Core Docker Commands (Images, Containers, Compose)

This will cover:

• Building images
• Rebuilding with args
• Running containers
• Container lifecycle
• Inspecting and debugging
• Docker Compose commands
• Common variations used in real work

No fluff.

1) Image Building Commands

Basic Build

docker build -t myapp .

• t → tag (name:tag)
• . → build context (current directory)

Equivalent to:

docker build --tag myapp:latest .

If no tag given → defaults to latest.