Docker utils

docker-backup-all-images.sh

docker images | tail -n +2 | grep -v "none" | awk '{printf("%s:%s\n", $1, $2)}' | while read IMAGE; do
  echo $IMAGE
  filename="${IMAGE//\//-}"
  filename="${filename//:/-}.docker-image.tar.gz"
  docker save ${IMAGE} | pigz --stdout > $filename
done

docker-backup-volume.sh

#!/bin/bash

VOLUME=${1:?'Volume name required as first argument'}

volume_switches="-v ${VOLUME}:/source/${VOLUME}"

set -x
docker run -it --rm \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /bin/docker:/bin/docker \
  -v $(pwd):/backup \
  ${volume_switches} \
  outstand/dockup:latest backup

docker-backup-volumes.sh

#!/bin/bash

if [ ! -f volumes ]; then
  echo 'Expected `volumes` file to exist'
  exit 1
fi

volume_switches=""

while read VOLUME; do
  echo $VOLUME
  volume_switches="${volume_switches} -v ${VOLUME}:/source/${VOLUME}"
done <<< "$(cat volumes)"

set -x
docker run -it --rm \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /bin/docker:/bin/docker \
  -v $(pwd):/backup \
  ${volume_switches} \
  outstand/dockup:latest backup

docker-restore-images.sh

ls *.tar.gz | while read IMAGE; do
  echo "unpigz --stdout $IMAGE | docker load"
  unpigz --stdout $IMAGE | docker load
done

docker-restore-volume.sh

#!/bin/bash

if [ -z "$1" ]; then
  echo 'Volume name required'
  exit 1
fi

VOLUME="$1"

volume_switches="-v ${VOLUME}:/source/${VOLUME}"

set -x
docker run -it --rm \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /bin/docker:/bin/docker \
  -v $(pwd):/backup \
  ${volume_switches} \
  outstand/dockup:latest restore

docker-restore-volumes.sh

#!/bin/bash

if [ ! -f volumes ]; then
  echo 'Expected `volumes` file to exist'
  exit 1
fi

volume_switches=""

while read VOLUME; do
  echo $VOLUME
  volume_switches="${volume_switches} -v ${VOLUME}:/source/${VOLUME}"
done <<< "$(cat volumes)"

set -x
docker run -it --rm \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /bin/docker:/bin/docker \
  -v $(pwd):/backup \
  ${volume_switches} \
  outstand/dockup:latest restore

docker-rm-exited

#!/bin/bash

docker rm -v $(docker ps -f 'status=exited' -q)

docker-rmi-dangling

#!/bin/bash

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

docker-volume-rm-unnamed

#!/bin/bash

if [ "$1" = '--force' ]; then
  echo '==> Removing volumes'
  docker volume rm $(docker volume ls -q -f 'dangling=true' | egrep -v '^[^0-9]+$')
  echo '==> Done'
else
  echo '==> Volumes to be deleted'
  docker volume ls -q -f 'dangling=true' | egrep -v '^[^0-9]+$'
  echo '==> Run again with --force option to remove'
fi