Context

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Learned in this study

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Things to explore

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• Run a swarm example on multiple machines/VMs

Overview

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Notes

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• Image: An executable package (code, runtime, libraries, etc.)

• Container: An runtime instance of an image

• Repository: Collection of images

• Registry: Collection of repositories

• Task: A single container running in a service

• Stack: A group of interrelated services that share dependencies

• docker swarm init

Cheat sheet

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List Docker CLI commands

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docker docker container –help

Display Docker version and info

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docker –version docker version docker info

Execute Docker image

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docker run hello-world

List Docker images

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docker image ls

List Docker containers (running, all, all in quiet mode)

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docker container ls docker container ls –all docker container ls -aq

docker build -t friendlyhello . # Create image using this directory’s Dockerfile docker run -p 4000:80 friendlyhello # Run “friendlyname” mapping port 4000 to 80 docker run -d -p 4000:80 friendlyhello # Same thing, but in detached mode docker container ls # List all running containers docker container ls -a # List all containers, even those not running docker container stop # Gracefully stop the specified container docker container kill # Force shutdown of the specified container docker container rm # Remove specified container from this machine docker container rm $(docker container ls -a -q) # Remove all containers docker image ls -a # List all images on this machine docker image rm # Remove specified image from this machine docker image rm $(docker image ls -a -q) # Remove all images from this machine docker login # Log in this CLI session using your Docker credentials docker tag username/repository:tag # Tag for upload to registry docker push username/repository:tag # Upload tagged image to registry docker run username/repository:tag # Run image from a registry

docker stack ls # List stacks or apps docker stack deploy -c # Run the specified Compose file docker service ls # List running services associated with an app docker service ps # List tasks associated with an app docker inspect # Inspect task or container docker container ls -q # List container IDs docker stack rm # Tear down an application docker swarm leave –force # Take down a single node swarm from the manager

See also

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References

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