reverse-proxy server

Configuring NGINX for OAuth/OpenID Connect SSO with Keycloak/Red Hat SSO

Configuring NGINX for OAuth/OpenID Connect SSO with Keycloak/Red Hat SSO

In this article I cover configuring NGINX for OAuth-based Single Sign-On (SSO) using Keycloak/Red Hat SSO. This allows the use of OpenID Connect (OIDC) for federated identity. This configuration is helpful when NGINX is acting as a reverse-proxy server for a backend application server, for example, Tomcat or JBoss, where the authentication is to be performed by the web server.

In this setup, Keycloak will act as an authorization server in OAuth-based SSO and NGINX will be the relaying party.  We will be using lua-resty-openidc, which is a library for NGINX implementing the OpenID Connect relying party (RP) and/or the OAuth 2.0 resource server (RS) functionality.

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