This module needs to support the newer Google provider 7.x

[twingate-blee]

TL;DR

Terraform has the error

│ Error: Failed to query available provider packages
│
│ Could not retrieve the list of available versions for provider hashicorp/google: no available releases match the given constraints >= 3.33.0, >= 3.83.0, >= 4.0.0, >= 4.25.0, >= 4.64.0, > 6.0.0, >= 6.0.0, >= 6.19.0, >= 6.31.0, < 7.0.0, 7.1.1, < 8.0.0
│
│ To see which modules are currently depending on hashicorp/google and what versions are specified, run the following command:
│     terraform providers

All of our modules have been updated. This one still has

    google = {
      source  = "hashicorp/google"
      version = ">= 6.0, < 7"
    }

Expected behavior

No response

Observed behavior

No response

Terraform Configuration

source         = "GoogleCloudPlatform/lb-http/google//modules/dynamic_backends"
  version        = "~> 13.1"

Terraform Version

Terraform v1.10.5

Terraform Provider Versions

+ provider registry.terraform.io/carlpett/sops v1.2.1
+ provider registry.terraform.io/hashicorp/google v7.1.1
+ provider registry.terraform.io/hashicorp/google-beta v7.1.1
+ provider registry.terraform.io/hashicorp/null v3.2.4
+ provider registry.terraform.io/hashicorp/random v3.7.2
+ provider registry.terraform.io/hashicorp/tls v4.1.0
+ provider registry.terraform.io/mrolla/circleci v0.6.1
+ provider registry.terraform.io/opsgenie/opsgenie v0.6.37
+ provider registry.terraform.io/twingate/twingate v3.4.0
+ provider registry.terraform.io/vancluever/acme v2.35.1

Additional information

No response

[erzz]

To expand (using 1.13.2 of terrraform)

Root cause:

1. root providers.tf pins google to version 7.2.0:

  my-app/terraform/providers.tf
    google = {
      source  = "hashicorp/google"
      version = "7.2.0"
    }

2. The lb-http module (pulled into .terraform/modules/...) still declares compatibility only with Google provider versions < 7 (e.g. ">= 6.0, < 7"). Multiple nested versions.tf files show:

    google = {
      source  = "hashicorp/google"
      version = ">= 6.0, < 7"
    }

3. Terraform tries to merge: module constraint (>=6.0,<7) + root constraint (=7.2.0). The intersection is empty. The lock file ends up with the contradictory composite string , and init fails.

[rjw57]

The point may well have been been made before but terraform's best practice guide for version requirements recommends that reusable modules only specify a minimum version requirement.

Reusable modules should constrain only their minimum allowed versions of Terraform and providers, such as >= 0.12.0. This helps avoid known incompatibilities, while allowing the user of the module flexibility to upgrade to newer versions of Terraform without altering the module.

(my emphasis)