Docker

Stop & Remove all containers

Use -v to delete the volume associated with the container. Fixes no space left on disk.

docker stop $(docker ps -a -q)
docker rm -v $(docker ps -a -q)

Delete untagged images

• docker rmi -f $(docker images -qf "dangling=true")

Delete tagged image

• docker rmi -f image_tag

List all images

• docker images

Tag image

• docker tag a12345b6789c image_tag

Grant docker user root

Used only for debugging.

# *************************** grant docker user root ***************************
# must install sudo or will get "sudo: not found" error
# todo: remove this before publishing
USER root
RUN set -x \
    && apt-get update -qq \
    && apt-get install -y -qq --no-install-recommends sudo \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
    && echo 'docker:docker'|chpasswd \
    && adduser docker sudo

USER docker
RUN set -x \
    && echo "docker" | sudo -S echo "hi"
# ************************* end grant docker user root *************************