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Description

Hello! When using packer on my repo it would be very useful to be able to "chdir" o a folder when execution packer build.

The idea is the same on Terraform: https://developer.hashicorp.com/terraform/cli/commands#switching-working-directory-with-chdir

Use Case(s)

My repo structure is as follows:

repo/
  Makefile
  packer/
    variables/
      variables.pkrvars.hcl
    frontend/
      packer.pkr.hcl
    backend/
      packer.pkr.hcl
 
  terraform/
    terraform stuff

I would like to be able to execute packer from the root of my repo, from a Makefile, to make it very easy to build my images.

Potential configuration

An example of execution would be, using my repo structure above:

packer init -chdir packer/frontend/packer.pkr.hcl
packer build -chdir packer/frontend/packer.pkr.hcl -var-file packer/variables/variables.pkrvars.hcl