7
docker pull registry - get image with running registry (local docker hub)
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docker images - local images
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docker history <image> - show the building history of the image
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docker build --tag chsa/adei . - build new image using Dockerfile
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docker login --username=chsa - login to docker hub
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docker push chsa/adei - and publish on docker hub
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Working with containers
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-----------------------
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docker run -it chsa/adei /bin/bash - Create the container and start it
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-it - Interactive, i.e. terminal to the sssion
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-d - Start detached container (allows running multiple copies of the same image)
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-rm - Automatically remove on stop
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-P - Publish all listening container ports to host system (ports are not necessarily the same, find out with docker port)
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-p [host_port:virt_port] - Instruct to map ports (uses DOCKER chain in nat & default iptables)
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--link container:alias - Allow to connect to '<container>' from the newly running container as 'alias' and will also
28
add some environmental variables about it configuration (check with set | grep MYSQL)
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--volumes-from <container> - mount all mounts from the specified container (if corresponding directories exists)
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-v /path - provided a permanents storage in the specified location
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-v /host_path:/path - map a host folder in the specified location (also a single file can be mounted)
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-m 512MB - limit amount of memory available for container
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--cpuset-cpus 0-2,5 - limit CPU cores which will run container (efficiently may limit CPU usage)
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--cpu-period 2 --cpu-quota 4 - Tell CFQ scheduler to give VM 4us on CPU for each period of 2us (i.e. allow full usage of 2 CPU cores), the default period is 100,000us
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docker port adei-mysql 3306 - report there is mapped the specified port of container
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docker top adei-mysql - usage
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docker logs adei-mysql - display logs
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docker ps [-a] - list running (and terminated) containers
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docker inspect adei-mysql - get information about container (environment, mounts, etc.)
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docker exec -ti adei-mysql /bin/bash - run additional command in running container context
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docker stop/start - stop / restart stopped container
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docker attach - attach to terminal of the container
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docker commit <name> chsa/adei - save modified container as an image
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docker export -o state.tar <name> - preserve the current state
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docker rm <name> - destroy currently runnign container
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-v - remove all associated volumes
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* Remove all stopped containers
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docker rm $(docker ps -q -f status=exited)