title: question re terraform and github actions / secrets
body: <p>I am starting to learn terraform/github actions.  Is it possible to get TF to read Github secrets as part of the Github action ? For example ..</p>
  <p>My main.tf file creates an AWS EC2 instance, and, needs to install nginx using a provisioner.  in order to do that i need to provide my private/public key information to the provisoner for it to authentiate to the EC2 instance to install the app. I have created a github secret that contains my private key.</p>
  <p>At the moment the workflow keeps failing becuase i cannot get it to read the github secret that contains the private key info.</p>
  <p>How can i achieve this ?</p>
  <p>any advise would be most welcome !  thanks</p>