Golang CloudFormation.DescribeStackEvents方法代碼示例

// Return the StackEvents for the given StackName/StackID
func stackEvents(stackID string, cfService *cloudformation.CloudFormation) ([]*cloudformation.StackEvent, error) {
	var events []*cloudformation.StackEvent

	nextToken := ""
	for {
		params := &cloudformation.DescribeStackEventsInput{
			StackName: aws.String(stackID),
		}
		if len(nextToken) > 0 {
			params.NextToken = aws.String(nextToken)
		}

		resp, err := cfService.DescribeStackEvents(params)
		if nil != err {
			return nil, err
		}
		events = append(events, resp.StackEvents...)
		if nil == resp.NextToken {
			break
		} else {
			nextToken = *resp.NextToken
		}
	}
	return events, nil
}

// getCloudFormationFailures returns ResourceStatusReason(s)
// of events that should be failures based on regexp match of status
func getCloudFormationFailures(stackName *string, afterTime time.Time,
	conn *cloudformation.CloudFormation) ([]string, error) {
	var failures []string
	// Only catching failures from last 100 events
	// Some extra iteration logic via NextToken could be added
	// but in reality it's nearly impossible to generate >100
	// events by a single stack update
	events, err := conn.DescribeStackEvents(&cloudformation.DescribeStackEventsInput{
		StackName: stackName,
	})

	if err != nil {
		return nil, err
	}

	failRe := regexp.MustCompile("_FAILED$")
	rollbackRe := regexp.MustCompile("^ROLLBACK_")

	for _, e := range events.StackEvents {
		if (failRe.MatchString(*e.ResourceStatus) || rollbackRe.MatchString(*e.ResourceStatus)) &&
			e.Timestamp.After(afterTime) && e.ResourceStatusReason != nil {
			failures = append(failures, *e.ResourceStatusReason)
		}
	}

	return failures, nil
}

// getLastCfEventTimestamp takes the first event in a list
// of events ordered from the newest to the oldest
// and extracts timestamp from it
// LastUpdatedTime only provides last >successful< updated time
func getLastCfEventTimestamp(stackName string, conn *cloudformation.CloudFormation) (
	*time.Time, error) {
	output, err := conn.DescribeStackEvents(&cloudformation.DescribeStackEventsInput{
		StackName: aws.String(stackName),
	})
	if err != nil {
		return nil, err
	}

	return output.StackEvents[0].Timestamp, nil
}

func descStack(svc *awscf.CloudFormation, stackName string) {
	input := &awscf.DescribeStackEventsInput{
		StackName: aws.String(stackName),
	}
	resp, err := svc.DescribeStackEvents(input)
	if err != nil {
		log.Fatal(err)
	}

	if len(resp.StackEvents) > 0 {
		log.Println(awsutil.StringValue(resp.StackEvents[0]))
	}
}

func runDescribeStackEevntsQuery(svc *cloudformation.CloudFormation, params *cloudformation.DescribeStackEventsInput) []*cloudformation.StackEvent {
	resp, err := svc.DescribeStackEvents(params)

	if err != nil {
		if awsErr, ok := err.(awserr.Error); ok {
			// Generic AWS error with Code, Message, and original error (if any)
			fmt.Println(awsErr.Code(), awsErr.Message(), awsErr.OrigErr())
			if reqErr, ok := err.(awserr.RequestFailure); ok {
				// A service error occurred
				fmt.Println(reqErr.Code(), reqErr.Message(), reqErr.StatusCode(), reqErr.RequestID())
			}
		} else {
			// This case should never be hit, the SDK should always return an
			// error which satisfies the awserr.Error interface.
			fmt.Println(err.Error())
		}
	}

	return resp.StackEvents
}

func displayProgress(stack string, CloudFormation *cloudformation.CloudFormation, isDeleting bool) error {
	res, err := CloudFormation.DescribeStackEvents(&cloudformation.DescribeStackEventsInput{
		StackName: aws.String(stack),
	})

	if err != nil {
		return err
	}

	for _, event := range res.StackEvents {
		if events[*event.EventId] == true {
			continue
		}

		events[*event.EventId] = true

		// Log all CREATE_FAILED to display and MixPanel
		if !isDeleting && *event.ResourceStatus == "CREATE_FAILED" {
			msg := fmt.Sprintf("Failed %s: %s", *event.ResourceType, *event.ResourceStatusReason)
			fmt.Println(msg)
			sendMixpanelEvent("convox-install-error", msg)
		}

