#!/usr/bin/python # -*- coding: utf-8 -*- # Based on Jimmy Tang's implementation DOCUMENTATION = ''' --- module: keystone_user short_description: Manage OpenStack Identity (keystone) users, tenants and roles description: - Manage users,tenants, roles from OpenStack. options: login_user: description: - login username to authenticate to keystone required: false default: admin login_password: description: - Password of login user required: false default: True token: description: - The token to be uses in case the password is not specified required: false default: None endpoint: description: - The keystone url for authentication required: false default: 'http://127.0.0.1:35357/v2.0/' user: description: - The name of the user that has to added/removed from openstack required: false default: None password: description: - The password to be assigned to the user required: false default: None tenant: description: - The tenant name that has be added/removed required: false default: None description: description: - A description for the tenant required: false default: None email: description: - An email address for the user required: false default: None role: description: - The name of the role to be assigned or created required: false default: None state: description: - Indicate desired state of the resource choices: ['present', 'absent'] default: present examples: - code: 'keystone_user: tenant=demo tenant_description="Default Tenant"' description: Create a tenant - code: 'keystone_user: user=john tenant=demo password=secrete' description: Create a user - code: 'keystone_user: role=admin user=john tenant=demo' description: Apply the admin role to the john user in the demo tenant requirements: [ python-keystoneclient ] author: Lorin Hochstein ''' try: from keystoneclient.v2_0 import client except ImportError: keystoneclient_found = False else: keystoneclient_found = True def authenticate(endpoint, token, login_user, login_password): """Return a keystone client object""" if token: return client.Client(endpoint=endpoint, token=token) else: return client.Client(endpoint=endpoint, username=login_user, password=login_password) def tenant_exists(keystone, tenant): """ Return True if tenant already exists""" return tenant in [x.name for x in keystone.tenants.list()] def user_exists(keystone, user): """" Return True if user already exists""" return user in [x.name for x in keystone.users.list()] def get_tenant(keystone, name): """ Retrieve a tenant by name""" tenants = [x for x in keystone.tenants.list() if x.name == name] count = len(tenants) if count == 0: raise KeyError("No keystone tenants with name %s" % name) elif count > 1: raise ValueError("%d tenants with name %s" % (count, name)) else: return tenants[0] def get_user(keystone, name): """ Retrieve a user by name""" users = [x for x in keystone.users.list() if x.name == name] count = len(users) if count == 0: raise KeyError("No keystone users with name %s" % name) elif count > 1: raise ValueError("%d users with name %s" % (count, name)) else: return users[0] def get_role(keystone, name): """ Retrieve a role by name""" roles = [x for x in keystone.roles.list() if x.name == name] count = len(roles) if count == 0: raise KeyError("No keystone roles with name %s" % name) elif count > 1: raise ValueError("%d roles with name %s" % (count, name)) else: return roles[0] def get_tenant_id(keystone, name): return get_tenant(keystone, name).id def get_user_id(keystone, name): return get_user(keystone, name).id def ensure_tenant_exists(keystone, tenant_name, tenant_description, check_mode): """ Ensure that a tenant exists. Return (True, id) if a new tenant was created, (False, None) if it already existed. """ # Check if tenant already exists try: tenant = get_tenant(keystone, tenant_name) except KeyError: # Tenant doesn't exist yet pass else: if tenant.description == tenant_description: return (False, tenant.id) else: # We need to update the tenant description if check_mode: return (True, tenant.id) else: tenant.update(description=tenant_description) return (True, tenant.id) # We now know we will have to create a new tenant if check_mode: return (True, None) ks_tenant = keystone.tenants.create(tenant_name=tenant_name, description=tenant_description, enabled=True) return (True, ks_tenant.id) def ensure_tenant_absent(keystone, tenant, check_mode): """ Ensure that a tenant does not exist Return True if the tenant was removed, False if it didn't exist in the first place """ if not tenant_exists(keystone, tenant): return False # We now know we will have to delete the tenant if check_mode: return True def ensure_user_exists(keystone, user_name, password, email, tenant_name, check_mode): """ Check if user exists Return (True, id) if a new user was created, (False, id) user alrady exists """ # Check if tenant already