openstack/puppet-tripleo
Code Issues Proposed changes

Add support for multiple Cinder RBD backends

Browse Source 
Add a parameter that allows the user to optionally specify a list of
extra Ceph pools to be used as additional RBD backends for Cinder. A
separate RBD backend is created for each pool in the list.

Implements: blueprint multiple-cinder-rbd-backend
Change-Id: I3318b9eaef607d6992f9a8cb605817b6f76dd331
This commit is contained in:
Alan Bishop 2017-09-22 11:45:02 -04:00
parent 9939df4c17
commit f08484480f
6 changed files with 64 additions and 2 deletions
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14
manifests/profile/base/cinder/volume.pp
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@ -163,8 +163,17 @@ class tripleo::profile::base::cinder::volume (
if $cinder_enable_rbd_backend {
include ::tripleo::profile::base::cinder::volume::rbd
$cinder_rbd_backend_name = hiera('cinder::backend::rbd::volume_backend_name', 'tripleo_ceph')
$cinder_rbd_extra_pools = hiera('tripleo::profile::base::cinder::volume::rbd::cinder_rbd_extra_pools', undef)
if $cinder_rbd_extra_pools {
$base_name = $cinder_rbd_backend_name
$cinder_rbd_extra_backend_names = $cinder_rbd_extra_pools.map |$pool_name| { "${base_name}_${pool_name}" }
} else {
$cinder_rbd_extra_backend_names = undef
}
} else {
$cinder_rbd_backend_name = undef
$cinder_rbd_extra_backend_names = undef
}
if $cinder_enable_scaleio_backend {
@ -181,8 +190,9 @@ class tripleo::profile::base::cinder::volume (
$cinder_veritas_hyperscale_backend_name = undef
}
$backends = delete_undef_values([$cinder_iscsi_backend_name,
$backends = delete_undef_values(concat([], $cinder_iscsi_backend_name,
$cinder_rbd_backend_name,
$cinder_rbd_extra_backend_names,
$cinder_pure_backend_name,
$cinder_dellps_backend_name,
$cinder_dellsc_backend_name,
@ -193,7 +203,7 @@ class tripleo::profile::base::cinder::volume (
$cinder_nfs_backend_name,
$cinder_scaleio_backend_name,
$cinder_veritas_hyperscale_backend_name,
$cinder_user_enabled_backends])
$cinder_user_enabled_backends))
# NOTE(aschultz): during testing it was found that puppet 3 may incorrectly
# include a "" in the previous array which is not removed by the
# delete_undef_values function. So we need to make sure we don't have any

17
manifests/profile/base/cinder/volume/rbd.pp
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@ -30,6 +30,11 @@
# (Optional) The name of the RBD pool to use
# Defaults to 'volumes'
#
# [*cinder_rbd_extra_pools*]
# (Optional) List of additional pools to use for Cinder. A separate RBD
# backend is created for each additional pool.
# Defaults to undef
#
# [*cinder_rbd_secret_uuid*]
# (Optional) UUID of the of the libvirt secret storing the Cephx key
# Defaults to 'ceph::profile::params::fsid'
@ -47,6 +52,7 @@ class tripleo::profile::base::cinder::volume::rbd (
$backend_name = hiera('cinder::backend::rbd::volume_backend_name', 'tripleo_ceph'),
$cinder_rbd_backend_host = hiera('cinder::host', 'hostgroup'),
$cinder_rbd_pool_name = 'volumes',
$cinder_rbd_extra_pools = undef,
$cinder_rbd_secret_uuid = hiera('ceph::profile::params::fsid', undef),
$cinder_rbd_user_name = 'openstack',
$step = Integer(hiera('step')),
@ -60,6 +66,17 @@ class tripleo::profile::base::cinder::volume::rbd (
rbd_user => $cinder_rbd_user_name,
rbd_secret_uuid => $cinder_rbd_secret_uuid,
}
if $cinder_rbd_extra_pools {
$cinder_rbd_extra_pools.each |$pool_name| {
cinder::backend::rbd { "${backend_name}_${pool_name}" :
backend_host => $cinder_rbd_backend_host,
rbd_pool => $pool_name,
rbd_user => $cinder_rbd_user_name,
rbd_secret_uuid => $cinder_rbd_secret_uuid,
}
}
}
}
}

7
releasenotes/notes/multiple-cinder-rbd-backend-ef2767baf771b741.yaml Normal file
View File

@ -0,0 +1,7 @@
---
features:
- |
Add support for specifying a list of Ceph pools to be used for additional
Cinder RBD backends. This is in addition to the Ceph pool associated with
the first Cinder RBD backend. The list of extra pools is optional, and
defaults to an empty list.

13
spec/classes/tripleo_profile_base_cinder_volume_rbd_spec.rb
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@ -54,6 +54,7 @@ describe 'tripleo::profile::base::cinder::volume::rbd' do
:backend_name => 'poodles',
:cinder_rbd_backend_host => 'fe80::fc54:ff:fe9e:7846',
:cinder_rbd_pool_name => 'poolname',
:cinder_rbd_extra_pools => ['aplenty', 'galore'],
:cinder_rbd_secret_uuid => 'secretuuid',
:cinder_rbd_user_name => 'kcatsnepo'
})
@ -65,6 +66,18 @@ describe 'tripleo::profile::base::cinder::volume::rbd' do
:rbd_user => 'kcatsnepo',
:rbd_secret_uuid => 'secretuuid'
)
is_expected.to contain_cinder__backend__rbd('poodles_aplenty').with(
:backend_host => 'fe80::fc54:ff:fe9e:7846',
:rbd_pool => 'aplenty',
:rbd_user => 'kcatsnepo',
:rbd_secret_uuid => 'secretuuid'
)
is_expected.to contain_cinder__backend__rbd('poodles_galore').with(
:backend_host => 'fe80::fc54:ff:fe9e:7846',
:rbd_pool => 'galore',
:rbd_user => 'kcatsnepo',
:rbd_secret_uuid => 'secretuuid'
)
end
end
end

12
spec/classes/tripleo_profile_base_cinder_volume_spec.rb
View File

@ -187,6 +187,18 @@ describe 'tripleo::profile::base::cinder::volume' do
:enabled_backends => ['tripleo_ceph']
)
end
context 'additional rbd pools' do
# The list of additional rbd pools is not an input, but instead comes
# from hiera. Step 4's hiera data doesn't define additional RBD pools,
# so test the feature by defining extra pools in step 5 (see
# ../fixtures/hieradata/step5.yaml).
let(:params) { { :step => 5 } }
it 'should configure additional rbd backends' do
is_expected.to contain_class('cinder::backends').with(
:enabled_backends => ['tripleo_ceph', 'tripleo_ceph_foo', 'tripleo_ceph_bar']
)
end
end
end
context 'with only user backend' do

3
spec/fixtures/hieradata/step5.yaml vendored
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@ -1,2 +1,5 @@
---
step: 5
tripleo::profile::base::cinder::volume::rbd::cinder_rbd_extra_pools:
- 'foo'
- 'bar'