docs: correct information regarding default instance types (#2028)

* doc: correct information regarding default instance types

Fixes #2027

* test: fix race with clearing maps

pkg/cloudprovider/aws/fake/ec2api.go

@@ -78,8 +78,14 @@ func (e *EC2API) Reset() {
 	e.CalledWithCreateFleetInput.Reset()
 	e.CalledWithCreateLaunchTemplateInput.Reset()
 	e.DescribeSpotPriceHistoryOutput.Reset()
-	e.Instances = sync.Map{}
-	e.LaunchTemplates = sync.Map{}
+	e.Instances.Range(func(k, v any) bool {
+		e.Instances.Delete(k)
+		return true
+	})
+	e.LaunchTemplates.Range(func(k, v any) bool {
+		e.LaunchTemplates.Delete(k)
+		return true
+	})
 	e.InsufficientCapacityPools.Reset()
 	e.NextError.Reset()
 }

website/content/en/preview/provisioner.md

@@ -109,12 +109,7 @@ Generally, instance types should be a list and not a single value. Leaving this
 
 Review [AWS instance types](https://aws.amazon.com/ec2/instance-types/).
 
-The default value includes all instance types with the exclusion of metal
-(non-virtualized),
-[non-HVM](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types.html),
-and GPU instances.
-
-View the full list of instance types with `aws ec2 describe-instance-types`.
+The default value includes most instance types with the exclusion of [non-HVM](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types.html).  The full list of supported instance types can be seen [here](../aws/instance-types/)
 
 **Example**