Add support to configure virtlogd

Add a new class nova::compute::libvirt::virtlogd to manage virtlogd
configuration, which is located in /etc/libvirt/virtlogd.conf.

Change-Id: Iddfec9557ac93935744aa96b813eb54bda876deb

lib/puppet/provider/virtlogd_config/ini_setting.rb

@@ -0,0 +1,22 @@
+Puppet::Type.type(:virtlogd_config).provide(
+  :ini_setting,
+  :parent => Puppet::Type.type(:ini_setting).provider(:ruby)
+) do
+
+  def section
+    ''
+  end
+
+  def setting
+    resource[:name]
+  end
+
+  def separator
+    '='
+  end
+
+  def self.file_path
+    '/etc/libvirt/virtlogd.conf'
+  end
+
+end

lib/puppet/type/virtlogd_config.rb

@@ -0,0 +1,46 @@
+Puppet::Type.newtype(:virtlogd_config) do
+
+  ensurable
+
+  newparam(:name, :namevar => true) do
+    desc 'setting name to manage from virtlogd.conf'
+    newvalues(/\S+/)
+  end
+
+  newproperty(:value) do
+    desc 'The value of the setting to be defined.'
+    munge do |value|
+      value = value.to_s.strip
+      value
+    end
+
+    def is_to_s( currentvalue )
+      if resource.secret?
+        return '[old secret redacted]'
+      else
+        return currentvalue
+      end
+    end
+
+    def should_to_s( newvalue )
+      if resource.secret?
+        return '[new secret redacted]'
+      else
+        return newvalue
+      end
+    end
+  end
+
+  newparam(:secret, :boolean => true) do
+    desc 'Whether to hide the value from Puppet logs. Defaults to `false`.'
+
+    newvalues(:true, :false)
+
+    defaultto false
+  end
+
+  autorequire(:package) do
+    'libvirt-daemon'
+  end
+
+end

manifests/compute/libvirt/virtlogd.pp

@@ -0,0 +1,132 @@
+# == Class: nova::compute::libvirt::virtlogd
+#
+# virtlogd configuration
+#
+# === Parameters:
+#
+# [*log_level*]
+#   Defines a log level to filter log outputs.
+#   Defaults to undef
+#
+# [*log_filters*]
+#   Defines a log filter to select a different logging level for
+#   for a given category log outputs.
+#   Defaults to undef
+#
+# [*log_outputs*]
+#   (optional) Defines log outputs, as specified in
+#   https://libvirt.org/logging.html
+#   Defaults to undef
+#
+# [*max_clients*]
+#   The maximum number of concurrent client connections to allow
+#   on primary socket.
+#   Defaults to undef
+#
+# [*admin_max_clients*]
+#   The maximum number of concurrent client connections to allow
+#   on administrative socket.
+#   Defaults to undef
+#
+# [*max_size*]
+#   Maximum file size before rolling over.
+#   Defaults to undef
+#
+# [*max_backups*]
+#   Maximum nuber of backup files to keep.
+#   Defaults to undef
+#
+class nova::compute::libvirt::virtlogd (
+  $log_level         = undef,
+  $log_filters       = undef,
+  $log_outputs       = undef,
+  $max_clients       = undef,
+  $admin_max_clients = undef,
+  $max_size          = undef,
+  $max_backups       = undef,
+) {
+
+  include nova::deps
+  require ::nova::compute::libvirt
+
+  if $log_level {
+    virtlogd_config {
+      'log_level': value => $log_level;
+    }
+  }
+  else {
+    virtlogd_config {
+      'log_level': ensure => 'absent';
+    }
+  }
+
+  if $log_filters {
+    virtlogd_config {
+      'log_filters': value => "\"${log_filters}\"";
+    }
+  }
+  else {
+    virtlogd_config {
+      'log_filters': ensure => 'absent';
+    }
+  }
+
+  if $log_outputs {
+    virtlogd_config {
+      'log_outputs': value => "\"${log_outputs}\"";
+    }
+  }
+  else {
+    virtlogd_config {
+      'log_outputs': ensure => 'absent';
+    }
+  }
+
+  if $max_clients {
+    virtlogd_config {
+      'max_clients': value => $max_clients;
+    }
+  }
+  else {
+    virtlogd_config {
+      'max_clients': ensure => 'absent';
+    }
+  }
+
+  if $admin_max_clients {
+    virtlogd_config {
+      'admin_max_clients': value => $admin_max_clients;
+    }
+  }
+  else {
+    virtlogd_config {
+      'admin_max_clients': ensure => 'absent';
+    }
+  }
+
+  if $max_size {
+    virtlogd_config {
+      'max_size': value => $max_size;
+    }
+  }
+  else {
+    virtlogd_config {
+      'max_size': ensure => 'absent';
+    }
+  }
+
+  if $max_backups {
+    virtlogd_config {
+      'max_backups': value => $max_backups;
+    }
+  }
+  else {
+    virtlogd_config {
+      'max_backups': ensure => 'absent';
+    }
+  }
+
+  Anchor['nova::config::begin']
+  -> Virtlogd_config<||>
+  -> Anchor['nova::config::end']
+}

