Unknown subnet 10.200.0.0/16 causing ERROR while creating firewall rules

[apoorv-chaudhary]

Hi,
Beginner here following the guide Provisioning Compute Resources

Following the steps of creating the VPC,
gcloud compute networks create kubernetes-the-hard-way --subnet-mode custom

and then creating a subnet,
gcloud compute networks subnets create kubernetes \ --network kubernetes-the-hard-way \ --range 10.240.0.0/24

the step to create internal firewall rules (below) fails because there is another subnet in the source ranges:
gcloud compute firewall-rules create kubernetes-the-hard-way-allow-internal \ --allow tcp,udp,icmp \ --network kubernetes-the-hard-way \ --source-ranges 10.240.0.0/24,10.200.0.0/16

The command above fails with the following message:
ERROR: (gcloud.compute.firewall-rules.create) unrecognized arguments: 10.200.0.0/16] To search the help text of gcloud commands, run: gcloud help -- SEARCH_TERMS

Didn't see any other mention of the 10.200.0.0/16 subnet before this point. Not sure if I missed something.

[tzujui]

Hi @apoorv-chaudhary I have the same question when I walkthrough the lab. The cluster CIDR range is mentioned in an older commit of the 3rd lab. a9cb5f7#diff-da1cd405cb4576bc83a993eccecff98de30acec2ba1f560c6bcb9adfb504e035L121
In the latest code, it's mentioned in the controller manager's unit file a9cb5f7#diff-b3f8a18dcc3baf86b82f34f69caf1aa08e18fb6c670d798a743bc5ac05d81d58R8
In your case, I think it might be a formatting error with the \
Hope this helps!