100-Days-Of-DevOps-Challenge-KodeKloud

Deploy Pods in Kubernetes Cluster

The Nautilus DevOps team is diving into Kubernetes for application management. One team member has a task to create a pod according to the details below:

Create a pod named pod-httpd using the httpd image with the latest tag. Ensure to specify the tag as httpd:latest.
Set the app label to httpd_app, and name the container as httpd-container.

Note: The kubectl utility on jump_host is configured to operate with the Kubernetes cluster.

Steps

Create a k3s-pod.yml file inside the jump host with this contents
Run the following command to create pod in kubernetes cluster:
```
  kubectl apply -f k3s-pod.yml
```
Check if pod is running or not:
```
  kubectl get pods
```

Good to Know?

Kubernetes Pods

Smallest Unit: Basic deployable unit in Kubernetes
Container Group: One or more containers sharing resources
Shared Network: Containers share IP address and ports
Shared Storage: Volumes mounted to all containers in pod

Pod Lifecycle

Pending: Pod accepted but not yet scheduled
Running: Pod bound to node and containers created
Succeeded: All containers terminated successfully
Failed: At least one container failed
Unknown: Pod state cannot be determined

YAML Manifest Structure

apiVersion: Kubernetes API version
kind: Resource type (Pod, Deployment, Service)
metadata: Name, labels, annotations
spec: Desired state specification

kubectl Commands

Create: kubectl apply -f pod.yaml
List: kubectl get pods
Describe: kubectl describe pod pod-name
Logs: kubectl logs pod-name
Delete: kubectl delete pod pod-name

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