Difference between revisions of "Docker goodies"
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| + | === Copy a file from a container to the host system === | ||
| + | * http://stackoverflow.com/a/22050116/1497139 | ||
| + | <source lang='bash'> | ||
| + | docker cp <containerId>:/file/path/within/container /host/path/target | ||
| + | </source> | ||
| + | |||
| + | === Attach to a running container === | ||
| + | * http://askubuntu.com/questions/505506/how-to-get-bash-or-ssh-into-a-running-container-in-background-mode | ||
| + | * http://askubuntu.com/a/507009/129227 | ||
| + | <source lang='bash'> | ||
| + | docker exec -it $containername /bin/bash | ||
| + | </source> | ||
| + | |||
=== Remove untagged docker images === | === Remove untagged docker images === | ||
http://stackoverflow.com/a/28377696/1497139 | http://stackoverflow.com/a/28377696/1497139 | ||
| Line 4: | Line 17: | ||
docker rmi -f $(docker images -f "dangling=true" -q) | docker rmi -f $(docker images -f "dangling=true" -q) | ||
</source> | </source> | ||
| + | === get logs of a container === | ||
| + | <source lang='bash'> | ||
| + | docker logs $containername | ||
| + | </source> | ||
| + | === remove old unused docker containers === | ||
| + | * http://stackoverflow.com/a/17237701/1497139 | ||
| + | <source lang='bash'> | ||
| + | docker ps -a | grep 'weeks ago' | awk '{print $1}' | xargs --no-run-if-empty docker rm | ||
| + | </source> | ||
| + | |||
| + | |||
| + | === Support for build env variables === | ||
| + | Upcoming feature in 1.9? | ||
| + | * https://github.com/docker/docker/issues/6822 | ||
Latest revision as of 08:15, 16 November 2015
Copy a file from a container to the host system
docker cp <containerId>:/file/path/within/container /host/path/target
Attach to a running container
- http://askubuntu.com/questions/505506/how-to-get-bash-or-ssh-into-a-running-container-in-background-mode
- http://askubuntu.com/a/507009/129227
docker exec -it $containername /bin/bash
Remove untagged docker images
http://stackoverflow.com/a/28377696/1497139
docker rmi -f $(docker images -f "dangling=true" -q)
get logs of a container
docker logs $containername
remove old unused docker containers
docker ps -a | grep 'weeks ago' | awk '{print $1}' | xargs --no-run-if-empty docker rm
Support for build env variables
Upcoming feature in 1.9?