63 lines
2.6 KiB
Bash
63 lines
2.6 KiB
Bash
#!/bin/bash
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LOCKDIR=${HOME}/.cache # set lockdir
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function exlock() { # define Function for setting lock; stops the script i a lock exists
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exec {lock_fd}>${LOCKDIR}/$(basename $0).lock
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flock -nx "$lock_fd"
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if [[ $? == 1 ]]; then
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exit 1
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fi
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}
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function unlock() { # define function for removing lock
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rm "${LOCKDIR}/$(basename $0).lock"
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[[ -n $1 ]] && exit $1
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exit
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}
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exlock # set lock
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abbruch_restic=0 # set counter for error
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mount -t cifs -o credentials="/etc/restic/smb_password.txt",vers=3.0 {{ restic_repository }} {{ restic_mount }} # mount share
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mount_return_value=$? # schreib Exit Code in Variable
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if ( [ "$mount_return_value" -ne 0 ] ); then
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{
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echo "--------------------------------------------------" # Trenner logfile
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echo $(date +%d.%m.%Y-%T) # Datum für logfile
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echo "mount error"
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} >> /var/log/restic.log 2>&1;
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tail --lines=5 "/var/log/restic.log" | mail -s "Backup-Error - restic - $HOSTNAME" {{ empfaenger_mail }}
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exit 1
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else
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{
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echo "--------------------------------------------------" # Trenner logfile
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echo $(date +%d.%m.%Y-%T) # Datum für logfile
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echo "mount successful"
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} >> /var/log/restic.log 2>&1;
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fi
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while [[ "$abbruch_restic" -le {{ restic_anzahl_versuche_backup }} ]] # Schleife für Abbruchbedingung; um die eckikgen Klammern(Befehl "test") muss immer ein leerzeichen sein
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do
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{ # ist keine Subshell sondern Grouping; https://askubuntu.com/questions/662190/write-the-output-of-multiple-sequential-commands-to-a-text-file
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echo "--------------------------------------------------" # Trenner logfile
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echo $(date +%d.%m.%Y-%T) # Datum für logfile
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restic -r {{ restic_mount }} --password-file /etc/restic/password.txt backup --exclude-file /etc/restic/exclude.txt {{ restic_folders_to_backup }} # execute Backup
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restic_return_value=$? # schreib Exit Code in Variable
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if ( [[ "$restic_return_value" -eq 0 ]] ); # Prüfung ob restic erfolgreich war(setze Abbruchbedingung), wenn nicht warte 1min und zähle die Abbruchbedingung hoch
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then
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abbruch_restic=99
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else
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sleep {{ restic_wartezeit }}
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abbruch_restic=$(("$abbruch_restic" + 1))
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fi
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} >> /var/log/restic.log 2>&1; # leite die komplette Ausgabe in logfile um
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done
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umount {{ restic_mount }} >> /var/log/restic.log 2>&1; # unmount
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if ( [[ "$restic_return_value" -ne 0 ]] ); then # sende eMail wenn Restic Fehler ungleich 0, also Fehler; #https://stackoverflow.com/a/45817972
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tail --lines=50 "/var/log/restic.log" | mail -s "Backup-Error - restic - $HOSTNAME" {{ empfaenger_mail }} # schreibe die letzten 50 Zeilen aus dem Logfile in den Body der Mail
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fi
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unlock # entferne lock
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