feat: added support to restore DB from backup id using variable backup_crn (#136)

Author: Ak-sky

README.md

@@ -83,6 +83,7 @@ You need the following permissions to run this module.
 | <a name="input_access_tags"></a> [access\_tags](#input\_access\_tags) | A list of access tags to apply to the rabbitmq instance created by the module, see https://cloud.ibm.com/docs/account?topic=account-access-tags-tutorial for more details | `list(string)` | `[]` | no |
 | <a name="input_admin_pass"></a> [admin\_pass](#input\_admin\_pass) | The password for the database administrator. If the admin password is null then the admin user ID cannot be accessed. More users can be specified in a user block. | `string` | `null` | no |
 | <a name="input_auto_scaling"></a> [auto\_scaling](#input\_auto\_scaling) | Optional rules to allow the database to increase resources in response to usage. Only a single autoscaling block is allowed. Make sure you understand the effects of autoscaling, especially for production environments. See https://cloud.ibm.com/docs/messages-for-rabbitmq?topic=messages-for-rabbitmq-autoscaling in the IBM Cloud Docs. | <pre>object({<br>    disk = object({<br>      capacity_enabled             = optional(bool, false)<br>      free_space_less_than_percent = optional(number, 10)<br>      io_above_percent             = optional(number, 90)<br>      io_enabled                   = optional(bool, false)<br>      io_over_period               = optional(string, "15m")<br>      rate_increase_percent        = optional(number, 10)<br>      rate_limit_mb_per_member     = optional(number, 3670016)<br>      rate_period_seconds          = optional(number, 900)<br>      rate_units                   = optional(string, "mb")<br>    })<br>    memory = object({<br>      io_above_percent         = optional(number, 90)<br>      io_enabled               = optional(bool, false)<br>      io_over_period           = optional(string, "15m")<br>      rate_increase_percent    = optional(number, 10)<br>      rate_limit_mb_per_member = optional(number, 114688)<br>      rate_period_seconds      = optional(number, 900)<br>      rate_units               = optional(string, "mb")<br>    })<br>  })</pre> | `null` | no |
+| <a name="input_backup_crn"></a> [backup\_crn](#input\_backup\_crn) | The CRN of a backup resource to restore from. The backup is created by a database deployment with the same service ID. The backup is loaded after provisioning and the new deployment starts up that uses that data. A backup CRN is in the format crn:v1:<…>:backup:. If omitted, the database is provisioned empty. | `string` | `null` | no |
 | <a name="input_backup_encryption_key_crn"></a> [backup\_encryption\_key\_crn](#input\_backup\_encryption\_key\_crn) | The CRN of a Key Protect key, that you want to use for encrypting disk that holds deployment backups. Only used if var.kms\_encryption\_enabled is set to true. If no value is passed here, the value passed for the 'kms\_key\_crn' variable is used, unless 'use\_default\_backup\_encryption\_key' is set to 'true'. BYOK for backups is available only in US regions us-south and us-east, and eu-de. Only keys in the us-south and eu-de are durable to region failures. To ensure that your backups are available even if a region failure occurs, you must use a key from us-south or eu-de. Take note that Hyper Protect Crypto Services for IBM Cloud® Databases backups is not currently supported, so if no value is passed here, but a HPCS value is passed for var.kms\_key\_crn, databases backup encryption will use the default encryption keys. | `string` | `null` | no |
 | <a name="input_cbr_rules"></a> [cbr\_rules](#input\_cbr\_rules) | (Optional, list) List of CBR rules to create | <pre>list(object({<br>    description = string<br>    account_id  = string<br>    rule_contexts = list(object({<br>      attributes = optional(list(object({<br>        name  = string<br>        value = string<br>    }))) }))<br>    enforcement_mode = string<br>  }))</pre> | `[]` | no |
 | <a name="input_cpu_count"></a> [cpu\_count](#input\_cpu\_count) | Allocated dedicated CPU per member. For shared CPU, set to 0. For more information, see https://cloud.ibm.com/docs/messages-for-rabbitmq?topic=messages-for-rabbitmq-resources-scaling | `number` | `0` | no |

main.tf

@@ -55,6 +55,7 @@ resource "ibm_database" "rabbitmq_database" {
   key_protect_key           = var.kms_key_crn
   backup_encryption_key_crn = local.backup_encryption_key_crn
   adminpassword             = var.admin_pass
+  backup_id                 = var.backup_crn
 
   dynamic "users" {
     for_each = nonsensitive(var.users != null ? var.users : [])

