How can Keycloak be used behind an NGINX proxy?

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To use Keycloak behind an NGINX proxy, you should follow the below steps:

1. Configure Keycloak to use HTTPS (SSL/TLS).

2. Create an NGINX server block for your Keycloak installation.

3. Configure the proxy_pass directive to forward requests to Keycloak.

4. Set up NGINX to handle SSL/TLS.

5. Ensure that the following headers are passed to Keycloak by adding them to your NGINX configuration: Host, X-Forwarded-For, X-Forwarded-Proto.

6. Set a specific cookie domain to ensure that the cookie is shared between NGINX and Keycloak.

7. Lastly, restart NGINX and Keycloak.

These steps will help you use Keycloak behind an NGINX proxy.