Openstack [clouds.yaml](https://docs.openstack.org/python-openstackclient/pike/configuration/index.html) updater

clouds_yaml_util-naive.py

#!/usr/bin/env python3

import yaml

def get_content(file='clouds.yaml'):
    with open(file, 'r') as stream:
        return yaml.safe_load(stream)

def set_content(file='clouds.yaml', content=None):
    with open(file, 'wt') as stream:
        print(yaml.dump(content, default_flow_style=False), file=stream)

def update_clouds():
    content = get_content()
    content['clouds']['openstack']['auth'].update({
        'user_domain_name': 'null',
        'project_domain_name': 'Default',
        'protocol': 'oidc',
        'discovery_endpoint': 'https://getMeToTheServer',
        'identity_provider': 'sso',
        'client_secret': 'blah',
        'client_id': 'blahblah'
    })
    set_content(content=content)

if __name__ == '__main__':
    update_clouds()

clouds_yaml_util-oo.py

#!/usr/bin/env python3


import datetime
import sys
import yaml


class Clouds(object):
    def __init__(self, clouds_yaml):
        self.file = clouds_yaml

    def content(self):
        with open(self.file, 'r') as stream:
            return yaml.safe_load(stream)

    def update(self, content=None):
        with open(self.file, 'wt') as stream:
            stream.write(yaml.dump(content, default_flow_style=False))


def update_clouds(file):
    clouds = Clouds(clouds_yaml=file)
    content = clouds.content()
    content['clouds']['openstack']['auth'].update({
        'client_id': datetime.datetime.now(),
        'client_secret': 'blah',
        'discovery_endpoint': 'https://getMeToTheServer',
        'identity_provider': 'sso',
        'project_domain_name': 'Default',
        'protocol': 'oidc',
        'user_domain_name': 'null',
    })
    # print(content)
    clouds.update(content=content)

if __name__ == '__main__':
    file = sys.argv[1]
    update_clouds(sys.argv[1])

# $ ./clouds_yaml_util-oo.py /tmp/clouds.yaml