Have you used YAML for resource configuration or management in Kubernetes in your projects?

Yes, YAML is widely used for configuring and managing resources in Kubernetes. In my projects, I have written YAML manifests to describe Kubernetes objects such as Pod, Deployment, Service, ConfigMap, and others.

Example of a simple Deployment in YAML:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-container
        image: my-image:latest
        ports:
        - containerPort: 80

Using YAML allows for declarative description of the cluster state and convenient management of infrastructure through kubectl or CI/CD pipelines.