Add support for Ceph as a Cinder and Nova backend

This commit aims to add support for Ceph as a cinder and a nova backend.

  * Allows creation of Ceph pools from heat (Default: volumes, vms)
  * Creates the proper ceph user and inject the keys
  * Applies the proper configuration in cinder.conf and nova.conf
  * Enable the backend out of the box

Co-Authored-By: Giulio Fidente <gfidente@redhat.com>

Change-Id: Ic17d7a665de81a8bab5e34035abe90eda4bc889f

2 files changed, 54 insertions, 3 deletions

diff --git a/puppet/manifests/overcloud_compute.pp b/puppet/manifests/overcloud_compute.pp
index 0d2790b2..0c870c35 100644
--- a/puppet/manifests/overcloud_compute.pp
+++ b/puppet/manifests/overcloud_compute.pp
@@ -45,6 +45,18 @@ nova_config {
   'DEFAULT/linuxnet_interface_driver': value => 'nova.network.linux_net.LinuxOVSInterfaceDriver';
 }
 
+$nova_enable_rbd_backend = hiera('nova_enable_rbd_backend', false)
+if $nova_enable_rbd_backend {
+  include ::ceph::profile::client
+  include ::nova::compute::rbd
+  ceph::key { 'client.openstack' :
+    secret  => hiera('ceph::profile::params::mon_key'),
+    cap_mon => hiera('ceph_openstack_default_cap_mon'),
+    cap_osd => hiera('ceph_openstack_default_cap_osd'),
+    user    => 'nova',
+  }
+}
+
 include ::nova::compute::libvirt
 
 class { 'nova::network::neutron':
diff --git a/puppet/manifests/overcloud_controller.pp b/puppet/manifests/overcloud_controller.pp
index 87cc7ec0..41363039 100644
--- a/puppet/manifests/overcloud_controller.pp
+++ b/puppet/manifests/overcloud_controller.pp
@@ -156,14 +156,26 @@ if hiera('step') >= 2 {
   # pre-install swift here so we can build rings
   include ::swift
 
-  # don't install Ceph if FSID is not provided
-  if hiera('ceph::profile::params::fsid', false) {
+  $cinder_enable_rbd_backend = hiera('cinder_enable_rbd_backend', false)
+  $enable_ceph = $cinder_enable_rbd_backend
+
+  if $enable_ceph {
     class { 'ceph::profile::params':
       mon_initial_members => downcase(hiera('ceph_mon_initial_members'))
     }
     include ::ceph::profile::mon
   }
 
+  if $cinder_enable_rbd_backend {
+    ceph::key { 'client.openstack' :
+      secret  => hiera('ceph::profile::params::mon_key'),
+      cap_mon => hiera('ceph_openstack_default_cap_mon'),
+      cap_osd => hiera('ceph_openstack_default_cap_osd'),
+      user    => 'cinder',
+      inject  => 'true',
+    }
+  }
+
 } #END STEP 2
 
 if hiera('step') >= 3 {
@@ -278,7 +290,34 @@ if hiera('step') >= 3 {
     }
   }
 
-  $cinder_enabled_backends = any2array($cinder_iscsi_backend)
+  if $enable_ceph {
+
+    Ceph_pool {
+      pg_num  => hiera('ceph::profile::params::osd_pool_default_pg_num'),
+      pgp_num => hiera('ceph::profile::params::osd_pool_default_pgp_num'),
+      size    => hiera('ceph::profile::params::osd_pool_default_size'),
+    }
+
+    $ceph_pools = hiera('ceph_pools')
+    ceph::pool { $ceph_pools : }
+  }
+
+  if $cinder_enable_rbd_backend {
+    $cinder_rbd_backend = 'tripleo_ceph'
+
+    cinder_config {
+      "${cinder_rbd_backend}/host": value => 'hostgroup';
+    }
+
+    cinder::backend::rbd { $cinder_rbd_backend :
+      rbd_pool        => 'volumes',
+      rbd_user        => 'openstack',
+      rbd_secret_uuid => hiera('ceph::profile::params::fsid'),
+      require         => Ceph::Pool['volumes'],
+    }
+  }
+
+  $cinder_enabled_backends = concat(any2array($cinder_iscsi_backend), $cinder_rbd_backend)
   class { '::cinder::backends' :
     enabled_backends => $cinder_enabled_backends,
   }