YAML in Kubernetes

Tue, 25 Nov 2025 19:58:21 -0500

A pod definition file always contains the 4 top-level fields

These are top-level or root-level fields. REQUIRED fields.

pod-definition.yml

apiVersion: v1
kind: Pod
metadata:
 name: myapp-pod
 labels:
 app: myapp
 type: front-end 
spec:
 containers:
 -  name: nginx-container
 image: nginx

apiVersion Link to heading

kubectl create -f pod-definition.yaml

Above will deploy pod based on YAML file

Tue, 28 Oct 2025 23:21:32 -0400

Kubernetes ultimate aim is to deploy apps in CONTAINERS on a set of machines configured as WORKER NODES in a CLUSTER
Kubernetes aka “k8s” does not deploy containers DIRECTLY on worker nodes
Containers are encapsulated into a Kubernetes object known as POD
A pod is a single instance of an application
A pod is the SMALLEST object you can create in Kubernetes

Below is a very simple example of a YAML file. The file deploys a pod named “my-pod” with the image “nginx”.