1. Download the repository packages:

wget https://repo.percona.com/apt/percona-release_0.1-3.$(lsb_release -sc)_all.deb

2. Install it:

dpkg -i percona-release_0.1-3.$(lsb_release -sc)_all.deb

3. Update the packages list:

apt-get update

4. Install

apt-get install percona-nagios-plugins

5. Grant the privileges:

GRANT USAGE, SELECT, REPLICATION CLIENT on *.* to 'test'@'localhost' IDENTIFIED BY 'password';

6. Test:

/usr/lib64/nagios/plugins/pmp-check-mysql-status -x wsrep_cluster_status -C == -T str -c non-Primary -l test -p password