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terraform-aws-dynamodb-autoscaler Latest Release Slack Community

README Header

Cloud Posse

Terraform module to provision DynamoDB autoscaler.

Autoscaler scales up/down the provisioned OPS for a DynamoDB table based on the load.


This project is part of our comprehensive "SweetOps" approach towards DevOps.

Terraform Open Source Modules

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 Infrastructure Security Compliance
CIS KUBERNETES Center for Internet Security, KUBERNETES Compliance
CIS AWS Center for Internet Security, AWS Compliance
CIS AZURE Center for Internet Security, AZURE Compliance
PCI-DSS Payment Card Industry Data Security Standards Compliance
NIST-800-53 National Institute of Standards and Technology Compliance
ISO27001 Information Security Management System, ISO/IEC 27001 Compliance
SOC2 Service Organization Control 2 Compliance
CIS GCP Center for Internet Security, GCP Compliance
HIPAA 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 "dynamodb_autoscaler" {
  source = "cloudposse/dynamodb-autoscaler/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"
  namespace                    = "eg"
  stage                        = "dev"
  name                         = "cluster"
  dynamodb_table_name          = "eg-dev-cluster-terraform-state-lock"
  dynamodb_indexes             = ["first-index", "second-index"]
  dynamodb_table_arn           = "arn:aws:dynamodb:us-east-1:123456789012:table/eg-dev-cluster-terraform-state-lock"
  autoscale_write_target       = 50
  autoscale_read_target        = 50
  autoscale_min_read_capacity  = 5
  autoscale_max_read_capacity  = 20
  autoscale_min_write_capacity = 5
  autoscale_max_write_capacity = 20
}

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
null >= 2.0

Providers

Name Version
aws >= 2.0

Modules

Name Source Version
this cloudposse/label/null 0.24.1

Resources

Name Type
aws_appautoscaling_policy.read_policy resource
aws_appautoscaling_policy.read_policy_index resource
aws_appautoscaling_policy.write_policy resource
aws_appautoscaling_policy.write_policy_index resource
aws_appautoscaling_target.read_target resource
aws_appautoscaling_target.read_target_index resource
aws_appautoscaling_target.write_target resource
aws_appautoscaling_target.write_target_index resource

Inputs

Name Description Type Default Required
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
autoscale_max_read_capacity DynamoDB autoscaling max read capacity number 20 no
autoscale_max_write_capacity DynamoDB autoscaling max write capacity number 20 no
autoscale_min_read_capacity DynamoDB autoscaling min read capacity number 5 no
autoscale_min_write_capacity DynamoDB autoscaling min write capacity number 5 no
autoscale_read_target The target value for DynamoDB read autoscaling number 50 no
autoscale_write_target The target value for DynamoDB write autoscaling number 50 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
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
dynamodb_indexes List of DynamoDB indexes list(string) [] no
dynamodb_table_arn DynamoDB table ARN string n/a yes
dynamodb_table_name DynamoDB table name string n/a yes
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
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
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
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
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
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

Outputs

Name Description
appautoscaling_read_policy_arn Appautoscaling read policy ARN
appautoscaling_write_policy_arn Appautoscaling write policy ARN

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Related Projects

Check out these related projects.

  • terraform-aws-dynamodb - Terraform module that implements AWS DynamoDB with support for AutoScaling
  • terraform-aws-tfstate-backend - Provision an S3 bucket to store terraform.tfstate file and a DynamoDB table to lock the state file to prevent concurrent modifications and state corruption

Help

Got a question? We got answers.

File a GitHub issue, send us an email or join our Slack Community.

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Contributing

Bug Reports & Feature Requests

Please use the issue tracker to report any bugs or file feature requests.

Developing

If you are interested in being a contributor and want to get involved in developing this project or help out with our other projects, we would love to hear from you! Shoot us an email.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

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  2. Clone the project to your own machine
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  4. Push your work back up to your fork
  5. Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

Copyright

Copyright © 2017-2021 Cloud Posse, LLC

License

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,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

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All other trademarks referenced herein are the property of their respective owners.

About

This project is maintained and funded by Cloud Posse, LLC. Like it? Please let us know by leaving a testimonial!

Cloud Posse

We're a DevOps Professional Services company based in Los Angeles, CA. We ❤️ Open Source Software.

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Contributors

Erik Osterman
Erik Osterman
Andriy Knysh
Andriy Knysh
Michele Cantelli
Michele Cantelli

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