Docker

Manage containers, images, volumes, and networks.

Containers

List Containers

# Running containers
docker ps

# All containers (including stopped)
docker ps -a

# Just IDs
docker ps -q

Run Container

# Basic run
docker run -d --name myapp nginx

# With port mapping
docker run -d -p 8080:80 nginx

# With volume mount
docker run -d -v $(pwd):/app node:20

# Interactive shell
docker run -it ubuntu bash

# Remove after exit
docker run --rm alpine echo "hello"

Container Lifecycle

# Stop
docker stop myapp

# Start
docker start myapp

# Restart
docker restart myapp

# Remove
docker rm myapp

# Force remove running
docker rm -f myapp

Logs & Exec

# View logs
docker logs myapp

# Follow logs
docker logs -f myapp

# Last 100 lines
docker logs --tail 100 myapp

# Execute command in container
docker exec myapp ls /app

# Interactive shell in running container
docker exec -it myapp bash

Images

# List images
docker images

# Pull image
docker pull python:3.13

# Build from Dockerfile
docker build -t myapp .

# Build with specific file
docker build -f Dockerfile.prod -t myapp:prod .

# Remove image
docker rmi nginx

# Remove unused images
docker image prune

Volumes

# List volumes
docker volume ls

# Create volume
docker volume create mydata

# Inspect volume
docker volume inspect mydata

# Remove volume
docker volume rm mydata

# Remove unused volumes
docker volume prune

Networks

# List networks
docker network ls

# Create network
docker network create mynet

# Connect container to network
docker network connect mynet myapp

# Inspect network
docker network inspect mynet

Docker Compose

# Start services
docker compose up -d

# Stop services
docker compose down

# View logs
docker compose logs -f

# Rebuild and start
docker compose up -d --build

# List services
docker compose ps

Cleanup

# Remove all stopped containers
docker container prune

# Remove all unused data (containers, images, volumes, networks)
docker system prune -a

# Show disk usage
docker system df

Inspect & Debug

# Container details
docker inspect myapp

# Resource usage
docker stats

# Container processes
docker top myapp