Docker

For Debian: https://docs.docker.com/engine/install/debian/

Installation

Requirements

sudo apt update
sudo apt install -y ca-certificates curl gnupg

Add repository

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg
echo \
  "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install docker dependencies

sudo apt update
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

Enable and start docker

sudo systemctl enable docker
sudo systemctl start docker

Check if docker is running

sudo systemctl status docker

Cheatsheet

Docker

• docker ps: list containers
• docker ps -a: list all containers
• docker --version: show version
• docker images: list images
• docker rm [ID]: remove container
• docker rmi [ID]: remove image
• docker run -it [IMAGE]: run image
• docker run -it --rm [IMAGE]: run image and remove it after exit
• docker run -it --rm -v [HOST_PATH]:[CONTAINER_PATH] [IMAGE]: run image and mount volume
• docker run -it --rm -v [HOST_PATH]:[CONTAINER_PATH] -p [HOST_PORT]:[CONTAINER_PORT] [IMAGE]: run image and mount volume and expose port

Docker Compose

• docker-compose up: start containers
• docker-compose up -d: start containers in background
• docker-compose down: stop containers
• docker-compose down -v: stop containers and remove volumes
• docker-compose logs: show logs
• docker-compose logs -f: show logs in real time
• docker-compose exec [SERVICE] [COMMAND]: execute command in service
• docker-compose exec [SERVICE] sh: execute shell in service
• docker-compose exec [SERVICE] bash: execute bash in service
• docker-compose exec [SERVICE] mysql -u [USER] -p: execute mysql in service

Options

Allow non-root user to run docker

sudo gpasswd -a $USER docker
newgrp docker

Login to Docker Hub

sudo docker login