The GOOGLE_PRJECT environment variable doesn't seem to work

[crystaldust]

Hi, I have tried running the example in README:

export GOOGLE_CREDENTIALS=$(cat ~/opshub-master-gce-credential.json)
docker run \
  -v '/tmp/data:/cncf/data'  \
  -e NAME='cross-cloud'  \
  -e CLOUD='gke'    \
  -e COMMAND='deploy'  \
  -e BACKEND='file'  \
  -e GOOGLE_REGION='us-central1' \
  -e GOOGLE_PROJECT='my-own-project'  \
  -e GOOGLE_CREDENTIALS="${GOOGLE_CREDENTIALS}" \
  -ti registry.cncf.ci/cncf/cross-cloud/provisioning:ci-stable-v0-2-0

With the GOOGLE_PROJECT env specified, but I got the error:

google_container_cluster.cncf: googleapi: Error 403: \
Required "container.clusters.create" permission for "projects/test-163823"., forbidden

I noticed that the project test-163823 is the default variable value clared at gke/input.tf, so when running provision.sh, it still takes the default value from gke/input.tf.