Clean backups older than retention time
Command can use default retention time or the one passed as argument.
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@ -1,7 +1,10 @@
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#!/bin/sh
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# This script will backup /etc/pve content :
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# 1. Make a tar to /etc/proxmox.pve/backup/
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# 1. Make an archive to a first directory (default: /etc/proxmox.pve/backup/).
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# 2. Hard link a fix archive name (pve.latest.tar.gz) to new archive
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# Easy to monitor (this path can be expected).
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# 3. Clean backups older than retention time (default: 7).
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# This script can be call by a cronjob (eg. daily).
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@ -14,6 +17,7 @@ readonly NBARGS="${#}"
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readonly DEFAULT_LOCAL_BKP_DIR="/etc/proxmox.pve/backup"
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readonly TODAY_VAR=$(date +%Y%m%d)
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readonly DEFAULT_RETENTION_TIME="7"
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## Colors
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readonly PURPLE='\033[1;35m'
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@ -25,7 +29,7 @@ readonly COLOR_DEBUG="${PURPLE}"
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usage() { # {{{
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cat <<- EOF
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usage: $PROGNAME [-d|-h|-l]
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usage: $PROGNAME [-d|-h|-l|-r]
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Backup /etc/pve content
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@ -33,6 +37,12 @@ EXAMPLES :
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- Backup /etc/pve content to ${DEFAULT_LOCAL_BKP_DIR} directory
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${PROGNAME}
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- Backup /etc/pve content to /var/backups/pve directory
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${PROGNAME} --local /var/backups/pve
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- Backup to default path and keep backups for 14 days
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${PROGNAME} --retention 14
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OPTIONS :
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-d,--debug
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Enable debug messages.
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@ -44,6 +54,10 @@ OPTIONS :
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Path to a local directory to store backup and override
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default path (${DEFAULT_LOCAL_BKP_DIR}).
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-r,--retention,--retention-time
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Backups older than retention time (default: ${DEFAULT_RETENTION_TIME})
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will be delete.
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EOF
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}
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@ -66,6 +80,12 @@ define_vars() { # {{{
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local_bkp_dir="${DEFAULT_LOCAL_BKP_DIR}"
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fi
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## }}}
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## If retention_time wasn't defined {{{
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if [ -z "${retention_time}" ]; then
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## Use default retention time to clean backups
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retention_time="${DEFAULT_RETENTION_TIME}"
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fi
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## }}}
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}
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# }}}
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@ -125,6 +145,11 @@ main() { # {{{
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chown -R backup:adm -- "${local_bkp_dir}" \
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&& chmod 'u+rwX,g+rX,o-rwx' -R -- "${local_bkp_dir}"
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## }}}
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## Clean files older than $retention_time {{{
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### OR exit with error code 4 if it fails
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find "${local_bkp_dir}" -maxdepth 1 -type f -mtime +"${retention_time}" -iname "pve.*.tar.gz" -delete \
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|| exit 4
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## }}}
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}
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# }}}
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@ -165,6 +190,12 @@ if [ ! "${NBARGS}" -eq "0" ]; then
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## Define local_bkp_dir
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local_bkp_dir="${1}"
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;;
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-r|--retention,--retention-time ) ## clean backups older than retention time
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## Move to the next argument
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shift
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## Define retention_time
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retention_time="${1}"
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;;
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* ) ## unknow option
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printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
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printf '%b\n' "---"
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