c0e3907ba0
It's really ugly to have to keep repeating File.dirname(__FILE__), so we use a temporary variable, even in the case of a single require. This minimises long "requires" lines and "requires" statements with needing line-breaks, and should make search-and-replace a bit easier if we later want to migrate to __dir__ (Ruby >= 2.0) or require_relative. http://stackoverflow.com/questions/4333286/ruby-require-vs-require-relative-best-practice-to-workaround-running-in-both I've deliberately rejected the pattern: require File.expand_path('../relative/path', __FILE__) because it relies on inconsistent semantics and inconsistent documentation in File.expand_path: http://stackoverflow.com/questions/4333286/ruby-require-vs-require-relative-best-practice-to-workaround-running-in-both#comment34147297_4333552
73 lines
2.1 KiB
Ruby
73 lines
2.1 KiB
Ruby
# Author:: Robert Choi
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# Cookbook Name:: pacemaker
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# Provider:: colocation
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#
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# Copyright:: 2013, Robert Choi
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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this_dir = ::File.dirname(__FILE__)
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require ::File.expand_path('../libraries/pacemaker', this_dir)
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require ::File.expand_path('../libraries/chef/mixin/pacemaker', this_dir)
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include Chef::Mixin::Pacemaker::StandardCIBObject
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action :create do
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name = new_resource.name
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if @current_resource_definition.nil?
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create_resource(name)
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else
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maybe_modify_resource(name)
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end
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end
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action :delete do
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next unless @current_resource
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standard_delete_resource
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end
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def cib_object_class
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::Pacemaker::Constraint::Colocation
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end
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def load_current_resource
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standard_load_current_resource
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end
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def init_current_resource
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name = @new_resource.name
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@current_resource = Chef::Resource::PacemakerColocation.new(name)
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attrs = [:score, :resources]
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@current_cib_object.copy_attrs_to_chef_resource(@current_resource, *attrs)
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end
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def create_resource(name)
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standard_create_resource
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end
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def maybe_modify_resource(name)
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Chef::Log.info "Checking existing #{@current_cib_object} for modifications"
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desired_colocation = cib_object_class.from_chef_resource(new_resource)
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if desired_colocation.definition_string != @current_cib_object.definition_string
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Chef::Log.debug "changed from [#{@current_cib_object.definition_string}] to [#{desired_colocation.definition_string}]"
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cmd = desired_colocation.reconfigure_command
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execute cmd do
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action :nothing
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end.run_action(:run)
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new_resource.updated_by_last_action(true)
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end
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end
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