198 lines
5.7 KiB
Bash
Executable File
198 lines
5.7 KiB
Bash
Executable File
#!/usr/local/bin/bash
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#
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# Hjemmesnekret script som tar backup av PVV-servere.
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#
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# orjane - 2008.11.10
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#
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# Oppdatert av pederbs og yorinad 2017.02.04
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#
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#for å legge til en backup jobb:
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# zfs create principal/backupz/%name%
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#
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#sørg for at principal kan logge inn som brukerene på boksen uten passord:
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#
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#ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCsCm6f5JOlKDbZMiQ6rXvU35QU4Gs/WKKlZymXtFxPhK5jBoZskQjNhfsr+peuhnZ1y+04L9qEBkN3jN0ThROaRaKSFVWfnMnij7pEB0bmJRxDmkQsHL7YsAm6tPn8116tt9m9ASPYE5RpnaDGtxTP7uXa42URvwXdvWY618tdX4z39JG9f85KYexhwRbhaBMLnSPH6JKCKu1tTBwr7oEbuhLFrFXQwqWRip/oN/6/eSxnIrwaey1GM+CdNfeGh/0OeQJ4XIUas2WbgiQRw6Dkxo32FeFS5LVaOYWRys6W3Znw9a9yOYImjJ8WUmiwSeN2bksUizNBNA1HBhoKGM5b root@alphys
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#
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echo "PVV; hjemmelaget backupscript (2017.03.16 \$Revision: 1.9 $)"
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echo
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echo $(date)
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# Blir brukt som navn på ZFS-snapshot og logger.
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snapshot=`date +%Y%m%d`
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if [ "x$1" = "xfull" ]; then # Fullbackupen starter før midnat, legg på en dag
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snapshot=`date -v +1d +%Y%m%d`
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fi
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lockfile="/backupz/backup.sh.lock"
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if [ -e $lockfile ]; then
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pid=$(cat $lockfile)
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# TODO: Bruk bedre metode for å finne prosess.
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if ps -p $pid ; then
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echo "Backup kjører allerede:" `cat $lockfile`
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exit -1
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fi
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echo "Forrige backup ble avbrutt, rydder opp..."
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rm $lockfile
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zfs snapshot -r principal/backupz@avbrutt_${snapshot} && \
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echo "ZFS-snapshot OK." || echo "ZFS-snapshot FEILET!"
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# TODO: zfs rollback til forrige komplette backup.
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echo "Ferdig med oppryddingen."
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fi
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# Fang SIGINT, vi vil rydde opp om vi blir avbrutt.
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trap "rm $lockfile; echo 'Avbrutt, sletter låsfil...'; exit -2" SIGINT
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echo $$ > $lockfile
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echo "Sjekker at det er nok ledig plass på disken..."
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zfs get available principal/backupz
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#while [ $(/bin/df /backupz/ | /usr/bin/awk '/^backupz/{print $4}' ) -lt 100000000 ] ; do
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while [ $( zfs get -Hp available principal/backupz | cut -f3 ) -lt 50000000000 ] ; do
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echo; echo "Disken er nesten full, rydder"; echo
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min_backups=5
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if [ $(zfs list -t snapshot | grep backupz@ | wc -l) -lt $min_backups ]; then
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echo; echo "Mindre enn $min_backups backups lagret, feiger ut fra sletting"; echo
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break;
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fi
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oldest=$(zfs list -t snapshot | grep backupz@ | head -n1 | tr @ ' ' | awk '{print $2}')
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echo "Kjører zfs destroy på alle disker @$oldest"
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for d in $(zfs list | grep ^principal/backupz | awk '{print $1}'); do
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zfs destroy "$d@$oldest"
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done
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zfs get available principal/backupz
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echo
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done
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echo "Starter backup..."
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#export RSYNC_RSH="ssh -c arcfour -v"
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export RSYNC_RSH="ssh -v"
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rsync="/usr/local/bin/rsync"
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rsync_flags="--archive --hard-links --delete --numeric-ids --stats --inplace --relative"
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logdir="/backupz/log"
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# Gjør selve overføringen.
