Keycloak Admin Ruby

Ruby client that acts as a client for the Keycloak REST API. This gem basically acts as an url builder using http-client to get responses and serialize them into representation objects.

Warning: This beta gem is currently used for personal use. Most Keycloak Admin features are not implemented yet.

Install

This gem does not require Rails. For example, using bundle, add this line to your Gemfile.

gem "keycloak-admin", "1.0.24"

Login

To login on Keycloak's Admin API, you first need to setup a client.

Go to your realm administration page and open Clients. Then, click on the Create button. On the first screen, enter:

• Client ID: e.g. my-app-admin-client
• Client Protocol: select openid-connect
• Root URL: let it blank

The next screen must be configured depending on how you want to authenticate:

• username/password with a user of the realm
• Direct Access Grants with a service account

Login with username/password (realm user)

• In Keycloak, during the client setup:

  • Access Type: public or confidential
  • Service Accounts Enabled (when confidential): false
  • After saving your client, if you have chosen a confidential client, go to Credentials tab and copy the Client Secret

• In Keycloak, create a dedicated user (and her credentials):

  • Go to Users
  • Click on the Add user button
  • Setup her mandatory information, depending on your realm's configuration
  • On the Credentials tab, create her a password (toggle off Temporary)

• In this gem's configuration (see Section Configuration):

  • Setup username and password according to your user's configuration
  • Setup client_id with your Client ID (e.g. my-app-admin-client)
  • If your client is confidential, copy its Client Secret to client_secret

Login with Direct Access Grants (Service account)

Using a service account to use the REST Admin API does not require to create a dedicated user (https://www.keycloak.org/docs/latest/server_admin/#_service_accounts).

• In Keycloak, during the client setup:

  • Access Type: confidential
  • Service Accounts Enabled (when confidential): true
  • Standard Flow Enabled: false
  • Implicit Flow Enabled: false
  • Direct Access Grants Enabled: true
  • After saving this client
    • open the Service Account Roles and add relevant realm-management. client's roles. For instance: view-users if you want to search for users using this gem.
    • open the Credentials tab and copy the Client Secret

• In this gem's configuration (see Section Configuration):

  • Set use_service_account to true
  • Setup client_id with your Client ID (e.g. my-app-admin-client)
  • Copy its Client Secret to client_secret

Configuration

To configure this gem, call KeycloakAdmin.configure. For instance, to configure this gem based on environment variables, write (and load if required) a keycloak_admin.rb:

KeycloakAdmin.configure do |config|
  config.use_service_account = false
  config.server_url          = ENV["KEYCLOAK_SERVER_URL"]
  config.server_domain       = ENV["KEYCLOAK_SERVER_DOMAIN"]
  config.client_id           = ENV["KEYCLOAK_ADMIN_CLIENT_ID"]
  config.client_realm_name   = ENV["KEYCLOAK_REALM_ID"]
  config.username            = ENV["KEYCLOAK_ADMIN_USER"]
  config.password            = ENV["KEYCLOAK_ADMIN_PASSWORD"]
  config.logger              = Rails.logger

  # You configure RestClient to your liking – see https://github.com/rest-client/rest-client/blob/master/lib/restclient/request.rb for available options.
  config.rest_client_options = { timeout: 5 }
end

This example is autoloaded in a Rails environment.

Overall configuration options

All options have a default value. However, all of them can be changed in your initializer file.

Option	Default Value	Type	Required?	Description	Example
server_url	nil	String	Required	The base url where your Keycloak server is located (a URL that starts with http and that ends with /auth). This value can be retrieved in your Keycloak client configuration.	http://auth:8080/auth
server_domain	nil	String	Required	Public domain that identify your authentication cookies.	auth.service.io
client_realm_name	""	String	Required	Name of the realm that contains the admin client.	master
client_id	admin-cli	String	Required	Client that should be used to access admin capabilities.	api-cli
client_secret	nil	String	Optional	If your client is confidential, this parameter must be specified.	4e3c481c-f823-4a6a-b8a7-bf8c86e3eac3
use_service_account	true	Boolean	Required	true if the connection to the client uses a Service Account. false if the connection to the client uses a username/password credential.	false
username	nil	String	Optional	Username to access the Admin REST API. Recommended if user_service_account is set to false.	mummy
password	nil	String	Optional	Clear password to access the Admin REST API. Recommended if user_service_account is set to false.	bobby
logger	Logger.new(STDOUT)	Logger	Optional	The logger used by keycloak-admin	Rails.logger
rest_client_options	{}	Hash	Optional	Options to pass to RestClient	{ timeout: 5 }

Use Cases

Supported features

• Get an access token
• Create/update/get/delete a user
• Get list of users, search for user(s)
• Reset credentials
• Impersonate a user
• Exchange a configurable token
• Get list of clients, or find a client by its id or client_id
• Create, update, and delete clients
• Get list of groups, create/save a group
• Get list of roles, save a role
• Get list of realms, save/update/delete a realm
• Get list of client role mappings for a user/group
• Get list of members of a group
• Get list of groups that have a specific role assigned
• Get list of realm-roles assigned to a group, add a realm-role to a group
• Save client role mappings for a user/group
• Save realm-level role mappings for a user/group
• Add a Group on a User
• Remove a Group from a User
• Get list of Identity Providers
• Create Identity Providers
• Link/Unlink users to federated identity provider brokers
• Execute actions emails
• Send forgot passsword mail

Get an access token

Returns an instance of KeycloakAdmin::TokenRepresentation.

