What's the best way to clone an existing image from a source registry and push it to a destination registry?

[cristim]

So far I have a docker_registry_image with a build statement set to a path where I generate a Dockerfile.

My generated Dockerfile only includes a FROM statement set to the image from the source registry

The problem is the build context is altered as part of the first run and then I need to run Terraform twice. This isn't so nice for my users, as the image is always rewritten and each Terraform run needs to rebuild my image. For now I checked the current source image in to git, to avoid that error in the first run, but I'd like to avoid that.

Is there any better way to do this?

Here's what my code looks like:

LeanerCloud/terraform-aws-autospotting@d9ad5d0#diff-44cedb7989fb5db19755e1558d23537a04fef1839263fd123b246e7ce3eb5a89