Add backup script

.gitignore

@@ -1 +1,3 @@
 .discord
+.database
+*.swp

nextcloud_backup.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+start=$(date +%s)
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+WEBHOOK_URL=$(cat "${SCRIPT_DIR}/.discord")
+DATABASE_PASSWORD=$(cat "${SCRIPT_DIR}/.database")
+
+send_discord_message() {
+	local message="$1"
+	local content="`date +\"%Y/%m/%d-%H:%M:%S\"` - $message"
+	curl -H "Content-Type: application/json" -X POST -d "{\"content\": \"$content\"}" "$WEBHOOK_URL"
+}
+
+#Enable maintenance mode
+php8.3 /var/www/nextcloud/occ maintenance:mode --on
+if [ $? -ne 0 ]; then
+	send_discord_message "Failed to enable maintenance mode."
+	exit 1
+fi
+
+#Backup nextcloud directory
+echo "Backing up nextcloud directory"
+rsync -Aax /var/www/nextcloud/ /mnt/backup/nextcloud/
+if [ $? -ne 0 ]; then
+	send_discord_message "Failed to backup nextcloud directory."
+	exit 1
+fi
+
+
+#Backup database
+TEMP_FILE="/mnt/backup/db_backups/nextcloud-sqlbackup.bak.tmp"
+FINAL_FILE="/mnt/backup/db_backups/nextcloud-sqlbackup.bak"
+echo "Backing up database"
+export MYSQL_PWD="$DATABASE_PASSWORD"
+mysqldump --single-transaction --no-tablespaces -h localhost -u cloud_db nextcloud > "$TEMP_FILE"
+if [ $? -ne 0 ]; then
+	send_discord_message "Failed to backup database."
+	exit 1
+fi
+mv "$TEMP_FILE" "$FINAL_FILE"
+
+#Backup data directory
+echo "Backing up data directory"
+rsync -Aax /mnt/cloud/ /mnt/backup/data/
+if [ $? -ne 0 ]; then
+	send_discord_message "Failed to backup data directory."
+	exit 1
+fi
+
+#Disable maintenance mode
+php8.3 /var/www/nextcloud/occ maintenance:mode --off
+if [ $? -ne 0 ]; then
+	send_discord_message "Failed to disable maintenance mode."
+fi
+
+end=$(date +%s)
+elapsed=$((end - start))
+send_discord_message "SUCCESS! Finished Nextcloud backup in $elapsed seconds."