Class: Puppet::Transaction::ResourceHarness
- Extended by:
- Forwardable
- Defined in:
- lib/vendor/puppet/transaction/resource_harness.rb
Instance Attribute Summary collapse
-
#transaction ⇒ Object
readonly
Returns the value of attribute transaction.
Instance Method Summary collapse
- #allow_changes?(resource) ⇒ Boolean
- #apply_parameter(property, current_value, do_audit, historical_value) ⇒ Object
-
#cache(resource, name, value) ⇒ Object
Used mostly for scheduling and auditing at this point.
-
#cached(resource, name) ⇒ Object
Used mostly for scheduling and auditing at this point.
- #create_change_event(property, current_value, do_audit, historical_value) ⇒ Object
- #evaluate(resource) ⇒ Object
-
#initialize(transaction) ⇒ ResourceHarness
constructor
A new instance of ResourceHarness.
- #perform_changes(resource) ⇒ Object
- #schedule(resource) ⇒ Object
- #scheduled?(status, resource) ⇒ Boolean
Constructor Details
#initialize(transaction) ⇒ ResourceHarness
Returns a new instance of ResourceHarness.
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 153 def initialize(transaction) @transaction = transaction end |
Instance Attribute Details
#transaction ⇒ Object (readonly)
Returns the value of attribute transaction.
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 7 def transaction @transaction end |
Instance Method Details
#allow_changes?(resource) ⇒ Boolean
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 9 def allow_changes?(resource) if resource.purging? and resource.deleting? and deps = relationship_graph.dependents(resource) \ and ! deps.empty? and deps.detect { |d| ! d.deleting? } deplabel = deps.collect { |r| r.ref }.join(",") plurality = deps.length > 1 ? "":"s" resource.warning "#{deplabel} still depend#{plurality} on me -- not purging" false else true end end |
#apply_parameter(property, current_value, do_audit, historical_value) ⇒ Object
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 101 def apply_parameter(property, current_value, do_audit, historical_value) event = create_change_event(property, current_value, do_audit, historical_value) if do_audit && historical_value && historical_value != current_value = " (previously recorded value was #{property.is_to_s(historical_value)})" else = "" end if property.noop event. = "current_value #{property.is_to_s(current_value)}, should be #{property.should_to_s(property.should)} (noop)#{}" event.status = "noop" else property.sync event. = [ property.change_to_s(current_value, property.should), ].join event.status = "success" end event rescue => detail puts detail.backtrace if Puppet[:trace] event.status = "failure" event. = "change from #{property.is_to_s(current_value)} to #{property.should_to_s(property.should)} failed: #{detail}" event ensure event.send_log end |
#cache(resource, name, value) ⇒ Object
Used mostly for scheduling and auditing at this point.
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 27 def cache(resource, name, value) Puppet::Util::Storage.cache(resource)[name] = value end |
#cached(resource, name) ⇒ Object
Used mostly for scheduling and auditing at this point.
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 22 def cached(resource, name) Puppet::Util::Storage.cache(resource)[name] end |
#create_change_event(property, current_value, do_audit, historical_value) ⇒ Object
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 84 def create_change_event(property, current_value, do_audit, historical_value) event = property.event event.previous_value = current_value event.desired_value = property.should event.historical_value = historical_value if do_audit event.audited = true event.status = "audit" if historical_value != current_value event. = "audit change: previously recorded value #{property.is_to_s(historical_value)} has been changed to #{property.is_to_s(current_value)}" end end event end |
#evaluate(resource) ⇒ Object
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 129 def evaluate(resource) start = Time.now status = Puppet::Resource::Status.new(resource) perform_changes(resource).each do |event| status << event end if status.changed? && ! resource.noop? cache(resource, :synced, Time.now) resource.flush if resource.respond_to?(:flush) end return status rescue => detail resource.fail "Could not create resource status: #{detail}" unless status puts detail.backtrace if Puppet[:trace] resource.err "Could not evaluate: #{detail}" status.failed = true return status ensure (status.evaluation_time = Time.now - start) if status end |
#perform_changes(resource) ⇒ Object
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 31 def perform_changes(resource) current = resource.retrieve_resource cache resource, :checked, Time.now return [] if ! allow_changes?(resource) current_values = current.to_hash historical_values = Puppet::Util::Storage.cache(resource).dup desired_values = {} resource.properties.each do |property| desired_values[property.name] = property.should end audited_params = (resource[:audit] || []).map { |p| p.to_sym } synced_params = [] # Record the current state in state.yml. audited_params.each do |param| cache(resource, param, current_values[param]) end # Update the machine state & create logs/events events = [] ensure_param = resource.parameter(:ensure) if desired_values[:ensure] && !ensure_param.safe_insync?(current_values[:ensure]) events << apply_parameter(ensure_param, current_values[:ensure], audited_params.include?(:ensure), historical_values[:ensure]) synced_params << :ensure elsif current_values[:ensure] != :absent work_order = resource.properties # Note: only the resource knows what order to apply changes in work_order.each do |param| if desired_values[param.name] && !param.safe_insync?(current_values[param.name]) events << apply_parameter(param, current_values[param.name], audited_params.include?(param.name), historical_values[param.name]) synced_params << param.name end end end # Add more events to capture audit results audited_params.each do |param_name| if historical_values.include?(param_name) if historical_values[param_name] != current_values[param_name] && !synced_params.include?(param_name) event = create_change_event(resource.parameter(param_name), current_values[param_name], true, historical_values[param_name]) event.send_log events << event end else resource.property(param_name).notice "audit change: newly-recorded value #{current_values[param_name]}" end end events end |
#schedule(resource) ⇒ Object
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 169 def schedule(resource) unless resource.catalog resource.warning "Cannot schedule without a schedule-containing catalog" return nil end return nil unless name = resource[:schedule] resource.catalog.resource(:schedule, name) || resource.fail("Could not find schedule #{name}") end |
#scheduled?(status, resource) ⇒ Boolean
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# File 'lib/vendor/puppet/transaction/resource_harness.rb', line 157 def scheduled?(status, resource) return true if Puppet[:ignoreschedules] return true unless schedule = schedule(resource) # We use 'checked' here instead of 'synced' because otherwise we'll # end up checking most resources most times, because they will generally # have been synced a long time ago (e.g., a file only gets updated # once a month on the server and its schedule is daily; the last sync time # will have been a month ago, so we'd end up checking every run). schedule.match?(cached(resource, :checked).to_i) end |