failed to create state file when provided

[VinozzZ]

I'm getting the following error when trying to use a porter bundle that has "state" provided in the manifest when running in the operator:
could not create a new gzip reader for the statefile: unexpected EOF
This is when using "state" to store off terraform tfstate files ex:

state:
  - name: tfstate
    path: terraform/terraform.tfstate
  - name: tfvars
    path: terraform/terraform.tfvars.json

This works when setting the tfstate file as a bundle output and using it that way.
Running this on beta.2 in the operator

originally reported by @sgettys

[sgettys]

Looks like how k8s mounts the /porter/state.tgz file there needs to be a check for the unexpected EOF. The state file will exist but be empty. Adding in fix and testing this now

[VinozzZ]

After some investigation from @sgettys , the problem is related to cnabio/cnab-go#266.
the k8s driver writes "null" file onto the volume that's used by invocation image which causes unexpectedEOF error. https://github.com/cnabio/cnab-go/blob/main/driver/kubernetes/kubernetes.go#L426
The reason why this is working with porter CLI is because docker-driver treats all files as tars. https://github.com/cnabio/cnab-go/blob/main/driver/docker/docker.go#L440

[VinozzZ]

The workaround fix in porter is completes: getporter/porter#2307

[carolynvs]

Can we close this issue or is there still something else that needs to happen?

[sgettys]

This should be complete