terraform-aws-s3-bucket

This module creates an S3 bucket with support of versioning, encryption, ACL and bucket object policy. If user_enabled variable is set to true, the module will provision a basic IAM user with permissions to access the bucket.

This basic IAM system user is suitable for CI/CD systems (e.g. TravisCI, CircleCI) or systems which are external to AWS that cannot leverage AWS IAM Instance Profiles.

We do not recommend creating IAM users this way for any other purpose.

It blocks public access to the bucket by default. https://docs.aws.amazon.com/AmazonS3/latest/dev/access-control-block-public-access.html

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!

Security & Compliance

Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.

Benchmark	Description
	Infrastructure Security Compliance
	Center for Internet Security, KUBERNETES Compliance
	Center for Internet Security, AWS Compliance
	Center for Internet Security, AZURE Compliance
	Payment Card Industry Data Security Standards Compliance
	National Institute of Standards and Technology Compliance
	Information Security Management System, ISO/IEC 27001 Compliance
	Service Organization Control 2 Compliance
	Center for Internet Security, GCP Compliance
	Health Insurance Portability and Accountability Compliance

Usage

IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

Also, because of a bug in the Terraform registry (hashicorp/terraform#21417), the registry shows many of our inputs as required when in fact they are optional. The table below correctly indicates which inputs are required.

Using a canned ACL.

module "s3_bucket" {
  source = "cloudposse/s3-bucket/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  acl                      = "private"
  enabled                  = true
  user_enabled             = true
  versioning_enabled       = false
  allowed_bucket_actions   = ["s3:GetObject", "s3:ListBucket", "s3:GetBucketLocation"]
  name                     = "app"
  stage                    = "test"
  namespace                = "eg"
}

Using grants to enable access to another account and for logging.

module "s3_bucket" {
  source = "cloudposse/s3-bucket/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  acl                      = ""
  enabled                  = true
  user_enabled             = true
  versioning_enabled       = false
  allowed_bucket_actions   = ["s3:GetObject", "s3:ListBucket", "s3:GetBucketLocation"]
  name                     = "app"
  stage                    = "test"
  namespace                = "eg"

  grants = [
    {
      id          = "012abc345def678ghi901" # Canonical user or account id
      type        = "CanonicalUser"
      permissions = ["FULL_CONTROL"]
      uri         = null
    },
    {
      id          = null
      type        = "Group"
      permissions = ["READ", "WRITE"]
      uri         = "http://acs.amazonaws.com/groups/s3/LogDelivery"
    },
  ]
}

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code
  test/%                              Run Terraform commands in the examples/complete folder; e.g. make test/plan

Requirements

Name	Version
terraform	>= 0.13.0
aws	>= 2.33

Providers

Name	Version
aws	>= 2.33

Modules

Name	Source	Version
s3_user	cloudposse/iam-s3-user/aws	0.15.2
this	cloudposse/label/null	0.24.1

Resources

Name	Type
aws_iam_policy.replication	resource
aws_iam_role.replication	resource
aws_iam_role_policy_attachment.replication	resource
aws_s3_bucket.default	resource
aws_s3_bucket_policy.default	resource
aws_s3_bucket_public_access_block.default	resource
aws_iam_policy_document.aggregated_policy	data source
aws_iam_policy_document.bucket_policy	data source
aws_iam_policy_document.replication	data source
aws_iam_policy_document.replication_sts	data source
aws_partition.current	data source

