Allow using ephemeral volumes for docker storage (#615)

For testing cases it's sometimes useful to not create Cinder volumes for
the VMs. It can also sometimes be a little faster and more robust (but
unfit for production).

This adds an option called `ephemeral_volumes` that will use the VM's
storage instead of creating volumes when set to true.

2 files changed, 4 insertions, 0 deletions

diff --git a/roles/openstack-stack/templates/heat_stack_server.yaml.j2 b/roles/openstack-stack/templates/heat_stack_server.yaml.j2
index 5851d3b9b..85af311ec 100644
--- a/roles/openstack-stack/templates/heat_stack_server.yaml.j2
+++ b/roles/openstack-stack/templates/heat_stack_server.yaml.j2
@@ -156,6 +156,7 @@ resources:
       floating_network: { get_param: floating_network }
       port_id: { get_resource: port }
 
+{% if not ephemeral_volumes|default(false)|bool %}
   cinder_volume:
     type: OS::Cinder::Volume
     properties:
@@ -168,3 +169,4 @@ resources:
       volume_id: { get_resource: cinder_volume }
       instance_uuid: { get_resource: server }
       mountpoint: /dev/sdb
+{% endif %}
diff --git a/roles/openstack-stack/templates/heat_stack_server_nofloating.yaml.j2 b/roles/openstack-stack/templates/heat_stack_server_nofloating.yaml.j2
index 792a8b90c..a22b7c6d0 100644
--- a/roles/openstack-stack/templates/heat_stack_server_nofloating.yaml.j2
+++ b/roles/openstack-stack/templates/heat_stack_server_nofloating.yaml.j2
@@ -135,6 +135,7 @@ resources:
         - subnet: { get_param: subnet }
       security_groups: { get_param: secgrp }
 
+{% if not ephemeral_volumes|default(false)|bool %}
   cinder_volume:
     type: OS::Cinder::Volume
     properties:
@@ -147,3 +148,4 @@ resources:
       volume_id: { get_resource: cinder_volume }
       instance_uuid: { get_resource: server_nofloating }
       mountpoint: /dev/sdb
+{% endif %}