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New module: keycloak_group (#35637)

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* Initial implementation of groups module.

Not all parameters are supported, yet.

* Clarify read-only status of realmRoles, clientRoles and access attributes

* Fix testing failures

* Fix additional style issues.

* Minor updates and fixes after review feedback

* Simplify return values after feedback

This removes the 'proposed' and 'end_state' return values, replacing them instead with just 'group'. 'group' is the representation of the group after the module completes.

Also update the dates, and the Ansible version

* Corrections after module validation

* Further documentation updates after feedback

Minor whitespace adjustments also

* Add delegate_to: localhost stanzas to examples
This commit is contained in:
adamgoossens 2019-04-11 05:58:20 +10:00 committed by ansibot
parent 7bb19f1b4d
commit dd3de27cc8
2 changed files with 491 additions and 0 deletions
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133
lib/ansible/module_utils/keycloak.py
View file

@ -43,6 +43,8 @@ URL_REALM_ROLES = "{url}/admin/realms/{realm}/roles"
URL_CLIENTTEMPLATE = "{url}/admin/realms/{realm}/client-templates/{id}"
URL_CLIENTTEMPLATES = "{url}/admin/realms/{realm}/client-templates"
URL_GROUPS = "{url}/admin/realms/{realm}/groups"
URL_GROUP = "{url}/admin/realms/{realm}/groups/{groupid}"
def keycloak_argument_spec():
@ -339,3 +341,134 @@ class KeycloakAPI(object):
except Exception as e:
self.module.fail_json(msg='Could not delete client template %s in realm %s: %s'
% (id, realm, str(e)))
def get_groups(self, realm="master"):
""" Fetch the name and ID of all groups on the Keycloak server.
To fetch the full data of the group, make a subsequent call to
get_group_by_groupid, passing in the ID of the group you wish to return.
:param realm: Return the groups of this realm (default "master").
"""
groups_url = URL_GROUPS.format(url=self.baseurl, realm=realm)
try:
return json.load(open_url(groups_url, method="GET", headers=self.restheaders,
validate_certs=self.validate_certs))
except Exception as e:
self.module.fail_json(msg="Could not fetch list of groups in realm %s: %s"
% (realm, str(e)))
def get_group_by_groupid(self, gid, realm="master"):
""" Fetch a keycloak group from the provided realm using the group's unique ID.
If the group does not exist, None is returned.
gid is a UUID provided by the Keycloak API
:param gid: UUID of the group to be returned
:param realm: Realm in which the group resides; default 'master'.
"""
groups_url = URL_GROUP.format(url=self.baseurl, realm=realm, groupid=gid)
try:
return json.load(open_url(groups_url, method="GET", headers=self.restheaders,
validate_certs=self.validate_certs))
except HTTPError as e:
if e.code == 404:
return None
else:
self.module.fail_json(msg="Could not fetch group %s in realm %s: %s"
% (gid, realm, str(e)))
except Exception as e:
self.module.fail_json(msg="Could not fetch group %s in realm %s: %s"
% (gid, realm, str(e)))
def get_group_by_name(self, name, realm="master"):
""" Fetch a keycloak group within a realm based on its name.
The Keycloak API does not allow filtering of the Groups resource by name.
As a result, this method first retrieves the entire list of groups - name and ID -
then performs a second query to fetch the group.
If the group does not exist, None is returned.
:param name: Name of the group to fetch.
:param realm: Realm in which the group resides; default 'master'
"""
groups_url = URL_GROUPS.format(url=self.baseurl, realm=realm)
try:
all_groups = self.get_groups(realm=realm)
for group in all_groups:
if group['name'] == name:
return self.get_group_by_groupid(group['id'], realm=realm)
return None
except Exception as e:
self.module.fail_json(msg="Could not fetch group %s in realm %s: %s"
% (name, realm, str(e)))
def create_group(self, grouprep, realm="master"):
""" Create a Keycloak group.
:param grouprep: a GroupRepresentation of the group to be created. Must contain at minimum the field name.
:return: HTTPResponse object on success
"""
groups_url = URL_GROUPS.format(url=self.baseurl, realm=realm)
try:
return open_url(groups_url, method='POST', headers=self.restheaders,
data=json.dumps(grouprep), validate_certs=self.validate_certs)
except Exception as e:
self.module.fail_json(msg="Could not create group %s in realm %s: %s"
% (grouprep['name'], realm, str(e)))
def update_group(self, grouprep, realm="master"):
""" Update an existing group.
:param grouprep: A GroupRepresentation of the updated group.
:return HTTPResponse object on success
"""
group_url = URL_GROUP.format(url=self.baseurl, realm=realm, groupid=grouprep['id'])
try:
return open_url(group_url, method='PUT', headers=self.restheaders,
data=json.dumps(grouprep), validate_certs=self.validate_certs)
except Exception as e:
self.module.fail_json(msg='Could not update group %s in realm %s: %s'
% (grouprep['name'], realm, str(e)))
def delete_group(self, name=None, groupid=None, realm="master"):
""" Delete a group. One of name or groupid must be provided.
Providing the group ID is preferred as it avoids a second lookup to
convert a group name to an ID.
:param name: The name of the group. A lookup will be performed to retrieve the group ID.
:param groupid: The ID of the group (preferred to name).
:param realm: The realm in which this group resides, default "master".
"""
if groupid is None and name is None:
# prefer an exception since this is almost certainly a programming error in the module itself.
raise Exception("Unable to delete group - one of group ID or name must be provided.")
# only lookup the name if groupid isn't provided.
# in the case that both are provided, prefer the ID, since it's one
# less lookup.
if groupid is None and name is not None:
for group in self.get_groups(realm=realm):
if group['name'] == name:
groupid = group['id']
break
# if the group doesn't exist - no problem, nothing to delete.
if groupid is None:
return None
# should have a good groupid by here.
group_url = URL_GROUP.format(realm=realm, groupid=groupid, url=self.baseurl)
try:
return open_url(group_url, method='DELETE', headers=self.restheaders,
validate_certs=self.validate_certs)
except Exception as e:
self.module.fail_json(msg="Unable to delete group %s: %s" % (groupid, str(e)))

358
lib/ansible/modules/identity/keycloak/keycloak_group.py Normal file
View file

@ -0,0 +1,358 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2019, Adam Goossens <adam.goossens@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {
'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'
}
DOCUMENTATION = '''
---
module: keycloak_group
short_description: Allows administration of Keycloak groups via Keycloak API
description:
- This module allows you to add, remove or modify Keycloak groups via the Keycloak REST API.
It requires access to the REST API via OpenID Connect; the user connecting and the client being
used must have the requisite access rights. In a default Keycloak installation, admin-cli
and an admin user would work, as would a separate client definition with the scope tailored
to your needs and a user having the expected roles.
- The names of module options are snake_cased versions of the camelCase ones found in the
Keycloak API and its documentation at U(http://www.keycloak.org/docs-api/3.3/rest-api/).
- Attributes are multi-valued in the Keycloak API. All attributes are lists of individual values and will
be returned that way by this module. You may pass single values for attributes when calling the module,
and this will be translated into a list suitable for the API.
- When updating a group, where possible provide the group ID to the module. This removes a lookup
to the API to translate the name into the group ID.
version_added: "2.8"
options:
state:
description:
- State of the group.
- On C(present), the group will be created if it does not yet exist, or updated with the parameters you provide.
- On C(absent), the group will be removed if it exists.
required: true
default: 'present'
type: str
choices:
- present
- absent
name:
type: str
description:
- Name of the group.
- This parameter is required only when creating or updating the group.
realm:
type: str
description:
- They Keycloak realm under which this group resides.
default: 'master'
id:
type: str
description:
- The unique identifier for this group.
- This parameter is not required for updating or deleting a group but
providing it will reduce the number of API calls required.
attributes:
type: dict
description:
- A dict of key/value pairs to set as custom attributes for the group.
- Values may be single values (e.g. a string) or a list of strings.
notes:
- Presently, the I(realmRoles), I(clientRoles) and I(access) attributes returned by the Keycloak API
are read-only for groups. This limitation will be removed in a later version of this module.
extends_documentation_fragment:
- keycloak
author:
- Adam Goossens (@adamgoossens)
'''
EXAMPLES = '''
- name: Create a Keycloak group
keycloak_group:
name: my-new-kc-group
realm: MyCustomRealm
state: present
auth_client_id: admin-cli
auth_keycloak_url: https://auth.example.com/auth
auth_realm: master
auth_username: USERNAME
auth_password: PASSWORD
delegate_to: localhost
- name: Delete a keycloak group
keycloak_group:
id: '9d59aa76-2755-48c6-b1af-beb70a82c3cd'
state: absent
realm: MyCustomRealm
auth_client_id: admin-cli
auth_keycloak_url: https://auth.example.com/auth
auth_realm: master
auth_username: USERNAME
auth_password: PASSWORD
delegate_to: localhost
- name: Delete a Keycloak group based on name
keycloak_group:
name: my-group-for-deletion
state: absent
auth_client_id: admin-cli
auth_keycloak_url: https://auth.example.com/auth
auth_realm: master
auth_username: USERNAME
auth_password: PASSWORD
delegate_to: localhost
- name: Update the name of a Keycloak group
keycloak_group:
id: '9d59aa76-2755-48c6-b1af-beb70a82c3cd'
name: an-updated-kc-group-name
state: present
auth_client_id: admin-cli
auth_keycloak_url: https://auth.example.com/auth
auth_realm: master
auth_username: USERNAME
auth_password: PASSWORD
delegate_to: localhost
- name: Create a keycloak group with some custom attributes
keycloak_group:
auth_client_id: admin-cli
auth_keycloak_url: https://auth.example.com/auth
auth_realm: master
auth_username: USERNAME
auth_password: PASSWORD
name: my-new_group
attributes:
attrib1: value1
attrib2: value2
attrib3:
- with
- numerous
- individual
- list
- items
delegate_to: localhost
'''
RETURN = '''
group:
description: Group representation of the group after module execution (sample is truncated).
returned: always
type: complex
contains:
id:
description: GUID that identifies the group
type: str
returned: always
sample: 23f38145-3195-462c-97e7-97041ccea73e
name:
description: Name of the group
type: str
returned: always
sample: grp-test-123
attributes:
description: Attributes applied to this group
type: dict
returned: always
