update Apache configuration for OOD rewrite rules and setup HTTP proxy playbook

• Update Apache configuration for OOD rewrite rules during deploy phase We lookup the value of the placeholder (RewriteCond %{HTTP:REMOTE_USER} \’^(.+)$\’) in this case in the apache conf during build and replace it with the rewrite conditions during deploy phase.

• Added HTTP proxy playbook

ansible/roles/apache_placeholder_replace/tasks/main.yml

+---
+
+- name: Replace OOD rewrite placeholder in Apache configuration
+  ansible.builtin.replace:
+    path: /etc/httpd/conf.d/front-end.conf
+    regexp: 'RewriteCond %{HTTP:REMOTE_USER} \'^(.+)$\''
+    replace: |
+      RewriteCond %{HTTP:REMOTE_USER} '([a-zA-Z0-9_.+-]+)@uab.edu$' [OR]
+      RewriteCond %{HTTP:REMOTE_USER} 'urn:mace:incommon:uab.edu!https://uabgrid.uab.edu/shibboleth!(.+)$'
+