modules/fscloud/README.md

@@ -33,6 +33,7 @@ No resources.
 | <a name="input_access_tags"></a> [access\_tags](#input\_access\_tags) | A list of access tags to apply to the rabbitmq instance created by the module, see https://cloud.ibm.com/docs/account?topic=account-access-tags-tutorial for more details | `list(string)` | `[]` | no |
 | <a name="input_admin_pass"></a> [admin\_pass](#input\_admin\_pass) | The password for the database administrator. If the admin password is null then the admin user ID cannot be accessed. More users can be specified in a user block. | `string` | `null` | no |
 | <a name="input_auto_scaling"></a> [auto\_scaling](#input\_auto\_scaling) | Optional rules to allow the database to increase resources in response to usage. Only a single autoscaling block is allowed. Make sure you understand the effects of autoscaling, especially for production environments. See https://cloud.ibm.com/docs/messages-for-rabbitmq?topic=messages-for-rabbitmq-autoscaling in the IBM Cloud Docs. | <pre>object({<br>    disk = object({<br>      capacity_enabled             = optional(bool, false)<br>      free_space_less_than_percent = optional(number, 10)<br>      io_above_percent             = optional(number, 90)<br>      io_enabled                   = optional(bool, false)<br>      io_over_period               = optional(string, "15m")<br>      rate_increase_percent        = optional(number, 10)<br>      rate_limit_mb_per_member     = optional(number, 3670016)<br>      rate_period_seconds          = optional(number, 900)<br>      rate_units                   = optional(string, "mb")<br>    })<br>    memory = object({<br>      io_above_percent         = optional(number, 90)<br>      io_enabled               = optional(bool, false)<br>      io_over_period           = optional(string, "15m")<br>      rate_increase_percent    = optional(number, 10)<br>      rate_limit_mb_per_member = optional(number, 114688)<br>      rate_period_seconds      = optional(number, 900)<br>      rate_units               = optional(string, "mb")<br>    })<br>  })</pre> | `null` | no |
+| <a name="input_backup_crn"></a> [backup\_crn](#input\_backup\_crn) | The CRN of a backup resource to restore from. The backup is created by a database deployment with the same service ID. The backup is loaded after provisioning and the new deployment starts up that uses that data. A backup CRN is in the format crn:v1:<…>:backup:. If omitted, the database is provisioned empty. | `string` | `null` | no |
 | <a name="input_cbr_rules"></a> [cbr\_rules](#input\_cbr\_rules) | (Optional, list) List of CBR rules to create | <pre>list(object({<br>    description = string<br>    account_id  = string<br>    rule_contexts = list(object({<br>      attributes = optional(list(object({<br>        name  = string<br>        value = string<br>    }))) }))<br>    enforcement_mode = string<br>  }))</pre> | `[]` | no |
 | <a name="input_cpu_count"></a> [cpu\_count](#input\_cpu\_count) | Allocated dedicated CPU per member. For shared CPU, set to 0. For more information, see https://cloud.ibm.com/docs/messages-for-rabbitmq?topic=messages-for-rabbitmq-resources-scaling | `number` | `0` | no |
 | <a name="input_disk_mb"></a> [disk\_mb](#input\_disk\_mb) | Allocated disk per member. For more information, see https://cloud.ibm.com/docs/messages-for-rabbitmq?topic=messages-for-rabbitmq-resources-scaling | `number` | `1024` | no |

modules/fscloud/main.tf

@@ -18,4 +18,5 @@ module "rabbitmq_database" {
   cpu_count                  = var.cpu_count
   auto_scaling               = var.auto_scaling
   cbr_rules                  = var.cbr_rules
+  backup_crn                 = var.backup_crn
 }

modules/fscloud/variables.tf

@@ -139,3 +139,9 @@ variable "access_tags" {
   description = "A list of access tags to apply to the rabbitmq instance created by the module, see https://cloud.ibm.com/docs/account?topic=account-access-tags-tutorial for more details"
   default     = []
 }
+
+variable "backup_crn" {
+  type        = string
+  description = "The CRN of a backup resource to restore from. The backup is created by a database deployment with the same service ID. The backup is loaded after provisioning and the new deployment starts up that uses that data. A backup CRN is in the format crn:v1:<…>:backup:. If omitted, the database is provisioned empty."
+  default     = null
+}

variables.tf

@@ -226,3 +226,20 @@ variable "cbr_rules" {
   default     = []
   # Validation happens in the rule module
 }
+
+##############################################################
+# Backup
+##############################################################
+
+variable "backup_crn" {
+  type        = string
+  description = "The CRN of a backup resource to restore from. The backup is created by a database deployment with the same service ID. The backup is loaded after provisioning and the new deployment starts up that uses that data. A backup CRN is in the format crn:v1:<…>:backup:. If omitted, the database is provisioned empty."
+  default     = null
+  validation {
+    condition = anytrue([
+      var.backup_crn == null,
+      can(regex("^crn:.*:backup:", var.backup_crn))
+    ])
+    error_message = "backup_crn must be null OR starts with 'crn:' and contains ':backup:'"
+  }
+}