Devops

Day 19 of DevOps learning 🚀 :

👉 As I continue my DevOps journey, today I dived into Kubernetes manifest files! These configuration files are essential for defining and maintaining the desired state of objects in a Kubernetes cluster. Here's a quick breakdown of what I've learned:

- Kubernetes manifest files are typically written in YAML and describe how to configure resources like Pods, Deployments, Services, and more. These files make it easy to manage your infrastructure in a declarative way, meaning you define the "what" and Kubernetes takes care of the "how."

👉 Sample Manifest for a Pod:

apiVersion: v1

kind: Pod

metadata:

name: nginx-pod

labels:

app: nginx

spec:

containers:

• name: nginx-container

  image: nginx:latest

  ports:

  • containerPort: 80

👉 This simple manifest file defines a Pod running an NGINX container, exposing port 80

👉 Key Components:

- ApiVersion: Specifies the version of the Kubernetes API to use.

- Kind: Defines the type of object (Pod, Deployment, etc.).

- Metadata: Includes important info like the name and labels of the object.

- Spec: Describes the desired state (containers, ports, images, etc.).

You can create resources using kubectl apply:

- kubectl apply -f nginx-pod.yaml

- With this, Kubernetes will spin up your Pod as defined!

#devops #sre