docker-k8s

Production-ready Dockerfiles use multi-stage builds to create smaller base images and configure non-root users. This approach minimizes the final image size and improves security by separating the build environment from the runtime environment.

Docker Compose orchestrates local development by defining multi-service workflows, volume management, and environment variables. This ensures your local testing environment matches production, allowing you to build and test applications reliably with docker-compose up.

Kubernetes manifest patterns for scaling and health checks involve configuring deployment replicas, liveness probes, and readiness probes. These configurations ensure your application remains available and recovers automatically from failures across different deployment environments.

Yes, you can containerize an application with a Dockerfile, wire it to a Compose setup for local testing, and then deploy it to a Kubernetes cluster. This workflow uses minimal manifest sets and Helm chart scaffolds to transition from local development to production.

Yes, kubectl is required to apply Kubernetes manifests and Helm chart scaffolds to a cluster. You build and run locally with Docker and docker-compose up, then use kubectl apply -f k8s/ to execute your production deployment.

Using non-root users and smaller base images in Docker containerization reduces the attack surface and overall image size. These Dockerfile best practices lead to more secure, efficient deployments that start faster and consume fewer resources in Kubernetes.