Nginx Conf as Reverse Proxy for Keycloak

docker-compose.yml

...
  forwarder:
    image: myngproxy:latest #coming from the local build docker image
    ports:
      - 9600:9600
    links:
      - keycloak:keycloak
    networks:
      - mystack-app-net
...

networks:
  mystack-app-net:
    driver: bridge
    external: true

Dockerfile

FROM nginx:latest

# Remove the default nginx configuration file
RUN rm /etc/nginx/conf.d/default.conf

# Copy a new configuration file from the current directory
COPY nginx.conf /etc/nginx/conf.d/

# Expose ports
EXPOSE 9600

# Start NGINX using the default command
CMD ["nginx", "-g", "daemon off;"]

# Build ngproxy before running dockerifle
# docker build -t myngproxy:latest .

nginx.conf

server {
  listen 9600;
  
  access_log /var/log/nginx/access.log;
  error_log /var/log/nginx/error.log;
  
  location / {
    proxy_pass          http://keycloak:9001/;
    proxy_set_header    Host               $host:$server_port;
    proxy_set_header    X-Real-IP          $remote_addr;
    proxy_set_header    X-Forwarded-For    $proxy_add_x_forwarded_for;
    proxy_set_header    X-Forwarded-Host   $host;
    proxy_set_header    X-Forwarded-Server $host;
    proxy_set_header    X-Forwarded-Port   $server_port;
    proxy_set_header    X-Forwarded-Proto  $scheme;
  }
  
}