docker commands

Build, Run, Stop an image

docker build -t myapp .

# ports are host:container syntax
docker run -d -p 8080:80 --name myapp-container myapp

docker ps
docker stop myapp-container
docker rm myapp-container

docker system prune

Dockerfile

# Use official Python image
FROM python:3.11-slim

WORKDIR /app
COPY requirements.txt .
RUN pip install -r requirements.txt
COPY . .

CMD ["python", "main.py"]

Docker compose

version: '3.8'
services:
  web:
    build: .
    ports:
      - "8080:80"
    volumes:
      - .:/app
    environment:
      - DEBUG=true

Docker compose cmds

docker compose up
docker compose up --build # rebuild and start
docker compose down
docker compose logs -f

Debugging

docker exec -it myapp-container /bin/sh
docker run --rm -it --entrypoint bash rh9

Useful commands

Stop all examples

docker stop $(docker ps -q)