Adds LibvirtLogFilters to define a libvirtd filter

LibvirtLogFilters to select a different logging level for a given
category log outputs, as specified in https://libvirt.org/logging.html .
Default:

'1:libvirt 1:qemu 1:conf 1:security 3:event 3:json 3:file 3:object 1:util'

Depends-On: Ic48afe856ae60654d6cebf627b12509881933c59
Change-Id: I85b09ddeb61b2f3563f81eb423e8f05b18fe984a
Closes-Bug: 1840140

deployment/nova/nova-libvirt-container-puppet.yaml

@@ -212,6 +212,12 @@ parameters:
     type: boolean
     tags:
       - role_specific
+  LibvirtLogFilters:
+    description: Defines a filter to select a different logging level
+                 for a given category log outputs, as specified in
+                 https://libvirt.org/logging.html .
+    type: string
+    default: '1:libvirt 1:qemu 1:conf 1:security 3:event 3:json 3:file 3:object 1:util'
 
 conditions:
 
@@ -383,6 +389,7 @@ outputs:
                  params:
                    $NETWORK: {get_param: [ServiceNetMap, NovaLibvirtNetwork]}
             nova::compute::libvirt::log_outputs: "3:syslog:libvirtd"
+            nova::compute::libvirt::log_filters: {get_param: LibvirtLogFilters}
             rbd_persistent_storage: {get_param: CinderEnableRbdBackend}
             tripleo::nova_libvirt::firewall_rules:
               '200 nova_libvirt':

releasenotes/notes/nova_libvirtd_log_filters-63e9e6501d779dd9.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    Adds LibvirtLogFilters parameter to define a filter to select
+    a different logging level for a given category log outputs, as
+    specified in https://libvirt.org/logging.html .
+    Default:
+    '1:libvirt 1:qemu 1:conf 1:security 3:event 3:json 3:file 3:object 1:util'