cookbook-pacemaker/libraries/cib_objects.rb
2014-01-23 15:17:23 +00:00

94 lines
2.6 KiB
Ruby

require 'shellwords'
module Chef::Libraries
module Pacemaker
module CIBObjects
include Chef::Mixin::ShellOut
def get_cib_object_definition(name)
cmd = Mixlib::ShellOut.new("crm configure show #{name}")
cmd.environment['HOME'] = ENV.fetch('HOME', '/root')
cmd.run_command
begin
cmd.error!
cmd.stdout
rescue
nil
end
end
def cib_object_exists?(name)
! get_cib_object_definition(name).nil?
end
def cib_object_type(obj_definition)
unless obj_definition =~ /\A(\w+)\s/
raise "Couldn't extract CIB object type from '#{obj_definition}'"
end
return $1
end
def pacemaker_resource_running?(name)
cmd = shell_out! "crm", "resource", "status", name
Chef::Log.info cmd.stdout
cmd.stdout.include? "resource #{name} is running"
end
def resource_params_string(params)
return "" if ! params or params.empty?
s = " params"
params.sort.each do |key, value|
s << %' #{key}="#{value}"'
end
s
end
def resource_meta_string(meta)
return "" if ! meta or meta.empty?
s = " meta"
meta.sort.each do |key, value|
s << %' #{key}="#{value}"'
end
s
end
def resource_op_string(ops)
return "" if ! ops or ops.empty?
s = " op"
ops.sort.each do |op, attrs|
s << " #{op}"
attrs.sort.each do |key, value|
s << %' #{key}="#{value}"'
end
end
s
end
# CIB object definitions look something like:
#
# primitive keystone ocf:openstack:keystone \
# params os_username="crowbar" os_password="crowbar" os_tenant_name="openstack" \
# meta target-role="Started" is-managed="true" \
# op monitor interval="10" timeout=30s \
# op start interval="10s" timeout="240" \
#
# This method extracts a Hash from one of the params / meta / op lines.
def extract_hash(name, obj_definition, data_type)
unless obj_definition =~ /^\s+#{data_type} (.+?)(\s*\\)?$/
raise "Couldn't retrieve #{data_type} for '#{name}' CIB object from [#{obj_definition}]"
end
h = {}
Shellwords.split($1).each do |kvpair|
unless kvpair =~ /^(.+?)=(.+)$/
raise "Couldn't understand '#{kvpair}' for #{data_type} section of '#{name}' primitive"
end
h[$1] = $2.sub(/^"(.*)"$/, "\1")
end
h
end
end
end
end