packer-cn/packer/test-fixtures/complex-recursed-env-user-var-file.json

{
  "variables": {
    "env_1": "{{ env `INTERPOLATE_TEST_ENV_1` }}",
    "env_2": "{{ env `INTERPOLATE_TEST_ENV_2` }}",
    "env_3": "{{ env `INTERPOLATE_TEST_ENV_3` }}",
    "env_4": "{{ env `INTERPOLATE_TEST_ENV_4` }}"
  },
    "builders": [{
        "type": "test"
    }]
}