From 983920efbae375322f520cd6b3b8b4062b1f83eb Mon Sep 17 00:00:00 2001
From: rajinir <rajini.karthik@dell.com>
Date: Thu, 18 Oct 2018 10:36:01 -0500
Subject: [PATCH] Support for libvirt volume multipath

Adds support for libvirt volume_use_multipath the ability to
use multipath connection of the iSCSI or FC volume.
Volumes can be connected in the LibVirt as multipath devices.
Adds new parameter NovaLibvirtVolumeUseMultipath.

Change-Id: I18a030a445de652fbc492029afec6558a9661857
---
 puppet/services/nova-compute.yaml                         | 8 ++++++++
 ...olume_use_multipath-for-libvirt--c8e93a0bb83e0bc8.yaml | 7 +++++++
 2 files changed, 15 insertions(+)
 create mode 100644 releasenotes/notes/volume_use_multipath-for-libvirt--c8e93a0bb83e0bc8.yaml

diff --git a/puppet/services/nova-compute.yaml b/puppet/services/nova-compute.yaml
index 5f1abe02c6..b2cecec7bc 100644
--- a/puppet/services/nova-compute.yaml
+++ b/puppet/services/nova-compute.yaml
@@ -196,6 +196,12 @@ parameters:
     type: number
     tags:
       - role_specific
+  NovaLibvirtVolumeUseMultipath:
+    default: false
+    description: Whether to enable or not the multipath connection of the volumes.
+    type: boolean
+    tags:
+      - role_specific
 
 conditions:
   enable_live_migration_tunnelled:
@@ -238,6 +244,7 @@ resources:
               nova::compute::libvirt::rx_queue_size: NovaLibvirtRxQueueSize
               nova::compute::libvirt::tx_queue_size: NovaLibvirtTxQueueSize
               nova::compute::libvirt::file_backed_memory: NovaLibvirtFileBackedMemory
+              nova::compute::libvirt::volume_use_multipath: NovaLibvirtVolumeUseMultipath
             - values: {get_param: [RoleParameters]}
           - values:
               NovaVcpuPinSet: {get_param: NovaVcpuPinSet}
@@ -249,6 +256,7 @@ resources:
               NovaLibvirtRxQueueSize: {get_param: NovaLibvirtRxQueueSize}
               NovaLibvirtTxQueueSize: {get_param: NovaLibvirtTxQueueSize}
               NovaLibvirtFileBackedMemory: {get_param: NovaLibvirtFileBackedMemory}
+              NovaLibvirtVolumeUseMultipath: {get_param: NovaLibvirtVolumeUseMultipath}
 
 outputs:
   role_data:
diff --git a/releasenotes/notes/volume_use_multipath-for-libvirt--c8e93a0bb83e0bc8.yaml b/releasenotes/notes/volume_use_multipath-for-libvirt--c8e93a0bb83e0bc8.yaml
new file mode 100644
index 0000000000..dc5341349f
--- /dev/null
+++ b/releasenotes/notes/volume_use_multipath-for-libvirt--c8e93a0bb83e0bc8.yaml
@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Add support for libvirt volume_use_multipath the ability to
+    use multipath connection of the iSCSI or FC volume.
+    Volumes can be connected in the LibVirt as multipath devices.
+    Adds new parameter "NovaLibvirtVolumeUseMultipath".