#cloud-config
package_update: true
package_upgrade: true

packages:
  - rsync
  - cron
  - gzip
  - tar

write_files:
  - path: /usr/local/bin/backup-script.sh
    content: |
      #!/bin/bash
      
      # Backup configuration
      BACKUP_DIR="/opt/backups"
      REMOTE_HOST="backup.example.com"
      REMOTE_USER="backup"
      REMOTE_PATH="/backups/$(hostname)"
      DATE=$(date +%Y%m%d_%H%M%S)
      
      # Create backup directory
      mkdir -p "$BACKUP_DIR"
      
      # Backup system files
      tar -czf "$BACKUP_DIR/system_$DATE.tar.gz" \
          /etc \
          /home \
          /var/www \
          /opt \
          --exclude="/opt/backups" \
          2>/dev/null
      
      # Backup databases (if MySQL is installed)
      if command -v mysqldump >/dev/null 2>&1; then
          mysqldump --all-databases --single-transaction > "$BACKUP_DIR/mysql_$DATE.sql"
          gzip "$BACKUP_DIR/mysql_$DATE.sql"
      fi
      
      # Sync to remote server (uncomment and configure)
      # rsync -avz --delete "$BACKUP_DIR/" "$REMOTE_USER@$REMOTE_HOST:$REMOTE_PATH/"
      
      # Clean old backups (keep last 7 days)
      find "$BACKUP_DIR" -name "*.tar.gz" -mtime +7 -delete
      find "$BACKUP_DIR" -name "*.sql.gz" -mtime +7 -delete
      
      echo "Backup completed: $(date)"
    permissions: '0755'
    
  - path: /etc/cron.d/backup
    content: |
      # Run backup daily at 2 AM
      0 2 * * * root /usr/local/bin/backup-script.sh >> /var/log/backup.log 2>&1

runcmd:
  - mkdir -p /opt/backups
  - systemctl enable cron
  - systemctl start cron