Essential DevOps Interview Questions for Docker, Kubernetes, and CI/CD Pipelines

Docker, Kubernetes, and CI/CD pipelines are must-know areas for any DevOps interview. Below are key questions.

1. What is Docker, and how does it work in DevOps?
2. Explain how Kubernetes manages container orchestration.
3. How do you build a CI/CD pipeline using Docker and Kubernetes?
4. What is a Helm chart in Kubernetes?
5. How do you handle scaling in a Kubernetes cluster?

Mastering these topics can help you impress interviewers. Here’s an example Dockerfile for a simple Python app:

FROM python:3.8-slim

WORKDIR /app
COPY . .
RUN pip install -r requirements.txt
CMD ["python", "app.py"]