Merge "Add LVM backend"

manifests/backend/lvm.pp

@@ -0,0 +1,61 @@
+#
+# == Defines: manila::backend::lvm
+#
+# Configures Manila to use LVM as a share driver
+#
+# === Parameters
+# [*lvm_share_export_ip*]
+#  (required) List of IPs to export shares belonging to the LVM storage driver.
+#
+# [*share_backend_name*]
+#   (optional) Name of the backend in manila.conf that these settings will
+#   reside in.
+#   Defaults to: $name
+#
+# [*driver_handles_share_servers*]
+#  (optional) Denotes whether the driver should handle the responsibility of
+#  managing share servers. This must be set to false if the driver is to
+#  operate without managing share servers.
+#  Defaults to: $::os_service_default
+#
+# [*lvm_share_export_root*]
+#  (optional) Base folder where exported shares are located.
+#  Defauls to: $::os_service_default
+#
+# [*lvm_share_mirrors*]
+#  (optional) If set, create LVMs with multiple mirrors. Note that this requires
+#  lvm_mirrors + 2 PVs with available space.
+#  Defaults to: $::os_service_default
+
+# [*lvm_share_volume_group*]
+#  (optional) Name for the VG that will contain exported shares. (string value)
+#  Defaults to: $::os_service_default
+
+# [*lvm_share_helpers*]
+#  (optional) Specify list of share export helpers. (list value)
+#  Defaults to: $::os_service_default
+#
+define manila::backend::lvm (
+  $lvm_share_export_ip,
+  $share_backend_name           = $name,
+  $driver_handles_share_servers = $::os_service_default,
+  $lvm_share_export_root        = $::os_service_default,
+  $lvm_share_mirrors            = $::os_service_default,
+  $lvm_share_volume_group       = $::os_service_default,
+  $lvm_share_helpers            = $::os_service_default,
+) {
+
+  include manila::deps
+  $share_driver = 'manila.share.drivers.lvm.LVMShareDriver'
+
+  manila_config {
+    "${name}/share_backend_name":           value => $share_backend_name;
+    "${name}/share_driver":                 value => $share_driver;
+    "${name}/driver_handles_share_servers": value => $driver_handles_share_servers;
+    "${name}/lvm_share_export_ip":          value => $lvm_share_export_ip;
+    "${name}/lvm_share_export_root":        value => $lvm_share_export_root;
+    "${name}/lvm_share_mirrors":            value => $lvm_share_mirrors;
+    "${name}/lvm_share_volume_group":       value => $lvm_share_volume_group;
+    "${name}/lvm_share_helpers":            value => join(any2array($lvm_share_helpers), ',');
+  }
+}

releasenotes/notes/add_lvm_backend-61200603bcb4139e.yaml

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+---
+features:
+  - Allow to configure Manila with LVM backend.

spec/defines/manila_backend_lvm_spec.rb

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+require 'spec_helper'
+
+describe 'manila::backend::lvm' do
+
+  shared_examples_for 'lvm share driver' do
+    let(:title) {'mylvm'}
+
+    let :params do
+      {
+        :driver_handles_share_servers => false,
+        :lvm_share_export_ip          => '1.2.3.4',
+        :lvm_share_export_root        => '$state_path/mnt',
+        :lvm_share_mirrors            => 1,
+        :lvm_share_volume_group       => 'lvm-shares',
+        :lvm_share_helpers            => ['CIFS=manila.share.drivers.helpers.CIFSHelperUserAccess','NFS=manila.share.drivers.helpers.NFSHelper'],
+      }
+    end
+
+    it 'configures lvm share driver' do
+      is_expected.to contain_manila_config('mylvm/share_backend_name').with_value('mylvm')
+      is_expected.to contain_manila_config('mylvm/share_driver').with_value(
+        'manila.share.drivers.lvm.LVMShareDriver')
+      is_expected.to contain_manila_config('mylvm/driver_handles_share_servers').with_value(false)
+      is_expected.to contain_manila_config('mylvm/lvm_share_export_ip').with_value('1.2.3.4')
+      is_expected.to contain_manila_config('mylvm/lvm_share_export_root').with_value('$state_path/mnt')
+      is_expected.to contain_manila_config('mylvm/lvm_share_mirrors').with_value('1')
+      is_expected.to contain_manila_config('mylvm/lvm_share_volume_group').with_value('lvm-shares')
+      is_expected.to contain_manila_config('mylvm/lvm_share_helpers').with_value(
+        'CIFS=manila.share.drivers.helpers.CIFSHelperUserAccess,NFS=manila.share.drivers.helpers.NFSHelper')
+    end
+  end
+
+  on_supported_os({
+    :supported_os => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      it_configures 'lvm share driver'
+    end
+  end
+end