git: Convert to CentOS 8 and Apache

* Update git hosts to CentOS 8
 * Drop nslscd and use sssd instead
 * Change nginx to apache for future GSSAPI support
 * Fix SELinux contexts from git data directory

roles/git/server/tasks/main.yml

@@ -9,6 +9,11 @@
     - highlight
     - perl-Digest-MD5
 
+- name: fix selinux context from data directory
+  sefcontext:
+    path: /export/git(/.*)?
+    setype: git_sys_content_t
+
 - name: create git directory
   file:
     path: /srv/git
@@ -44,11 +49,11 @@
     - logo.png
     - gitweb-local.css
 
-- name: create nginx git config
+- name: link apache git config
   copy:
-    dest: /etc/nginx/conf.d/{{ inventory_hostname }}/git.conf
+    dest: /etc/httpd/conf.local.d/git.conf
     src: git.conf
     mode: 0644
     owner: root
-    group: root
-  notify: restart nginx
+    group: "{{ ansible_wheel }}"
+  notify: restart apache