Inputs

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
acl	The canned ACL to apply. We recommend `private` to avoid exposing sensitive information. Conflicts with `grants`.	`string`	`"private"`	no
additional_tag_map	Additional tags for appending to tags_as_list_of_maps. Not added to `tags`.	`map(string)`	`{}`	no
allow_encrypted_uploads_only	Set to `true` to prevent uploads of unencrypted objects to S3 bucket	`bool`	`false`	no
allow_ssl_requests_only	Set to `true` to require requests to use Secure Socket Layer (HTTPS/SSL). This will explicitly deny access to HTTP requests	`bool`	`false`	no
allowed_bucket_actions	List of actions the user is permitted to perform on the S3 bucket	`list(string)`	[ "s3:PutObject", "s3:PutObjectAcl", "s3:GetObject", "s3:DeleteObject", "s3:ListBucket", "s3:ListBucketMultipartUploads", "s3:GetBucketLocation", "s3:AbortMultipartUpload" ]	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
bucket_name	Bucket name. If provided, the bucket will be created with this name instead of generating the name from the context	`string`	`null`	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.	`any`	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {} }	no
cors_rule_inputs	Specifies the allowed headers, methods, origins and exposed headers when using CORS on this bucket	list(object({ allowed_headers = list(string) allowed_methods = list(string) allowed_origins = list(string) expose_headers = list(string) max_age_seconds = number }))	`null`	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
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
force_destroy	A boolean string 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
grants	An ACL policy grant. Conflicts with `acl`. Set `acl` to `null` to use this.	list(object({ id = string type = string permissions = list(string) uri = string }))	`null`	no
id_length_limit	Limit `id` to this many characters (minimum 6). 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_key_case	The letter case of label keys (`tag` names) (i.e. `name`, `namespace`, `environment`, `stage`, `attributes`) to use in `tags`. Possible values: `lower`, `title`, `upper`. Default value: `title`.	`string`	`null`	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
label_value_case	The letter case of output label values (also used in `tags` and `id`). Possible values: `lower`, `title`, `upper` and `none` (no transformation). Default value: `lower`.	`string`	`null`	no
lifecycle_rules	A list of lifecycle rules	list(object({ prefix = string enabled = bool tags = map(string) enable_glacier_transition = bool enable_deeparchive_transition = bool enable_standard_ia_transition = bool enable_current_object_expiration = bool abort_incomplete_multipart_upload_days = number noncurrent_version_glacier_transition_days = number noncurrent_version_deeparchive_transition_days = number noncurrent_version_expiration_days = number standard_transition_days = number glacier_transition_days = number deeparchive_transition_days = number expiration_days = number }))	[ { "abort_incomplete_multipart_upload_days": 90, "deeparchive_transition_days": 90, "enable_current_object_expiration": true, "enable_deeparchive_transition": false, "enable_glacier_transition": true, "enable_standard_ia_transition": false, "enabled": false, "expiration_days": 90, "glacier_transition_days": 60, "noncurrent_version_deeparchive_transition_days": 60, "noncurrent_version_expiration_days": 90, "noncurrent_version_glacier_transition_days": 30, "prefix": "", "standard_transition_days": 30, "tags": {} } ]	no
logging	Bucket access logging configuration.	object({ bucket_name = string prefix = string })	`null`	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
object_lock_configuration	A configuration for S3 object locking. With S3 Object Lock, you can store objects using a `write once, read many` (WORM) model. Object Lock can help prevent objects from being deleted or overwritten for a fixed amount of time or indefinitely.	object({ mode = string # Valid values are GOVERNANCE and COMPLIANCE. days = number years = number })	`null`	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
replication_rules	Specifies the replication rules if S3 bucket replication is enabled	`list(any)`	`null`	no
restrict_public_buckets	Set to `false` to disable the restricting of making the bucket public	`bool`	`true`	no
s3_replica_bucket_arn	The ARN of the S3 replica bucket (destination)	`string`	`""`	no
s3_replication_enabled	Set this to true and specify `s3_replica_bucket_arn` to enable replication. `versioning_enabled` must also be `true`.	`bool`	`false`	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
tags	Additional tags (e.g. `map('BusinessUnit','XYZ')`	`map(string)`	`{}`	no
user_enabled	Set to `true` to create an IAM user with permission to access the bucket	`bool`	`false`	no
versioning_enabled	A state of versioning. Versioning is a means of keeping multiple variants of an object in the same bucket	`bool`	`true`	no

Outputs

Name	Description
access_key_id	The access key ID
bucket_arn	Bucket ARN
bucket_domain_name	FQDN of bucket
bucket_id	Bucket Name (aka ID)
bucket_region	Bucket region
bucket_regional_domain_name	The bucket region-specific domain name
enabled	Is module enabled
secret_access_key	The secret access key. This will be written to the state file in plain-text
user_arn	The ARN assigned by AWS for the user
user_enabled	Is user creation enabled
user_name	Normalized IAM user name
user_unique_id	The user unique ID assigned by AWS

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Related Projects

Check out these related projects.

terraform-aws-cloudfront-s3-cdn - Terraform module to easily provision CloudFront CDN backed by an S3 origin
terraform-aws-s3-website - Terraform Module for Creating S3 backed Websites and Route53 DNS
terraform-aws-user-data-s3-backend - Terraform Module to Offload User Data to S3
terraform-aws-s3-logs-athena-query - A Terraform module that creates an Athena Database and Structure for querying S3 access logs
terraform-aws-lb-s3-bucket - Terraform module to provision an S3 bucket with built in IAM policy to allow AWS Load Balancers to ship access logs
terraform-aws-s3-log-storage - Terraform module creates an S3 bucket suitable for receiving logs from other AWS services such as S3, CloudFront, and CloudTrail

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Copyright

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
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regarding copyright ownership.  The ASF licenses this file
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Contributors

Erik Osterman	Andriy Knysh	Maxim Mironenko	Josh Myers

Name		Name	Last commit message	Last commit date
Latest commit History 64 Commits
.github		.github
docs		docs
examples/complete		examples/complete
test		test
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
README.yaml		README.yaml
context.tf		context.tf
main.tf		main.tf
outputs.tf		outputs.tf
replication.tf		replication.tf
variables.tf		variables.tf
versions.tf		versions.tf

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