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WIP: Take full path to container data as first arg 

The maximum number of args is now : 2
This commit is contained in:
Jeremy Gardais 2019-10-17 18:49:03 +02:00
parent 379e29c5b7
commit 917bf83c59
Signed by: jegardai
GPG Key ID: E759BAA22501AF32
1 changed files with 26 additions and 34 deletions
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60
docker/container.backup
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@ -3,41 +3,32 @@
# Purpose {{{ # Purpose {{{
## Backup data of a Docker container. ## Backup data of a Docker container.
## To do that, the script will : ## To do that, the script will :
## Try to stop the corresponding container (or docker if no related service is found) ## Try to stop the corresponding systemd unit (or docker if no related service is found)
## Make a archive of the container's data to a backup path ## Make a archive of the container's data to a backup path
## Clean old backup ## Clean old backup
## Restart the container service (or docker.service) ## Restart the container service (or docker.service)
# }}} # }}}
# How-to use {{{ # How-to use {{{
## The container and it's data directory should have the same name. ## First argument should be the absolut path to the container's data.
## The data directory and the container should have the same name.
# }}} # }}}
# Vars {{{ # Vars {{{
DEBUG=0 DEBUG=0
# }}} ## Manage arguments {{{
## Expect at least 1 argument and 2 maximum
# Tests {{{
## Expect at least 1 argument and 3 maximum {{{
case $# in case $# in
1 ) 1 )
ct_name="${1}"
## Absolut path to the container data ## Absolut path to the container data
docker_data_path="/srv/docker" ct_data_path="${1}"
## Absolut path to store the archives. ## Absolut path to store the archives.
## A sub-directory will be created for the container ## A sub-directory will be created for the container
docker_backup_path="/mnt/backup/docker" docker_backup_path="/mnt/backup/docker"
;; ;;
2 ) 2 )
ct_name="${1}" ct_data_path="${1}"
docker_data_path="${2}" docker_backup_path="${2}"
docker_backup_path="/mnt/backup/docker"
;;
3 )
ct_name="${1}"
docker_data_path="${2}"
docker_backup_path="${3}"
;; ;;
* ) * )
cat << HELP cat << HELP
@ -46,8 +37,10 @@ container.backup --
Backup data of a given Docker container. Backup data of a given Docker container.
EXAMPLE : EXAMPLE :
- Backup data of FIRST_DOCK container - Backup data of FIRST_CT container require the absolut path to data
container.backup FIRST_DOCK container.backup /srv/docker/FIRST_CT
- Select the directory to store the backup of hello_world container
container.backup /srv/docker/hello_world /media/usb/docker.backup
HELP HELP
@ -55,30 +48,29 @@ HELP
;; ;;
esac esac
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Args management — Container name to backup : ${ct_name} ." ct_name=$(basename -- "${ct_data_path}")
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Args management — Path to Docker data : ${docker_data_path} ." ## }}}
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Args management — Path to store the backup : ${docker_backup_path} ."
# }}} # }}}
## Ensure Docker data directory exists {{{
if [ ! -d "${docker_data_path}" ]; then # Tests {{{
printf '\e[0;31m%-6s\e[m\n' "Docker data directory doesn't seems available : ${docker_data_path} ."
## Ensure container data directory exists {{{
if [ ! -d "${ct_data_path}" ]; then
printf '\e[0;31m%-6s\e[m\n' "Docker data directory doesn't seems available : ${ct_data_path} ."
exit 1 exit 1
else
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test arg — Path to Docker data : ${ct_data_path} ."
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test arg — Container name to backup : ${ct_name} ."
fi fi
## }}} ## }}}
## Ensure backup directory exists {{{ ## Ensure backup directory exists {{{
if [ ! -d "${docker_backup_path}" ]; then if [ ! -d "${docker_backup_path}" ]; then
printf '\e[0;31m%-6s\e[m\n' "Backup directory doesn't seems available : ${docker_backup_path} ." printf '\e[0;31m%-6s\e[m\n' "Backup directory doesn't seems available : ${docker_backup_path} ."
exit 1 exit 1
else
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Test arg — Path to store the backup : ${docker_backup_path} ."
fi fi
## }}} ## }}}
## Ensure container data directory exists {{{
if [ ! -d "${docker_data_path}/${ct_name}" ]; then
printf '\e[0;31m%-6s\e[m\n' "Container directory doesn't seems available : ${docker_data_path}/${ct_name} ."
exit 1
fi
## }}}
# }}} # }}}
# Get container service name {{{ # Get container service name {{{
@ -89,7 +81,7 @@ if [ "${ct_service_name}" = "" ]; then
ct_service_name="docker.service" ct_service_name="docker.service"
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Service name — No specific service found for ${ct_name} container, the ${ct_service_name} will be stopped." [ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Service name — No specific service found for ${ct_name} container, the ${ct_service_name} will be stopped."
else else
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Service name — Service name of the container to backup : ${ct_service_name} ." [ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6s\e[m\n' "DEBUG : Service name — Service name of ${ct_name} container to stop : ${ct_service_name} ."
fi fi
# }}} # }}}