To enable login with GitHub you first have to create an application in GitHub Settings. Then you need to copy the client id and secret into the Keycloak Admin Console. Log in to GitHub Settings. Click the Register new application button. Use any value for Application name, Homepage URL and Application Description you want. In Authorization callback URL enter the social callback url for your realm. Click the Register application button. Copy Client ID and Client secret from the GitHub Settings into the settings page in the Keycloak Admin Console as the Key and Secret. Then click Save in the Keycloak Admin Console to enable login with GitHub.