[ha] Re-enable nginx proxy for Horizon

Starting with MCP 2019.2, Horizon was moved under haproxy in
Active/Active mode by default via upstream changes:
- Adding haproxy class for horizon [1];
- Cleanup nginx horizon sites by default [2];

This change re-enables the old behavior where Horizon is served by
nginx instead of haproxy.

While at it, fix missing support in salt-formula-apache for wsgi
`locations`, so Horizon dashboard can access '/static' resources
(e.g. CSS/images).

JIRA: FUEL-408

[1] https://github.com/Mirantis/reclass-system-salt-model/commit/81c4c21a
[2] https://github.com/Mirantis/reclass-system-salt-model/commit/a3b38f46

Change-Id: I9b35d5d0ce4e0b53dae808c2620a31ca80290b55
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

4 files changed, 37 insertions, 0 deletions

diff --git a/.gitmodules b/.gitmodules
index 18b5ca532..b47167d9d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -62,3 +62,7 @@
 	path = mcp/salt-formulas/salt-formula-kubernetes
 	url = https://gerrit.mcp.mirantis.com/salt-formulas/kubernetes
 	branch = master
+[submodule "salt-formula-apache"]
+	path = mcp/salt-formulas/salt-formula-apache
+	url = https://gerrit.mcp.mirantis.com/salt-formulas/apache
+	branch = master
diff --git a/mcp/patches/salt-formula-apache/0001-wsgi.conf-Allow-configuration-of-locations.patch b/mcp/patches/salt-formula-apache/0001-wsgi.conf-Allow-configuration-of-locations.patch
new file mode 100644
index 000000000..6304424d3
--- /dev/null
+++ b/mcp/patches/salt-formula-apache/0001-wsgi.conf-Allow-configuration-of-locations.patch
@@ -0,0 +1,32 @@
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+: Copyright (c) 2019 Mirantis Inc., Enea AB and others.
+:
+: All rights reserved. This program and the accompanying materials
+: are made available under the terms of the Apache License, Version 2.0
+: which accompanies this distribution, and is available at
+: http://www.apache.org/licenses/LICENSE-2.0
+::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Wed, 5 Jun 2019 14:23:21 +0200
+Subject: [PATCH] wsgi.conf: Allow configuration of `locations`
+
+wsgi configuration template should also asupport configuring locations
+in order to allow Horizon resources to be accessed from '/static',
+otherwise the system level reclass config for it is silently ignored.
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ apache/files/wsgi.conf | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/apache/files/wsgi.conf b/apache/files/wsgi.conf
+index cad01dc..d375708 100644
+--- a/apache/files/wsgi.conf
++++ b/apache/files/wsgi.conf
+@@ -26,4 +26,6 @@ Listen {{ site.host.address }}:{{ site.host.port }}
+         Allow from all
+     </IfVersion>
+   </Directory>
++
++  {%- include "apache/files/_locations.conf" %}
+ </VirtualHost>
diff --git a/mcp/reclass/classes/cluster/mcp-common-ha/openstack_init.yml.j2 b/mcp/reclass/classes/cluster/mcp-common-ha/openstack_init.yml.j2
index a327919c5..d65e67123 100644
--- a/mcp/reclass/classes/cluster/mcp-common-ha/openstack_init.yml.j2
+++ b/mcp/reclass/classes/cluster/mcp-common-ha/openstack_init.yml.j2
@@ -149,6 +149,7 @@ parameters:
     horizon_identity_host: ${_param:openstack_control_address}
     horizon_identity_encryption: none
     horizon_identity_version: 3
+    nginx_server_site_nginx_proxy_openstack_web_enabled: True
     aodh_service_host: ${_param:openstack_telemetry_address}
     gnocchi_version: 4.3
     gnocchi_service_host: ${_param:openstack_telemetry_address}
diff --git a/mcp/salt-formulas/salt-formula-apache b/mcp/salt-formulas/salt-formula-apache
new file mode 160000
+Subproject 41d31d33354eeff85cd65b78fae0d5af274172b