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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,7 @@ | ||
| region = "us-east-2" | ||
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| namespace = "eg" | ||
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| region = "us-east-2" | ||
| namespace = "eg" | ||
| environment = "ue2" | ||
| stage = "test" | ||
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| stage = "test" | ||
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| name = "example" | ||
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| create_sns_topic = true | ||
| enabled_standards = ["standards/aws-foundational-security-best-practices/v/1.0.0", "ruleset/cis-aws-foundations-benchmark/v/1.2.0"] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,12 @@ | ||
| provider "aws" { | ||
| region = var.region | ||
| } | ||
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| module "example" { | ||
| source = "../.." | ||
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| example = var.example | ||
| enabled_standards = var.enabled_standards | ||
| create_sns_topic = var.create_sns_topic | ||
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| context = module.this.context | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,8 @@ | ||
| output "id" { | ||
| description = "ID of the created example" | ||
| value = module.example.id | ||
| output "enabled_subscriptions" { | ||
| description = "Enabled subscriptions" | ||
| value = module.example.enabled_subscriptions | ||
| } | ||
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| output "example" { | ||
| description = "Output \"example\" from example module" | ||
| value = module.example.example | ||
| } | ||
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| output "random" { | ||
| description = "Output \"random\" from example module" | ||
| value = module.example.random | ||
| output "sns_topic" { | ||
| value = module.example.sns_topic | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,20 @@ | ||
| variable "example" { | ||
| #---------------------------------------------------------------------------------------------------------------------- | ||
| # REQUIRED VARIABLES | ||
| # The module expects values to be supplied for these paramaters. | ||
| #---------------------------------------------------------------------------------------------------------------------- | ||
| variable "region" { | ||
| type = string | ||
| description = "The value which will be passed to the example module" | ||
| description = "AWS region" | ||
| } | ||
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| variable "enabled_standards" { | ||
| description = "A list of standards to enable in the account" | ||
| type = list(string) | ||
| default = [] | ||
| } | ||
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| variable "create_sns_topic" { | ||
| description = "Flag to indicate whether an SNS topic should be created for notifications." | ||
| type = bool | ||
| default = false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,11 @@ | ||
| terraform { | ||
| required_version = ">= 0.12.0, < 0.14" | ||
| required_version = ">= 0.13.0" | ||
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| required_providers { | ||
| aws = { | ||
| source = "hashicorp/aws" | ||
| version = ">= 2" | ||
| } | ||
| local = "~> 1.2" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,80 @@ | ||
| resource "random_integer" "example" { | ||
| #----------------------------------------------------------------------------------------------------------------------- | ||
| # Subscribe the Acccount to Security Hub | ||
| #----------------------------------------------------------------------------------------------------------------------- | ||
| resource "aws_securityhub_account" "this" { | ||
| count = module.this.enabled ? 1 : 0 | ||
| } | ||
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| #----------------------------------------------------------------------------------------------------------------------- | ||
| # Optionally subscribe to Security Hub Standards | ||
| # https://docs.aws.amazon.com/securityhub/latest/userguide/securityhub-standards.html | ||
| #----------------------------------------------------------------------------------------------------------------------- | ||
| resource "aws_securityhub_standards_subscription" "this" { | ||
| for_each = local.enabled_standards_arns | ||
| depends_on = [aws_securityhub_account.this] | ||
| standards_arn = each.key | ||
| } | ||
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| #----------------------------------------------------------------------------------------------------------------------- | ||
| # Optionally configure Event Bridge Rules and SNS subscriptions | ||
| # https://docs.aws.amazon.com/securityhub/latest/userguide/securityhub-cwe-integration-types.html | ||
| #----------------------------------------------------------------------------------------------------------------------- | ||
| module "sns_topic" { | ||
| source = "cloudposse/sns-topic/aws" | ||
| version = "0.9.0" | ||
| count = local.create_sns_topic ? 1 : 0 | ||
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| attributes = ["securityhub"] | ||
| subscribers = {} | ||
| sqs_dlq_enabled = false | ||
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| context = module.this.context | ||
| } | ||
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| min = 1 | ||
| max = 50000 | ||
| keepers = { | ||
| example = var.example | ||
| } | ||
| module "imported_findings_label" { | ||
| source = "cloudposse/label/null" | ||
| version = "0.21.0" | ||
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| attributes = ["securityhub-imported-findings"] | ||
| context = module.this.context | ||
| } | ||
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| resource "aws_cloudwatch_event_rule" "imported_findings" { | ||
| count = local.enable_notifications == true ? 1 : 0 | ||
| name = module.imported_findings_label.id | ||
| description = "SecurityHubEvent - Imported Findings" | ||
| tags = module.this.tags | ||
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| event_pattern = jsonencode( | ||
| { | ||
| "source" : [ | ||
| "aws.securityhub" | ||
| ], | ||
| "detail-type" : [ | ||
| var.cloudwatch_event_rule_pattern_detail_type | ||
| ] | ||
| } | ||
| ) | ||
| } | ||
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| resource "aws_cloudwatch_event_target" "imported_findings" { | ||
| count = local.enable_notifications == true ? 1 : 0 | ||
| rule = aws_cloudwatch_event_rule.imported_findings[0].name | ||
| arn = local.imported_findings_notification_arn | ||
| } | ||
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| #----------------------------------------------------------------------------------------------------------------------- | ||
| # Locals and Data References | ||
| #----------------------------------------------------------------------------------------------------------------------- | ||
| locals { | ||
| example = format("%v %v", var.example, join("", random_integer.example[*].result)) | ||
| enable_notifications = module.this.enabled && (var.create_sns_topic || var.imported_findings_notification_arn != null) | ||
| create_sns_topic = module.this.enabled && var.create_sns_topic | ||
| imported_findings_notification_arn = local.enable_notifications ? (var.imported_findings_notification_arn != null ? var.imported_findings_notification_arn : module.sns_topic[0].sns_topic.arn) : null | ||
| enabled_standards_arns = toset([ | ||
| for standard in var.enabled_standards : | ||
| format("arn:%s:securityhub:%s::%s", data.aws_partition.this.partition, length(regexall("ruleset", standard)) == 0 ? data.aws_region.this.name : "", standard) | ||
| ]) | ||
| } | ||
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| data "aws_partition" "this" {} | ||
| data "aws_region" "this" {} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,17 @@ | ||
| output "id" { | ||
| description = "ID of the created example" | ||
| value = module.this.enabled ? module.this.id : null | ||
| output "enabled_subscriptions" { | ||
| description = "A list of subscriptions that have been enabled" | ||
| value = [ | ||
| for standard in aws_securityhub_standards_subscription.this : | ||
| standard.id | ||
| ] | ||
| } | ||
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| output "example" { | ||
| description = "Example output" | ||
| value = module.this.enabled ? local.example : null | ||
| output "sns_topic" { | ||
| description = "The SNS topic that was created" | ||
| value = local.create_sns_topic ? module.sns_topic[0].sns_topic : null | ||
| } | ||
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| output "random" { | ||
| description = "Stable random number for this example" | ||
| value = module.this.enabled ? join("", random_integer.example[*].result) : null | ||
| output "sns_topic_subscriptions" { | ||
| description = "The SNS topic that was created" | ||
| value = local.create_sns_topic ? module.sns_topic[0].aws_sns_topic_subscriptions : null | ||
| } |
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