Created
September 7, 2018 02:42
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Duplicate named volume
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#!/bin/bash | |
#Author: Guido Diepen | |
#Convenience script that can help me to easily create a clone of a given | |
#data volume. The script is mainly useful if you are using named volumes | |
#First check if the user provided all needed arguments | |
if [ "$1" = "" ] | |
then | |
echo "Please provide a source volume name" | |
exit | |
fi | |
if [ "$2" = "" ] | |
then | |
echo "Please provide a destination volume name" | |
exit | |
fi | |
#Check if the source volume name does exist | |
docker volume inspect $1 > /dev/null 2>&1 | |
if [ "$?" != "0" ] | |
then | |
echo "The source volume \"$1\" does not exist" | |
exit | |
fi | |
#Now check if the destinatin volume name does not yet exist | |
docker volume inspect $2 > /dev/null 2>&1 | |
if [ "$?" = "0" ] | |
then | |
echo "The destination volume \"$2\" already exists" | |
exit | |
fi | |
echo "Creating destination volume \"$2\"..." | |
docker volume create --name $2 | |
echo "Copying data from source volume \"$1\" to destination volume \"$2\"..." | |
docker run --rm \ | |
-i \ | |
-t \ | |
-v $1:/from \ | |
-v $2:/to \ | |
alpine ash -c "cd /from ; cp -av . /to" |
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