panic: interface conversion: interface {} is resource.PropertyMap, not string

[stack72]

pulumi:pulumi:Stack (argocd-dev):
    panic: interface conversion: interface {} is resource.PropertyMap, not string
    goroutine 68 [running]:
    github.com/pulumi/pulumi/sdk/v2/go/common/resource.PropertyValue.StringValue(...)
    	/home/travis/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/[email protected]/go/common/resource/properties.go:362
    github.com/pulumi/pulumi-kubernetes/provider/v2/pkg/provider.parseKubeconfigPropertyValue(0x266aae0, 0xc0004075f0, 0x275d654, 0xa, 0xc0001bf708)
    	/home/travis/gopath/src/github.com/pulumi/pulumi-kubernetes/provider/pkg/provider/util.go:85 +0x169
    github.com/pulumi/pulumi-kubernetes/provider/v2/pkg/provider.(*kubeProvider).DiffConfig(0xc0000e2f00, 0x2a63b40, 0xc000407560, 0xc0006aa0e0, 0xc0000e2f00, 0x251c101, 0xc0006a8480)
    	/home/travis/gopath/src/github.com/pulumi/pulumi-kubernetes/provider/pkg/provider/provider.go:290 +0x5d5
    github.com/pulumi/pulumi/sdk/v2/proto/go._ResourceProvider_DiffConfig_Handler.func1(0x2a63b40, 0xc000407560, 0x268f540, 0xc0006aa0e0, 0x26965c0, 0x3982808, 0x2a63b40, 0xc000407560)
    	/home/travis/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/[email protected]/proto/go/provider.pb.go:1773 +0x86
    github.com/grpc-ecosystem/grpc-opentracing/go/otgrpc.OpenTracingServerInterceptor.func1(0x2a63b40, 0xc000406300, 0x268f540, 0xc0006aa0e0, 0xc0004a4680, 0xc0004a46a0, 0x0, 0x0, 0x2a16720, 0xc0003eaa10)
    	/home/travis/gopath/pkg/mod/github.com/grpc-ecosystem/[email protected]/go/otgrpc/server.go:57 +0x2eb
    github.com/pulumi/pulumi/sdk/v2/proto/go._ResourceProvider_DiffConfig_Handler(0x26e1e40, 0xc0000e2f00, 0x2a63b40, 0xc000406300, 0xc000288180, 0xc0003c2c00, 0x2a63b40, 0xc000406300, 0xc0006c2000, 0xf76)
    	/home/travis/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/[email protected]/proto/go/provider.pb.go:1775 +0x14b
    google.golang.org/grpc.(*Server).processUnaryRPC(0xc0001ec680, 0x2a7a5e0, 0xc000093800, 0xc0008b0300, 0xc0002cde60, 0x393d830, 0x0, 0x0, 0x0)
    	/home/travis/gopath/pkg/mod/google.golang.org/[email protected]/server.go:1082 +0x50a
    google.golang.org/grpc.(*Server).handleStream(0xc0001ec680, 0x2a7a5e0, 0xc000093800, 0xc0008b0300, 0x0)
    	/home/travis/gopath/pkg/mod/google.golang.org/[email protected]/server.go:1405 +0xcc9
    google.golang.org/grpc.(*Server).serveStreams.func1.1(0xc000462550, 0xc0001ec680, 0x2a7a5e0, 0xc000093800, 0xc0008b0300)
    	/home/travis/gopath/pkg/mod/google.golang.org/[email protected]/server.go:746 +0xa1
    created by google.golang.org/grpc.(*Server).serveStreams.func1
    	/home/travis/gopath/pkg/mod/google.golang.org/[email protected]/server.go:744 +0xa1

[jaxxstorm]

@stack72 and I have both seen this on many Kubernetes resources with the latest provider.

To repro:

• deploy a new helm chart (or other resource) and do pulumi up - everything will be fine. The one we both deployed was argocd. You can see my repro code here
• make some modification, like a transformation. Rerun pulumi up. You get the above error

[lukehoban]

That stack trace I believe means you passed an object instead of a string to the kubeconfig input on new k8s.Provider.

Of course - it definitely should fail more cleanly, and arguably it should also accept an object as well as a string, but I expect you can workaround by calling JSON.stringify when you pass this in?

That explanation and stack trace don't appear related to the repro steps @jaxxstorm mentions above though - is it possible that those repro steps lead to a different error? (or that they are not actually the exact repro steps that led here?)

[EvanBoyle]

I fixed the panic via #1373 by making the provider handle kubeconfig specified as either string or kubeconfig.

The error happens during DiffConfig deserializing existing kubeconfig that was originally specified as an object. Our EKS library makes it very easy to get into this situation by specifying kubeconfig type as any. Is this intentional or can we tighten this up?

[EvanBoyle]

I opened this issue to track improving the EKS typing for Cluster.kubeconfig pulumi/pulumi-eks#462