Terraform module to provision an S3 bucket with built in policy to allow CloudTrail logs.
This is useful if an organization uses a number of separate AWS accounts to isolate the Audit environment from other environments (production, staging, development).
In this case, you create CloudTrail in the production environment (Production AWS account), while the S3 bucket to store the CloudTrail logs is created in the Audit AWS account, restricting access to the logs only to the users/groups from the Audit account.
The module supports the following:
- Forced server-side encryption at rest for the S3 bucket
- S3 bucket versioning to easily recover from both unintended user actions and application failures
- S3 bucket is protected from deletion if it's not empty (force_destroy set to
false)
This project is part of our comprehensive "SweetOps" approach towards DevOps.
It's 100% Open Source and licensed under the APACHE2.
We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!
IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases.
Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.
module "s3_bucket" {
source = "git::https://github.com/cloudposse/terraform-aws-cloudtrail-s3-bucket.git?ref=master"
namespace = "eg"
stage = "prod"
name = "cluster"
}Available targets:
help Help screen
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help/short This help short screen
lint Lint terraform code
| Name | Version |
|---|---|
| terraform | >= 0.12.0 |
| aws | >= 2.0 |
| local | >= 1.2 |
| null | >= 2.0 |
| Name | Version |
|---|---|
| aws | >= 2.0 |
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| abort_incomplete_multipart_upload_days | Maximum time (in days) that you want to allow multipart uploads to remain in progress | number |
5 |
no |
| access_log_bucket_name | Name of the S3 bucket where s3 access log will be sent to | string |
"" |
no |
| acl | The canned ACL to apply. We recommend log-delivery-write for compatibility with AWS services | string |
"log-delivery-write" |
no |
| additional_tag_map | Additional tags for appending to tags_as_list_of_maps. Not added to tags. |
map(string) |
{} |
no |
| arn_format | ARN format to be used. May be changed to support deployment in GovCloud/China regions. | string |
"arn:aws" |
no |
| attributes | Additional attributes (e.g. 1) |
list(string) |
[] |
no |
| block_public_acls | Set to false to disable the blocking of new public access lists on the bucket |
bool |
true |
no |
| block_public_policy | Set to false to disable the blocking of new public policies on the bucket |
bool |
true |
no |
| context | Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as null to use default value.Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged. |
object({ |
{ |
no |
| delimiter | Delimiter to be used between namespace, environment, stage, name and attributes.Defaults to - (hyphen). Set to "" to use no delimiter at all. |
string |
null |
no |
| enable_glacier_transition | Glacier transition might just increase your bill. Set to false to disable lifecycle transitions to AWS Glacier. | bool |
false |
no |
| enabled | Set to false to prevent the module from creating any resources | bool |
null |
no |
| environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | string |
null |
no |
| expiration_days | Number of days after which to expunge the objects | number |
90 |
no |
| force_destroy | (Optional, Default:false ) A boolean that indicates all objects should be deleted from the bucket so that the bucket can be destroyed without error. These objects are not recoverable | bool |
false |
no |
| glacier_transition_days | Number of days after which to move the data to the glacier storage tier | number |
60 |
no |
| id_length_limit | Limit id to this many characters.Set to 0 for unlimited length.Set to null for default, which is 0.Does not affect id_full. |
number |
null |
no |
| ignore_public_acls | Set to false to disable the ignoring of public access lists on the bucket |
bool |
true |
no |
| kms_master_key_arn | The AWS KMS master key ARN used for the SSE-KMS encryption. This can only be used when you set the value of sse_algorithm as aws:kms. The default aws/s3 AWS KMS master key is used if this element is absent while the sse_algorithm is aws:kms | string |
"" |
no |
| label_order | The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present. |
list(string) |
null |
no |
| lifecycle_prefix | Prefix filter. Used to manage object lifecycle events | string |
"" |
no |
| lifecycle_rule_enabled | Enable lifecycle events on this bucket | bool |
true |
no |
| lifecycle_tags | Tags filter. Used to manage object lifecycle events | map(string) |
{} |
no |
| name | Solution name, e.g. 'app' or 'jenkins' | string |
null |
no |
| namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | string |
null |
no |
| noncurrent_version_expiration_days | Specifies when noncurrent object versions expire | number |
90 |
no |
| noncurrent_version_transition_days | Specifies when noncurrent object versions transitions | number |
30 |
no |
| policy | A valid bucket policy JSON document. Note that if the policy document is not specific enough (but still valid), Terraform may view the policy as constantly changing in a terraform plan. In this case, please make sure you use the verbose/specific version of the policy | string |
"" |
no |
| regex_replace_chars | Regex to replace chars with empty string in namespace, environment, stage and name.If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits. |
string |
null |
no |
| restrict_public_buckets | Set to false to disable the restricting of making the bucket public |
bool |
true |
no |
| sse_algorithm | The server-side encryption algorithm to use. Valid values are AES256 and aws:kms | string |
"AES256" |
no |
| stage | Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release' | string |
null |
no |
| standard_transition_days | Number of days to persist in the standard storage tier before moving to the infrequent access tier | number |
30 |
no |
| tags | Additional tags (e.g. map('BusinessUnit','XYZ') |
map(string) |
{} |
no |
| versioning_enabled | A state of versioning. Versioning is a means of keeping multiple variants of an object in the same bucket | bool |
false |
no |
| Name | Description |
|---|---|
| bucket_arn | Bucket ARN |
| bucket_domain_name | FQDN of bucket |
| bucket_id | Bucket ID |
| prefix | Prefix configured for lifecycle rules |
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Check out these related projects.
- terraform-aws-cloudtrail - Terraform module to provision an AWS CloudTrail and an encrypted S3 bucket with versioning to store CloudTrail logs
- terraform-aws-cloudtrail-cloudwatch-alarms - Terraform module for creating alarms for tracking important changes and occurances from cloudtrail.
- terraform-aws-s3-log-storage - This module creates an S3 bucket suitable for receiving logs from other AWS services such as S3, CloudFront, and CloudTrail
- terraform-aws-cloudtrail-s3-bucket - S3 bucket with built in IAM policy to allow CloudTrail logs
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