terraform-aws-cloudtrail

Terraform module which creates CloudTrail resources on AWS.

Description

Provision CloudTrail. This module provides recommended settings.

• Enable for all AWS regions
• Logging for global services such as IAM, STS and CloudFront
• Enable log file integrity validation

Usage

Minimal

module "cloudtrail" {
  source         = "git::https://github.com/tmknom/terraform-aws-cloudtrail.git?ref=tags/1.2.0"
  name           = "default-trail"
  s3_bucket_name = "cloudtrail-bucket"
}

Complete

module "cloudtrail" {
  source         = "git::https://github.com/tmknom/terraform-aws-cloudtrail.git?ref=tags/1.2.0"
  name           = "default-trail"
  s3_bucket_name = "cloudtrail-bucket"

  enable_logging                = false
  is_multi_region_trail         = false
  include_global_service_events = false
  enable_log_file_validation    = false

  cloud_watch_logs_role_arn  = "${module.iam_role.iam_role_arn}"
  cloud_watch_logs_group_arn = "${aws_cloudwatch_log_group.complete.arn}"

  tags = {
    Environment = "prod"
    Name        = "default-trail"
  }
}

resource "aws_cloudwatch_log_group" "complete" {
  name = "CloudTrail/logs"
}

module "iam_role" {
  source             = "git::https://github.com/tmknom/terraform-aws-iam-role.git?ref=tags/1.2.0"
  name               = "sending-cloudwatch-logs-for-cloudtrail"
  assume_role_policy = "${data.aws_iam_policy_document.assume_role_policy.json}"
  policy             = "${data.aws_iam_policy_document.policy.json}"
  description        = "Send log events to CloudWatch Logs from CloudTrail"
}

# Omitted below.

Examples

• Minimal
• Complete

Inputs

Name	Description	Type	Default	Required
name	Specifies the name of the trail.	string	-	yes
s3_bucket_name	Specifies the name of the S3 bucket designated for publishing log files.	string	-	yes
cloud_watch_logs_group_arn	Specifies a log group name using an Amazon Resource Name (ARN).	string	``	no
cloud_watch_logs_role_arn	Specifies the role for the CloudWatch Logs endpoint to assume to write to a user’s log group.	string	``	no
enable_log_file_validation	Specifies whether log file integrity validation is enabled.	string	true	no
enable_logging	Enables logging for the trail.	string	true	no
include_global_service_events	Specifies whether the trail is publishing events from global services such as IAM to the log files.	string	true	no
is_multi_region_trail	Specifies whether the trail is created in the current region or in all regions.	string	true	no
tags	A mapping of tags to assign to the bucket.	map	{}	no

Outputs

Name	Description
cloudtrail_arn	The Amazon Resource Name of the trail.
cloudtrail_home_region	The region in which the trail was created.
cloudtrail_name	The name of the trail.

Development

Requirements

• Docker

Configure environment variables

export AWS_ACCESS_KEY_ID=AKIAIOSFODNN7EXAMPLE
export AWS_SECRET_ACCESS_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
export AWS_DEFAULT_REGION=ap-northeast-1

Installation

git clone [email protected]:tmknom/terraform-aws-cloudtrail.git
cd terraform-aws-cloudtrail
make install

Makefile targets

check-format                   Check format code
cibuild                        Execute CI build
clean                          Clean .terraform
docs                           Generate docs
format                         Format code
help                           Show help
install                        Install requirements
lint                           Lint code
release                        Release GitHub and Terraform Module Registry
terraform-apply-complete       Run terraform apply examples/complete
terraform-apply-minimal        Run terraform apply examples/minimal
terraform-destroy-complete     Run terraform destroy examples/complete
terraform-destroy-minimal      Run terraform destroy examples/minimal
terraform-plan-complete        Run terraform plan examples/complete
terraform-plan-minimal         Run terraform plan examples/minimal
upgrade                        Upgrade makefile

Releasing new versions

Bump VERSION file, and run make release.

Terraform Module Registry

• https://registry.terraform.io/modules/tmknom/cloudtrail/aws

License

Apache 2 Licensed. See LICENSE for full details.