[keycloak-user] Wrapping Keycloak under Nginx - redirect_uri problems
Doug Szeto
DSzeto at investlab.com
Tue Sep 29 22:12:36 EDT 2015
Thanks for the config but had to make a few more changes for my setup.
First problem was that the if there is a url instead of an IP as the keycloak server, it seemed to cause problems.
Solution:
Had to replace the nginx config setting:
proxy_set_header Host $host;
With
proxy_set_header Host [auth-server-url in the keycloak.json file];
Second problem is that the keycloak/wildfly server kept using the nginx proxy’s IP in the session management.
Solution:
Need a combination of nginx settings and wildfly settings.
Nginx needs to insert the forwarded for headers
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
Wildfly’s standalone/configuration/standalone.xml needs to read the forwarded for header with proxy-address-forwarding=“true"
…
<subsystem xmlns="urn:jboss:domain:undertow:2.0">
<buffer-cache name="default"/>
<server name="default-server">
<http-listener name="default" socket-binding="http" redirect-socket="https" proxy-address-forwarding="true" />
…
The second solution is sort of mentioned in the docs, but applicable to both http and https and the xml seems out of date.
—Doug
From: Scott Rossillo <srossillo at smartling.com<mailto:srossillo at smartling.com>>
Date: Thu, 24 Sep 2015 12:25:06 -0400
To: Kevin Thorpe <kevin.thorpe at p-i.net<mailto:kevin.thorpe at p-i.net>>
Cc: doug <dszeto at investlab.com<mailto:dszeto at investlab.com>>, keycloak-user <keycloak-user at lists.jboss.org<mailto:keycloak-user at lists.jboss.org>>
Subject: Re: [keycloak-user] Wrapping Keycloak under Nginx - redirect_uri problems
Here’s a working configuration with NGINX listening on 443 (https) and Keycloak / Wildfly on 8080 (http). Note the proxy_set_header calls. The rest of the config is just for completeness:
upstream keycloak {
server localhost:8080;
}
server {
listen 443;
server_name localhost;
ssl on;
ssl_certificate /etc/pki/tls/certs/server.crt;
ssl_certificate_key /etc/pki/tls/certs/server.key;
ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ALL:!ADH!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_prefer_server_ciphers on;
location / {
proxy_pass http://keycloak;
proxy_http_version 1.1;
proxy_set_header Connection "";
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 https;
}
}
Scott Rossillo
Smartling | Senior Software Engineer
srossillo at smartling.com<mailto:srossillo at smartling.com>
[Powered by Sigstr]<http://www.sigstr.com/>
On Sep 24, 2015, at 5:13 AM, Kevin Thorpe <kevin.thorpe at p-i.net<mailto:kevin.thorpe at p-i.net>> wrote:
I got it working but as you've seen only if everyone contacts the Nginx IP. If the back end
servers contact Keycloak directly then the validation fails because the token was issued
by 'a different server'.
I want to do the same thing as well. I want the front-end of our application to authenticate
against the public address then all the back end servers running in Docker contact the
Keycloak docker container directly. The way I have it now I'm generating a lot of traffic
between the Docker (actually Rancher) LAN and the external LAN.
I think we need a concept of service aliases so that a token issued by
https:my-public-name:443 would still be accepted by http://keycloak:8080<http://keycloak:8080/> (as long as it
was indeed issued by that server under a different alias)
Kevin Thorpe
CTO
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On 24 September 2015 at 02:38, Doug Szeto <DSzeto at investlab.com<mailto:DSzeto at investlab.com>> wrote:
Did you ever get the correct settings?
When I put nginx in front of keycloak, it generates access tokens tied to the nginx server's IP instead of the browser's IP. This is apparent in the admin management pages when you look up the active sessions.
The problem I'm having is there is a resource server that accepts bearer only tokens. It uses a different server, and now fails the token validation check. Remove the nginx servers and things work fine.
Any suggestions?
--Doug
________________________________
From: keycloak-user-bounces at lists.jboss.org<mailto:keycloak-user-bounces at lists.jboss.org> <keycloak-user-bounces at lists.jboss.org<mailto:keycloak-user-bounces at lists.jboss.org>> on behalf of Kevin Thorpe <kevin.thorpe at p-i.net<mailto:kevin.thorpe at p-i.net>>
Sent: Friday, September 18, 2015 19:21
To: stian at redhat.com<mailto:stian at redhat.com>
Cc: keycloak-user
Subject: Re: [keycloak-user] Wrapping Keycloak under Nginx - redirect_uri problems
oh I see. I was copying the style of config from the developer who set up the test
Keycloak (assuming wrongly that he knew what he was doing). Setting it to the
actual site worked........ but now I have another problem :-(
Kevin Thorpe
CTO
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On 18 September 2015 at 11:59, Stian Thorgersen <sthorger at redhat.com<mailto:sthorger at redhat.com>> wrote:
The * can only be on the end of the valid redirect uri. So you need to specify 'https://my-client.pibenchmark.com/*' or simply '*'. The latter not being a good idea obviously.
On 18 September 2015 at 12:42, Kevin Thorpe <kevin.thorpe at p-i.net<mailto:kevin.thorpe at p-i.net>> wrote:
Hi, I'm trying to wrap Keycloak behind Nginx for a client and I can't work out how to
avoid the invalid parameter: redirect_uri problem.
Website is https://my-client.pibenchmark.com<https://my-client.pibenchmark.com/>
In nginx:
location /auth {
proxy_pass https://auth-service<https://auth-service/>;
}
upstream auth-service {
server my-keycloak:8443;
}
Then in Keycloak I have valid redirect URIs set to https://*.pibenchmark.com/*<http://pibenchmark.com/*> ie my whole domain. Still getting invalid parameter: redirect_uri though.
What am I doing wrong? Can I do this this way? I like to have one point of contact with the internet for security reasons.
Kevin Thorpe
CTO, PI Limited
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