281 lines
8.6 KiB
Ruby
281 lines
8.6 KiB
Ruby
require_relative '../pcmk_common'
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Puppet::Type.type(:pcmk_resource).provide(:default) do
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desc 'A base resource definition for a pacemaker resource'
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def build_pcs_resource_cmd(update=false)
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resource_params = @resource[:resource_params]
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meta_params = @resource[:meta_params]
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op_params = @resource[:op_params]
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clone_params = @resource[:clone_params]
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group_params = @resource[:group_params]
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master_params = @resource[:master_params]
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location_rule = @resource[:location_rule]
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bundle = @resource[:bundle]
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suffixes = 0
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if clone_params then suffixes +=1 end
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if master_params then suffixes +=1 end
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if group_params then suffixes +=1 end
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if suffixes > 1
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raise(Puppet::Error, "May only define one of clone_params, "+
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"master_params and group_params")
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end
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if update
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create_cmd = ' update '
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else
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create_cmd = ' create '
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end
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if @resource[:force]
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force_cmd = '--force '
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else
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force_cmd = ''
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end
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# Build the 'pcs resource create' command. Check out the pcs man page :-)
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cmd = force_cmd + 'resource' + create_cmd + @resource[:name] + ' ' + @resource[:resource_type]
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if @resource[:resource_type] == 'remote'
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if not_empty_string(@resource[:remote_address])
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cmd += ' server=' + @resource[:remote_address]
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end
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# reconnect_interval always has a default
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cmd += " reconnect_interval=#{@resource[:reconnect_interval]}"
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end
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if not_empty_string(resource_params)
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cmd += ' ' + resource_params
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end
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if not_empty_string(meta_params)
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cmd += ' meta ' + meta_params
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end
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if not_empty_string(op_params)
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cmd += ' op ' + op_params
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end
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# When a bundle is specified we may not specify clone, master or group
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if bundle
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cmd += ' bundle ' + bundle
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else
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if clone_params
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# pcs 0.10/pcmk 2.0 removed the --clone option
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if Puppet::Util::Package.versioncmp(pcs_cli_version(), '0.10.0') >= 0
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cmd += ' clone'
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else
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cmd += ' --clone'
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end
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if not_empty_string(clone_params)
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cmd += ' ' + clone_params
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end
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end
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if not_empty_string(group_params)
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cmd += ' --group ' + group_params
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end
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if master_params
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cmd += ' --master'
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if not_empty_string(master_params)
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cmd += ' ' + master_params
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end
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end
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end
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cmd
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end
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### overloaded methods
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def initialize(*args)
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super(*args)
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Puppet.debug("puppet-pacemaker: initialize()")
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# Hash to store the existance state of each resource or location
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@resources_state = {}
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@locations_state = {}
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end
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def create_resource_and_location(location_rule, needs_update=false)
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if needs_update then
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cmd = build_pcs_resource_cmd(update=true)
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pcmk_update_resource(@resource, cmd, '', @resource[:update_settle_secs])
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else
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cmd = build_pcs_resource_cmd()
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if location_rule then
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pcs('create', @resource[:name], "#{cmd} --disabled", @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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location_rule_create()
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pcs('create', @resource[:name], "resource enable #{@resource[:name]}", @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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else
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pcs('create', @resource[:name], cmd, @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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end
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end
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end
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def create
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# We need to probe the existance of both location and resource
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# because we do not know why we're being created (if for both or
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# only for one)
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did_resource_exist = @resources_state[@resource[:name]] == PCMK_NOCHANGENEEDED
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did_location_exist = @locations_state[@resource[:name]] == PCMK_NOCHANGENEEDED
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Puppet.debug("Create: resource exists #{@resources_state[@resource[:name]]} location exists #{@locations_state[@resource[:name]]}")
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needs_update = @resources_state[@resource[:name]] == PCMK_CHANGENEEDED
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cmd = build_pcs_resource_cmd()
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# If both the resource and the location do not exist, we create them both
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# if a location_rule is specified otherwise only the resource
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if not did_location_exist and not did_resource_exist
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create_resource_and_location(location_rule, needs_update)
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# If the location_rule already existed, we only create the resource
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elsif did_location_exist and not did_resource_exist
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create_resource_and_location(false, needs_update)
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# The location_rule does not exist and the resource does exist
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elsif not did_location_exist and did_resource_exist
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if location_rule
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location_rule_create()
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end
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else
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raise Puppet::Error, "Invalid create: #{@resource[:name]} resource exists #{did_resource_exist} "
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"location exists #{did_location_exist} - location_rule #{location_rule}"
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end
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end
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def destroy
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# Any corresponding location rules will be deleted by
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# pcs automatically, if present
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cmd = 'resource delete ' + @resource[:name]
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pcs('delete', @resource[:name], cmd, @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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end
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def exists?
