fix: azuredevops_serviceendpoint_kubernetes kubeconfig update failure and plugin crash

[mouellet]

All Submissions:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code follows the code style of this project.
• I ran lint checks locally prior to submission.
• Have you checked to ensure there aren't other open PRs for the same update/change?

What about the current behavior has changed?

Terraform now prevents showing sensitive data to log/console. The encoding with bcrypt of a kubeconfig file will often leads to no diff detected since bcrypt has a limit of only 72 bytes.

As for #619, this removes the hash attribut.

I also included a fix a plugin crash when the cluster_context attribut was not specified.

Issue Number: #613, #635

Does this introduce a change to go.mod, go.sum or vendor/?

• Yes
• No

Does this introduce a breaking change?

• Yes
• No

Remove the hash will not be a breaking change and no diff is shown on plan or apply

Any relevant logs, error output, etc?

Plugin crash log when the cluster_context attribut was not specified:

╷
│ Error: Plugin did not respond
│ 
│   with azuredevops_serviceendpoint_kubernetes.kube_config,
│   on main.tf line 24, in resource "azuredevops_serviceendpoint_kubernetes" "kube_config":
│   24: resource "azuredevops_serviceendpoint_kubernetes" "kube_config" {
│ 
│ The plugin encountered an error, and failed to respond to the plugin.(*GRPCProvider).ApplyResourceChange call. The plugin logs may contain more details.
╵

Stack trace from the terraform-provider-azuredevops_v0.0.1 plugin:

panic: interface conversion: interface {} is map[string]interface {}, not map[interface {}]interface {}

goroutine 32 [running]:
github.com/microsoft/terraform-provider-azuredevops/azuredevops/internal/service/serviceendpoint.expandServiceEndpointKubernetes(0x1b97600?)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/azuredevops/internal/service/serviceendpoint/resource_serviceendpoint_kubernetes.go:213 +0x13c9
github.com/microsoft/terraform-provider-azuredevops/azuredevops/internal/service/serviceendpoint.genServiceEndpointCreateFunc.func1(0x0?, {0x18a37a0?, 0xc000168d80})
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/azuredevops/internal/service/serviceendpoint/commons.go:167 +0x73
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).create(0x1b98ee0?, {0x1b98ee0?, 0xc0002ce150?}, 0xd?, {0x18a37a0?, 0xc000168d80?})
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema/resource.go:330 +0x178
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*Resource).Apply(0xc0004dbce0, {0x1b98ee0, 0xc0002ce150}, 0xc000793380, 0xc00011d700, {0x18a37a0, 0xc000168d80})
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema/resource.go:472 +0x83a
github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema.(*GRPCProviderServer).ApplyResourceChange(0xc000304018, {0x1b98e38?, 0xc00011f300?}, 0xc0000c79f0)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema/grpc_provider.go:1021 +0xe05
github.com/hashicorp/terraform-plugin-go/tfprotov5/tf5server.(*server).ApplyResourceChange(0xc0002326e0, {0x1b98ee0?, 0xc000511dd0?}, 0xc0008c21c0)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/github.com/hashicorp/terraform-plugin-go/tfprotov5/tf5server/server.go:812 +0x515
github.com/hashicorp/terraform-plugin-go/tfprotov5/internal/tfplugin5._Provider_ApplyResourceChange_Handler({0x1a01240?, 0xc0002326e0}, {0x1b98ee0, 0xc000511dd0}, 0xc0002b0600, 0x0)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/github.com/hashicorp/terraform-plugin-go/tfprotov5/internal/tfplugin5/tfplugin5_grpc.pb.go:385 +0x170
google.golang.org/grpc.(*Server).processUnaryRPC(0xc000138a80, {0x1b9c938, 0xc00031b860}, 0xc000805b00, 0xc00021bbc0, 0x20d9260, 0x0)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/google.golang.org/grpc/server.go:1282 +0xccf
google.golang.org/grpc.(*Server).handleStream(0xc000138a80, {0x1b9c938, 0xc00031b860}, 0xc000805b00, 0x0)
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/google.golang.org/grpc/server.go:1619 +0xa2f
google.golang.org/grpc.(*Server).serveStreams.func1.2()
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/google.golang.org/grpc/server.go:921 +0x98
created by google.golang.org/grpc.(*Server).serveStreams.func1
	/Users/mouellet/workspace/mouellet/terraform-provider-azuredevops/vendor/google.golang.org/grpc/server.go:919 +0x28a

Error: The terraform-provider-azuredevops_v0.0.1 plugin crashed!

Other information

[xuzhang3]

=== RUN   TestAccServiceEndpointKubernetesForAzureSubscriptionCreateAndUpdate
--- SKIP: TestAccServiceEndpointKubernetesForAzureSubscriptionCreateAndUpdate (0.00s)
=== RUN   TestAccServiceEndpointKubernetesForServiceAccountCreateAndUpdate
=== PAUSE TestAccServiceEndpointKubernetesForServiceAccountCreateAndUpdate
=== RUN   TestAccServiceEndpointKubernetesForKubeconfigCreateAndUpdate
=== PAUSE TestAccServiceEndpointKubernetesForKubeconfigCreateAndUpdate
=== CONT  TestAccServiceEndpointKubernetesForServiceAccountCreateAndUpdate
=== CONT  TestAccServiceEndpointKubernetesForKubeconfigCreateAndUpdate
--- PASS: TestAccServiceEndpointKubernetesForServiceAccountCreateAndUpdate (139.90s)
--- PASS: TestAccServiceEndpointKubernetesForKubeconfigCreateAndUpdate (169.79s)
PASS
ok      github.com/microsoft/terraform-provider-azuredevops/azuredevops/internal/acceptancetests        173.377s

[xuzhang3]

@mouellet LGTM