cb8226128e
We recently updated our borg backup system to support explicit purging of backups. When purged there are no longer any backups to prune so we need to skip any backups in this state. Update the pruning script to do so. Change-Id: Ib23a72c949c05855176fe54637f406b7797b37ae
68 lines
2.2 KiB
Bash
68 lines
2.2 KiB
Bash
#!/bin/bash
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set -e
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echo "This script will prune each archive in the backups of all backed up hosts"
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echo "Enter 'noop' to test, or 'prune' to actually prune"
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read -p "Operation: " borg_op
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if [[ ${borg_op} == 'noop' ]]; then
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BORG_OP='--dry-run'
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elif [[ ${borg_op} == 'prune' ]]; then
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BORG_OP=''
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if [ -z ${NO_LOG_FILE+x} ]; then
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LOG_FILE="/opt/backups/prune-$(date '+%Y-%m-%d-%H-%M-%S').log"
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echo "*** Logging output to ${LOG_FILE}"
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exec 1>${LOG_FILE}
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exec 2>&1
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fi
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else
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echo "*** Invalid input"
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exit 1
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fi
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pushd /opt/backups
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for u in borg-*; do
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BORG_BASE=/opt/backups/$u
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BORG_REPO=${BORG_BASE}/backup
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BORG_RETIRED=${BORG_BASE}/.retired
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_prune_flags='--keep-daily 7 --keep-weekly 4 --keep-monthly 12'
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_retired=''
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if [[ -f "${BORG_RETIRED}" ]] && [[ ! -d "${BORG_REPO}" ]]; then
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# This repo was retired and purged. We don't need to prune it.
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echo "$(date) Skipping ${BORG_REPO} it is retired and purged."
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continue
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elif [[ -f "${BORG_RETIRED}" ]]; then
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_prune_flags='--keep-daily 1'
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_retired=' (retired)'
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fi
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sudo BORG_OP=${BORG_OP} BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK=yes BORG_REPO=${BORG_REPO} _retired="${_retired}" _prune_flags="${_prune_flags}" -u ${u} -s <<'EOF'
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# Look at all archives and strip the timestamp, leaving just the archive names
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# We limit the prune by --prefix so each archive is considered separately
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# Long-running aborted backups might leave a ".checkpoint" archive around; ignore
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# these as prune will remove them automatically
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#
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# Note we are assuming the archives are in the format made by our backup scripts,
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# which include -YYYY-MM-DDTHH:MM:SS on the end.
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archives=$(/opt/borg/bin/borg list ${BORG_REPO} | awk '$1 !~ /\.checkpoint$/ { print substr($1, 0, length($1)-20) }' | sort | uniq)
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echo "+------"
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echo "| $(date) Pruning ${BORG_REPO}${_retired}"
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for prefix in ${archives};
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do
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echo "| $(date) - archive ${prefix}"
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/opt/borg/bin/borg prune --prefix ${prefix} ${BORG_OP} --verbose --list --show-rc ${_prune_flags}
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done
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echo "| $(date) done!"
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echo "+------"
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echo
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EOF
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done
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