GitLab Pages in separate server

I am trying to setup GitLab and GitLab Pages in two different servers. However I do not find any information on how to do this (help me with the steps).

I have installed Gitlab itself in machine A. Installed Go and trying to run the below command in machine B.

./gitlab-pages -listen-https "" -listen-http ":8090" SSL_CERT_FILE=/etc/ssl/certs/app_name-wildcard.pem -pages-root /home/dheerajk1451/gitlab-pages/shared/pages pages-domain gitlab-client.gitlab-pages.com

But I am getting below error.

INFO[0000] GitLab Pages Daemon revision=5647aede version=dev INFO[0000] URL: https://gitlab.com/gitlab-org/gitlab-pages FATA[0000] error="tls: failed to find any PEM data in certificate input"

Appreciate if anyone can help me in this.