[Unit]
Description=Backup MySQL databases
ConditionFileIsExecutable=/usr/lib/systemd/scripts/backup-mariadb
ConditionFileIsExecutable=/usr/bin/mysql

[Service]
EnvironmentFile=/etc/crypted-backups
Nice=19
IOSchedulingClass=2
IOSchedulingPriority=7
ExecStart=/usr/lib/systemd/scripts/backup-mariadb