`alloydb_instance`: diff on `network_config.enable_public_ip`

[BBBmau]

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Terraform Version & Provider Version(s)

Terraform v1.9.8
on darwin_amd64

• provider registry.terraform.io/hashicorp/google v6.10.0
• provider registry.terraform.io/hashicorp/google-beta v6.10.0

Affected Resource(s)

google_alloydb_instance

Terraform Configuration

resource "google_alloydb_instance" "instance-2" {
  cluster       = google_alloydb_cluster.lab-cluster2.name
  instance_id   = "lab-cluster2-primary"
  instance_type = "PRIMARY"

  machine_config {
    cpu_count = 2
  }

  network_config {
    enable_public_ip = false
  }


  database_flags = {"password.enforce_complexity":"true"}

  lifecycle {
    ignore_changes = [ network_config ]
  }
}

Debug Output

# google_alloydb_instance.instance-2 will be updated in-place
  ~ resource "google_alloydb_instance" "instance-2" {
        id                           = "projects/hc-011e8fe1d3d5432786db758d105/locations/europe-west4/clusters/alloy-2/instances/lab-cluster2-primary"
        name                         = "projects/hc-011e8fe1d3d5432786db758d105/locations/europe-west4/clusters/alloy-2/instances/lab-cluster2-primary"
        # (19 unchanged attributes hidden)

      + network_config {
          + enable_public_ip = false
        }

        # (4 unchanged blocks hidden)
    }

Plan: 0 to add, 1 to change, 0 to destroy.

Expected Behavior

no diff should occur:

"network_config": []

Actual Behavior

we get a diff on network_config.enable_public_up:

# google_alloydb_instance.instance-2 will be updated in-place
  ~ resource "google_alloydb_instance" "instance-2" {
        id                           = "projects/hc-011e8fe1d3d5432786db758d105/locations/europe-west4/clusters/alloy-2/instances/lab-cluster2-primary"
        name                         = "projects/hc-011e8fe1d3d5432786db758d105/locations/europe-west4/clusters/alloy-2/instances/lab-cluster2-primary"
        # (19 unchanged attributes hidden)

      + network_config {
          + enable_public_ip = false
        }

        # (4 unchanged blocks hidden)
    }

Plan: 0 to add, 1 to change, 0 to destroy.

Steps to reproduce

1. terraform apply

Important Factoids

No response

References

No response

[ggtisc]

Hi @BBBmau

I tried to replicate this issue, but everything works as expected without diffs. Could you please try again and check if the error persists. Also you can do basic troubleshooting like restart your environment, re-authenticate, etc. This is the used code based on yours (please let me know if you are using something different, I just changed resources names):

resource "google_compute_network" "vpc_22197" {
  name = "vpc-22197"
  auto_create_subnetworks = false
}

resource "google_compute_global_address" "private_ip_address_22197" {
  name          = "private-ip-address-22197"
  purpose       = "VPC_PEERING"
  address_type  = "INTERNAL"
  prefix_length = 24
  network       = google_compute_network.vpc_22197.id
}

resource "google_service_networking_connection" "private_vpc_connection_22197" {
  network                 = google_compute_network.vpc_22197.id
  service                 = "servicenetworking.googleapis.com"
  reserved_peering_ranges = [google_compute_global_address.private_ip_address_22197.name]
}

resource "google_alloydb_cluster" "alloydb_cluster_22197" {
  cluster_id = "alloydb-cluster-22197"
  location   = "us-central1"
  depends_on = [google_service_networking_connection.private_vpc_connection_22197]

  network_config {
    network = google_compute_network.vpc_22197.id
  }

  initial_user {
    password = "something"
  }
}

resource "google_alloydb_instance" "alloydb_instance_22197" {
  cluster         = google_alloydb_cluster.alloydb_cluster_22197.name
  instance_id     = "alloydb-instance-22197"
  instance_type   = "PRIMARY"
  database_flags  = {"password.enforce_complexity":"true"}
  depends_on      = [google_service_networking_connection.private_vpc_connection_22197]

  machine_config {
    cpu_count = 2
  }

  network_config {
    enable_public_ip = false
  }

  lifecycle {
    ignore_changes = [ network_config ]
  }
}