Compile mod-wsgi module for CentOS 7

CentOS 7 do not have Apache mod-wsgi package for py3, so we're building it.

Change-Id: I02f7b3c91468c5d7ed44d950afa2cc6164d2650f

tasks/horizon_install_source.yml

@@ -45,7 +45,9 @@
     venv_install_destination_path: "{{ horizon_bin | dirname }}"
     venv_pip_install_args: "{{ horizon_pip_install_args }}"
     venv_pip_packages: >-
-      {{ horizon_pip_packages | union(horizon_user_pip_packages) + horizon_optional_pip_packages +
+      {{ horizon_pip_packages | union(horizon_user_pip_packages) +
+         horizon_optional_pip_packages +
+         horizon_service_pip_packages | default([]) +
          (horizon_enable_blazar_ui | bool) | ternary(horizon_blazar_optional_pip_packages, []) +
          (horizon_enable_cloudkitty_ui | bool) | ternary(horizon_cloudkitty_optional_pip_packages, []) +
          (horizon_enable_designate_ui | bool) | ternary(horizon_designate_optional_pip_packages, []) +
@@ -161,3 +163,9 @@
   notify:
     - Compile messages
     - Restart apache2
+
+- name: Register wsgi module
+  shell: "{{ horizon_bin }}/mod_wsgi-express install-module > /etc/httpd/conf.modules.d/02-wsgi.conf"
+  when: ansible_os_family | lower == 'redhat' and ansible_distribution_major_version is version('7', '=')
+  notify:
+    - Restart apache2

vars/redhat-7.yml

@@ -20,6 +20,7 @@ horizon_devel_distro_packages:
   - libxslt-devel
   - openssl
   - openssl-libs
+  - httpd-devel
   - pcre-devel
 
 horizon_distro_packages:
@@ -29,9 +30,11 @@ horizon_distro_packages:
   - httpd
   - httpd-tools
   - mod_ssl
-  - mod_wsgi
   - which
 
+horizon_service_pip_packages:
+  - mod-wsgi
+
 horizon_service_distro_packages:
   - openstack-designate-ui
   - openstack-heat-ui