manifests/compute/libvirt/virtlogd/config.pp

@@ -0,0 +1,30 @@
+# == Class: nova::compute::libvirt::virtlogd::config
+#
+# This class is used to manage arbitrary virtlogd configurations.
+#
+# === Parameters
+#
+# [*virtlogd_config*]
+#   (optional) Allow configuration of arbitrary libvirtd configurations.
+#   The value is an hash of virtlogd_config resources. Example:
+#   { 'foo' => { value => 'fooValue'},
+#     'bar' => { value => 'barValue'}
+#   }
+#   In yaml format, Example:
+#   virtlogd_config:
+#     foo:
+#       value: fooValue
+#     bar:
+#       value: barValue
+#
+#   NOTE: The configuration MUST NOT be already handled by this module
+#   or Puppet catalog compilation will fail with duplicate resources.
+#
+class nova::compute::libvirt::virtlogd::config (
+  $virtlogd_config        = {},
+) {
+
+  validate_legacy(Hash, 'validate_hash', $virtlogd_config)
+
+  create_resources('virtlogd_config', $virtlogd_config)
+}

releasenotes/notes/libvirt-virtlogd-f4e2618a87fbab5a.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    A new nova::compute::libvirt::virtlogd class has been added to manage
+    virtlogd configration.

spec/classes/nova_compute_libvirt_virtlogd_spec.rb

@@ -0,0 +1,71 @@
+# Unit tests for nova::compute::libvirt::virtlogd class
+#
+require 'spec_helper'
+
+describe 'nova::compute::libvirt::virtlogd' do
+
+  let :pre_condition do
+    <<-eos
+    include nova
+    include nova::compute
+    include nova::compute::libvirt
+eos
+  end
+
+  shared_examples_for 'nova-compute-libvirt-virtlogd' do
+
+    context 'with default parameters' do
+      let :params do
+        {}
+      end
+
+      it { is_expected.to contain_class('nova::deps')}
+      it { is_expected.to contain_class('nova::compute::libvirt::virtlogd')}
+
+      it { is_expected.to contain_virtlogd_config('log_level').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('log_outputs').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('log_filters').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('max_clients').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('admin_max_clients').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('max_size').with_ensure('absent')}
+      it { is_expected.to contain_virtlogd_config('max_backups').with_ensure('absent')}
+    end
+
+    context 'with specified parameters' do
+      let :params do
+        { :log_level         => 3,
+          :log_outputs       => '3:syslog',
+          :log_filters       => '1:logging 4:object 4:json 4:event 1:util',
+          :max_clients       => 1024,
+          :admin_max_clients => 5,
+          :max_size          => 2097152,
+          :max_backups       => 3,
+        }
+      end
+
+      it { is_expected.to contain_class('nova::deps')}
+      it { is_expected.to contain_class('nova::compute::libvirt::virtlogd')}
+
+      it { is_expected.to contain_virtlogd_config('log_level').with_value(params[:log_level])}
+      it { is_expected.to contain_virtlogd_config('log_outputs').with_value("\"#{params[:log_outputs]}\"")}
+      it { is_expected.to contain_virtlogd_config('log_filters').with_value("\"#{params[:log_filters]}\"")}
+      it { is_expected.to contain_virtlogd_config('max_clients').with_value(params[:max_clients])}
+      it { is_expected.to contain_virtlogd_config('admin_max_clients').with_value(params[:admin_max_clients])}
+      it { is_expected.to contain_virtlogd_config('max_size').with_value(params[:max_size])}
+      it { is_expected.to contain_virtlogd_config('max_backups').with_value(params[:max_backups])}
+    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 'nova-compute-libvirt-virtlogd'
+     end
+  end
+
+end