Home

Awesome

<!-- markdownlint-disable -->

<a href="https://cpco.io/homepage"><img src="https://github.com/cloudposse/terraform-aws-cloudwatch-logs/blob/main/.github/banner.png?raw=true" alt="Project Banner"/></a><br/> <p align="right"> <a href="https://github.com/cloudposse/terraform-aws-cloudwatch-logs/releases/latest"><img src="https://img.shields.io/github/release/cloudposse/terraform-aws-cloudwatch-logs.svg?style=for-the-badge" alt="Latest Release"/></a><a href="https://github.com/cloudposse/terraform-aws-cloudwatch-logs/commits"><img src="https://img.shields.io/github/last-commit/cloudposse/terraform-aws-cloudwatch-logs.svg?style=for-the-badge" alt="Last Updated"/></a><a href="https://slack.cloudposse.com"><img src="https://slack.cloudposse.com/for-the-badge.svg" alt="Slack Community"/></a></p>

<!-- markdownlint-restore --> <!-- ** DO NOT EDIT THIS FILE ** ** This file was automatically generated by the `cloudposse/build-harness`. ** 1) Make all changes to `README.yaml` ** 2) Run `make init` (you only need to do this once) ** 3) Run`make readme` to rebuild this file. ** ** (We maintain HUNDREDS of open source projects. This is how we maintain our sanity.) ** -->

Terraform module for creation of CloudWatch Log Streams and Log Groups. Useful in combination with Fluentd/Fluent-bit for shipping logs.

[!TIP]

πŸ‘½ Use Atmos with Terraform

Cloud Posse uses atmos to easily orchestrate multiple environments using Terraform. <br/> Works with Github Actions, Atlantis, or Spacelift.

<details> <summary><strong>Watch demo of using Atmos with Terraform</strong></summary> <img src="https://github.com/cloudposse/atmos/blob/master/docs/demo.gif?raw=true"/><br/> <i>Example of running <a href="https://atmos.tools"><code>atmos</code></a> to manage infrastructure from our <a href="https://atmos.tools/quick-start/">Quick Start</a> tutorial.</i> </detalis>

Usage

module "cloudwatch_logs" {
  source  = "cloudposse/cloudwatch-logs/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version = "x.x.x"

  namespace    = "eg"
  stage        = "prod"
  name         = "app"
  stream_names = ["kafka-instance-1", "kafka-instance-2"]
}

[!IMPORTANT] In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic approach for updating versions to avoid unexpected changes.

Examples

Here's a complete example of using this terraform-aws-cloudwatch-logs module.

<!-- markdownlint-disable -->

Makefile Targets

Available targets:

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

<!-- markdownlint-restore --> <!-- markdownlint-disable -->

Requirements

NameVersion
<a name="requirement_terraform"></a> terraform>= 0.13.0
<a name="requirement_aws"></a> aws>= 3.0

Providers

NameVersion
<a name="provider_aws"></a> aws>= 3.0

Modules

NameSourceVersion
<a name="module_log_group_label"></a> log_group_labelcloudposse/label/null0.25.0
<a name="module_role"></a> rolecloudposse/iam-role/aws0.19.0
<a name="module_this"></a> thiscloudposse/label/null0.25.0

Resources

NameType
aws_cloudwatch_log_group.defaultresource
aws_cloudwatch_log_stream.defaultresource
aws_iam_policy_document.log_agentdata source

