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+# OpenID Connect
+
+The OpenID Connect (OIDC) feature allows third-party applications to verify the identity of the end-user and to obtain basic user profile information. Instead of managing usernames and passwords directly **trento-web console will rely on an identity provider (IDP) to authenticate users**.
+
+## Enabling OIDC
+
+The OIDC feature is **disabled by default**.
+
+Provide the following environment variable to enable OIDC feature when starting Trento.
+
+```
+ENABLE_OIDC=true
+OIDC_CLIENT_ID=<<OIDC_CLIENT_ID>>
+OIDC_CLIENT_SECRET=<<OIDC_CLIENT_SECRET>>
+OIDC_BASE_URL=<<OIDC_BASE_URL>>
+OIDC_CALLBACK_URL=<<OIDC_CALLBACK_URL>>
+```
+
+## Enabling OIDC in Development
+
+Enable OpenID Connect (OIDC) in the development environment using Docker and [Keycloak](https://github.com/keycloak/keycloak) as a simulated Identity Provider (IDP).
+
+### Enable OIDC in dev environment by editing `config/dev.exs`
+
+Before:
+
+```
+config :trento, :oidc,
+  enabled: false,
+  callback_url: "http://localhost:4000/auth/oidc_callback"
+```
+
+After:
+
+```
+config :trento, :oidc,
+  enabled: true,
+  callback_url: "http://localhost:4000/auth/oidc_callback"
+```
+
+### Starting the Keycloak Identity Provider
+
+We use a custom Docker profile to start Keycloak as the Identity Provider (IDP) for local development.
+
+Start the Docker containers with the `IDP` profile:
+
+```
+docker-compose --profile idp up
+```
+
+### Starting Trento Web console
+
+```
+iex -S mix phx.server
+```
+
+### Access the Trento Web or Keycloak
+
+Access the Trento Web by navigating to http://localhost:4000 in the web browser.
+Access the Keycloak server by navigating to http://localhost:8081 in the web browser.
+
+### Login into Trento web console by using Single Sign-on with Keycloak
+
+1. Navigate to the Trento web interface.
+
+2. Click on `Login with Single Sign-on`:
+
+![LoginView](loginView.png)
+
+You will be redirected to the Keycloak login page:
+![KeycloakLoginView](keycloakView.png)
+
+### Login as Trento user through keycloak IDP
+
+The default Trento login credentials are:
+
+Username:
+
+```
+trentoidp
+```
+
+Password:
+
+```
+password
+```
+
+After successfully entering user login data, the user is redirected to Trento web console.
+
+### Logging into the Keycloak Admin Console
+
+Username:
+
+```
+keycloak
+```
+
+Password:
+
+```
+admin
+```
+
+### Assigning Admin Rights to the Trento User
+
+Grant admin rights to the `trentoidp` user, update the `config/dev.exs` file as follows , then restart the application
+
+```
+config :trento,
+  admin_user: "trentoidp"
+
+config :trento, :oidc,
+  enabled: true,
+  callback_url: "http://localhost:4000/auth/oidc_callback"
+```