Puppet / Compute: allow to run Ephemeral only storage with RBD

This patch allows the case where we're not running Ceph to host Persistent
storage (volumes) but just to host Ephemeral storage (VMs).

Before we were only allowing Ephemeral storage on Ceph when also
Persistent storage was using Ceph.

Change-Id: I03b775326e4424de413452f4453d4d88de0083bc

4 files changed, 18 insertions, 6 deletions

diff --git a/os-apply-config/compute.yaml b/os-apply-config/compute.yaml
index 88d4cb2b..ab8f8469 100644
--- a/os-apply-config/compute.yaml
+++ b/os-apply-config/compute.yaml
@@ -29,6 +29,10 @@ parameters:
     default: false
     description: Whether to enable or not the NFS backend for Cinder
     type: boolean
+  CinderEnableRbdBackend:
+    default: false
+    description: Whether to enable or not the Rbd backend for Cinder
+    type: boolean
   Debug:
     default: ''
     description: Set to True to enable debugging on all services.
diff --git a/overcloud-without-mergepy.yaml b/overcloud-without-mergepy.yaml
index 654c2427..cb478436 100644
--- a/overcloud-without-mergepy.yaml
+++ b/overcloud-without-mergepy.yaml
@@ -58,6 +58,10 @@ parameters:
     default: true
     description: Whether to enable or not the Iscsi backend for Cinder
     type: boolean
+  CinderEnableRbdBackend:
+    default: false
+    description: Whether to enable or not the Rbd backend for Cinder
+    type: boolean
   CloudName:
     default: ''
     description: The DNS name of this cloud. E.g. ci-overcloud.tripleo.org
@@ -269,10 +273,6 @@ parameters:
     description: The keystone auth secret.
     type: string
     hidden: true
-  CinderEnableRbdBackend:
-    default: false
-    description: Whether to enable or not the Rbd backend for Cinder
-    type: boolean
   CinderLVMLoopDeviceSize:
     default: 5000
     description: The size of the loopback file used by the cinder LVM driver.
@@ -876,6 +876,7 @@ resources:
           CeilometerMeteringSecret: {get_param: CeilometerMeteringSecret}
           CeilometerPassword: {get_param: CeilometerPassword}
           CinderEnableNfsBackend: {get_param: CinderEnableNfsBackend}
+          CinderEnableRbdBackend: {get_param: CinderEnableRbdBackend}
           Debug: {get_param: Debug}
           ExtraConfig: {get_param: ExtraConfig}
           Flavor: {get_param: OvercloudComputeFlavor}
diff --git a/puppet/compute.yaml b/puppet/compute.yaml
index bdee93dd..32cb0e28 100644
--- a/puppet/compute.yaml
+++ b/puppet/compute.yaml
@@ -29,6 +29,10 @@ parameters:
     default: false
     description: Whether to enable or not the NFS backend for Cinder
     type: boolean
+  CinderEnableRbdBackend:
+    default: false
+    description: Whether to enable or not the Rbd backend for Cinder
+    type: boolean
   Debug:
     default: ''
     description: Set to True to enable debugging on all services.
@@ -384,6 +388,7 @@ resources:
                 nova_api_host: {get_input: nova_api_host}
                 nova::compute::vncproxy_host: {get_input: nova_public_ip}
                 nova::compute::rbd::ephemeral_storage: {get_input: nova_enable_rbd_backend}
+                rbd_persistent_storage: {get_input: cinder_enable_rbd_backend}
                 nova_password: {get_input: nova_password}
                 nova::compute::vncserver_proxyclient_address: {get_input: nova_vnc_proxyclient_address}
                 ceilometer::debug: {get_input: debug}
@@ -447,6 +452,7 @@ resources:
         nova_api_host: {get_param: NovaApiHost}
         nova_password: {get_param: NovaPassword}
         nova_enable_rbd_backend: {get_param: NovaEnableRbdBackend}
+        cinder_enable_rbd_backend: {get_param: CinderEnableRbdBackend}
         nova_vnc_proxyclient_address: {get_attr: [NetIpMap, net_ip_map, {get_param: [ServiceNetMap, NovaVncProxyNetwork]}]}
         ceilometer_metering_secret: {get_param: CeilometerMeteringSecret}
         ceilometer_password: {get_param: CeilometerPassword}
diff --git a/puppet/manifests/overcloud_compute.pp b/puppet/manifests/overcloud_compute.pp
index a0ef701a..2150bab8 100644
--- a/puppet/manifests/overcloud_compute.pp
+++ b/puppet/manifests/overcloud_compute.pp
@@ -43,8 +43,9 @@ nova_config {
   'DEFAULT/linuxnet_interface_driver': value => 'nova.network.linux_net.LinuxOVSInterfaceDriver';
 }
 
-$nova_enable_rbd_backend = hiera('nova::compute::rbd::ephemeral_storage', false)
-if $nova_enable_rbd_backend {
+$rbd_ephemeral_storage = hiera('nova::compute::rbd::ephemeral_storage', false)
+$rbd_persistent_storage = hiera('rbd_persistent_storage', false)
+if $rbd_ephemeral_storage or $rbd_persistent_storage {
   include ::ceph::profile::client
 
   $client_keys = hiera('ceph::profile::params::client_keys')