how to create gcp projects without default network using gcloud sdk

Question

For terraform there is an option "auto_create_network = false" to skip creation of a default net within a new project.

Is there also an option/flag for gcloud sdk / gcloud projects create (e.g. --skip-default-network)? Or must we use org policy constraints/compute.skipDefaultNetworkCreation (https://cloud.google.com/resource-manager/docs/organization-policy/org-policy-constraints)?

Answer 1

Terraform's solution is to delete the default network promptly after creation:

https://www.terraform.io/docs/providers/google/r/google_project.html#auto_create_network

Therefore, you:

• either use the org policy to never create it
• or (you do what Terraform does and) gcloud compute networks delete it after creation:

Example

Please test this in a sacrificial project to ensure it meets your needs

gcloud compute firewall-rules list \
--project=${PROJECT} \
--filter="network:/projects/${PROJECT}/global/networks/default" \
--format="value(name)"  \
| xargs gcloud compute firewall-rules delete \
--project=${PROJECT} \
--quiet

gcloud compute networks delete default \
--project=${PROJECT} \
--quiet