Files
cookbook-pacemaker/providers/common.rb
Adam Spiers fe5616cfca stop libraries being required multiple times
The previous use of require caused File.join on several occasions to
calculate different paths to the same library, depending on which
__FILE__ the library was being calculated as relative to; e.g.
/some/path/prefix/spec/one/bar.rb would do the equivalent of:

  require '/some/path/prefix/spec/one/../../libraries/foo/mylib.rb'

and /some/path/prefix/spec/two/baz.rb would do the equivalent of:

  require '/some/path/prefix/spec/two/../../libraries/foo/mylib.rb'

This would result in mylib.rb being loaded multiple times, causing
warnings from constants being redefined, and worse, multiple objects
representing the same class hierarchy (@@foo) variables.  The latter
actually broke the @@subclasses registration mechanism in
Pacemaker::CIBObject.

By switching to File.expand_path, we ensure we always refer to each
library using a single absolute path, which means Ruby's require
mechanism works as it should, only loading the code the first time
round.
2014-02-06 15:44:14 +00:00

55 lines
1.7 KiB
Ruby

require 'chef/application'
require ::File.expand_path('../libraries/pacemaker', ::File.dirname(__FILE__))
class Chef
module Mixin::PacemakerCommon
# Instantiate @current_resource and read details about the existing
# primitive (if any) via "crm configure show" into it, so that we
# can compare it against the resource requested by the recipe, and
# create / delete / modify as necessary.
#
# http://docs.opscode.com/lwrp_custom_provider_ruby.html#load-current-resource
def load_current_resource
name = @new_resource.name
cib_object = Pacemaker::CIBObject.from_name(name)
unless cib_object
::Chef::Log.debug "CIB object definition nil or empty"
return
end
unless cib_object.is_a? cib_object_class
expected_type = cib_object_class.description
::Chef::Log.warn "CIB object '#{name}' was a #{cib_object.type} not a #{expected_type}"
return
end
::Chef::Log.debug "CIB object definition #{cib_object.definition}"
@current_resource_definition = cib_object.definition
cib_object.parse_definition
@current_cib_object = cib_object
init_current_resource
end
def standard_create_resource
cib_object = cib_object_class.from_chef_resource(new_resource)
cmd = cib_object.crm_configure_command
::Chef::Log.info "Creating new #{cib_object}"
execute cmd do
action :nothing
end.run_action(:run)
if cib_object.exists?
new_resource.updated_by_last_action(true)
::Chef::Log.info "Successfully configured #{cib_object}"
else
::Chef::Log.error "Failed to configure #{cib_object}"
end
end
end
end