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feat: Support aws_cloudwatch_log_account_policy #71

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18 changes: 18 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -207,6 +207,23 @@ module "composite_alarm" {
}
```

### Log Account Policy

```hcl
module "log_account_policy" {
source = "terraform-aws-modules/cloudwatch/aws//modules/log-account-policy"
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version = "~> 4.0"

log_account_policy_name = "account-data-protection"
log_account_policy_type = "DATA_PROTECTION_POLICY"
create_log_data_protection_policy = true
log_data_protection_policy_name = "redact-addresses"

data_identifiers = ["arn:aws:dataprotection::aws:data-identifier/Address"]
findings_destination_cloudwatch_log_group = "my-cloudwatch-audit-log-group"
}
```

## Examples

- [Complete Cloudwatch log metric filter and alarm](https://github.com/terraform-aws-modules/terraform-aws-cloudwatch/tree/master/examples/complete-log-metric-filter-and-alarm)
Expand All @@ -217,6 +234,7 @@ module "composite_alarm" {
- [Cloudwatch query definition](https://github.com/terraform-aws-modules/terraform-aws-cloudwatch/tree/master/examples/query-definition)
- [Cloudwatch Metric Stream](https://github.com/terraform-aws-modules/terraform-aws-cloudwatch/tree/master/examples/metric-stream)
- [Cloudwatch Composite Alarm](https://github.com/terraform-aws-modules/terraform-aws-cloudwatch/tree/master/examples/composite-alarm)
- [Cloudwatch Log Account Policy](https://github.com/terraform-aws-modules/terraform-aws-cloudwatch/tree/master/examples/log-account-policy)

<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
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2 changes: 1 addition & 1 deletion examples/cis-alarms/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ Note that this example may create resources which cost money. Run `terraform des
| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.58 |

## Providers

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2 changes: 1 addition & 1 deletion examples/cis-alarms/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}
}
}
2 changes: 1 addition & 1 deletion examples/complete-log-metric-filter-and-alarm/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ Note that this example may create resources which cost money. Run `terraform des
| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.30 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.58 |

## Providers

Expand Down
2 changes: 1 addition & 1 deletion examples/complete-log-metric-filter-and-alarm/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.30"
version = ">= 5.58"
}
}
}
2 changes: 1 addition & 1 deletion examples/composite-alarm/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ Note that this example may create resources which cost money. Run `terraform des
| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.12 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.58 |

## Providers

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2 changes: 1 addition & 1 deletion examples/composite-alarm/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.12"
version = ">= 5.58"
}
}
}
2 changes: 1 addition & 1 deletion examples/fixtures/aws_cloudwatch_log_group/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}

random = {
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2 changes: 1 addition & 1 deletion examples/fixtures/aws_kms_key/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}

random = {
Expand Down
2 changes: 1 addition & 1 deletion examples/fixtures/aws_lambda_function/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}

random = {
Expand Down
2 changes: 1 addition & 1 deletion examples/fixtures/aws_sns_topic/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}

random = {
Expand Down
2 changes: 1 addition & 1 deletion examples/lambda-metric-alarm/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ Note that this example may create resources which cost money. Run `terraform des
| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.58 |

## Providers

Expand Down
2 changes: 1 addition & 1 deletion examples/lambda-metric-alarm/versions.tf
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = ">= 5.0"
version = ">= 5.58"
}
}
}
