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This component is responsible for provisioning cloudtrail auditing in an individual account. It's expected to be used alongside the cloudtrail-bucket component as it utilizes that bucket via remote state.

This component can either be deployed selectively to various accounts with is_organization_trail=false, or alternatively created in all accounts if deployed to the management account is_organization_trail=true.

Usage

Stack Level: Global

The following is an example snippet for how to use this component:

(gbl-root.yaml)

components:
  terraform:
    cloudtrail:
      vars:
        enabled: true
        cloudtrail_bucket_environment_name: "ue1"
        cloudtrail_bucket_stage_name: "audit"
        cloudwatch_logs_retention_in_days: 730
        is_organization_trail: true

Requirements

Name	Version
<a name="requirement_terraform"></a> terraform	>= 1.0.0
<a name="requirement_aws"></a> aws	>= 4.9.0

Providers

Name	Version
<a name="provider_aws"></a> aws	>= 4.9.0

Modules

Name	Source	Version
<a name="module_account_map"></a> account_map	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
<a name="module_cloudtrail"></a> cloudtrail	cloudposse/cloudtrail/aws	0.21.0
<a name="module_cloudtrail_bucket"></a> cloudtrail_bucket	cloudposse/stack-config/yaml//modules/remote-state	1.5.0
<a name="module_iam_roles"></a> iam_roles	../account-map/modules/iam-roles	n/a
<a name="module_kms_key_cloudtrail"></a> kms_key_cloudtrail	cloudposse/kms-key/aws	0.12.1
<a name="module_this"></a> this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_cloudwatch_log_group.cloudtrail_cloudwatch_logs	resource
aws_iam_policy.cloudtrail_cloudwatch_logs	resource
aws_iam_role.cloudtrail_cloudwatch_logs	resource
aws_iam_role_policy_attachment.cloudtrail_cloudwatch_logs	resource
aws_caller_identity.this	data source
aws_iam_policy_document.cloudtrail_cloudwatch_logs	data source
aws_iam_policy_document.cloudtrail_cloudwatch_logs_assume_role	data source
aws_iam_policy_document.kms_key_cloudtrail	data source
aws_partition.current	data source

