bundlewrap/bundles/bind/metadata.py

from bundlewrap.metadata import atomic


defaults = {
    'icinga2_api': {
        'bind': {
            'services': {
                'BIND PROCESS': {
                    'command_on_monitored_host': '/usr/lib/nagios/plugins/check_procs -C named -c 1:1',
                },
            },
        },
    },
}

@metadata_reactor
def port_checks(metadata):
    services = {}

    for interface in metadata.get('bind/listen', set()):
        services[f'BIND PORT {interface}'] = {
            'check_command': 'tcp',
            'vars.tcp_address': metadata.get(f'interfaces/{interface}/ip_addresses')[0],
            'vars.tcp_port': 53,
        }

    return {
        'icinga2_api': {
            'bind': {
                'services': services,
            },
        },
    }