Kubernetes Create a Pod

The following is an example of a Pod which consists of a container running the image nginx:1.17.0

• Open your terminal and create a directory using the syntax mkdir k8s
• Get inside the directory using the syntax cd k8s
• Create a configuration file using the syntax touch sample-pod.yaml
• Open the file using an text editor - For example use vi sample-pod.yaml
• Add the following set of instructions

apiVersion: v1
kind: Pod
metadata:
  name: my-nginx-pod
  labels:
    app: nginx
spec:
  containers:
  - name: nginx-container
    image: nginx:1.17.0

• Run the command kubectl apply -f sample-pod.yaml
• To check the pod creation - use syntax kubectl get all or kubectl get pods
• To get more details about the pod using the name - use syntax kubectl describe pod/my-nginx-pod
• To launch the shell inside our pod use syntax - kubectl exec -it my-nginx-pod -- /bin/bash
• Once inside the pod, try running curl http://localhost
• But, it will complain that curl is not found.
• So, we can use apt – advanced package tool – which is used to install/remove software on various Linux distros
• Now, do apt-get update
• Then, run apt-get install curl [ say yes 'y' for any prompt that comes up ]
• Finally, try to curl localhost again
• You should get a response this time w/ the nginx default html!
• Type “exit” to leave the shell