Change await logic client to use target apiVersion on update (#1758)

Previously, the await logic used the previous apiVersion of a
resource to issue requests to the API server. In the case of
API changes, this could cause errors. Newer apiVersions should
be backward compatible, so switch to using the target apiVersion
of a resource instead.

CHANGELOG.md

@@ -3,6 +3,7 @@
 - [sdk/dotnet] Fix creation of CustomResources (https://github.com/pulumi/pulumi-kubernetes/pull/1741)
 - Always override namespace for helm release operations (https://github.com/pulumi/pulumi-kubernetes/pull/1747)
 - Add k8s client tuning settings to Provider (https://github.com/pulumi/pulumi-kubernetes/pull/1748)
+- Change await logic client to use target apiVersion on updates (https://github.com/pulumi/pulumi-kubernetes/pull/1758)
 
 ## 3.7.3 (September 30, 2021)
 - Use helm release's namespace on templates where namespace is left unspecified (https://github.com/pulumi/pulumi-kubernetes/pull/1733)

provider/pkg/await/await.go

@@ -1,4 +1,4 @@
-// Copyright 2016-2018, Pulumi Corporation.
+// Copyright 2016-2021, Pulumi Corporation.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@ package await
 import (
 	"context"
 	"fmt"
+
 	"github.com/pulumi/pulumi-kubernetes/provider/v3/pkg/clients"
 	"github.com/pulumi/pulumi-kubernetes/provider/v3/pkg/cluster"
 	"github.com/pulumi/pulumi-kubernetes/provider/v3/pkg/kinds"
@@ -353,7 +354,7 @@ func Update(c UpdateConfig) (*unstructured.Unstructured, error) {
 	// - [ ] Support server-side apply, when it comes out.
 	//
 
-	client, err := c.ClientSet.ResourceClient(c.Previous.GroupVersionKind(), c.Previous.GetNamespace())
+	client, err := c.ClientSet.ResourceClient(c.Inputs.GroupVersionKind(), c.Inputs.GetNamespace())
 	if err != nil {
 		return nil, err
 	}