A CheatSheet to get you started with docker
This is for Ubuntu
- Install few packages which are required beforehand
sudo apt install apt-transport-https ca-certificates curl software-properties-common
- Add GPG key
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
- Add Docker repository to apt sources
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
- Update your existing list of packages
sudo apt update
- Install Docker-ce
sudo apt install docker-ce
- Start Docker Process
sudo systemctl status docker
* Check all docker containers
docker ps -a
* Check all started docker containers
docker ps
* Start a stopped container
docker start <container-name>
* Stop a container
docker stop <container-name>
* Remove all containers
docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)
* Attach to a container
docker start <container-name>
docker attach <container-name>
* Run bash shell in container
docker container exec -it <container-name> bash
* Delete container forcefully
docker container rm -f <container-name>
* Download a new docker image
docker pull <image-name:version>
* Docker Stats
docker stats
* See all Docker images
docker images
* Delete an Image
docker rmi <image-name>
* Remove all images
docker image prune -a
* Remove unused images
docker image prune
* Check all the networks created by docker
docker network ls
* Create Image from base container
docker commit {base image} {new image name}
* Launch container from an image
docker run -itd --name <container-name> <image-name>
i: interactive
t: tty
d: background process
* Launch container with specific port
docker run -it -p <host-port>:<docker-port> <image-name>
* Lauching an nginx container which runs on port 80
docker pull nginx
docker run -itd -p 80:80 --name webserver nginx
Check using docker ps container should be present
* Check a running container
docker inspect <container-name>
* Build a docker image using a Dockerfile
docker build -t <image name you want to give> <Dockerfile path>
* Push image to docker hub
docker login (Login to docker hub only needed once)
docker tag <localsystem image name> <username>/<preferred image name>
docker push <username>/<preferred image name>
- Download the latest version of Docker Compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
- Change file permissions
sudo chmod +x /usr/local/bin/docker-compose
- Linking
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
- Verify Installation
docker–compose –version
- Launch containers using docker compose file
docker-compose up
- Launch in background
docker-compose up -d
- Check logs of docker compose
docker-compose logs
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