58 lines
2.3 KiB
Bash
58 lines
2.3 KiB
Bash
#!/bin/bash
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# Sync docker volumes between two servers
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VERSION="1.0.0"
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SOURCE=$1
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DESTINATION=$2
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set -e
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if [ -z "$SOURCE" ]; then
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echo "Source server is not specified."
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exit 1
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fi
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if [ -z "$DESTINATION" ]; then
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echo "Destination server is not specified."
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exit 1
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fi
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SOURCE_USER=$(echo $SOURCE | cut -d@ -f1)
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SOURCE_SERVER=$(echo $SOURCE | cut -d: -f1 | cut -d@ -f2)
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SOURCE_PORT=$(echo $SOURCE | cut -d: -f2 | cut -d/ -f1)
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SOURCE_VOLUME_NAME=$(echo $SOURCE | cut -d/ -f2)
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if ! [[ "$SOURCE_PORT" =~ ^[0-9]+$ ]]; then
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echo "Invalid source port: $SOURCE_PORT"
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exit 1
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fi
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DESTINATION_USER=$(echo $DESTINATION | cut -d@ -f1)
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DESTINATION_SERVER=$(echo $DESTINATION | cut -d: -f1 | cut -d@ -f2)
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DESTINATION_PORT=$(echo $DESTINATION | cut -d: -f2 | cut -d/ -f1)
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DESTINATION_VOLUME_NAME=$(echo $DESTINATION | cut -d/ -f2)
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if ! [[ "$DESTINATION_PORT" =~ ^[0-9]+$ ]]; then
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echo "Invalid destination port: $DESTINATION_PORT"
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exit 1
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fi
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echo "Generating backup file to ./$SOURCE_VOLUME_NAME.tgz"
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ssh -p $SOURCE_PORT $SOURCE_USER@$SOURCE_SERVER "docker run -v $SOURCE_VOLUME_NAME:/volume --rm --log-driver none loomchild/volume-backup backup -c pigz -v" >./$SOURCE_VOLUME_NAME.tgz
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echo ""
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if [ -f "./$SOURCE_VOLUME_NAME.tgz" ]; then
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echo "Uploading backup file to $DESTINATION_SERVER:~/$DESTINATION_VOLUME_NAME.tgz"
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scp -P $DESTINATION_PORT ./$SOURCE_VOLUME_NAME.tgz $DESTINATION_USER@$DESTINATION_SERVER:~/$DESTINATION_VOLUME_NAME.tgz
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echo ""
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echo "Restoring backup file on remote ($DESTINATION_SERVER:/~/$DESTINATION_VOLUME_NAME.tgz)"
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ssh -p $DESTINATION_PORT $DESTINATION_USER@$DESTINATION_SERVER "docker run -i -v $DESTINATION_VOLUME_NAME:/volume --log-driver none --rm loomchild/volume-backup restore -c pigz -vf < ~/$DESTINATION_VOLUME_NAME.tgz"
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echo ""
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echo "Deleting backup file on remote ($DESTINATION_SERVER:/~/$DESTINATION_VOLUME_NAME.tgz)"
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ssh -p $DESTINATION_PORT $DESTINATION_USER@$DESTINATION_SERVER "rm ~/$DESTINATION_VOLUME_NAME.tgz"
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echo ""
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echo "Local file ./$SOURCE_VOLUME_NAME.tgz is not deleted."
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echo ""
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echo "WARNING: If you are copying a database volume, you need to set the right users/passwords on the destination service's environment variables."
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echo "Why? Because we are copying the volume as-is, so the database credentials will bethe same as on the source volume."
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fi
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