StackSettingsConfigValueYamlConverter does not support arrays

[ffMathy]

What happened?

I am trying to create a LocalWorkspace and use the settings from another existing Pulumi.stack.yaml file into this local workspace.

However, one of the settings has an array value. And when the LocalWorkspace then tries to deserialize that value, it fails because the StackSettingsConfigValueYamlConverter throws an exception if an array is encountered. It should be gracefully ignored.

Steps to reproduce

var iacWorkspace = await LocalWorkspace.CreateAsync(
    new InlineProgramArgs(
        "some-project-name",
        "some-stack",
        pulumiStack)
    {
        WorkDir = someProjectPath
    },
    cancellationToken);

var settings = await iacWorkspace.GetStackSettingsAsync("some-stack", cancellationToken);
//throws exception

With the following stack config:

config:
  aws:allowedAccountIds:
  - 1337

Expected Behavior

The array value is skipped during deserialization.

Actual Behavior

Unable to deserialize [Pulumi.Automation.StackSettingsConfigValue]. Expecting object if not plain string.

Output of pulumi about

No response

Additional context

No response

Contributing

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[Zaid-Ajaj]

Hi @ffMathy thanks a lot for filing the issue! I've been able to reproduce the problem and it was indeed far from ideal to throw an exception. I think that gracefully ignoring the value isn't enough as a solution so I've opened #11143 where we will JSON-ify the contents of the complex objects into the value of StackSettingsConfigValue so consumers can still access it.