sample:
attr1: ["val1", "val2", "val3"]
path:
description: URI path to the group
type: str
returned: always
sample: /grp-test-123
realmRoles:
description: An array of the realm-level roles granted to this group
type: list
returned: always
sample: []
subGroups:
description: A list of groups that are children of this group. These groups will have the same parameters as
documented here.
type: list
returned: always
clientRoles:
description: A list of client-level roles granted to this group
type: list
returned: always
sample: []
access:
description: A dict describing the accesses you have to this group based on the credentials used.
type: dict
returned: always
sample:
manage: true
manageMembership: true
view: true
'''
from ansible.module_utils.keycloak import KeycloakAPI, camel, keycloak_argument_spec
from ansible.module_utils.basic import AnsibleModule
def main():
"""
Module execution
:return:
"""
argument_spec = keycloak_argument_spec()
meta_args = dict(
state=dict(default='present', choices=['present', 'absent']),
realm=dict(default='master'),
id=dict(type='str'),
name=dict(type='str'),
attributes=dict(type='dict')
)
argument_spec.update(meta_args)
module = AnsibleModule(argument_spec=argument_spec,
supports_check_mode=True,
required_one_of=([['id', 'name']]))
result = dict(changed=False, msg='', diff={}, group='')
# Obtain access token, initialize API
kc = KeycloakAPI(module)
realm = module.params.get('realm')
state = module.params.get('state')
gid = module.params.get('id')
name = module.params.get('name')
attributes = module.params.get('attributes')
before_group = None # current state of the group, for merging.
# does the group already exist?
if gid is None:
before_group = kc.get_group_by_name(name, realm=realm)
else:
before_group = kc.get_group_by_groupid(gid, realm=realm)
before_group = {} if before_group is None else before_group
# attributes in Keycloak have their values returned as lists
# via the API. attributes is a dict, so we'll transparently convert
# the values to lists.
if attributes is not None:
for key, val in module.params['attributes'].items():
module.params['attributes'][key] = [val] if not isinstance(val, list) else val
group_params = [x for x in module.params
if x not in list(keycloak_argument_spec().keys()) + ['state', 'realm'] and
module.params.get(x) is not None]
# build a changeset
changeset = {}
for param in group_params:
new_param_value = module.params.get(param)
old_value = before_group[param] if param in before_group else None
if new_param_value != old_value:
changeset[camel(param)] = new_param_value
# prepare the new group
updated_group = before_group.copy()
updated_group.update(changeset)
# if before_group is none, the group doesn't exist.
if before_group == {}:
if state == 'absent':
# nothing to do.
if module._diff:
result['diff'] = dict(before='', after='')
result['msg'] = 'Group does not exist; doing nothing.'
result['group'] = dict()
module.exit_json(**result)
# for 'present', create a new group.
result['changed'] = True
if name is None:
module.fail_json(msg='name must be specified when creating a new group')
if module._diff:
result['diff'] = dict(before='', after=updated_group)
if module.check_mode:
module.exit_json(**result)
# do it for real!
kc.create_group(updated_group, realm=realm)
after_group = kc.get_group_by_name(name, realm)
result['group'] = after_group
result['msg'] = 'Group {name} has been created with ID {id}'.format(name=after_group['name'],
id=after_group['id'])
else:
if state == 'present':
# no changes
if updated_group == before_group:
result['changed'] = False
result['group'] = updated_group
result['msg'] = "No changes required to group {name}.".format(name=before_group['name'])
module.exit_json(**result)
# update the existing group
result['changed'] = True
if module._diff:
result['diff'] = dict(before=before_group, after=updated_group)
if module.check_mode:
module.exit_json(**result)
# do the update
kc.update_group(updated_group, realm=realm)
after_group = kc.get_group_by_groupid(updated_group['id'], realm=realm)
result['group'] = after_group
result['msg'] = "Group {id} has been updated".format(id=after_group['id'])
module.exit_json(**result)
elif state == 'absent':
result['group'] = dict()
if module._diff:
result['diff'] = dict(before=before_group, after='')
if module.check_mode:
module.exit_json(**result)
# delete for real
gid = before_group['id']
kc.delete_group(groupid=gid, realm=realm)
result['changed'] = True
result['msg'] = "Group {name} has been deleted".format(name=before_group['name'])
module.exit_json(**result)
module.exit_json(**result)
if __name__ == '__main__':
main()