func()

in pkg/monitor/sqsevent/ec2-state-change-event.go [53:90]

• 35 lines of code
• 5 McCabe index (conditional complexity)

func (m SQSMonitor) ec2StateChangeToInterruptionEvent(event *EventBridgeEvent, message *sqs.Message) (*monitor.InterruptionEvent, error) {
	ec2StateChangeDetail := &EC2StateChangeDetail{}
	err := json.Unmarshal(event.Detail, ec2StateChangeDetail)
	if err != nil {
		return nil, err
	}

	if !strings.Contains(instanceStatesToDrain, strings.ToLower(ec2StateChangeDetail.State)) {
		return nil, nil
	}

	nodeInfo, err := m.getNodeInfo(ec2StateChangeDetail.InstanceID)
	if err != nil {
		return nil, err
	}
	interruptionEvent := monitor.InterruptionEvent{
		EventID:              fmt.Sprintf("ec2-state-change-event-%x", event.ID),
		Kind:                 monitor.StateChangeKind,
		Monitor:              SQSMonitorKind,
		StartTime:            event.getTime(),
		NodeName:             nodeInfo.Name,
		IsManaged:            nodeInfo.IsManaged,
		AutoScalingGroupName: nodeInfo.AsgName,
		InstanceID:           ec2StateChangeDetail.InstanceID,
		ProviderID:           nodeInfo.ProviderID,
		InstanceType:         nodeInfo.InstanceType,
		Description:          fmt.Sprintf("EC2 State Change event received. Instance %s went into %s at %s \n", ec2StateChangeDetail.InstanceID, ec2StateChangeDetail.State, event.getTime()),
	}

	interruptionEvent.PostDrainTask = func(interruptionEvent monitor.InterruptionEvent, n node.Node) error {
		errs := m.deleteMessages([]*sqs.Message{message})
		if errs != nil {
			return errs[0]
		}
		return nil
	}
	return &interruptionEvent, nil
}