Docker and Docker Compose Commands Documentation

curl -fsSL https://get.docker.com | sudo sh

sudo apt update
sudo apt install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt update
sudo apt install docker-ce
sudo systemctl status docker

# Remove old Docker files
sudo apt-get remove docker docker-engine docker.io
# Install Docker
sudo apt install docker.io
# Check Docker version
docker --version
# Add user to Docker group
sudo groupadd docker
sudo usermod -aG docker <USER>
# Restart system to apply group changes

# Run a Docker image in detached mode
docker run -d --name <myimg_name> -p 8080:8080 <img_name>
# Run a specific container
docker run -d --name nginx-rev -p 8080:8080 nginx
# Run and enter a terminal inside the container
docker run -it --name ubuntu-container ubuntu

# Remove all stopped containers
docker rm $(docker ps -a -q)
# Remove all locally stored images
docker rmi $(docker images -q)
# Stop all running containers
docker stop $(docker ps -q)
# Delete all Docker images
docker image prune -a
# Delete all stopped containers
docker container prune

# Log in to private registry
docker login private-registory.io
# Run a container from private registry
docker run private-registory.io/apps/internal-append
# Push image to private registry
docker push private-registory.io/containername
# Push image to public registry
docker login
docker build . -t username/imagesname:tag
docker push username/imagesname:tag

# Get IP of all running containers
docker inspect -f '{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -q)
# View container logs
docker logs <cont_ID/name>
# Inspect container details
docker inspect <cont_ID/Name>

# Create a data volume
docker volume create data_volume
# Run a container with a data volume
docker run -v data_volume:/var/lib/mysql mysql
# Run a container with a custom system path
docker run -v /data/mysql:/var/lib/mysql mysql
# New way of mounting volume
docker run --mount type=bind,source=/data/mysql,target=/var/lib/mysql mysql

# Run a container with custom network settings
docker run ubuntu --network=none/bridge/host
# List Docker networks
docker network ls
# Create a custom network
docker network create --driver bridge --subnet 182.18.0.0/16 custom-isolated-network

mkdir -p ~/.docker/cli-plugins/
curl -SL https://github.com/docker/compose/releases/download/v2.3.3/docker-compose-linux-x86_64 -o ~/.docker/cli-plugins/docker-compose
chmod +x ~/.docker/cli-plugins/docker-compose
docker compose version

# Start containers in detached mode
docker-compose up -d
# List running containers
docker-compose ps
# View logs of containers
docker-compose logs
# Stop running containers
docker-compose stop
# Bring down containers and remove them
docker-compose down
# Pause containers
docker-compose pause
# Unpause containers
docker-compose unpause

# Edit the docker-compose.yml file
nano docker-compose.yml
# Remove specific image
docker image rm nginx:alpine

# Build Docker image with a custom Dockerfile
docker build -f /var/filepath -t custom-img-name
# Build Docker image with default Dockerfile
docker build . -t custom-image-name

# Run Docker container with environment variables
docker run -e ENVAR=variablename nginx

# CMD in Dockerfile
CMD ["command", "parameter"]
CMD command parameter
# ENTRYPOINT in Dockerfile
ENTRYPOINT ["sleep"]
ENTRYPOINT ["sleep"] CMD ["5"]
# Override ENTRYPOINT during docker run
docker run --entrypoint sleep2.0 ubuntu-image 10

# Allocate CPU resources
docker run --cpus=.5 ubuntu
# Allocate memory resources
docker run --memory=100m ubuntu

docker -H=remote-host-ip:port run nginx "etc"