Deploy an application in an ASM instance - Alibaba Cloud Service Mesh

After you deploy an ingress gateway in a cluster that is added to a Service Mesh (ASM) instance, you can deploy applications in the ASM instance. This topic describes how to deploy an application in an ASM instance.

Prerequisites

An ASM instance is created, and a Container Service for Kubernetes (ACK) cluster is added to the instance. For more information, see Create an ASM instance and Add a cluster to an ASM instance.
The kubectl client is connected to the ACK cluster that is added to the ASM instance. For more information, see Obtain the kubeconfig file of a cluster and use kubectl to connect to the cluster.
An ingress gateway is deployed in the ACK cluster. This way, after you deploy an application in the ACK cluster, the application is exposed outside of the ASM instance. For more information, see Create an ingress gateway.

Background information

In this topic, a book review application that is named Bookinfo is used as an example. The following figure shows the microservices model of the application.

The Bookinfo application consists of the following microservices:

Productpage: generates pages by calling the Details and Reviews microservices.
Details: contains the information about books.
Reviews: contains book reviews and may call the Ratings microservice.
Ratings: contains book ratings that are generated based on book reviews.

The Reviews microservice has the following versions:

Version 1 does not call the Ratings microservice.
Version 2 calls the Ratings microservice and rates a book with one to five black stars.
Version 3 calls the Ratings microservice and rates a book with one to five red stars.

Procedure

Enable automatic sidecar proxy injection for the default namespace. For more information, see Enable automatic sidecar proxy injection.
Download the YAML file of the Bookinfo application from the Istio repository of GitHub.
Run the following command on the kubectl client to deploy the Bookinfo application in the ACK cluster that is added to the ASM instance.
```
kubectl apply -f bookinfo.yaml
```

View the result

To view the deployment information about the Bookinfo application, perform the following steps:

Log on to the ACK console. In the left-side navigation pane, click Clusters.
On the Clusters page, click the name of the cluster that you want to manage and choose Workloads > Pods in the left-side navigation pane.
In the upper part of the Pods page, select default from the Namespace drop-down list.
Note
Click View Details in the Actions column of the pod of the Bookinfo application.