Build, Ship and Run Any App, Anywhere. We don’t have to worry about where our applications are running. If we neeed to do a server update, we don’t have to fear anymore. We can move away the applications running on this server very quickly. Then we can do server updates and afterwards if everything went well, we move back our applications to the updated server. With docker our application infrastructure became much simpler. dropbit therefore decided to share our experience with docker. From now on we will blog regularly about docker. In this first blog we just show some important commmands, you have to now. We are sure you will become fond of docker too. It’s just a matter of time.
pull an image from the docker hub
The docker hub is a big collection of base images , which you can use for your applications.
docker pull motiejus/systemd_centos7
show local images
build an image from an own Dockerfile
docker build -t myimage . docker build -no-cache -t myimage .
delete an image
docker rmi myimage
delete all images
sudo docker rmi $(sudo docker images -f "dangling=true" -q)
show running containers
show all containers
docker ps -a
run a container from an image
docker run --name myimage_instance -i -t myimage:latest
run a container in the background
docker run -d --name myimage_instance -i -t myimage:latest
stop a container
docker stop myimage_instance
delete a container
docker rm myimage_instance
delete all containers
docker rm $(docker ps -a -q)
To get the container’s ip address, run the 2 commands
docker ps docker inspect container_name | grep IPAddress
push an image to a local repository
docker tag bd393c80a9ca localhost:5000/dropbitbase docker push localhost:5000/dropbitbase
linking container together
This overview was thought just for our team initially. But why not sharing the list with you. If you have some more important commands to add to the overwiew, then just let us know.