Docker
Installing
Mac
brew install docker
Linux
curl -fsSL https://get.docker.com -o get-docker.sh
sh get-docker.sh
Usage
- Start docker:
sudo service docker start
- Get docker version:
docker version
- Get docker info:
docker info
- Get all containers:
docker ps -a (-a gets even stopped ones)
- Get all images:
docker images
- Get all volumes:
docker volume ls
- Get all networks:
docker network ls
- See all containers stats in real time (CPU, memory usage...):
docker stats
Download images
- Download an image:
docker pull nginx
- Download an image with a specific tag:
docker pull nginx:1.15.8
- Download an image with a specific tag and save it with a different name:
docker pull nginx:1.15.8 --tag myNginx:1.15.8
Running a container
- Run a container with nginx image and expose port 80:
docker run -t -d -p 80:80 --name myNginx myNginx:1.15.8
- Run a container and remove it when it stops:
docker run --rm -t -d -p 80:80 --name myNginx myNginx:1.15.8 (look at the --rm)
- Launch shell in a container:
docker exec -it myNginx /bin/bash
- Stop a container:
docker stop myNginx
Docker networking
- List networks:
docker network ls
- Create a network:
docker network create myNetwork
- Create a bridge network:
docker network create --driver bridge myNetwork. This will create a bridge interface and keep the containers isolated from the host.
- Create a MAVCLAN network:
docker network create --driver macvlan --subnet=10.7.1.0/24 --gateway=10.7.1.3 -o parent=eth0 myNetwork. This will create a macvlan interface which will give each container a different IP address. The containers will be able to communicate with the host and other containers on the same network.
- Create a IPVLAN network:
docker network create --driver ipvlan --subnet=10.7.1.0/24 --gateway=10.7.1.3 -o parent=eth0 myNetwork. This will create an ipvlan interface which will make the host to act as a router and give each container a different IP address.
- Create a none network:
docker network create --driver none myNetwork. This will not create any interface and the containers will not be able to communicate with the host or other containers.
- Run a container with a specific network:
docker run -t -d -p 80:80 --name myNginx --network myNetwork myNginx:1.15.8
Docker volumes
- Create a volume:
docker volume create myVolume
- Create a volume with a specific driver:
docker volume create --driver local --name myVolume