Servicedock: Webgui for Docker Swarm. Manage Docker Swarm a a Service.
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#!/bin/bash -e
function get-volumes() {
local vols=""
for vol in ${*}; do
local vf=$(docker inspect -f '{{.HostConfig.VolumesFrom}}' ${vol} | sed -n 's,^\[\(.*\)\]$,\1,p')
if test -n "$vf"; then
vols+=" "$(get-volumes $vf)
fi
vols+=" "$(docker inspect -f '{{.Config.Volumes}}' ${vol} | sed -n 's,^map\[\(.*\)\]$,\1,p' | sed 's,:[^ ]*,,g')
done
echo ${vols} | tr '[ ]' '[\n]' | sort | uniq | tr '[\n]' '[ ]'
}
backup=""
volumes=""
infile=""
tofile=""
toserver=""
tocontainer=""
while test $# -gt 0; do
case "$1" in
(-h|--help)
cat <<EOF
$0 -b [OPTIONS]
OPTIONS:
-b, --backup <container> name of the docker container to backup
-v, --volume <volume> add volume path to backup from container
-a, --auto automatically detect volumes to backup from container
-i, --in-file <file> take already existing backup file to import
-s, --to-server <server> copy backup to docker instance on ssh server
-c, --to-container <container> write backup into container on ssh server
-o, --to-file <file> write backup to file
DESCRIPTION:
Take docker backups and copy them to a file or restore them into a
docker instance on an ssh target server.
Note: Use ssh key exchange to prevent password query.
Note: Only volume paths are backed-up correctly
EXAMPLE:
$0 -b wordpress -a -o /tmp/wordpress.bak.tar.bz2
$0 -i /tmp/wordpress.bak.tar.bz2 -c wordpress
$0 -b backup-test -a -s server -c backup-test
EOF
exit 0
;;
(-b|--backup)
shift
backup="$1"
;;
(-i|--in-file)
shift
infile="$1"
;;
(-o|--to-file)
shift
tofile="$1"
;;
(-s|--to-server)
shift
toserver="$1"
;;
(-c|--to-container)
shift
tocontainer="$1"
;;
(-a|--auto)
if test -z "$backup"; then
echo "**** Error: --auto first requires --backup, try $0 --help" 1>&2
exit 1
fi
volumes+=" "$(get-volumes $backup)
;;
(-v|--volume)
shift
volumes+=("$1")
;;
(*)
echo "**** Error: unknown argument $1, try $0 --help" 1>&2
exit 1
;;
esac
if test $# -eq 0; then
echo "**** Error: missing argument, try $0 --help" 1>&2
exit 1
fi
shift
done
if test -n "$backup"; then
if test -z "${volumes}"; then
echo "**** Error: no volumes to backup, try $0 --help" 1>&2
exit 1
fi
elif test -z "$infile"; then
echo "**** Error: no input source specified, try $0 --help" 1>&2
exit 1
fi
if test -n "$toserver"; then
if test -z "$tocontainer"; then
echo "**** Error: no target container specified, try $0 --help" 1>&2
exit 1
fi
elif test -z "$tofile" -a -z "$tocontainer";then
echo "**** Error: no target specified, try $0 --help" 1>&2
exit 1
fi
(
if test -n "$backup"; then
docker run --rm -i -w / --volumes-from $backup ubuntu tar cjP ${volumes}
elif test -n "$infile"; then
cat "$infile"
fi
) | (
if test -n "$toserver"; then
ssh $toserver docker run --rm -i -w / --volumes-from $tocontainer ubuntu tar xjP
elif test -n "$tocontainer"; then
docker run --rm -i -w / --volumes-from $tocontainer ubuntu tar xjP
elif test -n "$tofile";then
cat > "$tofile"
fi
)