How to write a docker-compose.yml file?
· Docker
A well-written docker-compose.yml defines services, networks, and volumes cleanly. Learn the essential keys and structure for maintainable Compose files.
Category: Docker
52 questions in Docker.
What is Docker Compose?
· Docker
Docker Compose simplifies running multi-container applications with a declarative YAML file. Learn how it orchestrates services, networks, and volumes.
How to use Docker overlay networks?
· Docker
Overlay networks enable multi-host container communication for Docker Swarm and other clustered setups. Learn how to create and manage them.
How to troubleshoot Docker network issues?
· Docker
Docker network problems can cause connectivity failures between containers and external services. Learn systematic debugging steps and tools.
What is Docker host networking?
· Docker
Host networking removes container network isolation for maximum performance. Understand the trade-offs and when to use this driver.
How to connect containers with user-defined networks?
· Docker
User-defined networks enable DNS-based container discovery and traffic isolation. Learn how to link containers on custom networks for reliable communication.
How to persist data with Docker volumes?
· Docker
Docker volumes provide persistent storage that survives container restarts. Learn how to create, mount, and manage volumes for stateful applications.
How to use Docker Compose networking?
· Docker
Docker Compose creates default networks for multi-service apps. Learn how to define custom networks and control service communication in compose files.
How to expose ports in Docker?
· Docker
Port mapping connects container services to the host network. Learn how to publish ports with docker run and the EXPOSE instruction.
What is the difference between volumes and bind mounts?
· Docker
Volumes and bind mounts both persist data outside containers, but they differ in management, performance, and use cases. Learn which to choose.