Local Kubernetes Monitoring

Step 1: Execute kubectl top nodes in the kubernetes. If you are not able to view the below details then execute Step 2 otherwise go to Step 3.

Step 2: Install metrics pod in the Kubernetes.  Execute the 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

Note:  If it is running then go to Step 3. If it is not running then follow the below steps

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

kubectl edit deployments.apps -n kube-system metrics-server

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

- --kubelet-insecure-tls

3: After few minutes execute the command kubectl get pods -n kube-system and check the metrics server is running. If it is running skip the below step.

4:  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.

- --kubelet-preferred-address-types=InternalIP

5: To verify the metrics API server is running execute the below command and check

kubectl top nodes

SingleAgent should be deployed in the machine where kubernetes cluster is running.

Step 3: Refer here to install SingleAgent and start.

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

Step 4. Execute the below command and note down the cluster server details for configuration.

kubectl config view

Cluster IP : kubernetes.docker.internal

Port : 6443

Protocol : https

Step 5: Login into Applicare console and go to Overview screen and select the newly added server and click Edit button.

Step 6: Enable the Add Kubernetes Monitoring checkbox and add the configuration details. Leave the Token field empty and 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 Edit button and update the details and click Update button.

Delete

Select the row and click Edit button and uncheck the Add the Kubernetes Monitoring checkbox and click Update button.

Kubernetes Menu

Update

Select the row and click Edit button and update the details and click Save button.

Delete

Select the row and click Delete button.