keycloak 无效参数：反向代理后面的redirect_uri

如何正确配置NGINX作为Keycloak前面的代理？

作为文档询问和回答这个问题，因为我现在不得不重复这样做，并且在一段时间后忘记了细节。

这是专门处理 Keycloak 位于反向代理后面的情况，例如nginx 和 NGINX 正在终止 SSL 并推送到 Keycloak。这与以下问题不是同一个问题keycloak 无效参数：redirect_uri https://stackoverflow.com/questions/45352880/keycloak-invalid-parameter-redirect-uri尽管它会产生相同的错误消息。

关键在于文档中https://www.keycloak.org/docs/latest/server_installation/index.html#identifying-client-ip-addresses https://www.keycloak.org/docs/latest/server_installation/index.html#identifying-client-ip-addresses

The proxy-address-forwarding必须设置以及各种X-...标头。

如果您使用的是来自https://hub.docker.com/r/jboss/keycloak/ https://hub.docker.com/r/jboss/keycloak/然后设置环境。精氨酸-e PROXY_ADDRESS_FORWARDING=true.

server {
  server_name api.domain.com;

  location /auth {
    proxy_set_header        Host $host;
    proxy_set_header        X-Real-IP $remote_addr;
    proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header        X-Forwarded-Proto $scheme;

    proxy_pass          http://localhost:8080;
    proxy_read_timeout  90;

 }

  location / {
    proxy_set_header        Host $host;
    proxy_set_header        X-Real-IP $remote_addr;
    proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header        X-Forwarded-Proto $scheme;

    proxy_pass          http://localhost:8081;
    proxy_read_timeout  90;
  }



    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/api.domain.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/api.domain.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}
server {
    if ($host = api.domain.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


  server_name api.domain.com;
    listen 80;
    return 404; # managed by Certbot
}

如果您使用其他代理，则其中重要的部分是正在设置的标头：

proxy_set_header        Host $host;
proxy_set_header        X-Real-IP $remote_addr;
proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header        X-Forwarded-Proto $scheme;

Apache、ISTIO 和其他公司都有自己的设置方法。