Configuring an External Key Manager

You can configure an external Key Manager or a Token Service in the following ways depending on the Choreo Connect mode you have chosen.

Mode Method
Choreo Connect with WSO2 API Manager as a Control Plane Via WSO2 API Manager Admin Portal
Choreo Connect as a Standalone Gateway Via the Choreo Connect Config File

Via WSO2 API Manager Admin Portal

Choreo Connect provides the capability to configure external Key Managers through the API Manager Admin Portal. The issuer data is retrieved from the event hub at the startup, and updated as the changes are made from the Admin Portal.

Step 1 - Configure Choreo Connect with API Manager

Please refer Configure Choreo Connect with API Manager.

Step 2 - Add the external key manager to API Manager

Please refer Multiple Key Manager Support in WSO2 API Manager to configure the desired key manager.

Note

Please note that Choreo Connect only supports self-validation of JWT tokens from key managers. (JWT tokens will be validated against the issuer data.)

Important

Token services which are added from the config.toml file under enforcer.security.tokenService configuration will be overridden from the retrieved key manager configurations from the API Manager if the issuers are identical. Furthermore, if the corresponding key manager is removed from the API Manager admin portal, the token service added from the configuration will be used.

Via the Choreo Connect Config File

When Choreo Connect runs as a standalone Gateway, the external Key Managers, Token Services or JWT issuers used for API authentication must be configured in the config.toml. To know what these parameters mean, go through the descriptions given under Token Service in Enforcer Configurations. The following are the token services configured by default. The template with the default values can also be found in config.toml.template located together with config.toml.

# Issuer 1
[[enforcer.security.tokenService]]
  name="Resident Key Manager"
  issuer = "https://localhost:9443/oauth2/token"
  certificateAlias = "wso2carbon"
  jwksURL = "https://apim:9443/t/wso2.com/oauth2/jwks"
  validateSubscription = false
  consumerKeyClaim = "azp"
  certificateFilePath = "/home/wso2/security/truststore/wso2carbon.pem"

# Issuer 2
[[enforcer.security.tokenService]]
  name = "MGW"
  issuer = "https://localhost:9095/testkey"
  certificateAlias = "mgw"
  jwksURL = ""
  validateSubscription = false
  consumerKeyClaim = ""
  certificateFilePath = "/home/wso2/security/truststore/mg.pem"

# Issuer 3
[[enforcer.security.tokenService]]
  name = "APIM Publisher"
  issuer = "https://localhost:9443/publisher"
  validateSubscription = true
  certificateAlias = ""
  certificateFilePath = "/home/wso2/security/truststore/wso2carbon.pem"

Tip

In the configuration file (config.toml or config-toml-configmap.yaml depending on whether you have deployed Choreo Connect on Docker Compose or K8s), the token services are configured as an array in toml format. Therefore when updating the token services, the entire array or all the token services required must exist in this file for all of them to be used. If none of the [[enforcer.security.tokenService]] sections are present, then the default array that consists of,

  • "Resident Key Manager" of WSO2 API-M
  • token service exposed by Choreo Connect Enforcer named as "MGW"
  • token service exposed by WSO2 API-M Publisher

will be set as shown given above.

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