{%- set packages = salt['grains.filter_by']({
    'default': {
        'backends': {
            'mysql': ['pdns-backend-mysql'],
            'geoip': ['pdns-backend-geoip'],
            'ldap': ['pdns-backend-ldap'],
            'lua': ['pdns-backend-lua'],
            'mydns': ['pdns-backend-mydns'],
            'remote': ['pdns-backend-remote'],
            'tinydns': ['pdns-backend-tinydns'],
        },
    },
    'Debian': {
        'pkgs': ['pdns-server'],
        'backends': {
            'sqlite': ['pdns-backend-sqlite3'],
            'pgsql': ['pdns-backend-pgsql'],
        },
    },
    'RedHat': {
        'pkgs': ['pdns'],
        'backends': {
            'sqlite': ['pdns-backend-sqlite'],
            'pgsql': ['pdns-backend-postgresql'],
        },
    },
}, grain='os_family') %}