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#!/bin/bash
# options:
# remove stopped containers and untagged images
# $ ./cleanup
# remove all stopped|running containers and untagged images
# $ ./cleanup --reset
# remove containers|images| matching {repository:tag}
# pattern and untagged images
# $ ./cleanup --purge {image}
# everything
# $ ./cleanup --nuclear
function _clean_docker {
local matchExp=""
if [ "$1" == "--reset" ]; then
# Remove all containers regardless of state
docker rm -vf $(docker ps -a -q) 2>/dev/null || \
echo "No more containers to remove."
exit 0
elif [ "$1" == "--purge" ]; then
if [ -z "$2" ]; then
echo "Cannot purge. Please provide image name to purge."
exit 0
fi
matchExp=$2
# Attempt to remove running containers that are using the images we're trying to purge first.
if [[ $(docker ps --filter "name=$matchExp") ]]; then
echo "Removing running containers using the \"$2\" container image"
docker rm -vf $(docker ps -a --format "{{.Image}} {{.Names}}" | \
awk '$0 ~ matchExp {print $2}') 2>/dev/null
else
echo "No running containers using the \"$2\" container image"
fi
echo "Continue to purge container images..."
# Remove all images matching arg given after "--purge"`
docker images -q --format "{{.Repository}}:{{.Tag}}" | grep "$matchExp"
returnVal=$?
if [ $returnVal -ne 0 ]; then
echo "No \"$2\" container image found."
exit 0
else
echo "Removing all the \"$2\" container images."
docker images --format "{{.Repository}}:{{.Tag}}" | grep "$matchExp" |\
awk '$0 ~ matchExp {print $1}' | xargs docker rmi 2>/dev/null
exit 0
fi
else
# This alternate only removes "stopped" containers
docker rm -vf $(docker ps -a | grep "Exited" | \
awk '{print $2}') 2>/dev/null || echo "No stopped containers to remove."
fi
if [ "$1" == "--nuclear" ]; then
docker rm -vf $(docker ps -a -q) 2>/dev/null || \
echo "No more containers to remove."
docker rmi $(docker images -q) 2>/dev/null || \
echo "No more images to remove."
echo "Preparing to uninstall docker ....."
dpkg -l | grep Docker | awk '{print $2}' > /tmp/docker-list.txt
while read list; do
sudo apt-get remove $list -y
done </tmp/docker-list.txt
rm /tmp/docker-list.txt
else
# Remove all images which are not used by existing container
docker image prune -a || echo "No untagged images to delete."
fi
}
function _clean_ansible {
if [ "$1" == "--nuclear" ]; then
version=$(grep "ansible_version" ${kud_playbooks}/kud-vars.yml | \
awk -F ': ' '{print $2}')
sudo pip uninstall ansible==$version
fi
}
#Defining config path
INSTALLER_DIR="$(readlink -f "$(dirname "${BASH_SOURCE[0]}")")"
kud_folder=${INSTALLER_DIR}
kud_infra_folder=$kud_folder/../../deployment_infra
kud_playbooks=$kud_infra_folder/playbooks
_clean_docker $@
_clean_ansible $1
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