2019-10-22 18:34:15 +02:00
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#!/bin/sh
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# Purpose {{{
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## Ask to backup data of all Docker containers with a second script.
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# }}}
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# How-to use {{{
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## 1. Needs container.backup script, in the same directory
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## cf. https://git.ipr.univ-rennes1.fr/cellinfo/scripts/src/master/docker/container.backup
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# wget https://git.ipr.univ-rennes1.fr/cellinfo/scripts/src/master/docker/container.backup
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## First argument should be the path to store the backup.
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## Second argument can be the absolut path to the Docker directory for containers.
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# }}}
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# Vars {{{
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2019-10-22 18:34:59 +02:00
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DEBUG=1
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2019-10-22 18:34:15 +02:00
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script_wd=$(dirname "${0}")
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## Manage arguments {{{
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## Expect at least 1 argument and 2 maximum
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case $# in
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1 )
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## Absolut path to store the archives.
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## A sub-directory will be created for each container
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docker_backup_path="${1}"
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## Absolut path to Docker containers
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docker_ct_path="/srv/dock"
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;;
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2 )
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docker_backup_path="${1}"
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docker_ct_path="${2}"
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;;
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* )
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cat << HELP
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container.backup.all --
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Backup all data of all Docker's containers.
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EXAMPLE :
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- Backup all data of default Docker path (/srv/dock) to /media/usb/docker.backup
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container.backup.all /media/usb/docker.backup
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- Choose a specific path where containers are stored
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container.backup.all /media/usb/docker.backup /my/path/to/docker
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HELP
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exit 1
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;;
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esac
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## }}}
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temp_ct_list_file="/tmp/container.list"
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# }}}
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# Tests {{{
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## Ensure backup directory exists {{{
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if [ ! -d "${docker_backup_path}" ]; then
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printf '\e[0;31m%-6s\e[m\n' "Backup directory doesn't seems available : ${docker_backup_path} ."
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exit 1
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else
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test arg — Path to store the backup : ${docker_backup_path} ."
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fi
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## }}}
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## Ensure Docker directory exists {{{
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if [ ! -d "${docker_ct_path}" ]; then
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printf '\e[0;31m%-6s\e[m\n' "Docker data directory doesn't seems available : ${docker_ct_path} ."
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exit 1
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else
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test arg — Path to Docker data : ${docker_ct_path} ."
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fi
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## }}}
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# }}}
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# Get the list of containers name to backup
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find "${docker_ct_path}" -mindepth 1 -maxdepth 1 -type d > "${temp_ct_list_file}"
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# For each container in the list
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while IFS= read -r ct_path
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do
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[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : While loop — The data of ${ct_path} container will be backup."
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"${script_wd}/container.backup" "${ct_path}" "${docker_backup_path}"
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done < "${temp_ct_list_file}"
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# Clean temp file
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rm -f -- "${temp_ct_list_file}"
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# }}}
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exit 0
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