{
    'supergroups': [
        'debian',
    ],
    'metadata': {
        'apt': {
            'sources': {
                'deb http://security.debian.org/debian-security {release}/updates main contrib non-free',
            },
        },
        'php': {
            'version': '7.3',
        },
        'postgresql': {
            'version': '11',
        },
        'os_release': 'buster',
    }, 
    'os_version': (10,),
}