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Code Issues Releases Activity

Improved docker image pruning

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This commit is contained in:
DerLinkman 2023-10-19 12:31:13 +02:00
parent 61e23b6b81
commit 6c6fde8e2e
1 changed files with 30 additions and 37 deletions
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67
update.sh
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@ -32,51 +32,44 @@ prefetch_images() {
}
docker_garbage() {
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
IMGS_TO_DELETE=()
for container in $(grep -oP "image: \Kmailcow.+" "${SCRIPT_DIR}/docker-compose.yml"); do
REPOSITORY=${container/:*}
TAG=${container/*:}
V_MAIN=${container/*.}
V_SUB=${container/*.}
EXISTING_TAGS=$(docker images | grep ${REPOSITORY} | awk '{ print $2 }')
for existing_tag in ${EXISTING_TAGS[@]}; do
V_MAIN_EXISTING=${existing_tag/*.}
V_SUB_EXISTING=${existing_tag/*.}
# Not an integer
[[ ! $V_MAIN_EXISTING =~ ^[0-9]+$ ]] && continue
[[ ! $V_SUB_EXISTING =~ ^[0-9]+$ ]] && continue
if [[ $V_MAIN_EXISTING == "latest" ]]; then
echo "Found deprecated label \"latest\" for repository $REPOSITORY, it should be deleted."
IMGS_TO_DELETE+=($REPOSITORY:$existing_tag)
elif [[ $V_MAIN_EXISTING -lt $V_MAIN ]]; then
echo "Found tag $existing_tag for $REPOSITORY, which is older than the current tag $TAG and should be deleted."
IMGS_TO_DELETE+=($REPOSITORY:$existing_tag)
elif [[ $V_SUB_EXISTING -lt $V_SUB ]]; then
echo "Found tag $existing_tag for $REPOSITORY, which is older than the current tag $TAG and should be deleted."
IMGS_TO_DELETE+=($REPOSITORY:$existing_tag)
declare -A IMAGES_INFO
COMPOSE_IMAGES=($(grep -oP "image: \Kmailcow.+" "${SCRIPT_DIR}/docker-compose.yml"))
for existing_image in $(docker images --format "{{.ID}}:{{.Repository}}:{{.Tag}}" | grep 'mailcow/'); do
ID=$(echo $existing_image | cut -d ':' -f 1)
REPOSITORY=$(echo $existing_image | cut -d ':' -f 2)
TAG=$(echo $existing_image | cut -d ':' -f 3)
if [[ " ${COMPOSE_IMAGES[@]} " =~ " ${REPOSITORY}:${TAG} " ]]; then
continue
else
IMGS_TO_DELETE+=("$ID")
IMAGES_INFO["$ID"]="$REPOSITORY:$TAG"
fi
done
done
if [[ ! -z ${IMGS_TO_DELETE[*]} ]]; then
echo "Run the following command to delete unused image tags:"
echo
echo " docker rmi ${IMGS_TO_DELETE[*]}"
echo
if [ ! $FORCE ]; then
read -r -p "Do you want to delete old image tags right now? [y/N] " response
if [[ "$response" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
docker rmi ${IMGS_TO_DELETE[*]}
echo "The following unused mailcow images were found:"
for id in "${IMGS_TO_DELETE[@]}"; do
echo " ${IMAGES_INFO[$id]} ($id)"
done
if [ ! $FORCE ]; then
read -r -p "Do you want to delete them to free up some space? [y/N] " response
if [[ "$response" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
docker rmi ${IMGS_TO_DELETE[*]}
else
echo "OK, skipped."
fi
else
echo "OK, skipped."
echo "Running in forced mode! Force removing old mailcow images..."
docker rmi ${IMGS_TO_DELETE[*]}
fi
else
echo "Running image removal without extra confirmation due to force mode."
docker rmi ${IMGS_TO_DELETE[*]}
fi
echo -e "\e[32mFurther cleanup...\e[0m"
echo "If you want to cleanup further garbage collected by Docker, please make sure all containers are up and running before cleaning your system by executing \"docker system prune\""
echo -e "\e[32mFurther cleanup...\e[0m"
echo "If you want to cleanup further garbage collected by Docker, please make sure all containers are up and running before cleaning your system by executing \"docker system prune\""
fi
}