How closely have you worked with Kubernetes? How did you configure the service configs?

In working with Kubernetes, I configured services through YAML manifest files, using objects such as Deployment, Service, ConfigMap, and Secret.

For service setup, I usually did the following:

• Deployment — specified the number of replicas, container image, environment variables, resources (CPU, memory), and update strategies.
• Service — created for pod access, choosing the type (ClusterIP, NodePort, LoadBalancer) based on needs.
• ConfigMap and Secret — for passing configuration data and secrets to containers without changing the image.

Example of a simple Deployment with ConfigMap:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-service
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-service
  template:
    metadata:
      labels:
        app: my-service
    spec:
      containers:
      - name: my-service-container
        image: my-service-image:latest
        envFrom:
        - configMapRef:
            name: my-service-config
        ports:
        - containerPort: 8080

I also configured readiness and liveness probes to monitor container health, as well as resources to limit consumption.

For complex services, I used Helm charts to manage configurations and deployment parameterization.