implement class and defined type for cinder GPFS driver
implement class, defined type and tests for cinder IBM GPFS driver Change-Id: Iec7d569811d876390e40f00eab9d0a8d9ebe022f Closes-Bug: #1493336
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Benedikt von St. Vieth
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91
manifests/backend/gpfs.pp
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91
manifests/backend/gpfs.pp
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# == define: cinder::backend::gpfs
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#
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# Configures Cinder to use the IBM GPFS Driver
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#
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# === Parameters
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#
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# [*gpfs_mount_point_base*]
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# (required) Specifies the path of the GPFS directory where Block Storage
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# volume and snapshot files are stored.
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#
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# [*gpfs_images_dir*]
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# (optional) Specifies the path of the Image service repository in GPFS.
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# Leave undefined if not storing images in GPFS. Defaults to "None" via
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# driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_images_share_mode*]
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# (optional) Specifies the type of image copy to be used. Set this when the
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# Image service repository also uses GPFS so that image files can be
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# transferred efficiently from the Image service to the Block Storage
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# service. There are two valid values: "copy" specifies that a full copy of
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# the image is made; "copy_on_write" specifies that copy-on-write
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# optimization strategy is used and unmodified blocks of the image file are
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# shared efficiently. Defaults to "None" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_max_clone_depth*]
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# (optional) Specifies an upper limit on the number of indirections required
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# to reach a specific block due to snapshots or clones. A lengthy chain of
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# copy-on-write snapshots or clones can have a negative impact on
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# performance, but improves space utilization. 0 indicates unlimited clone
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# depth. Defaults to "0" via driver implementation
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_sparse_volumes*]
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# (optional) Specifies that volumes are created as sparse files which
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# initially consume no space. If set to False, the volume is created as a
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# fully allocated file, in which case, creation may take a significantly
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# longer time. Defaults to "True" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_storage_pool*]
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# (optional) Specifies the storage pool that volumes are assigned to. By
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# default, the system storage pool is used. Defaults to "system" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*extra_options*]
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# (optional) Hash of extra options to pass to the backend stanza
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# Defaults to: {}
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# Example :
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# { 'gpfs_backend/param1' => { 'value' => value1 } }
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#
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# === Authors
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#
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# Benedikt von St. Vieth <b.von.st.vieth@fz-juelich.de>
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#
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# === Copyright
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#
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# Copyright 2015
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#
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define cinder::backend::gpfs (
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$gpfs_mount_point_base,
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$gpfs_images_dir = '<SERVICE DEFAULT>',
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$gpfs_images_share_mode = '<SERVICE DEFAULT>',
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$gpfs_max_clone_depth = '<SERVICE DEFAULT>',
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$gpfs_sparse_volumes = '<SERVICE DEFAULT>',
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$gpfs_storage_pool = '<SERVICE DEFAULT>',
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$extra_options = {},
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) {
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if ! ($gpfs_images_share_mode in ['copy', 'copy_on_write', '<SERVICE DEFAULT>']) {
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fail('gpfs_images_share_mode only support `copy` or `copy_on_write`')
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}
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if $gpfs_images_share_mode in ['copy', 'copy_on_write'] and $gpfs_images_dir == '<SERVICE DEFAULT>' {
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fail('gpfs_images_share_mode only in conjunction with gpfs_images_dir')
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}
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cinder_config {
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"${name}/volume_driver":
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value => 'cinder.volume.drivers.ibm.gpfs.GPFSDriver';
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"${name}/gpfs_max_clone_depth": value => $gpfs_max_clone_depth;
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"${name}/gpfs_mount_point_base": value => $gpfs_mount_point_base;
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"${name}/gpfs_sparse_volumes": value => $gpfs_sparse_volumes;
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"${name}/gpfs_storage_pool": value => $gpfs_storage_pool;
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"${name}/gpfs_images_share_mode": value => $gpfs_images_share_mode;
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"${name}/gpfs_images_dir": value => $gpfs_images_dir;
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}
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create_resources('cinder_config', $extra_options)
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}
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79
manifests/volume/gpfs.pp
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79
manifests/volume/gpfs.pp
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# == Class: cinder::volume::gpfs
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#
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# Configures Cinder to use the IBM GPFS Driver
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#
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# === Parameters
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#
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# [*gpfs_mount_point_base*]
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# (required) Specifies the path of the GPFS directory where Block Storage
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# volume and snapshot files are stored.
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#
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# [*gpfs_images_dir*]
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# (optional) Specifies the path of the Image service repository in GPFS.
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# Leave undefined if not storing images in GPFS. Defaults to "None" via
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# driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_images_share_mode*]
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# (optional) Specifies the type of image copy to be used. Set this when the
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# Image service repository also uses GPFS so that image files can be
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# transferred efficiently from the Image service to the Block Storage
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# service. There are two valid values: "copy" specifies that a full copy of
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# the image is made; "copy_on_write" specifies that copy-on-write
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# optimization strategy is used and unmodified blocks of the image file are
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# shared efficiently. Defaults to "None" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_max_clone_depth*]
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# (optional) Specifies an upper limit on the number of indirections required
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# to reach a specific block due to snapshots or clones. A lengthy chain of
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# copy-on-write snapshots or clones can have a negative impact on
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# performance, but improves space utilization. 0 indicates unlimited clone
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# depth. Defaults to "0" via driver implementation
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_sparse_volumes*]
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# (optional) Specifies that volumes are created as sparse files which
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# initially consume no space. If set to False, the volume is created as a
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# fully allocated file, in which case, creation may take a significantly
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# longer time. Defaults to "True" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*gpfs_storage_pool*]
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# (optional) Specifies the storage pool that volumes are assigned to. By
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# default, the system storage pool is used. Defaults to "system" via driver.
