Configure our Application

The application needs some configuration specific to keycloak. For most Keycloak adapters, this configuration exists in the keycloak.json file:

{
    "realm": "katacoda",
    "auth-server-url": "https://[[HOST_SUBDOMAIN]]-8443-[[KATACODA_HOST]].environments.katacoda.com/auth",
    "ssl-required": "external",
    "resource": "web-client"
  }

• realm : The realm in which this service belongs
• auth-server-url : This is the url of our Keycloak instance.
• resource : The name of the client defined in Keycloak

Create the client in Keycloak

Manual creation

You can manually create the client in the Keycloak console. Go the Keycloak Web Console then open the Clients screen, click on Create and enter the following values:

• Client ID : web-client
• Root URL : https://[[HOST_SUBDOMAIN]]-8000-[[KATACODA_HOST]].environments.katacoda.com

Click save and you are done.

Import the client with a rest call

Just execute this script:

export access_token=$(\ curl -X POST https://[[HOST_SUBDOMAIN]]-8443-[[KATACODA_HOST]].environments.katacoda.com/auth/realms/master/protocol/openid-connect/token \ -H 'content-type: application/x-www-form-urlencoded' \ -d 'username=admin&password=admin&grant_type=password&client_id=admin-cli' | jq --raw-output '.access_token' \ ) curl -v -X POST https://[[HOST_SUBDOMAIN]]-8443-[[KATACODA_HOST]].environments.katacoda.com/auth/admin/realms/katacoda/clients -H 'content-type: application/json' -H "Authorization: Bearer "$access_token -d @/root/web-client.json