56 changes: 56 additions & 0 deletions examples/log-account-policy/README.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,56 @@
# Complete Cloudwatch log account policy

<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
## Requirements

| Name | Version |
|------|---------|
| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.58 |
| <a name="requirement_random"></a> [random](#requirement\_random) | >= 3.5 |

## Providers

| Name | Version |
|------|---------|
| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.58 |
| <a name="provider_random"></a> [random](#provider\_random) | >= 3.5 |

## Modules

| Name | Source | Version |
|------|--------|---------|
| <a name="module_audit_destination_group"></a> [audit\_destination\_group](#module\_audit\_destination\_group) | ../../modules/log-group | n/a |
| <a name="module_cw_logs_to_firehose"></a> [cw\_logs\_to\_firehose](#module\_cw\_logs\_to\_firehose) | terraform-aws-modules/iam/aws//modules/iam-assumable-role | ~> 5.0 |
| <a name="module_cw_logs_to_firehose_policy"></a> [cw\_logs\_to\_firehose\_policy](#module\_cw\_logs\_to\_firehose\_policy) | terraform-aws-modules/iam/aws//modules/iam-policy | ~> 5.0 |
| <a name="module_excluded_log_group"></a> [excluded\_log\_group](#module\_excluded\_log\_group) | ../../modules/log-group | n/a |
| <a name="module_firehose_to_s3"></a> [firehose\_to\_s3](#module\_firehose\_to\_s3) | terraform-aws-modules/iam/aws//modules/iam-assumable-role | ~> 5.0 |
| <a name="module_firehose_to_s3_policy"></a> [firehose\_to\_s3\_policy](#module\_firehose\_to\_s3\_policy) | terraform-aws-modules/iam/aws//modules/iam-policy | ~> 5.0 |
| <a name="module_log_account_data_retention_policy"></a> [log\_account\_data\_retention\_policy](#module\_log\_account\_data\_retention\_policy) | ../../modules/log-account-policy | n/a |
| <a name="module_log_account_subscription_filter_policy"></a> [log\_account\_subscription\_filter\_policy](#module\_log\_account\_subscription\_filter\_policy) | ../../modules/log-account-policy | n/a |
| <a name="module_log_group"></a> [log\_group](#module\_log\_group) | ../../modules/log-group | n/a |
| <a name="module_logs_bucket"></a> [logs\_bucket](#module\_logs\_bucket) | terraform-aws-modules/s3-bucket/aws | ~> 4.0 |

## Resources

| Name | Type |
|------|------|
| [aws_kinesis_firehose_delivery_stream.logs](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/kinesis_firehose_delivery_stream) | resource |
| [random_pet.this](https://registry.terraform.io/providers/hashicorp/random/latest/docs/resources/pet) | resource |
| [aws_caller_identity.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source |
| [aws_iam_policy_document.custom_trust_policy](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.cw_logs_to_firehose](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.firehose_to_s3](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_region.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source |

## Inputs

No inputs.

## Outputs

| Name | Description |
|------|-------------|
| <a name="output_log_account_data_retention_policy_name"></a> [log\_account\_data\_retention\_policy\_name](#output\_log\_account\_data\_retention\_policy\_name) | Name of Cloudwatch log account policy |
| <a name="output_log_account_subscription_filter_retention_policy_name"></a> [log\_account\_subscription\_filter\_retention\_policy\_name](#output\_log\_account\_subscription\_filter\_retention\_policy\_name) | Name of Cloudwatch log account policy |
<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
202 changes: 202 additions & 0 deletions examples/log-account-policy/main.tf
Original file line number Diff line number Diff line change
@@ -0,0 +1,202 @@
provider "aws" {
region = "eu-west-1"
}

data "aws_region" "current" {}

data "aws_caller_identity" "current" {}

module "log_group" {
source = "../../modules/log-group"

name_prefix = "my-log-group-"
retention_in_days = 7
}

module "excluded_log_group" {
source = "../../modules/log-group"

name_prefix = "my-excluded-log-group-"
retention_in_days = 7
}

module "audit_destination_group" {
source = "../../modules/log-group"

name_prefix = "audit-destination-log-group-"
retention_in_days = 7
}

module "log_account_data_retention_policy" {
source = "../../modules/log-account-policy"

log_account_policy_name = "account-data-protection"
