Please I attempted deploying an OpenSwan VPN server to a virtual machine as highlighted in the Amazon Web Services in Action By Michael Wittig textbook. When I attempt creating the stack, it returns to rollback_in_progress.

aws cloudformation describe-stack-events --stack-name openvpn

Here is the remote repository: https://github.com/LaVie-environment/awsWebservices

I executed the command below with an expectation of creating the OpenSwan VPN server. aws cloudformation describe-stack-events --stack-name openvpn

CodePudding user response：

When your stack fails to deploy for the first time (“create” rather than “update”), it cannot actually roll back to a known/stable state. Therefore, the only option you have is to remove it altogether and deploy again.

Some hints:

• Although I also prefer the CLI in most cases, the Cloudformation UI is quite helpful in watching how your stack is created and, in case of errors, analyse what went wrong.

• If you have a very complex stack and/or you try a few things out, it’s sometimes more convenient to just deploy a part of your stack at first, because it’s easier to incrementally update a stack than creating and re-creating all over. Simply comment the building blocks you don’t need from the start and then uncomment them one by one.