How to use the pulumi.StringPtrOutput value as a pulumi string input for another resource?

[sheldonhull]

I need to use the generatedConfigMapName = configMapCreated.Metadata.Name() StringPtrOutput result of this resource and pass it back up the stack for the other resources I'm creating. I've broken up the deployment into seperate funcs, and when I designate the parameter type as configName pulumi.StringPtrOutput and try to use in a resource expecting pulumi.String() it won't allow this.

I need the autogenerated configmap name for HPA, Roles, and Deployment, but not sure how to get the pointer value as a pulumi.String for it to be used to correctly reference the configmap that was created.

I couldn't find any other examples than the https://github.com/pulumi/examples/blob/64631b889938d7cfdf7a35016c989c898fe4b070/kubernetes-go-configmap-rollout/main.go#L39 example, which doesn't show any type of conversion taking place.

Any tips?

Example Code

Creating configmap.

func ConfigMap(ctx *pulumi.Context, prov *kubernetes.Provider, configData *MyConfig) (generatedConfigMapName pulumi.StringPtrOutput, err error) {
 // configData.ServiceConfigMapName() = "myexternalapi-project-dev-configmap"
configMapCreated, err := corev1.NewConfigMap(ctx, configData.ServiceConfigMapName(), &corev1.ConfigMapArgs{
	Metadata: &metav1.ObjectMetaArgs{
		Labels: configData.AppPulumiStringMap(), // labels are set from configstruct.
	},
	Data: configMapped,
}, pulumi.Provider(prov))
return generatedConfigMapName, nil
}

Now I want to pass that into the deployment like this:

err = Deployment(ctx, renderProvider, &configData, configMapName)
if err != nil {
	return err
}

And inside use it:

func Deployment(ctx *pulumi.Context, prov *kubernetes.Provider, configData *MyConfig, configMapName pulumi.StringPtrOutput) error {

// ... lots of label/annotation code

// under podspec args:

		Volumes: corev1.VolumeArray{
						&corev1.VolumeArgs{
							Name: pulumi.String(configData.ServiceConfigDataVolumeName()), 
							ConfigMap: &corev1.ConfigMapVolumeSourceArgs{
								Name: configMapName, // 👈  This doesn't work as an input
							},
						},
}

EDIT: I mostly have them working except for the volume assignment now:

			&rbacv1.PolicyRuleArgs{
				ApiGroups: pulumi.StringArray{
					pulumi.String(""),
				},
				Resources: pulumi.StringArray{
					pulumi.String("configmaps"),
				},
				ResourceNames: pulumi.StringArray{
					cfgMap.Metadata.Name(),  // 👈 THIS cannot use cfgMap.Metadata.Name() (value of type pulumi.StringPtrOutput) as pulumi.StringInput value in array or slice literal: missing method ToStringOutput
				},
				Verbs: pulumi.StringArray{
					pulumi.String("get"),
					pulumi.String("watch"),
					pulumi.String("list"),
				},
			},
		},

The error for the last item is:

./main.go:513:26: cannot use cfgMap.Metadata.Name() (type pulumi.StringPtrOutput) as type pulumi.StringInput in slice literal:

        pulumi.StringPtrOutput does not implement pulumi.StringInput (missing ToStringOutput method)

error: an unhandled error occurred: program exited with non-zero exit code: 2

[sheldonhull]

For the last volume, the way to properly reference the resource is:

ResourceNames: pulumi.StringArray{
		// CfgMap.Metadata.Name(),. won't work
		cfgMap.Metadata.Name().Elem(), // 👈 DID WORK
	},

Thanks to @itay for the help.
It was mentioned that this is where the Go type system gets in the way for just working, but with this fix, I'm good to go for now. Thanks! 💯