https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack

Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack.
https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack

alarms alerts aws cloudwatch escalations hcl2 lambda slack sns terraform terraform-modules

Last synced: 5 days ago
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Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack.

• Host: GitHub
• URL: https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack
• Owner: cloudposse
• License: apache-2.0
• Created: 2018-06-27T22:52:45.000Z (over 6 years ago)
• Default Branch: main
• Last Pushed: 2024-09-19T04:59:54.000Z (about 2 months ago)
• Last Synced: 2024-09-28T03:05:18.627Z (about 2 months ago)
• Topics: alarms, alerts, aws, cloudwatch, escalations, hcl2, lambda, slack, sns, terraform, terraform-modules
• Language: HCL
• Homepage: https://cloudposse.com/accelerate
• Size: 2.04 MB
• Stars: 47
• Watchers: 18
• Forks: 41
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: .github/CODEOWNERS

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• awesome-starts - cloudposse/terraform-aws-sns-lambda-notify-slack - Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack. (terraform)

README

        





    




Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack.

> [!TIP]

> #### 👽 Use Atmos with Terraform

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> 

## Usage

```hcl

module "notify_slack" {

  source            = "git::https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack?ref=tags/0.1.0"

  namespace         = "eg"

  stage             = "staging"

  name              = "app"

  slack_webhook_url = "https://hooks.slack.com/services/AAAAAAAA/BBBBBBBB/CCCCCCC"

  slack_channel     = "aws-services"

  slack_username    = "reporter"

}

```

> [!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.

## Requirements

| Name | Version |

|------|---------|

|  [terraform](#requirement\_terraform) | >= 1.0 |

|  [archive](#requirement\_archive) | >=1.3 |

|  [aws](#requirement\_aws) | >= 2.0 |

|  [local](#requirement\_local) | >= 1.3 |

|  [null](#requirement\_null) | >= 2.0 |

|  [template](#requirement\_template) | >= 2.2 |

## Providers

No providers.

## Modules

| Name | Source | Version |

|------|--------|---------|

|  [default\_label](#module\_default\_label) | cloudposse/label/null | 0.25.0 |

|  [notify\_slack](#module\_notify\_slack) | terraform-aws-modules/notify-slack/aws | 6.4.0 |

|  [this](#module\_this) | cloudposse/label/null | 0.25.0 |

## Resources

No resources.

## Inputs

| Name | Description | Type | Default | Required |

|------|-------------|------|---------|:--------:|

|  [additional\_tag\_map](#input\_additional\_tag\_map) | Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration. | `map(string)` | `{}` | no |

|  [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the `delimiter`
and treated as a single ID element. | `list(string)` | `[]` | no |

|  [context](#input\_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,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}
 | no |

|  [create\_sns\_topic](#input\_create\_sns\_topic) | Whether to create new SNS topic | `bool` | `true` | no |

|  [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |

|  [descriptor\_formats](#input\_descriptor\_formats) | Describe additional descriptors to be output in the `descriptors` output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
`{
   format = string
   labels = list(string)
}`
(Type is `any` so the map values can later be enhanced to provide additional options.)
`format` is a Terraform format string to be passed to the `format()` function.
`labels` is a list of labels, in order, to pass to `format()` function.
Label values will be normalized before being passed to `format()` so they will be
identical to how they appear in `id`.
Default is `{}` (`descriptors` output will be empty). | `any` | `{}` | no |

|  [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no |

|  [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |

|  [id\_length\_limit](#input\_id\_length\_limit) | Limit `id` to this many characters (minimum 6).
Set to `0` for unlimited length.
Set to `null` for keep the existing setting, which defaults to `0`.
Does not affect `id_full`. | `number` | `null` | no |

|  [kms\_key\_arn](#input\_kms\_key\_arn) | ARN of the KMS key used for decrypting slack webhook url | `string` | `""` | no |

|  [label\_key\_case](#input\_label\_key\_case) | Controls the letter case of the `tags` keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper`.
Default value: `title`. | `string` | `null` | no |

|  [label\_order](#input\_label\_order) | The order in which the labels (ID elements) appear in the `id`.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present. | `list(string)` | `null` | no |

|  [label\_value\_case](#input\_label\_value\_case) | Controls the letter case of ID elements (labels) as included in `id`,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the `tags` input.
Possible values: `lower`, `title`, `upper` and `none` (no transformation).
Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.
Default value: `lower`. | `string` | `null` | no |

|  [labels\_as\_tags](#input\_labels\_as\_tags) | Set of labels (ID elements) to include as tags in the `tags` output.
Default is to include all labels.
Tags with empty values will not be included in the `tags` output.
Set to `[]` to suppress all generated tags.
**Notes:**
  The value of the `name` tag, if included, will be the `id`, not the `name`.
  Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be
  changed in later chained modules. Attempts to change it will be silently ignored. | `set(string)` | 
[
  "default"
]
 | no |

|  [lambda\_source\_path](#input\_lambda\_source\_path) | The source path of the custom Lambda function | `string` | `null` | no |

|  [name](#input\_name) | ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a `tag`.
The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input. | `string` | `null` | no |

|  [namespace](#input\_namespace) | ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique | `string` | `null` | no |

|  [regex\_replace\_chars](#input\_regex\_replace\_chars) | Terraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |

