build

This Dockerfile extends the Crossplane Terraform Provider image and installs the Google Cloud CLI (gcloud).

Why do we need gcloud?

The gcloud CLI is required for the RAD Lab modules that call it in a local-exec command like modules/gen_ai/main.tf:

resource "null_resource" "ai_workbench_usermanaged_provisioning_state" {
  for_each = toset(google_notebooks_instance.ai_workbench_usermanaged[*].name)
  provisioner "local-exec" {
    command = "while [ \"$(gcloud notebooks instances list --location ${var.zone} --project ${local.project.project_id} --filter 'NAME:${each.value} AND STATE:ACTIVE' --format 'value(STATE)' | wc -l | xargs)\" != 1 ]; do echo \"${each.value} not active yet.\"; done"
  }
  depends_on = [google_notebooks_instance.ai_workbench_usermanaged]
}

What is the Crossplane Terraform Provider base image?

The provider-terraform image is defined in the Dockerfile in the upbound/provider-terraform repo. It uses Alpine Linux.

How do we install gcloud?

We can follow the installation instructions and Alpine Dockerfile to install the required dependencies and gcloud.

How do we maintain the image?

Set the version of provider-terraform and gcloud using the build arguments:

docker build \
  --build-arg=PROVIDER_TERRAFORM_VERSION=v0.15.0 \
  --build-arg=CLOUD_SDK_VERSION=475.0.0 \
  .