CLI Pod Creation¶

This page provides a detailed guide on how to create and manage support pods in Kubernetes (K8S) using the command-line interface (CLI)

Step 1: Ensure You Have kubectl Installed¶

Make sure you have kubectl installed on your machine. You can download it from the Kubernetes website and follow the installation instructions for your operating system.

Step 2: Open a Terminal¶

Open your terminal or command prompt where you can run Kubernetes commands.

Step 3: Connect to Your Kubernetes Cluster¶

Make sure you are connected to your Kubernetes cluster. You can use the following command to check your connection:

kubectl cluster-info

If you are not connected, follow the instructions provided by your cluster provider to connect.

Step 4: Create a YAML File for the Pod¶

Create a new YAML file named support-pod-node.yaml with the following content:

apiVersion: v1
kind: Pod
metadata:
  name: support-pod-node
  namespace: default
spec:
  containers:
  - name: support-pod-node
    image: ubuntu:latest
    command:
    - "/bin/bash"
    - "-c"
    - |
      apt-get update && \
      apt-get install -y netcat-openbsd telnet dnsutils curl iputils-ping git && \
      while true; do sleep 3600; done
    resources:
      requests:
        cpu: 100m
        memory: 128Mi
      limits:
        cpu: 200m
        memory: 256Mi
  nodeName: aks-nodename-13402868-vmss000003

Step 5: Apply the YAML File to Your Cluster¶

Run the following command to apply the YAML file to your Kubernetes cluster:

kubectl apply -f support-pod-node.yaml

This command will create the support-pod-node pod in your cluster.

Step 6: Verify the Pod is Running¶

Check the status of the pod to ensure it is running:

kubectl get pods -n default

You should see the support-pod-node listed as running.

Step 7: Access the Pod¶

To access the pod and run commands inside it, use the following command:

kubectl exec -it support-pod-node -- /bin/bash

This command will open an interactive shell inside the support-pod-node pod.

Step 8: Troubleshoot and Support¶

You can now use the pod for troubleshooting and support tasks using the installed utilities like netcat, telnet, dnsutils, curl, ping, and git.