Inputs

NameDescriptionTypeDefaultRequired
<a name="input_additional_permissions"></a> additional_permissionsAdditional permissions granted to the IAM rolelist(string)<pre>[<br/> "logs:CreateLogStream",<br/> "logs:DeleteLogStream"<br/>]</pre>no
<a name="input_additional_tag_map"></a> additional_tag_mapAdditional key-value pairs to add to each map in tags_as_list_of_maps. Not added to tags or id.<br/>This is for some rare cases where resources want additional configuration of tags<br/>and therefore take a list of maps with tag key, value, and additional configuration.map(string){}no
<a name="input_attributes"></a> attributesID element. Additional attributes (e.g. workers or cluster) to add to id,<br/>in the order they appear in the list. New attributes are appended to the<br/>end of the list. The elements of the list are joined by the delimiter<br/>and treated as a single ID element.list(string)[]no
<a name="input_context"></a> contextSingle object for setting entire context at once.<br/>See description of individual variables for details.<br/>Leave string and numeric variables as null to use default value.<br/>Individual variable settings (non-null) override settings in context object,<br/>except for attributes, tags, and additional_tag_map, which are merged.any<pre>{<br/> "additional_tag_map": {},<br/> "attributes": [],<br/> "delimiter": null,<br/> "descriptor_formats": {},<br/> "enabled": true,<br/> "environment": null,<br/> "id_length_limit": null,<br/> "label_key_case": null,<br/> "label_order": [],<br/> "label_value_case": null,<br/> "labels_as_tags": [<br/> "unset"<br/> ],<br/> "name": null,<br/> "namespace": null,<br/> "regex_replace_chars": null,<br/> "stage": null,<br/> "tags": {},<br/> "tenant": null<br/>}</pre>no
<a name="input_delimiter"></a> delimiterDelimiter to be used between ID elements.<br/>Defaults to - (hyphen). Set to "" to use no delimiter at all.stringnullno
<a name="input_descriptor_formats"></a> descriptor_formatsDescribe additional descriptors to be output in the descriptors output map.<br/>Map of maps. Keys are names of descriptors. Values are maps of the form<br/>{<br/> format = string<br/> labels = list(string)<br/>}<br/>(Type is any so the map values can later be enhanced to provide additional options.)<br/>format is a Terraform format string to be passed to the format() function.<br/>labels is a list of labels, in order, to pass to format() function.<br/>Label values will be normalized before being passed to format() so they will be<br/>identical to how they appear in id.<br/>Default is {} (descriptors output will be empty).any{}no
<a name="input_enabled"></a> enabledSet to false to prevent the module from creating any resourcesboolnullno
<a name="input_environment"></a> environmentID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'stringnullno
<a name="input_iam_role_enabled"></a> iam_role_enabledWhether to create an IAM role which is able to write logs to the CloudWatch Logs log groupbooltrueno
<a name="input_iam_tags_enabled"></a> iam_tags_enabledEnable/disable tags on IAM roles and policiesstringtrueno
<a name="input_id_length_limit"></a> id_length_limitLimit id to this many characters (minimum 6).<br/>Set to 0 for unlimited length.<br/>Set to null for keep the existing setting, which defaults to 0.<br/>Does not affect id_full.numbernullno
<a name="input_kms_key_arn"></a> kms_key_arnThe ARN of the KMS Key to use when encrypting log data.<br/><br/>Please note, after the AWS KMS CMK is disassociated from the log group, AWS CloudWatch Logs stops encrypting newly ingested data for the log group.<br/><br/>All previously ingested data remains encrypted, and AWS CloudWatch Logs requires permissions for the CMK whenever the encrypted data is requested.string""no
<a name="input_label_key_case"></a> label_key_caseControls the letter case of the tags keys (label names) for tags generated by this module.<br/>Does not affect keys of tags passed in via the tags input.<br/>Possible values: lower, title, upper.<br/>Default value: title.stringnullno
<a name="input_label_order"></a> label_orderThe order in which the labels (ID elements) appear in the id.<br/>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br/>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.list(string)nullno
<a name="input_label_value_case"></a> label_value_caseControls the letter case of ID elements (labels) as included in id,<br/>set as tag values, and output by this module individually.<br/>Does not affect values of tags passed in via the tags input.<br/>Possible values: lower, title, upper and none (no transformation).<br/>Set this to title and set delimiter to "" to yield Pascal Case IDs.<br/>Default value: lower.stringnullno
<a name="input_labels_as_tags"></a> labels_as_tagsSet of labels (ID elements) to include as tags in the tags output.<br/>Default is to include all labels.<br/>Tags with empty values will not be included in the tags output.<br/>Set to [] to suppress all generated tags.<br/>Notes:<br/> The value of the name tag, if included, will be the id, not the name.<br/> Unlike other null-label inputs, the initial setting of labels_as_tags cannot be<br/> changed in later chained modules. Attempts to change it will be silently ignored.set(string)<pre>[<br/> "default"<br/>]</pre>no
<a name="input_name"></a> nameID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br/>This is the only ID element not also included as a tag.<br/>The "name" tag is set to the full id string. There is no tag with the value of the name input.stringnullno
<a name="input_namespace"></a> namespaceID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally uniquestringnullno
<a name="input_permissions_boundary"></a> permissions_boundaryARN of the policy that is used to set the permissions boundary for the IAM rolestring""no
<a name="input_principals"></a> principalsMap of service name as key and a list of ARNs to allow assuming the role as value. (e.g. map(AWS, list(arn:aws:iam:::role/admin)))map(any)<pre>{<br/> "Service": [<br/> "ec2.amazonaws.com"<br/> ]<br/>}</pre>no
<a name="input_regex_replace_chars"></a> regex_replace_charsTerraform regular expression (regex) string.<br/>Characters matching the regex will be removed from the ID elements.<br/>If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.stringnullno
<a name="input_retention_in_days"></a> retention_in_daysNumber of days you want to retain log events in the log groupstring"30"no
<a name="input_stage"></a> stageID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'stringnullno
<a name="input_stream_names"></a> stream_namesNames of streamslist(string)[]no
<a name="input_tags"></a> tagsAdditional tags (e.g. {'BusinessUnit': 'XYZ'}).<br/>Neither the tag keys nor the tag values will be modified by this module.map(string){}no
<a name="input_tenant"></a> tenantID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is forstringnullno

