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Keycloak OIDC

1. Keycloak Client Configuration

Step 1: Log in to the Keycloak Admin Console

  1. Go to your Keycloak admin console (e.g., https://auth.example.com/).
  2. Log in with your admin credentials.

Step 2: Create a New Realm (Optional)

If you don't already have a realm:

  1. Click Add Realm in the left-hand menu.
  2. Name your realm (e.g., unifi-voucher).
  3. Save the realm.

Create Realm

Step 3: Create a Client

  1. Inside your realm, go to Clients in the left-hand menu.
  2. Click Create.
  3. Fill in the following fields:
    • Client ID: unifi-voucher-site (You can choose any name relevant to your UniFi Voucher Site).
    • Client Protocol: openid-connect.
    • Click Save.

Create Client

Step 4: Configure the Client

You’ll see various tabs for configuring the client. Set the following fields:

  1. Go to the Settings tab.

  2. Set Access Type to confidential.

  3. Ensure Standard Flow Enabled is set to ON.

  4. Set Valid Redirect URIs to your UniFi voucher callback URL (e.g., https://voucher.example.com/oidc/callback).

  5. Click Save.

  6. After saving, go to the Credentials tab to get the Client Secret. This secret will be used by your UniFi Voucher Site when authenticating as a confidential client.

Client Settings 1 Client Settings 2 Client Secret

2. UniFi Voucher Site Configuration

Now, configure your UniFi Voucher Site to use the Keycloak client.

  1. In your UniFi Voucher Site configuration, set AUTH_OIDC_ENABLED to true.
  2. Set the AUTH_OIDC_CLIENT_ID as configured in Keycloak (e.g., unifi-voucher-site).
  3. Provide the AUTH_OIDC_CLIENT_SECRET (found in the Credentials tab in Keycloak).
  4. Provide the AUTH_OIDC_ISSUER_BASE_URL from your Keycloak server (e.g., https://auth.example.com/realms/{realm}/.well-known/openid-configuration).
  5. Provide the AUTH_OIDC_APP_BASE_URL from your UniFi Voucher Site instance (e.g., https://voucher.example.com).
  6. Restart the container after these changes

3. Testing and Troubleshooting

  1. Test the login flow from your UniFi Voucher Site. Ensure it redirects to Keycloak for authentication.
  2. After logging in, the user should be redirected back to the voucher site with the appropriate tokens.

Common Issues

  • Invalid Redirect URI: Ensure the callback URI matches what is configured in Keycloak.
  • Client Secret Errors: Double-check the client secret in both Keycloak and your UniFi configuration.