KeycloakAdmin.realm("a_realm").token.get

Get a user from its identifier

Returns an instance of KeycloakAdmin::UserRepresentation or nil when this user does not exist.

user_id = "95985b21-d884-4bbd-b852-cb8cd365afc2"
KeycloakAdmin.realm("a_realm").users.get(user_id)

Search for users

Returns an array of KeycloakAdmin::UserRepresentation.

According to the documentation:

• When providing a String parameter, this produces an arbitrary search string
• When providing a Hash, you can search for specific field (e.g an email)

KeycloakAdmin.realm("a_realm").users.search("a_username_or_an_email")

KeycloakAdmin.realm("a_realm").users.search({ email: "john@doe.com" })

List all users in a realm

Returns an array of KeycloakAdmin::UserRepresentation.

KeycloakAdmin.realm("a_realm").users.list

Save a user

Returns the provided user, which must be of type KeycloakAdmin::UserRepresentation.

KeycloakAdmin.realm("a_realm").users.save(user)

Update a user

If you want to update its entire entity. To update some specific attributes, provide an object implementing to_json, such as a Hash.

KeycloakAdmin.realm("a_realm").users.update("05c135c6-5ad8-4e17-b1fa-635fc089fd71", {
  email: "hello@gmail.com",
  username: "hello",
  first_name: "Jean",
  last_name: "Dupond"
})

Attention point: Since Keycloak 24.0.4, when updating a user, all the writable profile attributes must be passed, otherwise they will be removed. (https://www.keycloak.org/docs/24.0.4/upgrading/)

Delete a user

KeycloakAdmin.realm("a_realm").users.delete(user_id)

Create and save a user with password and a locale

Returns the created user of type KeycloakAdmin::UserRepresentation.

username       = "pioupioux"
email          = "pioupioux@email.com"
password       = "acme0"
email_verified = true
locale         = "en"
KeycloakAdmin.realm("a_realm").users.create!(username, email, password, email_verified, locale)

Reset a password

user_id      = "95985b21-d884-4bbd-b852-cb8cd365afc2"
new_password = "coco"
KeycloakAdmin.realm("a_realm").users.update_password(user_id, new_password)

Impersonate a password directly

Returns an instance of KeycloakAdmin::ImpersonationRepresentation.

user_id = "95985b21-d884-4bbd-b852-cb8cd365afc2"
KeycloakAdmin.realm("a_realm").users.impersonate(user_id)

Impersonate a password indirectly

To have enough information to execute an impersonation by yourself, get_redirect_impersonation returns an instance of KeycloakAdmin::ImpersonationRedirectionRepresentation.

user_id = "95985b21-d884-4bbd-b852-cb8cd365afc2"
KeycloakAdmin.realm("a_realm").users.get_redirect_impersonation(user_id)

Exchange a configurable token

Requires your Keycloak server to have deployed the Custom REST API configurable-token (https://github.com/looorent/keycloak-configurable-token-api) Returns an instance of KeycloakAdmin::TokenRepresentation.

user_access_token         = "abqsdofnqdsogn"
token_lifespan_in_seconds = 20
KeycloakAdmin.realm("a_realm").configurable_token.exchange_with(user_access_token, token_lifespan_in_seconds)

Get list of realms

Returns an array of KeycloakAdmin::RealmRepresentation.

KeycloakAdmin.realm("master").list

Save a realm

Takes realm of type KeycloakAdmin::RealmRepresentation, or an object implementing to_json, such as a Hash.

KeycloakAdmin.realm(nil).save(realm)

Update a realm

If you want to update its entire entity. To update some specific attributes, provide an object implementing to_json, such as a Hash.

KeycloakAdmin.realm("a_realm").update({
  smtpServer: { host: 'test_host' }
})

Delete a realm

KeycloakAdmin.realm("a_realm").delete

Get list of clients in a realm

Returns an array of KeycloakAdmin::ClientRepresentation or a single KeycloakAdmin::ClientRepresentation

Finding a client by its client_id is a somewhat slow operation, as it requires fetching all clients and then filtering. Keycloak's API does not support fetching a client by its client_id directly.

