What is Docker?
Docker is a platform for developing, shipping, and running applications inside containers.
Why Docker?
- Consistency across environments
- Faster onboarding
- Better resource usage than traditional VMs
Core Concepts
| Concept | Description |
|---|---|
| Image - | Read-only template |
| Container - | Running instance of an image |
| Volume - | Persistent storage |
| Dockerfile - | Build instructions |
Quick Example
Key Benefits
- Isolation
- Portability
- Scalability
- DevOps friendly workflow