mirror of
https://github.com/bashclub/zfs-housekeeping.git
synced 2024-11-07 15:31:58 +01:00
93 lines
2.1 KiB
Bash
93 lines
2.1 KiB
Bash
#! /bin/sh
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AUFRUF=$(echo "Aufruf: $0 <test|echt> <Poolfilter> <Anz. Behalte> [Snapshotfilter]")
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if [ "$3" = "" ]
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then
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echo $AUFRUF
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exit 0
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fi
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TESTECHT="$1"
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#Mit der Filter Variable kannst du die Liste der datasets beschränken für die die Snaps gelöscht werden sollen.
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FILTER="$2"
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# Wieviele behalten
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BEHALTE="$3"
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[ $BEHALTE -ge 0 ] 2>/dev/null
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if [ "$?" != "0" ]
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then
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echo "Parameter 3 keine pos. Zahl"
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echo "$AUFRUF"
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exit 0
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fi
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# Snapshots nach Muster Filtern
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MUSTER="$4"
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PruneZFSList=$(zfs list -o name -H| grep $FILTER)
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echo "# Gegrepte Datasets"
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zfs list | grep -e $FILTER -e NAME
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echo ""
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for DATASET in $PruneZFSList
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do
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echo "# Dataset: $DATASET"
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echo "# Muster: $MUSTER"
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if [ "$MUSTER" = "" ]
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then
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SNAPS=$(zfs list -r -t snap -H -o name -s creation|grep "${DATASET}@")
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else
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SNAPS=$(zfs list -r -t snap -H -o name -s creation|grep "${DATASET}@"|grep $MUSTER)
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fi
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ANZSNAPS=$(echo $SNAPS|wc -w)
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echo "# Anzahl Snaps: $ANZSNAPS"
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echo "# Behalte: $BEHALTE"
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echo "# Liste Snaps:"
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echo "$SNAPS"
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DELSNAPS=$((ANZSNAPS - BEHALTE))
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[ $DELSNAPS -gt 0 ] 2>/dev/null
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if [ "$?" != "0" ]
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then
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echo "Keine Snapshots zum löschen"
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echo ""
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continue
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fi
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echo "# Anzahl Del. Snaps: $DELSNAPS"
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echo "# Liste Del. Snaps:"
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echo "$SNAPS" | head -n $DELSNAPS
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echo "# Behalte Snaps:"
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echo "$SNAPS" | tail -n $BEHALTE
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if [ $DELSNAPS -gt 0 ]
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then
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if [ "$TESTECHT" = "echt" ]
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then
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echo "# zfs destroy wird ausgeführt"
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echo "$SNAPS" | head -n $DELSNAPS | xargs -n 1 zfs destroy -v
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echo "# Liste nach zfs destroy"
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if [ "$MUSTER" = "" ]
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then
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zfs list -r -t snap -o name -s creation|grep "${DATASET}@"
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else
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zfs list -r -t snap -o name -s creation|grep "${DATASET}@"|grep $MUSTER
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fi
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else
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echo "# Test - folgende zfs destroys würden ausgführt"
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echo "$SNAPS" | head -n $DELSNAPS | xargs -n 1 zfs get -H creation
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echo "$SNAPS" | head -n $DELSNAPS | xargs -n 1 echo ">>" zfs destroy -v
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fi
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fi
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echo ""
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done
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