Add rsync package to the nova-ssh container

This change fixes the issue with absent rsync package when
'remote_filesystem_transport = rsync' is enabled in nova_compute.

Closes-Bug: #2113926
Change-Id: Ie6719928e4ec2901d661f44c9f259add35afa269
Signed-off-by: Maksim Malchuk <[email protected]>
(cherry picked from commit bc018d3)

Author: mmalchuk

docker/nova/nova-ssh/Dockerfile.j2

@@ -10,7 +10,8 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
 {{ macros.configure_user(name='nova', shell='/bin/bash') }}
 
 {% set nova_ssh_packages = [
-    'openssh-server'
+    'openssh-server',
+    'rsync'
 ] %}
 
 {% if base_package_type == 'deb' %}