batch_create.py

#!/bin/env/python

"""
This script generates openstack cli commands to create user accounts for the 
WCC_201 course.
"""

import string
import secrets
import csv
from pprint import pprint
from collections import defaultdict




alphabet = string.ascii_letters + string.digits

user_create_cmd = 'openstack user create --project-domain WCC_2021 --password {password} --project {project} {name}'
domain_user_create_cmd = 'openstack user create --domain WCC_2021 --password {password} {name}'
project_create_cmd = 'openstack project create --domain WCC_2021 {}'


def create_password():
    """
    Returns: string
    """
    return ''.join(secrets.choice(alphabet) for i in range(20))


def create_datastructure():
    """
    Fils the projects dict.
    returns: Dict
    """
    projects = defaultdict(list)
    with open('WCC_Studenten.csv', newline='') as csvfile:
        csv_reader = csv.reader(csvfile, delimiter=',', quotechar='"')
        for row in csv_reader:
            # prefix bare id with WCC_2021_
            if row[0].isdigit():
                project = 'WCC_2021_{:0>2d}'.format(int(row[0]))
            else:
                project = 'WCC_2021_staff'
            projects[project] += [(person.replace(' ', '_'), create_password())
                                  for person in row[1].split('\n')]
    return projects


if __name__ == '__main__':
    projects = create_datastructure()

    print('I am going to create the following datastructure\n')
    pprint(projects)

    print('openstack domain create WCC_2021')

    for project in projects.keys():
        if project == 'WCC_2021_staff':
            for member in projects[project]:
                # We make these domain admins.
                print(
                    domain_user_create_cmd.format(
                        domain='WCC_2021',
                        name=member[0],
                        password=member[1],
                        role='admin'))
                print(
                    'openstack role add --user {user} --domain WCC_2021 admin'.
                    format(user=member[0]))

        else:
            print(project_create_cmd.format(project))
            for member in projects[project]:
                # The students are project admins,
                password = ''.join(secrets.choice(alphabet) for i in range(20))
                print(
                    user_create_cmd.format(
                        project=project,
                        name=member[0],
                        password=member[1],
                        role='admin'))
                print(
                    'openstack role add --user {user} --project {project} admin'.
                    format(user=member[0], project=project))