Inputs

Name	Description	Type	Default	Required
<a name="input_additional_tag_map"></a> additional_tag_map	Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br>This is for some rare cases where resources want additional configuration of tags<br>and therefore take a list of maps with tag key, value, and additional configuration.	`map(string)`	`{}`	no
<a name="input_attributes"></a> attributes	ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element.	`list(string)`	`[]`	no
<a name="input_audit_access_enabled"></a> audit_access_enabled	If `true`, allows the Audit account access to read Cloudtrail logs directly from S3. This is a requirement for running Athena queries in the Audit account.	`bool`	`false`	no
<a name="input_cloudtrail_bucket_component_name"></a> cloudtrail_bucket_component_name	The name of the CloudTrail bucket component	`string`	`"cloudtrail-bucket"`	no
<a name="input_cloudtrail_bucket_environment_name"></a> cloudtrail_bucket_environment_name	The name of the environment where the CloudTrail bucket is provisioned	`string`	n/a	yes
<a name="input_cloudtrail_bucket_stage_name"></a> cloudtrail_bucket_stage_name	The stage name where the CloudTrail bucket is provisioned	`string`	n/a	yes
<a name="input_cloudtrail_cloudwatch_logs_role_max_session_duration"></a> cloudtrail_cloudwatch_logs_role_max_session_duration	The maximum session duration (in seconds) for the CloudTrail CloudWatch Logs role. Can have a value from 1 hour to 12 hours	`number`	`43200`	no
<a name="input_cloudwatch_logs_retention_in_days"></a> cloudwatch_logs_retention_in_days	Number of days to retain logs for. CIS recommends 365 days. Possible values are: 0, 1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, and 3653. Set to 0 to keep logs indefinitely.	`number`	`365`	no
<a name="input_context"></a> context	Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional_tag_map, which are merged.	`any`	<pre>{<br> "additional_tag_map": {},<br> "attributes": [],<br> "delimiter": null,<br> "descriptor_formats": {},<br> "enabled": true,<br> "environment": null,<br> "id_length_limit": null,<br> "label_key_case": null,<br> "label_order": [],<br> "label_value_case": null,<br> "labels_as_tags": [<br> "unset"<br> ],<br> "name": null,<br> "namespace": null,<br> "regex_replace_chars": null,<br> "stage": null,<br> "tags": {},<br> "tenant": null<br>}</pre>	no
<a name="input_delimiter"></a> delimiter	Delimiter to be used between ID elements.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
<a name="input_descriptor_formats"></a> descriptor_formats	Describe additional descriptors to be output in the `descriptors` output map.<br>Map of maps. Keys are names of descriptors. Values are maps of the form<br>`{<br> format = string<br> labels = list(string)<br>}`<br>(Type is `any` so the map values can later be enhanced to provide additional options.)<br>`format` is a Terraform format string to be passed to the `format()` function.<br>`labels` is a list of labels, in order, to pass to `format()` function.<br>Label values will be normalized before being passed to `format()` so they will be<br>identical to how they appear in `id`.<br>Default is `{}` (`descriptors` output will be empty).	`any`	`{}`	no
<a name="input_enable_log_file_validation"></a> enable_log_file_validation	Specifies whether log file integrity validation is enabled. Creates signed digest for validated contents of logs	`bool`	`true`	no
<a name="input_enable_logging"></a> enable_logging	Enable logging for the trail	`bool`	`true`	no
<a name="input_enabled"></a> enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
<a name="input_environment"></a> environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
<a name="input_id_length_limit"></a> id_length_limit	Limit `id` to this many characters (minimum 6).<br>Set to `0` for unlimited length.<br>Set to `null` for keep the existing setting, which defaults to `0`.<br>Does not affect `id_full`.	`number`	`null`	no
<a name="input_include_global_service_events"></a> include_global_service_events	Specifies whether the trail is publishing events from global services such as IAM to the log files	`bool`	`true`	no
<a name="input_is_multi_region_trail"></a> is_multi_region_trail	Specifies whether the trail is created in the current region or in all regions	`bool`	`true`	no
<a name="input_is_organization_trail"></a> is_organization_trail	Specifies whether the trail is created for all accounts in an organization in AWS Organizations, or only for the current AWS account.<br><br>The default is false, and cannot be true unless the call is made on behalf of an AWS account that is the management account<br>for an organization in AWS Organizations.	`bool`	`false`	no
<a name="input_label_key_case"></a> label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br>Does not affect keys of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper`.<br>Default value: `title`.	`string`	`null`	no
<a name="input_label_order"></a> label_order	The order in which the labels (ID elements) appear in the `id`.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
<a name="input_label_value_case"></a> label_value_case	Controls the letter case of ID elements (labels) as included in `id`,<br>set as tag values, and output by this module individually.<br>Does not affect values of tags passed in via the `tags` input.<br>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br>Default value: `lower`.	`string`	`null`	no
<a name="input_labels_as_tags"></a> labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output.<br>Default is to include all labels.<br>Tags with empty values will not be included in the `tags` output.<br>Set to `[]` to suppress all generated tags.<br>Notes:<br> The value of the `name` tag, if included, will be the `id`, not the `name`.<br> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br> changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	<pre>[<br> "default"<br>]</pre>	no
<a name="input_name"></a> name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br>This is the only ID element not also included as a `tag`.<br>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
<a name="input_namespace"></a> namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	`string`	`null`	no
<a name="input_regex_replace_chars"></a> regex_replace_chars	Terraform regular expression (regex) string.<br>Characters matching the regex will be removed from the ID elements.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
<a name="input_region"></a> region	AWS Region	`string`	n/a	yes
<a name="input_stage"></a> stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
<a name="input_tags"></a> tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br>Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
<a name="input_tenant"></a> tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	`string`	`null`	no

Outputs

Name	Description
<a name="output_cloudtrail_arn"></a> cloudtrail_arn	CloudTrail ARN
<a name="output_cloudtrail_home_region"></a> cloudtrail_home_region	The region in which CloudTrail was created
<a name="output_cloudtrail_id"></a> cloudtrail_id	CloudTrail ID
<a name="output_cloudtrail_logs_log_group_arn"></a> cloudtrail_logs_log_group_arn	CloudTrail Logs log group ARN
<a name="output_cloudtrail_logs_log_group_name"></a> cloudtrail_logs_log_group_name	CloudTrail Logs log group name
<a name="output_cloudtrail_logs_role_arn"></a> cloudtrail_logs_role_arn	CloudTrail Logs role ARN
<a name="output_cloudtrail_logs_role_name"></a> cloudtrail_logs_role_name	CloudTrail Logs role name

References

cloudposse/terraform-aws-components - Cloud Posse's upstream component

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Related Projects

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Cloud Posse Terraform Modules - Our collection of reusable Terraform modules used by our reference architectures.
Atmos - Atmos is like docker-compose but for your infrastructure

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