What experience do you have with containerization and automation tools, including Docker, Ansible, and Kubernetes?

I have experience working with Docker, Ansible, and Kubernetes at a level sufficient for automating deployment and managing applications.

• Docker: Created and optimized Dockerfiles for containerizing applications, managed images and containers, used Docker Compose for local testing of multi-container services.

• Ansible: Wrote playbooks for automating server configuration, application deployment, and infrastructure management, used roles for code structuring and reuse.

• Kubernetes: Deployed applications in a cluster, created manifests for Pod, Deployment, Service, ConfigMap, used Helm for package management, monitored cluster status.

Example of a simple Dockerfile:

FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt ./
RUN pip install -r requirements.txt
COPY . .
CMD ["python", "app.py"]

This experience allows effective automation of CI/CD processes and management of containerized applications.