Introduction

• The JS7 - Identity Services offer integration with Keycloak® Authentication Server.
• The Keycloak® Identity Service integration is available from JOC Cockpit:
  • This requires Keycloak® to be installed and operated. Keycloak® is not a built-in Identity Service Provider and does not ship with JS7.
  • JS7 implements a REST client for use with Keycloak® 16.0 and newer.

Identity Service Types

The following integration levels are available from Identity Service Types that can be used with Keycloak:

Explanation:

• Service Type: KEYCLOAK
  • Management of user accounts and passwords is performed by the Keycloak Server.
  • In addition, an automated mapping of roles - assigned a user account in Keycloak - to roles in JOC Cockpit takes place.
  • The JOC Cockpit does not know any user accounts, passwords and role assignments as this information is managed with Keycloak exclusively.
• Service Type: KEYCLOAK-JOC
  • Management of user accounts and passwords is performed by the Keycloak Server.
  • The assignment of roles to user accounts is performed with the JOC Cockpit and is stored with the JS7 database.
  • The JOC Cockpit knows user accounts and role assignments. The JOC Cockpit does not know passwords as this information is managed with Keycloak exclusively.

Keycloak Authentication Methods

JS7 supports the following authentication methods with Keycloak:

• Account & Password
• LDAP
  • It is not required to use Keycloak to connect to an LDAP Directory Service as there is a built-in JS7 - LDAP Identity Service for this purpose.
  • This authentication method can be used with the KEYCLOAK Identity Service Type.

JS7 does not support cloud based authentication methods with Keycloak.

Keycloak Server Configuration

The following objects have to be in place with Keycloak to enable authentication from JOC Cockpit: 

• Realm Configuration 
• Client Configuration
• User Accounts
• Roles
  • Roles are used with the Identity Service Type KEYCLOAK. Roles in Keycloak are not applicable when using the Identity Service Type KEYCLOAK-JOC.

Realm

It is recommended to create a new Realm and not to use the Master Realm. 

If no Keycloak Realm is present then it can be added in Keycloak. The default settings are sufficient. The Realm has to be enabled.

Client

If no Keycloak Client is present then it can be added in Keycloak. 

• Enabled: On
• Direct Access Grants Enabled: On
• Client Protocol: openid-connect
• Access  Type: confidental
• Credentials/Client Authenticator: Client ID and Secret. 
• Roles: New roles can be added to the Client.

Roles

An administrative role has to be added to the Realm. The administrative role is assigned the following Client Roles:

• realm-management.view-clients
• realm-management.view-users

If the KEYCLOAK Identity Service Type is used then the names of roles in Keycloak have to match the roles in JOC Cockpit.

If the KEYCLOAK-JOC Identity Service Type is used then roles in Keycloak are not considered. Instead roles are assigned to accounts in JOC Cockpit..

User Accounts

Administrative account

• The Keycloak administrative user account has to use password credentials.
• The Keycloak administrative user account is assigned the "admin" role.

JOC Accounts

For each account that should be able to login into JOC Cockpit, a user account has to be added.

• Enabled: On
• Required User Actions: none
• Email Verified: Off
• Credentials: Password 
• Credentials Temporary: Off

Authentication Methods

Account & Password

• If the KEYCLOAK Identity Service Type is used then:
  • user accounts are managed by Keycloak,
  • roles have to be set up in Keycloak with names that exactly match the names of roles in the JOC Cockpit.
    • a user account will be assigned the JOC Cockpit roles matching Keycloak role names when performing a login to the JOC Cockpit.
    • it is not required to add specific permissions to roles with Keycloak.
• If the KEYCLOAK-JOC Identity Service Type is used then:
  • user accounts are managed by Keycloak.
  • user accounts are added to the JOC Cockpit to allow assignment of roles:
    • user accounts in Keycloak and in the JOC Cockpit have to match as otherwise the user account is not assigned a role.
    • passwords are managed by Keycloak exclusively.

LDAP

• It is not required to use Keycloak to connect to an LDAP Directory Service as there is the built-in JS7 - LDAP Identity Service for this purpose.
• The authentication method has to be added to Keycloak.
  • Authentication with the LDAP authentication service in Keycloak is possible using the user federation provider LDAP in Keycloak.
• The KEYCLOAK Identity Service Type has to be used, meaning that:
  • user accounts are managed with Keycloak.
  • user accounts are added to the JOC Cockpit to allow assignment of roles:
    • user accounts in Keycloak and in JOC Cockpit have to match as otherwise the user account is not assigned a role.
    • passwords are managed by Keycloak exclusively.

Access Tokens

When a user logs in to the JOC Cockpit then user credentials are forwarded to the Keycloak Server that authenticates the user and returns an access token.

• Realms/Tokens
  • Access Token Lifespan: When exceeding the lifespan an access token will expire. The access token is automatically renewed by JOC Cockpit 20s before expiration. If Client Session Idle is shorter than Access Token Lifespan then the access token will be renewed 20s before Client Session Idle expires.
  • Client Session Idle: After the idle timeout the session will expire. The access token and implicitly the session are automatically renewed by JOC Cockpit 20s before idle timeout.
  • Client Session Max: After this period a session can no longer be renewed. It is recommended to set this value to a larger value then the session timeout configured in JOC Cockpit.
  • SSO Session Idle: Used when Client Session Idle is not set.
  • SSO Session Max: Used when Client Session Max is not set.