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# Start på en liste over PID vi skal vente på.
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venteproc=""
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# Gjør "full"-backup på søndager.
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if [ "x$1" = "xfull" ]; then # Det er søndag
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echo "Det er søndag; tar «full»-backup."
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rsync_flags="${rsync_flags} --checksum"
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fi
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echo "Snapshot ID: $snapshot"
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echo
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echo
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# knakelibrak (wiki)
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# command="${rsync} ${rsync_flags}\
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# wiki:/var/lib/mediawiki /backupz/wiki/"
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# $command >${logdir}/wiki.out.$snapshot 2>&1 &
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# venteproc="$venteproc $!"
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# echo "Startet $!: $command"
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# knakelibrak (databases)
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command="${rsync} ${rsync_flags}\
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knakelibrak:/var/backups/databases /backupz/databases/"
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$command >${logdir}/knakelibrak.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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# skrotnisse
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command="${rsync} ${rsync_flags}\
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skrotnisse:/var/www/ skrotnisse:/srv/ /backupz/skrotnisse/"
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$command >${logdir}/skrotnisse.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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# dash8
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command="${rsync} ${rsync_flags}\
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dash8:/var/lib/bitlbee/ /backupz/dash8/"
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$command >${logdir}/dash8.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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# tim døde, tom tok over men har ikke squirrelmail (4.feb 2019)
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# tim (web)
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#command="${rsync} ${rsync_flags}\
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# tim:/var/lib/squirrelmail /backupz/web/"
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#$command >${logdir}/tim.out.$snapshot 2>&1 &
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#venteproc="$venteproc $!"
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#echo "Startet $!: $command"
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# homepvv
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# Maa ha --one-file-system, ellers henger rsync pga. gvfs.
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command="${rsync} ${rsync_flags} --one-file-system --exclude-from=/backupz/homepvv.exclude \
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--log-file=${logdir}/homepvv.log.$snapshot \
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homepvv:/ homepvv:/boot homepvv:/export/home/pvv homepvv:/var /backupz/homepvv/"
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$command >${logdir}/homepvv.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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# lommel
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command="${rsync} ${rsync_flags} --exclude-from=/backupz/lommel.exclude \
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lommel:/ /backupz/lommel/"
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$command >${logdir}/lommel.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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# Spikkjeposche
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command="${rsync} ${rsync_flags} --include-from=/backupz/spikkjeposche.include \
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spikkjeposche:/ /backupz/spikkjeposche/"
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$command >${logdir}/spikkjeposche.out.$snapshot 2>&1 &
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venteproc="$venteproc $!"
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echo "Startet $!: $command"
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## Andre ting som skal kopieres her...
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echo
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echo "Rsync er i gang."
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# Vent til rsync er ferdig.
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echo "Venter til rsync er ferdig: $venteproc"
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for i in $venteproc ; do
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wait $i
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feilkode=$?
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if [ $feilkode -eq 0 ]; then
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echo "$i: OK"
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else
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echo "$i: Rsync returnerte feil (${feilkode})."
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fi
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done
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echo
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echo "Rsync er ferdig."
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# Gjør hjemmemappene lesbare bare for brukeren.
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find /backupz/homepvv/export/home/pvv -maxdepth 2 -mindepth 2 -exec chmod 700 {} \;
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# Touch home slik at timestamp på snapshot blir når backup var ferdig.
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touch /backupz/homepvv/export/home
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# Ta et zfs snapshot
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echo "Tar ZFS-snapshot..."
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zfs snapshot -r principal/backupz@${snapshot} && \
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echo "ZFS-snapshot ferdig." || echo "ZFS-snapshot FEILET!"
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echo
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echo Ledig plass: $(zfs list -H -o avail principal/backupz)
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echo
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# TODO: Slett enkelte gamle snapshots?
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echo "Backup ferdig: $(date)"
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rm $lockfile
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zpool status -xv principal
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