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https://git.local.zernis.ch/simon/homeserver.zernis.ch.git
synced 2025-12-15 20:59:40 +01:00
84 lines
3.0 KiB
Bash
84 lines
3.0 KiB
Bash
#!/bin/bash
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# Variablen
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data_dir="/home/{{ system_user_name }}/docker"
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nfs_share="{{ nfs_share }}"
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backup_target_usage_threshold="{{nfs_threshold}}" # Prozentuale Schwellenwert für die Speicherauslastung
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mount_point="{{ mount_point }}"
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backup_repository="$mount_point/{{borg_repo}}"
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borg_password="{{borg_pass}}"
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email_recipient="{{admin_mail}}"
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sender_address="{{sender_address}}"
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# Mounten des Backup-Ziels
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mount_successful=0
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mount_output=$(mount -t nfs "$nfs_share" "$mount_point" 2>&1)
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mount_status=$?
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if [ "$mount_status" -eq 0 ]; then
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mount_successful=1
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else
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echo "Mount fehlgeschlagen: $mount_output" >&2
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fi
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if [ "$mount_successful" -eq 1 ]; then
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# Repository erstellen, falls nicht vorhanden
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mkdir -p "$backup_repository"
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# Alle laufenden Container stoppen
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running_containers=$(docker ps --format '{{ "{{.Names}}" }}')
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for container in $running_containers; do
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docker stop "$container"
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done
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# Prüfen, ob das Repository existiert, und ggf. erstellen
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export BORG_PASSPHRASE="$borg_password"
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if ! borg list "$backup_repository" >/dev/null 2>&1; then
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borg init --encryption=repokey "$backup_repository"
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fi
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# Backup mit BorgBackup erstellen
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backup_result=$(borg create --stats --compression lz4 "$backup_repository"::'{hostname}-{now:%Y-%m-%d_%H:%M:%S}' $data_dir 2>&1)
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backup_status=$?
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# Alle gestoppten Container starten
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for container in $running_containers; do
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docker start "$container"
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done
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# Backup-Integrität überprüfen
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borg_check_result=$(borg check --repository-only --max-duration 43200 "$backup_repository" 2>&1)
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# Backup-Status und Speicherauslastung prüfen
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if [ "$backup_status" -eq 0 ]; then
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backup_result="Backup erfolgreich:\n$backup_result\n\nIntegrität des Backups überprüft:\n$borg_check_result"
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else
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backup_result="Backup fehlgeschlagen (Status: $backup_status):\n$backup_result\n\nIntegrität des Backups konnte nicht überprüft werden."
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fi
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# Retention Policy anwenden
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borg_prune_result=$(borg prune --keep-daily=7 --keep-weekly=4 --keep-monthly=6 "$backup_repository" 2>&1)
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# Unmounten des Backup-Ziels
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umount_output=$(umount "$mount_point" 2>&1)
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umount_status=$?
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if [ "$umount_status" -ne 0 ]; then
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echo "Unmount fehlgeschlagen: $umount_output" >&2
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fi
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# E-Mail senden
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target_usage=$(df -h "$mount_point" | tail -1 | awk '{ print $5 }')
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target_usage_number=${target_usage%%%}
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if [ "$target_usage_number" -gt "$backup_target_usage_threshold" ]; then
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target_usage_warning="\n\nWARNUNG: Die Speicherauslastung des Backup-Ziels beträgt $target_usage und überschreitet den festgelegten Schwellenwert von $backup_target_usage_threshold%."
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else
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target_usage_warning=""
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fi
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hostname=$(hostname)
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mail_subject="Backup-Bericht: $hostname - $(date +'%Y-%m-%d %H:%M:%S')"
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mail_body="$backup_result\n"
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echo -e "$mail_body$target_usage_warning" | mail -s "$mail_subject" -r "$sender_adress" "$email_recipient"
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fi |