Merge pull request #128 from Ontotext-AD/GDB-13344

[GDB-13344] Added ability to change the root ebs disk volume size

Author: simonzhekoff

CHANGELOG.md

@@ -1,6 +1,11 @@
 # GraphDB AWS Terraform Module Changelog
 
+## 2.6.0
+
+* Added support for changing the volume size of the instance root EBS volume.
+
 ## 2.5.0
+
 * Added support for managing Route 53 hosted zones and DNS records via external_dns_records module.
 * Enhanced KMS key and SNS topic configuration for Route 53 / CloudWatch availability alarms in us-east-1 to support encrypted alert delivery
 * Update GraphDB default version to [11.1.2](https://graphdb.ontotext.com/documentation/11.1/release-notes.html#graphdb-11-1-2)

README.md

@@ -155,6 +155,7 @@ Before you begin using this Terraform module, ensure you meet the following prer
 | ebs\_volume\_throughput | Throughput for the EBS volumes, used by the GraphDB nodes. | `number` | `250` | no |
 | ebs\_volume\_iops | IOPS for the EBS volumes, used by the GraphDB nodes. | `number` | `8000` | no |
 | ebs\_default\_kms\_key | KMS key used for ebs volume encryption. | `string` | `"alias/aws/ebs"` | no |
+| root\_ebs\_volume\_size | The size of the root EBS volume. | `number` | `30` | no |
 | prevent\_resource\_deletion | Defines if applicable resources should be protected from deletion or not | `bool` | `true` | no |
 | graphdb\_license\_path | Local path to a file, containing a GraphDB Enterprise license. | `string` | `null` | no |
 | graphdb\_admin\_password | Password for the 'admin' user in GraphDB. | `string` | `null` | no |
@@ -355,6 +356,13 @@ the following variables:
 prevent_resource_deletion = false
 ```
 
+** Changing instance root EBS volume size**
+
+By default the root EBS volume size is 30GB. You can change it with the following variable:
+```hcl
+root_ebs_volume_size = 100
+```
+
 **Backup**
 
 To enable deployment of the backup module, you need to enable the following flag:

main.tf

@@ -242,6 +242,7 @@ module "graphdb" {
   graphdb_node_count         = var.graphdb_node_count
   ec2_key_name               = var.ec2_key_name
   enable_detailed_monitoring = var.monitoring_enable_detailed_instance_monitoring
+  root_ebs_volume_size       = var.root_ebs_volume_size
 
   # Backup Configurations
 

modules/graphdb/main.tf

@@ -60,6 +60,16 @@ resource "aws_launch_template" "graphdb" {
     enabled = var.enable_detailed_monitoring
   }
 
+  block_device_mappings {
+    device_name = "/dev/sda1"
+    ebs {
+      volume_size           = var.root_ebs_volume_size
+      volume_type           = "gp3"
+      delete_on_termination = true
+      encrypted             = true
+    }
+  }
+
   vpc_security_group_ids = [
     aws_security_group.graphdb_security_group.id
   ]

modules/graphdb/variables.tf

@@ -425,3 +425,8 @@ variable "enable_asg_wait" {
   description = "Whether to enable waiting for ASG node readiness"
   type        = string
 }
+
+variable "root_ebs_volume_size" {
+  description = "The size of the root EBS volume."
+  type        = number
+}

variables.tf

@@ -412,6 +412,12 @@ variable "ebs_default_kms_key" {
   default     = "alias/aws/ebs"
 }
 
+variable "root_ebs_volume_size" {
+  description = "The size of the root EBS volume."
+  type        = number
+  default     = 30
+}
+
 variable "prevent_resource_deletion" {
   description = "Defines if applicable resources should be protected from deletion or not"
   type        = bool