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CloudFormation stack template failing to receive 1 resource signal during creation of EC2 instance

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Hello everyone,

I am trying to deploy a MATLAB VM using the official stack deployment method on the MATLAB Help Centre (through the provided GitHub repository). However, when I try to do this, the EC2 instance creation always fails with "Failed to receive 1 resource signal(s) within the specified duration". This whole process apparently takes only 10-20 minutes and I have tried waiting for 3 hours by increasing the timeout period but I still get CREATE_FAILED followed by rollback. What could possibly be happening here and how could I go about resolving it?

1 Answer
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The first place I would look is the network configuration of the subnet. You will need to provide a way for the cfn-signal to communicate to the CloudFormation endpoints. Here is an article on how to implement a VPC endpoint, Signaling AWS CloudFormation WaitConditions using AWS PrivateLink.

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answered 5 months ago

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