KeycloakAdmin.realm("a_realm").clients.list
KeycloakAdmin.realm("a_realm").clients.get(id) # id is Keycloak's database id, not the client_id
KeycloakAdmin.realm("a_realm").clients.find_by_client_id(client_id)

Updating a client

my_client = KeycloakAdmin.realm("a_realm").clients.get(id)

my_client.name        = "My new client name"
my_client.description = "This is a new description"
my_client.redirect_uris << "https://www.example.com/auth/callback"

KeycloakAdmin.realm("a_realm").clients.update(client) # Returns the updated client

Get list of groups in a realm

Returns an array of KeycloakAdmin::GroupRepresentation.

KeycloakAdmin.realm("a_realm").groups.list

Search for a group

Returns an array of KeycloakAdmin::GroupRepresentation.

According to the documentation:

• When providing a String parameter, this produces an arbitrary search string
• When providing a Hash, you can specify other fields (e.g q, max, first)

KeycloakAdmin.realm("a_realm").groups.search("MyGroup")

KeycloakAdmin.realm("a_realm").groups.search({query: "MyGroup", exact: true, max: 1})

Save a group

Returns the id of saved group provided, which must be of type KeycloakAdmin::GroupRepresentation.

KeycloakAdmin.realm("a_realm").groups.save(group)

Create and save a group with a name and path

Returns the id of created group.

group_name = "test"
group_path = "/top"
group_id = KeycloakAdmin.realm("a_realm").groups.create!(group_name, group_path)

Create a new subgroup of an existing group

Create a new group as the child of an existing group.

parent_id = "7686af34-204c-4515-8122-78d19febbf6e"
group_name = "test"
sub_group_id = KeycloakAdmin.realm("a_realm").groups.create_subgroup!(parent_id, group_name)

Get list of members of a group

Returns an array of KeycloakAdmin::UserRepresentation.

KeycloakAdmin.realm("a_realm").group("group_id").members

You can specify paging with first and max:

KeycloakAdmin.realm("a_realm").group("group_id").members(first:0, max:100)

Get list of groups that have a specific role assigned

Returns an array of KeycloakAdmin::GroupRepresentation

KeycloakAdmin.realm("a_realm").roles.list_groups("role_name")

Get list of realm-roles assigned to a group

Returns an array of KeycloakAdmin::RoleRepresentation

KeycloakAdmin.realm("a_realm").groups.get_realm_level_roles("group_id")

Add a realm-role to a group

Returns added KeycloakAdmin::RoleRepresentation

KeycloakAdmin.realm("a_realm").groups.add_realm_level_role_name!("group_id", "role_name")

Get list of roles in a realm

Returns an array of KeycloakAdmin::RoleRepresentation.

KeycloakAdmin.realm("a_realm").roles.list

Save a role

Takes role, which must be of type KeycloakAdmin::RoleRepresentation.

KeycloakAdmin.realm("a_realm").roles.save(role)

Get list of client role mappings for a user/group

Returns an array of KeycloakAdmin::RoleRepresentation.

user_id   = "95985b21-d884-4bbd-b852-cb8cd365afc2"
client_id = "1869e876-71b4-4de2-849e-66540db3a098"
KeycloakAdmin.realm("a_realm").user(user_id).client_role_mappings(client_id).list_available

or

group_id  = "3a63b5c0-ef8a-47fd-86ed-b5fead18d9b8"
client_id = "1869e876-71b4-4de2-849e-66540db3a098"
KeycloakAdmin.realm("a_realm").group(group_id).client_role_mappings(client_id).list_available

Save list of client role mappings for a user/group

Takes role_list, which must be an array of type KeycloakAdmin::RoleRepresentation.

user_id   = "95985b21-d884-4bbd-b852-cb8cd365afc2"
client_id = "1869e876-71b4-4de2-849e-66540db3a098"
KeycloakAdmin.realm("a_realm").user(user_id).client_role_mappings(client_id).save(role_list)

or

group_id  = "3a63b5c0-ef8a-47fd-86ed-b5fead18d9b8"
client_id = "1869e876-71b4-4de2-849e-66540db3a098"
KeycloakAdmin.realm("a_realm").group(group_id).client_role_mappings(client_id).save(role_list)

Save list of realm-level role mappings for a user/group

Takes role_list, which must be an array of type KeycloakAdmin::RoleRepresentation.

user_id   = "95985b21-d884-4bbd-b852-cb8cd365afc2"
KeycloakAdmin.realm("a_realm").user(user_id).role_mapper.save_realm_level(role_list)

or

group_id  = "3a63b5c0-ef8a-47fd-86ed-b5fead18d9b8"
KeycloakAdmin.realm("a_realm").group(group_id).role_mapper.save_realm_level(role_list)

Get list of identity providers

Note: This client requires the realm-management.view-identity-providers role.

Returns an array of KeycloakAdmin::IdentityProviderRepresentation.

KeycloakAdmin.realm("a_realm").identity_providers.list

How to execute library tests

From the keycloak-admin-api directory:

  $ docker build . -t keycloak-admin:test
  $ docker run -v `pwd`:/usr/src/app/ keycloak-admin:test rspec spec