Docker Overview
Docker Overview
Section titled “Docker Overview”Docker is a container platform used to package applications with their runtime dependencies so they can run consistently across development, testing, and production environments.
Why Docker Matters
Section titled “Why Docker Matters”Containerization solves a practical engineering problem: code that works on one machine often fails elsewhere because the runtime environment differs. Docker makes the environment part of the deliverable.
Core Concepts
Section titled “Core Concepts”- images are immutable build artifacts
- containers are running instances of images
- Dockerfiles define how images are built
- volumes hold persistent data outside container lifecycles
- networks let containers communicate in controlled ways
Where To Go Next
Section titled “Where To Go Next”- Read Docker Overview Index for the section map.
- Continue with Images and Containers.
- Then read Dockerfiles and Builds.