Add support for terraform plugin framework

[turkenh]

What problem are you facing?

It looks like upjet cannot generate providers built using https://github.com/hashicorp/terraform-plugin-framework

See:

• https://github.com/upbound/upjet/issues/121
• https://github.com/upbound/upjet/pull/125#issuecomment-1298368158

How could Upjet help solve your problem?

Add support for https://github.com/hashicorp/terraform-plugin-framework

[turkenh]

We will most probably want to fix https://github.com/upbound/upjet/issues/131 before or together with this issue.

[prafull01]

Is there any ETA on this enhancement?

I have tried the workaround mentioned in this comment and the resource generation is successful.

However, it is causing a different issue. I have nested objects in the terraform schema as follows:

"serverless": schema.SingleNestedAttribute{
                Optional: true,
                PlanModifiers: []planmodifier.Object{
                    objectplanmodifier.UseStateForUnknown(),
                },
                Attributes: map[string]schema.Attribute{
                    "spend_limit": schema.Int64Attribute{
                        Required: true,
                        PlanModifiers: []planmodifier.Int64{
                            int64planmodifier.UseStateForUnknown(),
                        },
                        MarkdownDescription: "Spend limit in US cents",
                    },
                    "routing_id": schema.StringAttribute{
                        Computed: true,
                        PlanModifiers: []planmodifier.String{
                            stringplanmodifier.UseStateForUnknown(),
                        },
                    },
                },
}

The types.go generated has the array instead of object for this but terraform expects the object.

// +kubebuilder:validation:Optional
Serverless []ServerlessParameters `json:"serverless,omitempty" tf:"serverless,omitempty"`

I expect that the ServerlessParameters should be object not an array, this is causing issues in Crossplane controller I have built.

[zonybob]

Will the comment made on #131 affect this and potentially allow support for terraform plugin framework? https://github.com/crossplane/upjet/issues/131#issuecomment-1755484121

[zliang-akamai]

Hey @turkenh, as many TF providers starts migrating to the plugin framework, may we have some updates about this issue? Thanks!

[jeanduplessis]

@zliang-akamai the team is actively working on Plugin Framework support for Upjet. It's turning out to be more complex than integrating with the SDK. The current estimation is that it will be ready in early February.

[zliang-akamai]

@jeanduplessis, thank you and the team for the effort to support the plugin framework, and that's really a good news!

[jeanduplessis]

With the release of Upjet 1.1.0 we now support resources implemented using the Terraform Plugin Framework.