• Keycloak access tokens are created with the following restrictions:
  • Time to Live (TTL):
    • The access token will expire after the given period (Access Token Lifespan).
    • The session will expire after the given period (Client Session Idle)
    • The Identity Service renews the access token 20s before expiration of the session or of the access token, this step is performed until Session Max is reached. This requires that the access token's TTL exceeds 60s and that the Keycloak permission for renewal of an access token by its owner is in place.
  • Maximum Time to Live:
    • The access token's overall lifetime is limited (Session Max), renewals cannot take place after the specified period.
• If an access token cannot be renewed by the Identity Service then the user session is terminated and the user is forced to login and to specify credentials.
  • This happens in the event that the maximum TTL is exceeded or that the token is revoked.
  • Keycloak administrators should check for reasonable values of the session TTL (Session Idle) and the Access Token Lifespan, maybe not less than 300s, and the maximum TTL (Session Max) typically at least 15 minutes, as otherwise users will have to repeatedly login quite frequently.
• The JOC Cockpit handles the idle timeout of user sessions independently from Keycloak, see JS7 - Identity Services.
  • If the idle timeout is exceeded then the user session is terminated.
  • The Identity Service will revoke the access token with the Keycloak Server on termination of the user session.

Identity Service Configuration

The  icon in the JOC Cockpit main menu is used to select the Manage Identity Services page:

Add Identity Service

To add an Identity Service use the button Add Identity Service from the page shown above, listing the available Identity Services:

The remaining input fields for the popup window look like this:

Explanation:

• The Identity Service Name is a unique identifier that can be freely chosen.
• The Identity Service Type can be selected as available from the above list.
• The Ordering specifies the sequence in which a login is performed with available Identity Services.
• The Required attribute specifies if login with the respective Identity Service is required to be successful, for example if a number of Identity Services are triggered on login of a user account.
• The Identity Service Authentication Scheme allows to select
  • single-factor authentication: user account and password are specified for login with the Identity Service.
  • two-factor authentication: in addition to user account and password a Client Authentication Certificate is required - see the JS7 - Certificate based Authentication article for more information.

Identity Service Settings

Having added a Keycloak Identity Service it is required to add settings for Keycloak integration from the Identity Service's Manage Settings action menu item:

For use with the Keycloak Identity Service:

• the Keycloak product has to be installed and has to be accessible for JOC Cockpit and
• the following settings have to be specified: 
  
  

Explanation:

• Keycloak URL: the base URL for which the Keycloak REST API is available. 
• Keycloak Administration Account: A Keycloak account with an administrative role that is assigned the realm-management.view-clients and realm-management.view-users roles.
  • The administration account is used to retrieve the roles for a Keycloak account and for renewing access tokens.
• Keycloak Administration Password: The password for the Keycloak Administration Account.
• Keycloak Truststore Path:  Should the Keycloak Server be configured for HTTPS connections then the indicated truststore has to include an X.509 certificate specified for the Extended Key Usage of Server Authentication.
  • The truststore can include a Private CA-signed Certificate or a Public CA-signed Certificate. Typically the Root CA Certificate is used as otherwise the complete certificate chain involved in signing the Server Authentication Certificate has to be available with the truststore.
  • If the Keycloak Server is operated for HTTPS connections and this setting is not specified then the JOC Cockpit will use the truststore that is configured with the JETTY_BASE/resources/joc/joc.properties configuration file. This includes use of settings for the truststore password and truststore type.
  • The path to the truststore is specified relative to the JETTY_BASE/resources/joc directory. If the truststore is located in this directory then only the file name is specified, typically with a .p12 extension. Other relative locations can be specified using, for example, ../../joc-truststore.p12 if the truststore is located in the JETTY_BASE directory. An absolute path cannot be specified and a path cannot be specified that lies before the JETTY_BASE directory in the file system hierarchy.
• Keycloak Truststore Password: If the Keycloak Server is configured for HTTPS connections and the indicated truststore is protected by a password then the password has to be specified.
• Keycloak Truststore Type: If the Keycloak Server is configured for HTTPS connections then the type of the truststore has to be specified being either PKCS12 or JKS (deprecated).
• Keycloak Clients are entities that request Keycloak to authenticate a user account. For example, an application such as JOC Cockpit acts as a Client to the Keycloak Server. Clients use Keycloak to authenticate and to provide a single sign-on solution.
  
  • Keycloak Client ID and Keycloak Client Secret are used for 
    • requesting an access token
      • for user authentication,
      • for administrative access,
    • validating an existing access token,
    • renewing an existing access token.
  • Keycloak Client Secret: The Client owns a secret which needs to be known by both the Keycloak Server and the JOC Cockpit.
• Keycloak Realm: A realm manages a set of users, credentials, roles, and groups. A user belongs to a realm and performs a login to a realm. Realms are isolated from each other, they manage and authenticate exclusively user accounts that they control.

Logging

• Log Files
  • See JS7 - Log Files and Locations
• Standard Log Files
  • Identity Services log output to the JETTY_BASE/logs/joc.log file. This includes reporting success or failure of authentication.
  • Successful and failed authentication attempts including the user accounts involved are logged to the JETTY_BASE/logs/audit.log file.
• Debug Log Files
  • For problem analysis during setup of an Identity Service increase the log level as explained with JS7 - Log Levels and Debug Options.
  • The JETTY_BASE/logs/joc-debug.log file includes general debug output of JOC Cockpit.
  • The JETTY_BASE/logs/authentication-debug.log file includes debug output related to authentication and authorization.
  • The JETTY_BASE/logs/jetty.log file includes debug output of attempts to establish SSL connections.