Migrate from ubuntu to alpine:3.6 #5
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| FROM alpine:3.6 | ||
| MAINTAINER Kevin Wittek <[email protected]> | ||
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| RUN apk update | ||
| RUN apk add docker | ||
| RUN apk add py-pip | ||
| RUN apk add bash | ||
| RUN apk add gzip | ||
| RUN rm -rf /var/cache/apk/* | ||
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| RUN pip install docker-compose | ||
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| COPY docker_volume_backup.sh / | ||
| COPY docker_full_backup.sh / | ||
| ENTRYPOINT ["/docker_volume_backup.sh", "/project/docker-compose.yml", "/docker_full_backup.sh"] | ||
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| #!/bin/bash | ||
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| # get location of script | ||
| SOURCE="${BASH_SOURCE[0]}" | ||
| while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink | ||
| DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" | ||
| SOURCE="$(readlink "$SOURCE")" | ||
| [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located | ||
| done | ||
| DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )" | ||
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| # | ||
| if [ -z "$1" ] ; then | ||
| docker build -t docker_volume_backup "$DIR" | ||
| else | ||
| docker build -t docker_volume_backup "$1" | ||
| fi |
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| #!/bin/bash | ||
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| alpine=alpine:3.6 | ||
| cdir=containers | ||
| vdir=volumes | ||
| compose_file_path=$1 | ||
| project_name=${2,,} | ||
| backup_path=$3 | ||
| backup_or_restore=${4:-backup} | ||
| date_suffix=${5:-$(date -I)} | ||
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| DO_CONTAINER=${EXCLUDE_CONTAINER:-0} | ||
| DO_VOLUMES=${EXCLUDE_VOLUMES:-0} | ||
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| set -e | ||
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| function backup_volume { | ||
| volume_name=$1 | ||
| backup_destination=$2 | ||
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| docker run --rm -v $volume_name:/data -v $backup_destination:/backup $alpine tar -zcvf /backup/$vdir/$volume_name-$date_suffix.tar.gz /data | ||
| } | ||
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| function backup_container { | ||
| container_id=$1 | ||
| backup_destination=$2 | ||
| fname="$backup_destination/$cdir/$container_id-$date_suffix.tar.gz" | ||
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| docker export $container_id | gzip > $fname | ||
| } | ||
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| function restore_volume { | ||
| volume_name=$1 | ||
| backup_destination=$2 | ||
| date=$date_suffix | ||
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| docker run --rm -v $volume_name:/data $alpine find /data -mindepth 1 -delete | ||
| docker run --rm -v $volume_name:/data -v $backup_destination:/backup $alpine tar -xvf /backup/$vdir/$volume_name-$date.tar.gz -C . | ||
| } | ||
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| function restore_container { | ||
| container_id=$1 | ||
| backup_destination=$2 | ||
| date=$date_suffix | ||
| fname="$backup_destination/$cdir/$container_id-$date_suffix.tar.gz" | ||
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| ["$(docker ps -a | grep $container_id)"] && docker rm -f $container_id | ||
| gunzip -c $fname | docker load | ||
| } | ||
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| function main { | ||
| echo "Docker backup script for project: $project_name" | ||
| echo " mode: $backup_or_restore" | ||
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| if [ "$backup_or_restore" == "backup" ] ; then | ||
| mkdir -p $backup_path/$cdir | ||
| mkdir -p $backup_path/$vdir | ||
| fi | ||
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| echo " stopping running containers" | ||
| docker-compose -f $compose_file_path -p $project_name stop | ||
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| if [ $DO_CONTAINER != 0 ] ; then | ||
| echo " container are excluded" | ||
| else | ||
| echo " enter container images" | ||
| #declare -a containers=() | ||
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| #readarray -t containers < <(docker container ls --all -f name=$project_name | awk '{if (NR > 1) print $1}') | ||
| #for c in "${containers[@]}" | ||
| #do | ||
| #docker ps --all --quiet -f name=$project_name | while read -sr c ; do | ||
| docker-compose -f $compose_file_path -p $project_name ps -q | while read -sr c ; do | ||
| if [ "$backup_or_restore" == "backup" ] | ||
| then | ||
| echo " perform container backup: $c" | ||
| backup_container $c $backup_path | ||
| fi | ||
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| if [ "$backup_or_restore" == "restore" ] | ||
| then | ||
| echo " restore container from backup: $c" | ||
| restore_container $c $backup_path | ||
| fi | ||
| done | ||
| fi | ||
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| if [ $DO_VOLUMES != 0 ] ; then | ||
| echo " volumes are excluded" | ||
| else | ||
| echo " mounting volumes and performing backup/restore..." | ||
| #declare -a volumes=() | ||
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| #readarray -t volumes < <(docker volume ls -f name=$project_name | awk '{if (NR > 1) print $2}') | ||
| #for v in "${volumes[@]}" ; do | ||
| docker-compose -f $compose_file_path -p $project_name config --volumes | while read -sr line ; do | ||
| # TODO: if it possible to get volumes ID's, put it in here! | ||
| v="${project_name}_$line" | ||
| if [ "$backup_or_restore" == "backup" ] | ||
| then | ||
| echo " perform volume backup: $v" | ||
| backup_volume $v $backup_path | ||
| fi | ||
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| if [ "$backup_or_restore" == "restore" ] | ||
| then | ||
| echo " restore volume from backup: $v" | ||
| restore_volume $v $backup_path | ||
| fi | ||
| done | ||
| fi | ||
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| echo " restarting containers" | ||
| docker-compose -f $compose_file_path -p $project_name start | ||
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| # write date_id to file | ||
| echo "$date_suffix $project_name" >> "$backup_path/stored-backups.ids" | ||
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| echo "finished" | ||
| } | ||
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| main | ||
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We should squash these layers into a single layer (so only one RUN statement). I know it wasn't done in the original version, but that's how it should be done ;)