cloudposse / Terraform Aws S3 Log Storage
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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
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.
module "log_storage" {
source = "cloudposse/s3-log-storage/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
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 | >= 0.13.0 |
| aws | >= 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. |
any |
{ |
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 (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_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 |
true |
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 © 2017-2021 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
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
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About
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Contributors
 Erik Osterman |
 Andriy Knysh |
 Vladimir |
 Gonzalo Peci |
|---|