Remote Kubernetes Monitoring

1.  Execute the below command to create a new serviceaccount:

2. Create an applicareapi-cluster-role.yml file with the below content:

3. Execute the below command in the same directory where the file was created:

4. Create an applicareapi-cluster-role-binding.yml file with the below content:

5. Rolebinding is created for the serviceaccount by executing the below command:

6. Execute kubectl top nodes in the kubernetes.

• If you are not able to view the below details, then: Install metrics pod in Kubernetes. Execute the below command to install metrics pod:
  • kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
• Check if the metrics server is running by executing the below command.
  • kubectl get pods -n kube-system

If it is still not running, then follow the below steps:

• Step 1: Edit the configuration file by executing the below command.

• Step 2: Add the below lines in the spec: container: args: and save the file.

• Step 3: After a few minutes, execute the command kubectl get pods -n kube-system and check if the metrics server is running. 
  • If it is not running, then: Edit the configuration file by executing the command kubectl edit deployments.apps -n kube-system metrics-server and modify the below lines in the spec: container: args: and save it.

• Step 4: To verify the metrics API server is running, execute the below command and check kubectl top nodes.

7. Refer here to install SingleAgent and start.

• Once we start the agent it will be added to Applicare Console.

8. Execute the below command one by one to get the Cluster IP and Token. Copy the $APISERVER and $TOKEN value for configuration.

9. Login into the Applicare console and go to the Overview screen. Select the newly added server and click the Edit button.
10. Enable the Add Kubernetes Monitoring checkbox and add the configuration details.
11. Remove the "https:// (or) http://" in $APISERVER value and Paste the remaining value in the ClusterIP field.
12. Copy the $TOKEN value and paste it in the Token field.
13. Enter the Kubernetes running port in the Port field.
14. Select the Kubernetes protocol from the Protocol dropdown. Protocol details will be available in the $APISERVER. "https:// (or) http://" 
15. Click the Update button.

• Note: We can edit or delete the Kubernetes configuration from both the Overview or Kubernetes menu.

Overview Menu

Update

• Select the row and click the Edit button to update details and then click the Update button.

Delete

• Select the row and click the Edit button and Uncheck the Add the Kubernetes Monitoring checkbox. Then, click the Update button.

Kubernetes Menu

Update

• Select the row and click the Edit button to update details. Then, click the Save button.

Delete

• Select the row and click the Delete button.

Note: We can edit or delete the Kubernetes configuration from both the Overview or Kubernetes menu.