{% set server = salt['grains.filter_by']({
    'Common': {
        'service': 'tftpd-hpa',
        'path': '/var/lib/tftpboot',
        'username': 'tftp',
        'bind': {
            'address': '',
            'port': 69
        },
        'options': ['--secure']
    },
    'Debian': {
        'pkgs': ['tftpd-hpa', 'syslinux'],
        'config_file': '/etc/default/tftpd-hpa'
    },
    'RedHat': {
        'pkgs': ['tftp-server', 'syslinux']
    }
}, base='Common', merge=salt['grains.filter_by']({
    'Ubuntu': {
        'path': '/srv/tftp'
    },
}, grain='os')) %}

{% do server.update(pillar.tftpd_hpa.get('server', {})) %}