Container Service for Kubernetes:Monitor applications

Step 1: Install the ARMS application monitoring agent

1. Log on to the ACK console.

2. In the left-side navigation pane of the ACK console, click Clusters. On the Clusters page, click the name of the cluster.

3. In the left-side navigation pane, choose Operations > Add-ons. On the Add-ons page, enter ack-onepilot in the upper-right corner.

4. Click Install on the ack-onepilot card.

   Note

   By default, the ack-onepilot component supports 1,000 pods. For every additional 1,000 pods in the cluster, you need to add 0.5 CPU cores and 512 MB memory for the component.

5. In the dialog box that appears, configure the parameters and click OK. We recommend that you use the default values.

   Note

   After you install ack-onepilot, you can upgrade, configure, or uninstall it on the Add-ons page.

Step 2: Grant the cluster the permissions to access ARMS

• To monitor applications in a serverless Kubernetes (ASK) cluster or applications in a Kubernetes cluster connected to Elastic Container Instance (ECI), you must first authorize the cluster to access ARMS on the Cloud Resource Access Authorization page. Then, restart all pods on which the ack-onepilot agent is deployed.

• If you want to monitor applications in an ACK cluster with no ARMS Addon Token, perform the following operations to authorize the ACK cluster to access ARMS.

  Note

  If a cluster has ARMS Addon Token, ARMS performs password-free authorization on the cluster. ARMS Addon Token may not exist in some ACK managed clusters. We recommend that you check whether an ACK managed cluster has ARMS Addon Token before you use ARMS to monitor applications in the cluster. If the cluster has no ARMS Addon Token, you must manually authorize the cluster to access ARMS.

  1. Log on to the ACK console.

  2. In the left-side navigation pane, click Clusters. On the Clusters page, click the name of the cluster.

  3. On the details page of the cluster, click the Cluster Resources tab. On the tab, click the hyperlink next to Worker RAM Role.

  4. On the Permissions tab, click Grant Permission.

  5. Select the AliyunARMSFullAccess policy and click OK.

Step 3: Enable ARMS to monitor Java applications

To enable ARMS when you create an application, perform the following steps:

1. In the left-side navigation pane of the ACK console, click Clusters. On the Clusters page, find the cluster that you want to manage and click Applications in the Actions column.

2. In the upper-right corner of the Deployments page, click Create from YAML.

3. On the page that appears, select a template from the Sample Template drop-down list, and add the following labels to the spec > template > metadata section in the Template code editor:

   labels:
     armsPilotAutoEnable: "on"
     armsPilotCreateAppName: "<your-deployment-name>"    # Replace <your-deployment-name> with the actual application name. 
     armsSecAutoEnable: "on"    # If you want to connect the application to Application Security, you must configure this parameter.

   Note

   • For more information about Application Security, see What is Application Security?.

   • For more information about the billing rules of Application Security, see Billing rules.

   

   The following YAML template shows how to create a Deployment application and enable Application Monitoring for the application:

   Show YAML content

   apiVersion: v1
   kind: Namespace
   metadata:
     name: arms-demo
   ---
   apiVersion: apps/v1 # for versions before 1.8.0 use apps/v1beta1
   kind: Deployment
   metadata:
     name: arms-springboot-demo
     namespace: arms-demo
     labels:
       app: arms-springboot-demo
   spec:
     replicas: 2
     selector:
       matchLabels:
         app: arms-springboot-demo
     template:
       metadata:
         labels:
           app: arms-springboot-demo
           armsPilotAutoEnable: "on"
           armsPilotCreateAppName: "arms-k8s-demo"
           one-agent.jdk.version: "OpenJDK11"
       spec:
         containers:
           - resources:
               limits:
                 cpu: 0.5
             image: registry.cn-hangzhou.aliyuncs.com/arms-docker-repo/arms-springboot-demo:v0.1
             imagePullPolicy: Always
             name: arms-springboot-demo
             env:
               - name: SELF_INVOKE_SWITCH
                 value: "true"
               - name: COMPONENT_HOST
                 value: "arms-demo-component"
               - name: COMPONENT_PORT
                 value: "6666"
               - name: MYSQL_SERVICE_HOST
                 value: "arms-demo-mysql"
               - name: MYSQL_SERVICE_PORT
                 value: "3306"
   ---
   apiVersion: apps/v1 # for versions before 1.8.0 use apps/v1beta1
   kind: Deployment
   metadata:
     name: arms-springboot-demo-subcomponent
     namespace: arms-demo
     labels:
       app: arms-springboot-demo-subcomponent
   spec:
     replicas: 2
     selector:
       matchLabels:
         app: arms-springboot-demo-subcomponent
     template:
       metadata:
         labels:
           app: arms-springboot-demo-subcomponent
           armsPilotAutoEnable: "on"
           armsPilotCreateAppName: "arms-k8s-demo-subcomponent"
           one-agent.jdk.version: "OpenJDK11"
       spec:
         containers:
           - resources:
               limits:
                 cpu: 0.5
             image: registry.cn-hangzhou.aliyuncs.com/arms-docker-repo/arms-springboot-demo:v0.1
             imagePullPolicy: Always
             name: arms-springboot-demo-subcomponent
             env:
               - name: SELF_INVOKE_SWITCH
                 value: "false"
               - name: MYSQL_SERVICE_HOST
                 value: "arms-demo-mysql"
               - name: MYSQL_SERVICE_PORT
                 value: "3306"
   ---
   apiVersion: v1
   kind: Service
   metadata:
     labels:
       name: arms-demo-component
     name: arms-demo-component
     namespace: arms-demo
   spec:
     ports:
       # the port that this service should serve on
       - name: arms-demo-component-svc
         port: 6666
         targetPort: 8888
     # label keys and values that must match in order to receive traffic for this service
     selector:
       app: arms-springboot-demo-subcomponent
   ---
   apiVersion: apps/v1 # for versions before 1.8.0 use apps/v1beta1
   kind: Deployment
   metadata:
     name: arms-demo-mysql
     namespace: arms-demo
     labels:
       app: mysql
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: mysql
     template:
       metadata:
         labels:
           app: mysql
       spec:
         containers:
           - resources:
               limits:
                 cpu: 0.5
             image: registry.cn-hangzhou.aliyuncs.com/arms-docker-repo/arms-demo-mysql:v0.1
             name: mysql
             ports:
               - containerPort: 3306
                 name: mysql
   ---
   apiVersion: v1
   kind: Service
   metadata:
     labels:
       name: mysql
     name: arms-demo-mysql
     namespace: arms-demo
   spec:
     ports:
       # the port that this service should serve on
       - name: arms-mysql-svc
         port: 3306
         targetPort: 3306
     # label keys and values that must match in order to receive traffic for this service
     selector:
       app: mysql
   ---

View the result

On the Deployments page, find the application that you want to monitor, and check whether the ARMS Console button appears in the Actions column.

What to do next

After you complete the preceding steps, ARMS Application Monitoring is enabled for the application deployed in ACK. Click ARMS Console in the Actions column of the application to go to the Application Monitoring page of the ARMS console. For more information, see Application overview.