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# Defaults to <SERVICE DEFAULT>
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#
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# [*extra_options*]
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# (optional) Hash of extra options to pass to the backend stanza
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# Defaults to: {}
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# Example :
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# { 'gpfs_backend/param1' => { 'value' => value1 } }
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#
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# === Authors
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#
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# Benedikt von St. Vieth <b.von.st.vieth@fz-juelich.de>
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#
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# === Copyright
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#
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# Copyright 2015
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#
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class cinder::volume::gpfs(
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$gpfs_mount_point_base,
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$gpfs_images_dir = '<SERVICE DEFAULT>',
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$gpfs_images_share_mode = '<SERVICE DEFAULT>',
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$gpfs_max_clone_depth = '<SERVICE DEFAULT>',
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$gpfs_sparse_volumes = '<SERVICE DEFAULT>',
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$gpfs_storage_pool = '<SERVICE DEFAULT>',
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$extra_options = {}
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) {
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cinder::backend::gpfs { 'DEFAULT':
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gpfs_mount_point_base => $gpfs_mount_point_base,
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gpfs_images_dir => $gpfs_images_dir,
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gpfs_images_share_mode => $gpfs_images_share_mode,
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gpfs_max_clone_depth => $gpfs_max_clone_depth,
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gpfs_sparse_volumes => $gpfs_sparse_volumes,
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gpfs_storage_pool => $gpfs_storage_pool,
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extra_options => $extra_options,
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}
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}
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18
spec/classes/cinder_volume_gpfs_spec.rb
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18
spec/classes/cinder_volume_gpfs_spec.rb
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require 'spec_helper'
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describe 'cinder::volume::gpfs' do
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let :params do
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{
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:gpfs_mount_point_base => '/opt/gpfs/cinder/volumes',
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}
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end
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context 'gpfs volume driver' do
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it 'checks gpfs backend availability' do
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is_expected.to contain_cinder__backend__gpfs('DEFAULT')
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end
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end
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end
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95
spec/defines/cinder_backend_gpfs_spec.rb
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95
spec/defines/cinder_backend_gpfs_spec.rb
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require 'spec_helper'
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describe 'cinder::backend::gpfs' do
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let (:title) { 'gpfs' }
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let :params do
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{
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:gpfs_mount_point_base => '/opt/gpfs/cinder/volumes',
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}
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end
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let :default_params do
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{
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:gpfs_max_clone_depth => '<SERVICE DEFAULT>',
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:gpfs_sparse_volumes => '<SERVICE DEFAULT>',
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:gpfs_storage_pool => '<SERVICE DEFAULT>',
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:gpfs_images_dir => '<SERVICE DEFAULT>',
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:gpfs_images_share_mode => '<SERVICE DEFAULT>',
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}
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end
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let :custom_params do
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{
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:gpfs_max_clone_depth => 1,
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:gpfs_sparse_volumes => false,
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:gpfs_storage_pool => 'foo',
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}
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end
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shared_examples_for 'gpfs volume driver' do
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let :params_hash do
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default_params.merge(params)
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end
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it 'configures gpfs volume driver' do
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is_expected.to contain_cinder_config('gpfs/volume_driver').with_value(
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'cinder.volume.drivers.ibm.gpfs.GPFSDriver')
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params_hash.each_pair do |config,value|
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is_expected.to contain_cinder_config("gpfs/#{config}").with_value( value )
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end
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end
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end
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context 'with default parameters' do
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it_configures 'gpfs volume driver'
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end
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context 'with additional image parameters' do
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before do
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params.merge!({
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:gpfs_images_dir => '/gpfs/glance/images',
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:gpfs_images_share_mode => 'copy_on_write',
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})
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end
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it_configures 'gpfs volume driver'
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end
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context 'with custom parameters' do
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before do
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params.merge(custom_params)
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end
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it_configures 'gpfs volume driver'
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end
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context 'with image share mode but without image path' do
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before do
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params.merge!({
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:gpfs_images_share_mode => 'copy_on_write',
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})
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end
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it_raises 'a Puppet::Error', /gpfs_images_share_mode only in conjunction with gpfs_images_dir/
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end
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context 'with wrong gpfs_images_share_mode' do
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before do
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params.merge!({
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:gpfs_images_share_mode => 'foo',
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})
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end
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it_raises 'a Puppet::Error', /gpfs_images_share_mode only support `copy` or `copy_on_write`/
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end
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context 'gpfs backend with additional configuration' do
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before do
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params.merge!({:extra_options => {'gpfs/param1' => { 'value' => 'value1' }}})
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end
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it 'configure gpfs backend with additional configuration' do
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is_expected.to contain_cinder_config('gpfs/param1').with({
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:value => 'value1'
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})
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end
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end
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end
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