commit f2fc8c8fafd1c29c8ddfa0c78b875cb9f48291a7
Author: Martin Magr <mmagr@redhat.com>
Date:   Thu Oct 1 15:31:05 2020 +0200

    Add possibility to set logging source for Horizon
    
    This patch adds HorizonLoggingSource parameter to enable fluentd to tail logs
    from Horizon.
    
    To keep consistency with other services the default value is set as single log located
    in appropriate log directory, but we also need to enable customer to pass multiple
    horizon log files also used by httpd.
    
    Change-Id: I0161e6d9c76424b301e48b73f1d7b4b071af0676

diff --git a/deployment/horizon/horizon-container-puppet.yaml b/deployment/horizon/horizon-container-puppet.yaml
index 92e5ba4..ca6aae8 100644
--- a/deployment/horizon/horizon-container-puppet.yaml
+++ b/deployment/horizon/horizon-container-puppet.yaml
@@ -137,6 +137,11 @@ parameters:
                  of hashes, and the hashes should have two items each (name, display)
                  containing Keystone domain name and a human-readable description of
                  the domain respectively.
+  HorizonLoggingSource:
+    type: json
+    default:
+      tag: openstack.horizon
+      file: /var/log/containers/horizon/horizon.log
 
 parameter_groups:
 - label: deprecated
@@ -251,6 +256,14 @@ outputs:
           - {}
       ansible_group_vars:
         keystone_enable_member: true
+      service_config_settings:
+        rsyslog:
+          tripleo_logging_sources_horizon:
+            yaql:
+              expression: $.data.sources.flatten()
+              data:
+                sources:
+                  - {get_param: HorizonLoggingSource}
       # BEGIN DOCKER SETTINGS
       puppet_config:
         config_volume: horizon