Keycloak behind a reverse proxy (WAF)

[Nikolas Iliopoulos]

Hi,

We have a Spring Boot application that we want to secure using Keycloak.

When we take a token from
http://{ip}:{port}/realms/{realm-name}/protocol/openid-connect/token
And we try to access the application it works

But when we take a token from
https://{name}/realms/{realm-name}/protocol/openid-connect/token
And we try to access the application we get 401 Unauthorized

In the application.properties we have given the url http://{ip}:{port}

docker-compose for keycloak
```
version: '3.9'

services:

  keycloak:

    image: quay.io/keycloak/keycloak:18.0.0

    container_name: keycloak

    restart: unless-stopped

    ports:

      - 7000:8080

    command:

      - start-dev

    environment:

      KEYCLOAK_ADMIN: admin

      KEYCLOAK_ADMIN_PASSWORD: password

      KC_PROXY: edge
```

[Björn Pedersen]

Check  https://www.keycloak.org/server/reverseproxy, probably you need to configure the proxy to correctly set some headers.