terraform-aws-s3-log-storage

This module creates an S3 bucket suitable for receiving logs from other AWS services such as S3, CloudFront, and CloudTrails.

It implements a configurable log retention policy, which allows you to efficiently manage logs across different storage classes (e.g. Glacier) and ultimately expire the data altogether.

It enables server-side default encryption.

https://docs.aws.amazon.com/AmazonS3/latest/dev/bucket-encryption.html

It blocks public access to the bucket by default.

https://docs.aws.amazon.com/AmazonS3/latest/dev/access-control-block-public-access.html

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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!

Usage

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 "log_storage" {
  source                   = "git::https://github.com/cloudposse/terraform-aws-s3-log-storage.git?ref=master"
  name                     = "logs"
  stage                    = "test"
  namespace                = "eg"
  acl                      = "log-delivery-write"
  standard_transition_days = 30
  glacier_transition_days  = 60
  expiration_days          = 90
}

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
terraform	>= 0.12.0
aws	>= 2.0
local	>= 1.2
null	>= 2.0

Providers

Name	Version
aws	>= 2.0

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
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
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({ enabled = bool namespace = string environment = string stage = string name = string delimiter = string attributes = list(string) tags = map(string) additional_tag_map = map(string) regex_replace_chars = string label_order = list(string) id_length_limit = number })	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "enabled": true, "environment": null, "id_length_limit": null, "label_order": [], "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {} }	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	Enables the transition to AWS Glacier which can cause unnecessary costs for huge amount of small files	bool	true	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

Outputs

Name	Description
bucket_arn	Bucket ARN
bucket_domain_name	FQDN of bucket
bucket_id	Bucket Name (aka ID)
enabled	Is module enabled
prefix	Prefix configured for lifecycle rules

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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

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Copyright

Copyright © 2017-2020 Cloud Posse, LLC

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
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  https://www.apache.org/licenses/LICENSE-2.0

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Contributors

Erik Osterman	Andriy Knysh	Vladimir	Gonzalo Peci