Outputs

NameDescription
<a name="output_log_group_arn"></a> log_group_arnARN of the log group
<a name="output_log_group_name"></a> log_group_nameName of log group
<a name="output_role_arn"></a> role_arnARN of the IAM role
<a name="output_role_name"></a> role_nameName of the IAM role
<a name="output_stream_arns"></a> stream_arnsARNs of the log streams
<!-- markdownlint-restore -->

Related Projects

Check out these related projects.

[!TIP]

Use Terraform Reference Architectures for AWS

Use Cloud Posse's ready-to-go terraform architecture blueprints for AWS to get up and running quickly.

βœ… We build it together with your team.<br/> βœ… Your team owns everything.<br/> βœ… 100% Open Source and backed by fanatical support.<br/>

<a href="https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-cloudwatch-logs&utm_content=commercial_support"><img alt="Request Quote" src="https://img.shields.io/badge/request%20quote-success.svg?style=for-the-badge"/></a>

<details><summary>πŸ“š <strong>Learn More</strong></summary> <br/>

Cloud Posse is the leading DevOps Accelerator for funded startups and enterprises.

Your team can operate like a pro today.

Ensure that your team succeeds by using Cloud Posse's proven process and turnkey blueprints. Plus, we stick around until you succeed.

Day-0: Your Foundation for Success

<a href="https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-cloudwatch-logs&utm_content=commercial_support"><img alt="Request Quote" src="https://img.shields.io/badge/request%20quote-success.svg?style=for-the-badge"/></a>

Day-2: Your Operational Mastery

<a href="https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-cloudwatch-logs&utm_content=commercial_support"><img alt="Request Quote" src="https://img.shields.io/badge/request%20quote-success.svg?style=for-the-badge"/></a>

</details>

✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

<a href="https://github.com/cloudposse/terraform-aws-cloudwatch-logs/graphs/contributors"> <img src="https://contrib.rocks/image?repo=cloudposse/terraform-aws-cloudwatch-logs&max=24" /> </a>

For πŸ› bug reports & feature requests, please use the issue tracker.

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

  1. Review our Code of Conduct and Contributor Guidelines.
  2. Fork the repo on GitHub
  3. Clone the project to your own machine
  4. Commit changes to your own branch
  5. Push your work back up to your fork
  6. 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!

🌎 Slack Community

Join our Open Source Community on Slack. It's FREE for everyone! Our "SweetOps" community is where you get to talk with others who share a similar vision for how to rollout and manage infrastructure. This is the best place to talk shop, ask questions, solicit feedback, and work together as a community to build totally sweet infrastructure.

πŸ“° Newsletter

Sign up for our newsletter and join 3,000+ DevOps engineers, CTOs, and founders who get insider access to the latest DevOps trends, so you can always stay in the know. Dropped straight into your Inbox every week β€” and usually a 5-minute read.

πŸ“† Office Hours <a href="https://cloudposse.com/office-hours?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-cloudwatch-logs&utm_content=office_hours"><img src="https://img.cloudposse.com/fit-in/200x200/https://cloudposse.com/wp-content/uploads/2019/08/Powered-by-Zoom.png" align="right" /></a>

Join us every Wednesday via Zoom for your weekly dose of insider DevOps trends, AWS news and Terraform insights, all sourced from our SweetOps community, plus a live Q&A that you can’t find anywhere else. It's FREE for everyone!

License

<a href="https://opensource.org/licenses/Apache-2.0"><img src="https://img.shields.io/badge/License-Apache%202.0-blue.svg?style=for-the-badge" alt="License"></a>

<details> <summary>Preamble to the Apache License, Version 2.0</summary> <br/> <br/>

Complete license is available in the LICENSE file.

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.
</details>

Trademarks

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


Copyright Β© 2017-2024 Cloud Posse, LLC

<a href="https://cloudposse.com/readme/footer/link?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-cloudwatch-logs&utm_content=readme_footer_link"><img alt="README footer" src="https://cloudposse.com/readme/footer/img"/></a>

<img alt="Beacon" width="0" src="https://ga-beacon.cloudposse.com/UA-76589703-4/cloudposse/terraform-aws-cloudwatch-logs?pixel&cs=github&cm=readme&an=terraform-aws-cloudwatch-logs"/>