Deploying a serverless application using Knative on ASM

Versions earlier than 1.18.2.104

1. Deploy the Knative Serving component in your ACK or ACK Serverless cluster. For Gateway, select Kourier.

   • For more information about how to install Knative on ACK, see Deploy and manage Knative components.

   • For more information about how to install Knative on ACK Serverless, see Deploy Knative.

     Important

     After the component is installed, click the Components tab. In the Add-on Component section, uninstall the Kourier component.

2. Log on to the ASM console. In the left-side navigation pane, choose Service Mesh > Mesh Management.

3. On the Mesh Management page, click the name of the ASM instance. In the left-side navigation pane, choose Ecosystem > Knative on ASM.

4. On the Knative on ASM page, click Enable Knative on ASM.

Versions 1.18.2.104 to 1.21.6.83

1. Log on to the ASM console. In the left-side navigation pane, choose Service Mesh > Mesh Management.

2. On the Mesh Management page, click the name of the ASM instance. In the left-side navigation pane, choose Ecosystem > Knative on ASM.

3. On the Knative on ASM page, select the required Knative version and click Enable Knative on ASM.

4. Deploy Knative in your ACK or ACK Serverless cluster. For Gateway, select ASM.

   • For more information about how to install Knative on ACK, see Deploy and manage Knative components.

   • For more information about how to install Knative on ACK Serverless, see Deploy Knative.

Versions 1.21.6.84 and later

1. Log on to the ACK console. In the left navigation pane, click Clusters.

2. On the Clusters page, click the name of your cluster. In the left navigation pane, click Applications > Knative.

3. On the Knative page, go to the Components tab and click Deploy Knative. Select ASM for the Gateway and click Deploy.

   After the deployment is successful, you can use Service Mesh (ASM) in Knative.

   Note

   After the deployment completes, ensure the ingress gateway is created and running properly before you deploy a Knative Service.

Method 1: ACK console

1. Log on to the ACK console. In the left navigation pane, click Clusters.

2. On the Clusters page, click the name of your cluster. In the left navigation pane, click Applications > Knative.

3. On the Knative page, click the Services tab. In the upper-right corner, click Create Service. Configure the parameters and click Create.

   For more information about the parameters, see Quickly deploy a Knative Service.

   Parameter	Description	Example
   Namespace	Select the namespace to which the service belongs.	default
   Service Name	Enter a custom name for the service.	helloworld-go
   Image Name	Click Select Image, select the desired image, and click OK. You can also specify an image from a private registry by using the format domainname/namespace/imagename:tag.	registry.cn-hangzhou.aliyuncs.com/knative-sample/helloworld-go
   Image Version	Click Select Image Version, select the target version, and click OK.	73fbdd56
   Access Protocol	HTTP and gRPC are supported.	HTTP
   Container Port	Set the container port to expose. The port number must be between 1 and 65535.	8080
   Environment Variables	Click Advanced, then click Add next to Environment Variables to configure them as key-value pairs.	Type: Custom Variable Name: TARGET Value/ValueFrom: Knative

Method 2: YAML file

1. Save the following content to a file named helloworld-go.yaml.

   apiVersion: serving.knative.dev/v1
   kind: Service
   metadata:
     name: helloworld-go
     annotations:
       knative.k8s.alibabacloud/tls: "false"
   spec:
     template:
       spec:
         containers:
           - image: registry.cn-hangzhou.aliyuncs.com/knative-sample/helloworld-go:73fbdd56
             ports:
               - containerPort: 8080
             env:
               - name: TARGET
                 value: "Knative"

2. Connect to the ACK cluster using kubectl. Run the following command to create the Knative Service.

   kubectl apply -f helloworld-go.yaml

3. Run the following command to list the Knative services:

   kubectl get ksvc

   Expected output:

   NAME            URL                                        LATESTCREATED         LATESTREADY           READY   REASON
   helloworld-go   http://helloworld-go.default.example.com   helloworld-go-00001   helloworld-go-00001   True

Method 3: Template

1. Log on to the ACK console. In the navigation pane on the left, choose Cluster.

2. On the Clusters page, click the name of the target cluster. In the navigation pane on the left, choose Applications > Knative.

3. On the Knative page, click the Services tab. Set Namespace to default. Click Create from Template, paste the following YAML sample into the editor, and click Create. This action creates a service named helloworld-go.

   apiVersion: serving.knative.dev/v1
   kind: Service
   metadata:
     name: helloworld-go
   spec:
     template:
       spec:
         containers:
         - image: registry.cn-hangzhou.aliyuncs.com/knative-sample/helloworld-go:73fbdd56 # This is a sample image. You can replace it with your own image.
           env:
           - name: TARGET
             value: "Knative"

Method 1: ACK console

1. Log on to the ACK console. In the left navigation pane, click Clusters.

2. On the Clusters page, click the name of your cluster. In the left navigation pane, click Applications > Knative.

3. Click the Services tab. In the service list, click the target service name to open its details page. In the Basic Information section, view and copy the Gateway address and the Default Domain.

Method 2: ASM console

1. Log on to the ASM console. In the left-side navigation pane, choose Service Mesh > Mesh Management.

2. On the Mesh Management page, click the name of the target instance. In the navigation pane on the left, choose ASM Gateways > Ingress Gateway.

3. On the Ingress Gateway page, view and copy the access gateway address from the Service address section.