[英]aws cloudformation template sns sqs
I've defined an SNS topic, an SQS queue, and an SNS subscription resource in a Cloudformation stack.我在 Cloudformation 堆栈中定义了一个 SNS 主题、一个 SQS 队列和一个 SNS 订阅资源。 All three are in the same stack, same region, and same AWS account.这三个都在同一个堆栈、同一个区域和同一个 AWS 账户中。
Resources:
SqsQueue:
Type: AWS::SQS::Queue
Properties:
QueueName: 'some-queue'
SnsTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: 'some-topic'
SnsSubscription:
Type: AWS::SNS::Subscription
Properties:
Endpoint: !GetAtt [SqsQueue, Arn]
Protocol: sqs
TopicArn: !Ref SnsTopic
When I run the stack, all three resources are created successfully, but when I publish a message from SNS, it's never received by the SQS queue.当我运行堆栈时,所有三个资源都已成功创建,但是当我从 SNS 发布消息时,SQS 队列从未收到它。
I've been following this link ( https://aws.amazon.com/premiumsupport/knowledge-center/sqs-sns-subscribe-cloudformation/ ) and to my knowledge I've done everything I've needed to.我一直在关注这个链接( https://aws.amazon.com/premiumsupport/knowledge-center/sqs-sns-subscribe-cloudformation/ ),据我所知,我已经完成了我需要做的一切。 What else am I missing?我还缺少什么?
Thanks!谢谢!
Additional info附加信息
If I delete the subscription that Cloudformation created via the console and then create a new one via the console, messages are published fine.如果我删除 Cloudformation 通过控制台创建的订阅,然后通过控制台创建一个新订阅,则可以正常发布消息。 So it must be something incorrect about the subscription.所以订阅一定有问题。
I used the AWS CLI to compare the properties of the subscription created by the Cloudformation template to the one created by the console.我使用 AWS CLI 将 Cloudformation 模板创建的订阅属性与控制台创建的属性进行比较。 They are the exact same.它们完全相同。
You need to add a policy to allow the SNS topic to publish to your queue.您需要添加策略以允许 SNS 主题发布到您的队列。 Something like this:像这样的东西:
SnsToQueuePolicy:
Type: AWS::SQS::QueuePolicy
Properties:
Queues:
- !Ref SqsQueue
PolicyDocument:
Version: '2012-10-17'
Statement:
- Sid: allow-sns-messages
Effect: Allow
Principal: '*'
Resource: !GetAtt SqsQueue.Arn
Action: SQS:SendMessage,
Condition:
ArnEquals:
aws:SourceArn: !Ref SnsTopic
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