log_account_policy_type = "DATA_PROTECTION_POLICY"

# custom data identifier not yet supported by the data source for aws_cloudwatch_log_data_protection_policy within the module
# specify your own json policy document if this is needed using policy_document argument
create_log_data_protection_policy = true
log_data_protection_policy_name = "redact-addresses"

data_identifiers = ["arn:aws:dataprotection::aws:data-identifier/Address"]
findings_destination_cloudwatch_log_group = module.audit_destination_group.cloudwatch_log_group_name
}

# This example requires two terraform applies and will error on the first run due to firehose stream not in ACTIVE state even with depends_on set
# Related: https://github.com/hashicorp/terraform-provider-aws/issues/17049
module "log_account_subscription_filter_policy" {
source = "../../modules/log-account-policy"

log_account_policy_name = "account-subscription-filter"
log_account_policy_type = "SUBSCRIPTION_FILTER_POLICY"
policy_document = jsonencode(
{
DestinationArn = aws_kinesis_firehose_delivery_stream.logs.arn
FilterPattern = "%test%"
RoleArn = module.cw_logs_to_firehose.iam_role_arn
}
)
log_account_policy_selection_criteria = "LogGroupName NOT IN [\"${module.excluded_log_group.cloudwatch_log_group_name}\"]"

depends_on = [
aws_kinesis_firehose_delivery_stream.logs,
module.cw_logs_to_firehose,
module.cw_logs_to_firehose_policy
]
}

################################################################################
# Supporting Resources
################################################################################

resource "random_pet" "this" {
length = 2
}

module "logs_bucket" {
source = "terraform-aws-modules/s3-bucket/aws"
version = "~> 4.0"

bucket_prefix = "${random_pet.this.id}-logs"

force_destroy = true
}

resource "aws_kinesis_firehose_delivery_stream" "logs" {
name = "${random_pet.this.id}-logs"
destination = "extended_s3"

extended_s3_configuration {
role_arn = module.firehose_to_s3.iam_role_arn
bucket_arn = module.logs_bucket.s3_bucket_arn
prefix = "from-firehose-logs/"
}
}

module "firehose_to_s3" {
source = "terraform-aws-modules/iam/aws//modules/iam-assumable-role"
version = "~> 5.0"

trusted_role_services = [
"firehose.amazonaws.com"
]

create_role = true

role_name_prefix = "${random_pet.this.id}-firehose-to-s3-"
role_requires_mfa = false

custom_role_policy_arns = [
module.firehose_to_s3_policy.arn
]
}

module "firehose_to_s3_policy" {
source = "terraform-aws-modules/iam/aws//modules/iam-policy"
version = "~> 5.0"

name = "${random_pet.this.id}-firehose-to-s3"
path = "/"
description = "Pipes logging firehose to s3 policy"

policy = data.aws_iam_policy_document.firehose_to_s3.json
}

data "aws_iam_policy_document" "firehose_to_s3" {
statement {
effect = "Allow"

actions = [
"s3:AbortMultipartUpload",
"s3:GetBucketLocation",
"s3:GetObject",
"s3:ListBucket",
"s3:ListBucketMultipartUploads",
"s3:PutObject",
]

resources = [
module.logs_bucket.s3_bucket_arn,
"${module.logs_bucket.s3_bucket_arn}/*",
]
}
}

module "cw_logs_to_firehose" {
source = "terraform-aws-modules/iam/aws//modules/iam-assumable-role"
version = "~> 5.0"

create_role = true

role_name_prefix = "${random_pet.this.id}-cw-logs-to-firehose-"
role_requires_mfa = false
create_custom_role_trust_policy = true
custom_role_trust_policy = data.aws_iam_policy_document.custom_trust_policy.json

custom_role_policy_arns = [
module.cw_logs_to_firehose_policy.arn
]
}

data "aws_iam_policy_document" "custom_trust_policy" {
statement {
effect = "Allow"
actions = ["sts:AssumeRole"]

condition {
test = "StringLike"
variable = "aws:SourceArn"
values = ["arn:aws:logs:${data.aws_region.current.id}:${data.aws_caller_identity.current.account_id}:*"]
}

principals {
identifiers = ["logs.amazonaws.com"]
type = "Service"
}
}
}

module "cw_logs_to_firehose_policy" {
source = "terraform-aws-modules/iam/aws//modules/iam-policy"
version = "~> 5.0"

name = "${random_pet.this.id}-cw-logs-to-firehose"
path = "/"
description = "Cloudwatch logs to firehose policy"

policy = data.aws_iam_policy_document.cw_logs_to_firehose.json
}

data "aws_iam_policy_document" "cw_logs_to_firehose" {
statement {
effect = "Allow"

actions = [
"firehose:PutRecord",
]

resources = [
aws_kinesis_firehose_delivery_stream.logs.arn,
]
}
}
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