Update examples/node_pool to include definition of the network ranges

[apeabody]

TL;DR

Update examples/node_pool to include definition of the network ranges. For example move

https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/blob/77d08e02d738c38a5c68987572ef506a987dd41e/test/fixtures/node_pool/network.tf#L49

to

https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/tree/77d08e02d738c38a5c68987572ef506a987dd41e/examples/node_pool

Expected behavior

No response

Observed behavior

No response

Terraform Configuration

N/A

Terraform Version

N/A

Additional information

No response

[morgante]

@apeabody We really want to reduce the use of variables over-time, actually. Ideally most examples should be self-contained and liberally include static values instead of variables.

[apeabody]

@morgante Agreed, this issue is the example isn't totally self-contained as that network range is defined in the test fixture. Thought?

[morgante]

The ideal fix would be moving the network creation from the fixture to the example. Eventually we want to get rid of fixtures entirely.

[apeabody]

SG - I updated the issue to align.