aws_appmesh_route grpc_route match shouldn't be required field

[opteemister]

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Terraform CLI and Terraform AWS Provider Version

Terraform v0.13.5

• provider registry.terraform.io/hashicorp/aws v3.21.0
• provider registry.terraform.io/hashicorp/random v3.0.0

Affected Resource(s)

aws_appmesh_route

Terraform Configuration Files

resource "aws_appmesh_route" "grpc" {
name = "${var.service_name}-grpc-route"
mesh_name = var.app_mesh_name
virtual_router_name = aws_appmesh_virtual_router.main.name

spec {
grpc_route {
action {
weighted_target {
virtual_node = aws_appmesh_virtual_node.grpc.name
weight = 100
}
}
}
}
}

Expected Behavior

Apply without errors.

Actual Behavior

Error: Required attribute is not set. (match attribute for grpc_route block)

References

In AWS docs - https://docs.aws.amazon.com/app-mesh/latest/userguide/routes.html
Additional configuration for grpc_route -> match block is not required, but it is required in Terraform.

[ewbankkit]

@opteemister Thanks for raising this issue.
The API reference lists match as required.
I will investigate if this is being enforced.

[ewbankkit]

Via Terraform:

aws_appmesh_route.test: Creating...

Error: error creating App Mesh route: InvalidParameter: 1 validation error(s) found.
- missing required field, CreateRouteInput.Spec.GrpcRoute.Match.

If I create a route in the console without specifying a match:

$ aws --region us-west-2 appmesh describe-route --mesh-name test001 --virtual-router-name test001 --route-name test001
{
    "route": {
        "meshName": "test001",
        "routeName": "test001",
        "spec": {
            "grpcRoute": {
                "action": {
                    "weightedTargets": [
                        {
                            "virtualNode": "test001_2",
                            "weight": 1
                        }
                    ]
                },
                "match": {}
            },
            "priority": 42
        },
        "status": {
            "status": "ACTIVE"
        },
        "virtualRouterName": "test001"
    }
}

If I change the configuration to

  spec {
    grpc_route {
      match {}
    }
  }

aws_appmesh_route.test: Creating...

Error: error creating App Mesh route: InvalidParameter: 1 validation error(s) found.
- missing required field, CreateRouteInput.Spec.GrpcRoute.Match.

terraform-provider-aws/aws/structure.go

Line 5550 in e5e68dd

if vGrpcRouteMatch, ok := mGrpcRoute["match"].([]interface{}); ok && len(vGrpcRouteMatch) > 0 && vGrpcRouteMatch[0] != nil {

This has been released in version 3.24.0 of the Terraform AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

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