values:
                  - productpage
              topologyKey: kubernetes.io/hostname 
      terminationGracePeriodSeconds: 0
      serviceAccountName: notsleep
      containers:
      - name: notsleep
        image: registry-cn-hangzhou.ack.aliyuncs.com/ack-demo/curl:asm-sleep
        command: ["/bin/sleep", "3650d"]
        imagePullPolicy: IfNotPresent
        volumeMounts:
        - mountPath: /etc/sleep/tls
          name: secret-volume
      volumes:
      - name: secret-volume
        secret:
          secretName: notsleep-secret
          optional: true
---

执行以下命令，在default命名空间中部署该示例应用。
```
kubectl apply -f  notsleep.yaml
```

在ASM实例中部署网格资源

使用以下内容，创建bookinfo-gateway.yaml文件。

YAML文件用于创建网关规则Gateway对象和虚拟服务VirtualService对象。

展开查看bookinfo-gateway.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: bookinfo-gateway
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: bookinfo
spec:
  hosts:
  - "*"
  gateways:
  - bookinfo-gateway
  http:
  - match:
    - uri:
        exact: /productpage
    - uri:
        prefix: /static
    - uri:
        exact: /login
    - uri:
        exact: /logout
    - uri:
        prefix: /api/v1/products
    route:
    - destination:
        host: productpage
        port:
          number: 9080

在ASM实例对应的KubeConfig环境下，执行以下命令，部署网格资源。
```
kubectl apply -f bookinfo-gateway.yaml
```

验证基本功能

执行以下命令，设置入口网关的环境变量。

export GATEWAY_HOST=istio-ingressgateway.istio-system
export GATEWAY_SERVICE_ACCOUNT=ns/istio-system/sa/istio-ingressgateway

测试bookinfo应用程序，查看在有无网关的情况下能否正常运行。

执行以下命令：

kubectl exec deploy/sleep -- curl -s "http://$GATEWAY_HOST/productpage" | grep -o "<title>.*</title>"

预期输出：

<title>Simple Bookstore App</title>

执行以下命令：

kubectl exec deploy/sleep -- curl -s http://productpage:9080/ | grep -o "<title>.*</title>"

预期输出：

<title>Simple Bookstore App</title>

执行以下命令：

kubectl exec deploy/notsleep -- curl -s http://productpage:9080/ | grep -o "<title>.*</title>"

预期输出：

<title>Simple Bookstore App</title>

以上结果表明在有无网关的情况下，bookinfo应用程序均可以正常运行。