[BUG] m3db backup_time can not be set

[markush81]

Describe the bug

Setting backup_time for m3db fails

│ Error: calling Post /cloud/project/ef39d2fc88aa4227ba3e4f71abb11d57/database/m3db with params &{Backups:0x140005b6960 Description:default Disk:{Type: Size:160} IPRestrictions:[{Description:Internal ovh0 IP:10.20.0.0/16}] MaintenanceTime:00:00:00 NetworkId:f7d953f0-4ec0-4306-bfce-2f6aa1b7ae3c NodesPattern:{Flavor:db1-7 Number:1 Region:DE} Plan:essential SubnetId:0221cad6-9ed1-4937-939e-41660235fba3 Version:1.5}:
│ 	 "OVHcloud API error (status code 400): Client::BadRequest::BackupTimeNotAvailable: \"backup time definition is not available for engine m3db\" (X-OVH-Query-Id: EU.ext-2.670e4aac.2420636.934c90bd42a47f8f64d1278c4d5e3abd)"
│ 
│   with ovh_cloud_project_database.m3db["default"],
│   on m3db.tf line 1, in resource "ovh_cloud_project_database" "m3db":
│    1: resource "ovh_cloud_project_database" "m3db" {

Terraform Version

Terraform v1.9.3
on darwin_arm64
+ provider registry.terraform.io/ovh/ovh v0.51.0

Your version of Terraform is out of date! The latest version
is 1.9.7. You can update by downloading from https://www.terraform.io/downloads.html

OVH Terraform Provider Version

+ provider registry.terraform.io/ovh/ovh v0.51.0

Affected Resource(s)

Please list the resources as a list, for example:

• ovh_cloud_project_database

Terraform Configuration Files

  + resource "ovh_cloud_project_database" "m3db" {
      + advanced_configuration = (known after apply)
      + backup_regions         = [
          + "DE",
          + "GRA",
        ]
      + backup_time            = "05:00:00"
      + created_at             = (known after apply)
      + description            = "default"
      + disk_size              = 160
      + disk_type              = (known after apply)
      + endpoints              = (known after apply)
      + engine                 = "m3db"
      + flavor                 = "db1-7"
      + id                     = (known after apply)
      + maintenance_time       = "00:00:00"
      + network_type           = (known after apply)
      + plan                   = "essential"
      + service_name           = "..."
      + status                 = (known after apply)
      + version                = "1.5"

      + ip_restrictions {
          + description = "Internal ovh0"
          + ip          = "..."
          + status      = (known after apply)
        }

      + nodes {
          + network_id = "..."
          + region     = "DE"
          + subnet_id  = "..."
        }
    }

Expected Behavior

Backup Time can be set.

Actual Behavior

│ Error: calling Post /cloud/project/ef39d2fc88aa4227ba3e4f71abb11d57/database/m3db with params &{Backups:0x140005b6960 Description:default Disk:{Type: Size:160} IPRestrictions:[{Description:Internal ovh0 IP:10.20.0.0/16}] MaintenanceTime:00:00:00 NetworkId:f7d953f0-4ec0-4306-bfce-2f6aa1b7ae3c NodesPattern:{Flavor:db1-7 Number:1 Region:DE} Plan:essential SubnetId:0221cad6-9ed1-4937-939e-41660235fba3 Version:1.5}:
│ 	 "OVHcloud API error (status code 400): Client::BadRequest::BackupTimeNotAvailable: \"backup time definition is not available for engine m3db\" (X-OVH-Query-Id: EU.ext-2.670e4aac.2420636.934c90bd42a47f8f64d1278c4d5e3abd)"
│ 
│   with ovh_cloud_project_database.m3db["default"],
│   on m3db.tf line 1, in resource "ovh_cloud_project_database" "m3db":
│    1: resource "ovh_cloud_project_database" "m3db" {

Steps to Reproduce

Please list the steps required to reproduce the issue, for example:

1. terraform apply

[amstuta]

Hello @markush81, this limitation comes from the API where backup_time cannot be set on some engines. We'll fix the documentation with the list of these engines, and add a check in the schema so that the error is returned without having to call the API.