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127 lines
4.9 KiB
Bash
Executable File
127 lines
4.9 KiB
Bash
Executable File
#!/bin/bash
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source /cis/core/base.module.sh
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base.loadModule composition
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base.loadModule print
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function cleanup() {
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local _KEEP_MINUTELY _KEEP_HOURLY _KEEP_DAILY _KEEP_MONTHLY
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_KEEP_MINUTELY=5
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_KEEP_HOURLY=24
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_KEEP_DAILY=7
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_KEEP_MONTHLY=36
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readonly _KEEP_MINUTELY _KEEP_HOURLY _KEEP_DAILY _KEEP_MONTHLY
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local _COMPOSITION _ZFS
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composition.printAll | while read -r _COMPOSITION; do
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_ZFS="$(composition.printZFS "${_COMPOSITION}")"
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[ -n "${_ZFS}" ] \
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&& printf -- "Cleaning snapshots of: '%b'\n" "${_ZFS}" \
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&& local _LIST=( $(zfs list -t snap -H -o name -S creation "${_ZFS}" | grep -F '@SNAP' ) )
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# Nothing to do
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[ ${#_LIST[@]} -eq 0 ] && continue
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_COUNT_MINUTELY=0
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_COUNT_HOURLY=0
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_COUNT_DAILY=0
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_COUNT_MONTHLY=0
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for _SNAPSHOT in "${_LIST[@]}"; do
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case "${_SNAPSHOT}" in
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*"@SNAPMINUTELY_"*)
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((_COUNT_MINUTELY++))
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if [ ${_COUNT_MINUTELY} -gt ${_KEEP_MINUTELY} ]; then
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print.message " - remove snapshot (${_COUNT_MINUTELY}): '@${_SNAPSHOT#*@}' ... "
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zfs destroy "${_SNAPSHOT}" \
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&& print.done \
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|| print.fail
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fi
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;;
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*"@SNAPHOURLY_"*)
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((_COUNT_HOURLY++))
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if [ ${_COUNT_HOURLY} -gt ${_KEEP_HOURLY} ]; then
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print.message " - remove snapshot (${_COUNT_HOURLY}): '@${_SNAPSHOT#*@}' ... "
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zfs destroy "${_SNAPSHOT}" \
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&& print.done \
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|| print.fail
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fi
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;;
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*"@SNAPDAILY_"*)
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((_COUNT_DAILY++))
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if [ ${_COUNT_DAILY} -gt ${_KEEP_DAILY} ]; then
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print.message " - remove snapshot (${_COUNT_DAILY}): '@${_SNAPSHOT#*@}' ... "
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zfs destroy "${_SNAPSHOT}" \
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&& print.done \
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|| print.fail
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fi
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;;
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*"@SNAPMONTHLY_"*)
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((_COUNT_MONTHLY++))
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if [ ${_COUNT_MONTHLY} -gt ${_KEEP_MONTHLY} ]; then
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print.message " - remove snapshot (${_COUNT_MONTHLY}): '@${_SNAPSHOT#*@}' ... "
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zfs destroy "${_SNAPSHOT}" \
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&& print.done \
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|| print.fail
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fi
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;;
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esac
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done
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done
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}
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function snapshot() {
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local _MINUTE _HOUR _DAY _MONTH
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_MINUTE="$(date -u "+%Y-%m-%d_%H:%M")Z"
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_HOUR="${_MINUTE:0:13}Z"
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_DAY="${_MINUTE:0:10}Z"
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_MONTH="${_MINUTE:0:7}Z"
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readonly _MINUTE _HOUR _DAY _MONTH
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[ ! -d /tmp/locks ] && mkdir /tmp/locks
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local _COMPOSITION _MODE _ZFS
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composition.printAllRunningOnThisHost | while read -r _COMPOSITION; do
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_MODE="${1:-"$(cat "${CIS[COMPOSITIONS]}${_COMPOSITION}/snapshot-mode" 2> /dev/null)"}"
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_MODE="${_MODE:-"HOURLY"}"
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_ZFS="$(composition.printZFS "${_COMPOSITION}")"
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if [ -n "${_ZFS}" ]; then
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(
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flock -n 9 || return 1
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! composition.shouldRunOnThisHost "${_COMPOSITION}" \
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&& printf -- "ZFS will be skipped, because this host '%b' is not running the composition:\n" "${CIS[HOST]}" >&2 \
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&& printf -- " - Composition : %b\n" "${_COMPOSITION}" >&2 \
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&& printf -- " - Running host: %b\n" "$(composition.printRunningHost "${_COMPOSITION}")" >&2 \
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&& continue
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case "${_MODE:?"Missing MODE"}" in
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MINUTELY) zfs snapshot "${_ZFS}@SNAPMINUTELY_${_MINUTE}" 2> /dev/null \
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&& print.success "Snapshot created: '${_ZFS}@SNAPMINUTELY_${_MINUTE}'" ;& # Forces execution to continue in the next block
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HOURLY) zfs snapshot "${_ZFS}@SNAPHOURLY_${_HOUR}" 2> /dev/null \
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&& print.success "Snapshot created: '${_ZFS}@SNAPHOURLY_${_HOUR}'" ;&
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DAILY) zfs snapshot "${_ZFS}@SNAPDAILY_${_DAY}" 2> /dev/null \
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&& print.success "Snapshot created: '${_ZFS}@SNAPDAILY_${_DAY}'" ;&
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MONTHLY) zfs snapshot "${_ZFS}@SNAPMONTHLY_${_MONTH}" 2> /dev/null \
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&& print.success "Snapshot created: '${_ZFS}@SNAPMONTHLY_${_MONTH}'" ;;
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NONE) ;;
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*) print.warn "No valid mode to create snapshots: '${_MODE}'" ;;
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esac
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) 9>>/tmp/locks/snapshot.${_COMPOSITION}.lock
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fi
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done
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}
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# Parameter 1: Only one of these values (MINUTELY, HOURLY, DAILY, MONTHLY, NONE) are allowed, or empty.
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base.set MODE "${1}" '^(MINUTELY|HOURLY|DAILY|MONTHLY|NONE)$' optional
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snapshot "${MODE}"
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cleanup
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exit 0
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