exists try: user = get_user(keystone, user_name) except KeyError: # Tenant doesn't exist yet pass else: # User does exist, we're done return (False, user.id) # We now know we will have to create a new user if check_mode: return (True, None) tenant = get_tenant(keystone, tenant_name) user = keystone.users.create(name=user_name, password=password, email=email, tenant_id=tenant.id) return (True, user.id) def ensure_role_exists(keystone, user_name, tenant_name, role_name, check_mode): """ Check if role exists Return (True, id) if a new role was created or if the role was newly assigned to the user for the tenant. (False, id) if the role already exists and was already assigned to the user ofr the tenant. """ # Check if the user has the role in the tenant user = get_user(keystone, user_name) tenant = get_tenant(keystone, tenant_name) roles = [x for x in keystone.roles.roles_for_user(user, tenant) if x.name == role_name] count = len(roles) if count == 1: # If the role is in there, we are done role = roles[0] return (False, role.id) elif count > 1: # Too many roles with the same name, throw an error raise ValueError("%d roles with name %s" % (count, role_name)) # At this point, we know we will need to make changes if check_mode: return (True, None) # Get the role if it exists try: role = get_role(keystone, role_name) except KeyError: # Role doesn't exist yet role = keystone.roles.create(role_name) # Associate the role with the user in the admin keystone.roles.add_user_role(user, role, tenant) return (True, role.id) def ensure_user_absent(keystone, user, check_mode): raise NotImplementedError("Not yet implemented") def ensure_role_absent(keystone, uesr, tenant, role, check_mode): raise NotImplementedError("Not yet implemented") def main(): module = AnsibleModule( argument_spec=dict( user=dict(required=False), password=dict(required=False), tenant=dict(required=False), tenant_description=dict(required=False), email=dict(required=False), role=dict(required=False), state=dict(default='present', choices=['present', 'absent']), endpoint=dict(required=False, default="http://127.0.0.1:35357/v2.0"), token=dict(required=False), login_user=dict(required=False), login_password=dict(required=False) ), supports_check_mode=True, mutually_exclusive=[['token', 'login_user'], ['token', 'login_password']] ) if not keystoneclient_found: module.fail_json(msg="the python-keystoneclient module is required") user = module.params['user'] password = module.params['password'] tenant = module.params['tenant'] tenant_description = module.params['tenant_description'] email = module.params['email'] role = module.params['role'] state = module.params['state'] endpoint = module.params['endpoint'] token = module.params['token'] login_user = module.params['login_user'] login_password = module.params['login_password'] keystone = authenticate(endpoint, token, login_user, login_password) check_mode = module.check_mode try: d = dispatch(keystone, user, password, tenant, tenant_description, email, role, state, endpoint, token, login_user, login_password, check_mode) except Exception as e: if check_mode: # If we have a failure in check mode module.exit_json(changed=True, msg="exception: %s" % e.message) else: module.fail_json(msg=e.message) else: module.exit_json(**d) def dispatch(keystone, user=None, password=None, tenant=None, tenant_description=None, email=None, role=None, state="present", endpoint=None, token=None, login_user=None, login_password=None, check_mode=False): """ Dispatch to the appropriate method. Returns a dict that will be passed to exit_json tenant user role state ------ ---- ---- -------- X present ensure_tenant_exists X absent ensure_tenant_absent X X present ensure_user_exists X X absent ensure_user_absent X X X present ensure_role_exists X X X absent ensure_role_absent """ changed = False id = None if tenant and not user and not role and state == "present": changed, id = ensure_tenant_exists(keystone, tenant, tenant_description, check_mode) elif tenant and not user and not role and state == "absent": changed = ensure_tenant_absent(keystone, tenant, check_mode) elif tenant and user and not role and state == "present": changed, id = ensure_user_exists(keystone, user, password, email, tenant, check_mode) elif tenant and user and not role and state == "absent": changed = ensure_user_absent(keystone, user, check_mode) elif tenant and user and role and state == "present": changed, id = ensure_role_exists(keystone, user, tenant, role, check_mode) elif tenant and user and role and state == "absent": changed = ensure_role_absent(keystone, user, tenant, role, check_mode) else: # Should never reach here raise ValueError("Code should never reach here") return dict(changed=changed, id=id) # this is magic, see lib/ansible/module_common.py #<> if __name__ == '__main__': main()