		name := friendlyName(*event.ResourceType)

		if name == "" {
			continue
		}

		switch *event.ResourceStatus {
		case "CREATE_IN_PROGRESS":
		case "CREATE_COMPLETE":
			if !isDeleting {
				id := *event.PhysicalResourceId

				if strings.HasPrefix(id, "arn:") {
					id = *event.LogicalResourceId
				}

				fmt.Printf("Created %s: %s\n", name, id)
			}
		case "CREATE_FAILED":
		case "DELETE_IN_PROGRESS":
		case "DELETE_COMPLETE":
			id := *event.PhysicalResourceId

			if strings.HasPrefix(id, "arn:") {
				id = *event.LogicalResourceId
			}

			fmt.Printf("Deleted %s: %s\n", name, id)
		case "DELETE_SKIPPED":
			id := *event.PhysicalResourceId

			if strings.HasPrefix(id, "arn:") {
				id = *event.LogicalResourceId
			}

			fmt.Printf("Skipped %s: %s\n", name, id)
		case "DELETE_FAILED":
			return fmt.Errorf("stack deletion failed")
		case "ROLLBACK_IN_PROGRESS", "ROLLBACK_COMPLETE":
		case "UPDATE_IN_PROGRESS", "UPDATE_COMPLETE", "UPDATE_COMPLETE_CLEANUP_IN_PROGRESS", "UPDATE_FAILED", "UPDATE_ROLLBACK_IN_PROGRESS", "UPDATE_ROLLBACK_COMPLETE", "UPDATE_ROLLBACK_FAILED":
		default:
			return fmt.Errorf("Unhandled status: %s\n", *event.ResourceStatus)
		}
	}

	return nil
}

// describeRackStacks uses credentials to describe CF service, app and rack stacks that belong to the rack name and region
func describeRackStacks(rackName, distinctId string, CF *cloudformation.CloudFormation) (Stacks, error) {
	res, err := CF.DescribeStacks(&cloudformation.DescribeStacksInput{})
	if err != nil {
		return Stacks{}, err
	}

	apps := []Stack{}
	rack := []Stack{}
	services := []Stack{}

	for _, stack := range res.Stacks {
		events := map[string]string{}
		outputs := map[string]string{}
		tags := map[string]string{}

		for _, output := range stack.Outputs {
			outputs[*output.OutputKey] = *output.OutputValue
		}

		for _, tag := range stack.Tags {
			tags[*tag.Key] = *tag.Value
		}

		name := tags["Name"]
		if name == "" {
			name = *stack.StackName
		}

		buckets := []string{}

		rres, err := CF.DescribeStackResources(&cloudformation.DescribeStackResourcesInput{
			StackName: stack.StackId,
		})
		if err != nil {
			return Stacks{}, err
		}

		for _, resource := range rres.StackResources {
			if *resource.ResourceType == "AWS::S3::Bucket" {
				if resource.PhysicalResourceId != nil {
					buckets = append(buckets, *resource.PhysicalResourceId)
				}
			}
		}

		eres, err := CF.DescribeStackEvents(&cloudformation.DescribeStackEventsInput{
			StackName: stack.StackId,
		})
		if err != nil {
			return Stacks{}, err
		}

		for _, event := range eres.StackEvents {
			if strings.HasSuffix(*event.ResourceStatus, "FAILED") {
				events[*event.LogicalResourceId] = *event.ResourceStatusReason
			}
		}

		s := Stack{
			Name:      name,
			StackName: *stack.StackName,
			Status:    *stack.StackStatus,
			Type:      tags["Type"],

			Buckets: buckets,
			Events:  events,
			Outputs: outputs,
		}

		// collect stacks that are explicitly related to the rack
		if tags["Rack"] == rackName {
			switch tags["Type"] {
			case "app":
				apps = append(apps, s)
			case "service":
				services = append(services, s)
			}
		}

		// collect stack that is explicitly the rack
		if *stack.StackName == rackName && outputs["Dashboard"] != "" {
			rack = append(rack, s)
		}
	}

	return Stacks{
		Apps:     apps,
		Rack:     rack,
		Services: services,
	}, nil
}