51 lines
1.8 KiB
Bash
51 lines
1.8 KiB
Bash
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#!/usr/bin/env bash
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backup() {
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local volume
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local target
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local target_dir
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local target_name
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volume="$1"
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target="$(realpath "$2")"
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target_dir="$(dirname "$target")"
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target_name="$(basename "$target")"
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test -z "$(docker volume ls | grep "$volume")" && { echo "Error: No such volume, aborting" >&2; exit 1; }
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test -z "$target_dir" && { echo "Error: No base folder found for target=$target" >&2; exit 2; }
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test -z "$target_name" && { echo "Error: No target name found for target=$target" >&2; exit 3; }
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set -x
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docker run --rm --user="$(id -u):$(id -g)" --mount="type=volume,source=$volume,destination=/data,ro=true" --mount="type=bind,source=$target_dir,destination=/data2" busybox tar cvf "/data2/$target_name" "/data"
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set +x
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}
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restore() {
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local volume
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local target
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local target_dir
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local target_name
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target="$(realpath "$1")"
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target_dir="$(dirname "$target")"
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target_name="$(basename "$target")"
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volume="$2"
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test -z "$(docker volume ls | grep "$volume")" && { echo "Error: No such volume, aborting" >&2; exit 1; }
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test -z "$target_dir" && { echo "Error: No base folder found for target=$target" >&2; exit 2; }
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test -z "$target_name" && { echo "Error: No target name found for target=$target" >&2; exit 3; }
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set -x
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docker run --rm --user="$(id -u):$(id -g)" --mount="type=volume,source=$volume,destination=/data" --mount="type=bind,source=$target_dir,destination=/data2" busybox /bin/sh -c "rm -rf /data/* && cd / && tar xvf '/data2/$target_name'"
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set +x
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}
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main() {
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local volumes
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volumes="$(docker volume ls | tail -n+2 | egrep -v '[a-z]+\s+[0-9a-f]+' | egrep -o '\s.+$' | sed 's/\s//g')"
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while read -r line; do
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echo "$line -> $line.tar"
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backup "$line" "$line.tar"
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done <<< "$volumes"
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}
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"$@"
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