Make smoke tests more lightweight

[tasdomas]

Currently smoke tests call tpi to provision machines with GPUs. This often runs into resource quotas.
The proposal runs PR tests provisioning smaller (m) machines and a test to provision machines with GPUS is
run on a fixed daily schedule on master.

[0x2b3bfa0]

Stretch goal: make also spot instance testing optional

terraform-provider-iterative/task/task_smoke_test.go

Line 103 in 970711e

Spot: common.SpotEnabled,

[dacbd]

lgtm

[0x2b3bfa0]

Note that k8s tests will always run on a GPU-enabled cluster; to avoid this, you may want to modify the following lines:

terraform-provider-iterative/.github/workflows/smoke.yml

Lines 106 to 112 in d587a7f

	az aks create \
	--resource-group="tpiSmokeTestCluster$GITHUB_RUN_ID" \
	--name="tpiSmokeTestCluster$GITHUB_RUN_ID" \
	--node-vm-size=Standard_NC6 \
	--node-count=1 \
	--aks-custom-headers=UseGPUDedicatedVHD=true \
	--generate-ssh-keys

See the collapsible at https://registry.terraform.io/providers/iterative/iterative/latest/docs/guides/testing-kubernetes#creating-a-test-cluster for more information:

terraform-provider-iterative/docs/guides/testing-kubernetes.md

Lines 46 to 50 in 89ff041

	az aks create \
	--resource-group testKubernetesResourceGroup \
	--name testKubernetesCluster \
	--node-vm-size Standard_A2_v2 \
	--node-count 1

[0x2b3bfa0]

Looks awesome to me! 🎉