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@locations_state[@resource[:name]] = location_exists?
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@resources_state[@resource[:name]] = resource_exists?
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did_resource_exist = @resources_state[@resource[:name]] == PCMK_NOCHANGENEEDED
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did_location_exist = @locations_state[@resource[:name]] == PCMK_NOCHANGENEEDED
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Puppet.debug("Exists: resource #{@resource[:name]} exists "\
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"#{@resources_state[@resource[:name]]} "\
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"location exists #{@locations_state[@resource[:name]]} "\
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"resource deep_compare: #{@resource[:deep_compare]}")
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if did_resource_exist and did_location_exist
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return true
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end
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return false
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end
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def resource_exists?
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cmd = 'resource config ' + @resource[:name] + ' > /dev/null 2>&1'
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ret = pcs('show', @resource[:name], cmd, @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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if ret == false then
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return PCMK_NOTEXISTS
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end
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if @resource[:deep_compare] and pcmk_resource_has_changed?(@resource, build_pcs_resource_cmd(update=true), '') then
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return PCMK_CHANGENEEDED
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end
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return PCMK_NOCHANGENEEDED
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end
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def location_exists?
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bundle = @resource[:bundle]
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# If no location_rule is specified then we treat it as if it
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# always exists
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if not @resource[:location_rule]
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return PCMK_NOCHANGENEEDED
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end
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if bundle
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constraint_name = 'location-' + bundle
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else
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constraint_name = 'location-' + @resource[:name]
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if @resource[:clone_params]
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constraint_name += '-clone'
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elsif @resource[:master_params]
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constraint_name += '-master'
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end
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end
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cmd = "constraint list | grep #{constraint_name} > /dev/null 2>&1"
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ret = pcs('show', @resource[:name], cmd, @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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return ret == false ? PCMK_NOTEXISTS : PCMK_NOCHANGENEEDED
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end
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def location_rule_create()
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location_cmd = build_pcs_location_rule_cmd(@resource)
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Puppet.debug("location_rule_create: #{location_cmd}")
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pcs('create', @resource[:name], location_cmd, @resource[:tries],
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@resource[:try_sleep], @resource[:verify_on_create], @resource[:post_success_sleep])
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end
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### property methods
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# It isn't an easy road if you want to make these true
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# puppet-like resource properties. Here is a start if you are feeling brave:
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# https://github.com/cwolferh/puppet-pacemaker/blob/pcmk_resource_improvements_try0/lib/puppet/provider/pcmk_resource/default.rb#L64
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def resource_params
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@resource[:resource_params]
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end
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def resource_params=(value)
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end
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def op_params
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@resource[:op_params]
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end
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def op_params=(value)
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end
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def meta_params
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@resource[:meta_params]
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end
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def meta_params=(value)
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end
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def group_params
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@resource[:group_params]
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end
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def group_params=(value)
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end
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def master_params
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@resource[:master_params]
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end
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def master_params=(value)
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end
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def clone_params
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@resource[:clone_params]
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end
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def clone_params=(value)
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end
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def location_rule
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@resource[:location_rule]
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end
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def location_rule=(value)
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end
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def reconnect_interval
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@resource[:reconnect_interval]
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end
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def reconnect_interval=(value)
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end
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def remote_address
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@resource[:remote_address]
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end
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def remote_address=(value)
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end
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def bundle
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@resource[:bundle]
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end
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def bundle=(value)
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end
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end
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