pulumi/sdk/dotnet/Pulumi/Deployment/Deployment_RootResource.cs
Anton Tayanovskyy 2223c6b8b9
Fix null exceptions when reading unknown outputs (#7762)
* Fix null exceptions when reading unknown outputs

* Fix test compilation

* Add a test reproducing the actual problem

* Revert the change in behavior that was not clearny an improvement

* Unique resource UUID

* Add a CHANGELOG entry
2021-08-17 09:30:54 -04:00

52 lines
1.8 KiB
C#

// Copyright 2016-2021, Pulumi Corporation
using System;
using System.Threading.Tasks;
using Pulumirpc;
namespace Pulumi
{
public partial class Deployment
{
private Task<string>? _rootResource;
private readonly object _rootResourceLock = new object();
/// <summary>
/// Returns a root resource URN that will automatically become the default parent of all
/// resources. This can be used to ensure that all resources without explicit parents are
/// parented to a common parent resource.
/// </summary>
/// <returns></returns>
internal async Task<string?> GetRootResourceAsync(string type)
{
// If we're calling this while creating the stack itself. No way to know its urn at
// this point.
if (type == Stack._rootPulumiStackTypeName)
return null;
lock (_rootResourceLock)
{
if (_rootResource == null)
{
var stack = InternalInstance.Stack ?? throw new InvalidOperationException($"Calling {nameof(GetRootResourceAsync)} before the stack was registered!");
_rootResource = SetRootResourceWorkerAsync(stack);
}
}
return await _rootResource.ConfigureAwait(false);
}
private async Task<string> SetRootResourceWorkerAsync(Stack stack)
{
var resUrn = await stack.Urn.GetValueAsync(whenUnknown: default!).ConfigureAwait(false);
await this.Engine.SetRootResourceAsync(new SetRootResourceRequest
{
Urn = resUrn,
}).ConfigureAwait(false);
var getResponse = await this.Engine.GetRootResourceAsync(new GetRootResourceRequest()).ConfigureAwait(false);
return getResponse.Urn;
}
}
}