BigAnimal spec/module - add witness_groups option

edbterraform/data/templates/aws/biganimal.tf.j2

@@ -11,6 +11,7 @@ module "biganimal" {
   cluster_name       = module.spec.base.tags.cluster_name
   password           = each.value.password
   data_groups        = each.value.data_groups
+  witness_groups     = each.value.witness_groups
   service_cidrblocks = local.biganimal_service_cidrblocks
   machine_cidrblocks = local.machine_cidrblocks
 

edbterraform/data/templates/azure/biganimal.tf.j2

@@ -11,6 +11,7 @@ module "biganimal" {
   cluster_name       = module.spec.base.tags.cluster_name
   password           = each.value.password
   data_groups        = each.value.data_groups
+  witness_groups     = each.value.witness_groups
   service_cidrblocks = local.biganimal_service_cidrblocks
   machine_cidrblocks = local.machine_cidrblocks
 

edbterraform/data/templates/gcloud/biganimal.tf.j2

@@ -11,6 +11,7 @@ module "biganimal" {
   cluster_name       = module.spec.base.tags.cluster_name
   password           = each.value.password
   data_groups        = each.value.data_groups
+  witness_groups     = each.value.witness_groups
   service_cidrblocks = local.biganimal_service_cidrblocks
   machine_cidrblocks = local.machine_cidrblocks
 

edbterraform/data/terraform/aws/modules/biganimal/variables.tf

@@ -102,6 +102,39 @@ variable data_groups {
   }
 }
 
+variable "witness_groups" {
+  description = "A single witness node is needed when using 2 data groups. It can be in a different cloud provider but cannot be in the same region as the data groups when using the same provider."
+  default = {}
+  nullable = false
+  type = map(object({
+    region = string
+    cloud_service_provider = string
+    maintenance_window = optional(object({
+      is_enabled = bool
+      start_day = number
+      start_time = string
+    }), {
+      is_enabled = false
+      start_day = 0
+      start_time = "00:00"
+    })
+  }))
+
+  validation {
+    condition = (
+      var.witness_groups == {} ||
+      var.witness_groups == null ||
+      alltrue([for k, v in var.witness_groups: v.maintenance_window.is_enabled == true || v.maintenance_window.start_day == 0 && v.maintenance_window.start_time == "00:00"])
+    )
+    error_message = (
+      <<-EOT
+      When maintenance window is disabled, start day and start time must be 0
+      # https://github.com/EnterpriseDB/terraform-provider-biganimal/issues/491
+      EOT
+    )
+  }
+}
+
 variable "project" {
   type = object({
     id = optional(string)

edbterraform/data/terraform/aws/modules/specification/variables.tf

@@ -193,6 +193,10 @@ variable "spec" {
         })))
         allowed_machines = optional(list(string))
       })))
+      witness_groups = optional(map(object({
+        region = string
+        cloud_service_provider = string
+      })), {})
       tags = optional(map(string), {})
     })), {})
     kubernetes = optional(map(object({

edbterraform/data/terraform/azure/modules/biganimal/variables.tf

@@ -102,6 +102,39 @@ variable data_groups {
   }
 }
 
+variable "witness_groups" {
+  description = "A single witness node is needed when using 2 data groups. It can be in a different cloud provider but cannot be in the same region as the data groups when using the same provider."
+  default = {}
+  nullable = false
+  type = map(object({
+    region = string
+    cloud_service_provider = string
+    maintenance_window = optional(object({
+      is_enabled = bool
+      start_day = number
+      start_time = string
+    }), {
+      is_enabled = false
+      start_day = 0
+      start_time = "00:00"
+    })
+  }))
+
+  validation {
+    condition = (
+      var.witness_groups == {} ||
+      var.witness_groups == null ||
+      alltrue([for k, v in var.witness_groups: v.maintenance_window.is_enabled == true || v.maintenance_window.start_day == 0 && v.maintenance_window.start_time == "00:00"])
+    )
+    error_message = (
+      <<-EOT
+      When maintenance window is disabled, start day and start time must be 0
+      # https://github.com/EnterpriseDB/terraform-provider-biganimal/issues/491
+      EOT
+    )
+  }
+}
+
 variable "project" {
   type = object({
     id = optional(string)

edbterraform/data/terraform/azure/modules/specification/variables.tf

@@ -141,6 +141,10 @@ variable "spec" {
         })))
         allowed_machines = optional(list(string))
       })))
+      witness_groups = optional(map(object({
+        region = string
+        cloud_service_provider = string
+      })), {})
       tags = optional(map(string), {})
     })), {})
     kubernetes = optional(map(object({

edbterraform/data/terraform/gcloud/modules/biganimal/variables.tf

@@ -103,7 +103,36 @@ variable data_groups {
 }
 
 variable "witness_groups" {
-
+  description = "A single witness node is needed when using 2 data groups. It can be in a different cloud provider but cannot be in the same region as the data groups when using the same provider."
+  default = {}
+  nullable = false
+  type = map(object({
+    region = string
+    cloud_service_provider = string
+    maintenance_window = optional(object({
+      is_enabled = bool
+      start_day = number
+      start_time = string
+    }), {
+      is_enabled = false
+      start_day = 0
+      start_time = "00:00"
+    })
+  }))
+
+  validation {
+    condition = (
+      var.witness_groups == {} ||
+      var.witness_groups == null ||
+      alltrue([for k, v in var.witness_groups: v.maintenance_window.is_enabled == true || v.maintenance_window.start_day == 0 && v.maintenance_window.start_time == "00:00"])
+    )
+    error_message = (
+      <<-EOT
+      When maintenance window is disabled, start day and start time must be 0
+      # https://github.com/EnterpriseDB/terraform-provider-biganimal/issues/491
+      EOT
+    )
+  }
 }
 
 variable "project" {

edbterraform/data/terraform/gcloud/modules/specification/variables.tf

@@ -156,6 +156,10 @@ variable "spec" {
         })))
         allowed_machines = optional(list(string))
       })))
+      witness_groups = optional(map(object({
+        region = string
+        cloud_service_provider = string
+      })), {})
       tags = optional(map(string), {})
     })), {})
     kubernetes = optional(map(object({