Disable tunneled mode when use_tls_for_live_migration

With recent version of libvirt, nova-compute don't come up
correct when tls-everywhere (use_tls_for_live_migration)
is set. The enable_live_migration_tunnelled condition
did not consider tls-livemigration and got disabled.
Nova-compute fails to start with:

2021-05-12 12:49:09.278 7 ERROR oslo_service.service nova.exception.Invalid: Setting both 'live_migration_tunnelled' and 'live_migration_with_native_tls' at the same time is invalid. If you have the relevant libvirt and QEMU versions, and TLS configured in your environment, pick 'live_migration_with_native_tls'._

This change enhance the enable_live_migration_tunnelled
condition to not configure tunnelled mode when
use_tls_for_live_migration is true.

Closes-Bug: #1928554
Related-bug: https://bugzilla.redhat.com/show_bug.cgi?id=1959808

Change-Id: I1a6f5d3a98d185415b772fa6a94d6f4329dc59a0
(cherry picked from commit 3a472cbbe8)
(cherry picked from commit 4b1da5cd5b)
(cherry picked from commit 86de3c3501)
(cherry picked from commit 0e8be55089)

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

@@ -493,6 +493,15 @@ parameters:
     default: 0
     tags:
       - role_specific
+  EnableInternalTLS:
+    type: boolean
+    default: false
+  UseTLSTransportForLiveMigration:
+    type: boolean
+    default: true
+    description: If set to true and if EnableInternalTLS is enabled, it will
+                 set the libvirt URI's transport to tls and configure the
+                 relevant keys for libvirt.
 
   # DEPRECATED: the following options are deprecated and are currently maintained
   # for backwards compatibility. They will be removed in future release.
@@ -687,16 +696,23 @@ conditions:
   insecure_registry_is_empty: {equals : [{get_param: DockerInsecureRegistryAddress}, []]}
   enable_instance_ha: {equals: [{get_param: EnableInstanceHA}, true]}
 
+  use_tls_for_live_migration:
+    and:
+      - {get_param: EnableInternalTLS}
+      - {get_param: UseTLSTransportForLiveMigration}
+
   enable_live_migration_tunnelled:
-    or:
-      - and:
-        - equals: [{get_param: NovaNfsEnabled}, true]
-        - equals: [{get_param: [RoleParameters, NovaNfsEnabled]}, '']
-      - equals: [{get_param: [RoleParameters, NovaNfsEnabled]}, true]
-      - equals: [{get_param: [RoleParameters, NovaEnableRbdBackend]}, true]
-      - and:
-        - equals: [{get_param: [RoleParameters, NovaEnableRbdBackend]}, '']
-        - equals: [{get_param: NovaEnableRbdBackend}, true]
+    and:
+      - or:
+          - and:
+            - {get_param: NovaNfsEnabled}
+            - equals: [{get_param: [RoleParameters, NovaNfsEnabled]}, '']
+          - equals: [{get_param: [RoleParameters, NovaNfsEnabled]}, true]
+          - equals: [{get_param: [RoleParameters, NovaEnableRbdBackend]}, true]
+          - and:
+            - equals: [{get_param: [RoleParameters, NovaEnableRbdBackend]}, '']
+            - {get_param: NovaEnableRbdBackend}
+      - not: use_tls_for_live_migration
 
   libvirt_file_backed_memory_enabled:
     not:

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

@@ -279,12 +279,8 @@ conditions:
 
   use_tls_for_live_migration:
     and:
-    - equals:
       - {get_param: EnableInternalTLS}
-      - true
-    - equals:
       - {get_param: UseTLSTransportForLiveMigration}
-      - true
 
   libvirt_specific_ca_unset:
     equals: