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# Helpful Docker commands and code snippets
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### CONTAINERS ###
docker ps -a # list all containers
docker stop $(docker ps -a -q) #stop ALL containers
docker rm $(docker ps -a -q) # remove ALL containers
docker rm $(sudo docker ps --before="container_id_here" -q) # can also filter
# helps with error: 'unexpected end of JSON input'
docker rm -f $(docker ps -a -q) # Remove all in one command with --force
docker exec -i -t "container_name_here" /bin/bash # Go to container command line
# to exit above use 'ctrl p', 'ctrl q' (don't exit or it will be in exited state)

### IMAGES ###
# list images and containers
docker images # all images
docker images | grep "search_term_here"
# remove image(s) (must remove associated containers first)
docker rmi image_id_here # remove image(s)
docker rmi $(docker images -q) # remove ALL images!!!
docker rmi $(docker images | grep "^<none>" | awk "{print $3}") # remove all <none> images
docker rmi $(docker images | grep "search_term_here") # ie. "2 days ago"

### BOTH IMAGES AND CONTAINERS ###
docker images && docker ps -a
# stop and remove containers and associated images with common grep search term
docker ps -a --no-trunc  | grep "search_term_here" | awk "{print $1}" | xargs -r --no-run-if-empty docker stop && \
docker ps -a --no-trunc  | grep "search_term_here" | awk "{print $1}" | xargs -r --no-run-if-empty docker rm && \
docker images --no-trunc | grep "search_term_here" | awk "{print $3}" | xargs -r --no-run-if-empty docker rmi
# stops only exited containers and delete only non-tagged images
docker ps --filter 'status=Exited' -a | xargs docker stop docker images --filter "dangling=true" -q | xargs docker rmi

### NEW IMAGES/CONTAINERS ###
# create new docker container, ie. ubuntu
docker pull ubuntu:latest # 1x pull down image
docker run -i -t ubuntu /bin/bash # drops you into new container as root

### OTHER ###
# install docker first using directions for installing latest version
# https://docs.docker.com/installation/ubuntulinux/#ubuntu-trusty-1404-lts-64-bit

# other great tips: http://www.centurylinklabs.com/15-quick-docker-tips/
# fix fig / docker config: https://gist.github.com/RuslanHamidullin/94d95328a7360d843e52