|  [slack\_channel](#input\_slack\_channel) | The name of the channel in Slack for notifications | `string` | n/a | yes |

|  [slack\_emoji](#input\_slack\_emoji) | A custom emoji that will appear on Slack messages | `string` | `":aws:"` | no |

|  [slack\_username](#input\_slack\_username) | The username that will appear on Slack messages | `string` | n/a | yes |

|  [slack\_webhook\_url](#input\_slack\_webhook\_url) | The URL of Slack webhook | `string` | n/a | yes |

|  [sns\_topic\_name](#input\_sns\_topic\_name) | Name of the SNS topic to subscribe to. | `string` | `""` | no |

|  [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |

|  [tags](#input\_tags) | Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).
Neither the tag keys nor the tag values will be modified by this module. | `map(string)` | `{}` | no |

|  [tenant](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no |

|  [vpc\_security\_group\_ids](#input\_vpc\_security\_group\_ids) | List of security group ids when the notifying Lambda Function should run in the VPC. | `list(string)` | `null` | no |

|  [vpc\_subnet\_ids](#input\_vpc\_subnet\_ids) | List of subnet ids when the notifying Lambda Function should run in the VPC. Usually private or intra subnets. | `list(string)` | `null` | no |


## Outputs

| Name | Description |

|------|-------------|

|  [lambda\_cloudwatch\_log\_group\_arn](#output\_lambda\_cloudwatch\_log\_group\_arn) | The Amazon Resource Name (ARN) specifying the log group |

|  [lambda\_iam\_role\_arn](#output\_lambda\_iam\_role\_arn) | The ARN of the IAM role used by Lambda function |

|  [lambda\_iam\_role\_name](#output\_lambda\_iam\_role\_name) | The name of the IAM role used by Lambda function |

|  [notify\_slack\_lambda\_function\_arn](#output\_notify\_slack\_lambda\_function\_arn) | The ARN of the Lambda function |

|  [notify\_slack\_lambda\_function\_invoke\_arn](#output\_notify\_slack\_lambda\_function\_invoke\_arn) | The ARN to be used for invoking Lambda function from API Gateway |

|  [notify\_slack\_lambda\_function\_last\_modified](#output\_notify\_slack\_lambda\_function\_last\_modified) | The date Lambda function was last modified |

|  [notify\_slack\_lambda\_function\_name](#output\_notify\_slack\_lambda\_function\_name) | The name of the Lambda function |

|  [notify\_slack\_lambda\_function\_version](#output\_notify\_slack\_lambda\_function\_version) | Latest published version of your Lambda function |

|  [slack\_topic\_arn](#output\_slack\_topic\_arn) | The ARN of the SNS topic from which messages will be sent to Slack |

## Related Projects

Check out these related projects.

- [terraform-aws-cloudwatch-logs](https://github.com/cloudposse/terraform-aws-cloudwatch-logs) - Terraform Module to Provide a CloudWatch Logs Endpoint

- [terraform-aws-cloudwatch-flow-logs](https://github.com/cloudposse/terraform-aws-cloudwatch-flow-logs) - Terraform module for enabling flow logs for vpc and subnets.

- [terraform-aws-efs-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-efs-cloudwatch-sns-alarms) - Terraform module that configures CloudWatch SNS alerts for EFS

- [terrform-aws-elasticache-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-elasticache-cloudwatch-sns-alarms) - Terraform module that configures CloudWatch SNS alerts for ElastiCache

- [terraform-aws-lambda-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-lambda-cloudwatch-sns-alarms) - Terraform module for creating a set of Lambda alarms and outputting to an endpoint

- [terraform-aws-rds-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-rds-cloudwatch-sns-alarms) - Terraform module that configures important RDS alerts using CloudWatch and sends them to an SNS topic

- [terraform-aws-sqs-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-sqs-cloudwatch-sns-alarms) - Terraform module for creating alarms for SQS and notifying endpoints

> [!TIP]

> #### Use Terraform Reference Architectures for AWS

>

> Use Cloud Posse's ready-to-go [terraform architecture blueprints](https://cloudposse.com/reference-architecture/) for AWS to get up and running quickly.

>

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> ✅ Your team owns everything.


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> 


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> - **Reference Architecture.** You'll get everything you need from the ground up built using 100% infrastructure as code.

> - **Deployment Strategy.** Adopt a proven deployment strategy with GitHub Actions, enabling automated, repeatable, and reliable software releases.

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> - **Security Baseline.** Establish a secure environment from the start, with built-in governance, accountability, and comprehensive audit logs, safeguarding your operations.

> - **GitOps.** Empower your team to manage infrastructure changes confidently and efficiently through Pull Requests, leveraging the full power of GitHub Actions.

>

> 

>

> #### Day-2: Your Operational Mastery

> - **Training.** Equip your team with the knowledge and skills to confidently manage the infrastructure, ensuring long-term success and self-sufficiency.

> - **Support.** Benefit from a seamless communication over Slack with our experts, ensuring you have the support you need, whenever you need it.

> - **Troubleshooting.** Access expert assistance to quickly resolve any operational challenges, minimizing downtime and maintaining business continuity.

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> - **Customer Workshops.** Engage with our team in weekly workshops, gaining insights and strategies to continuously improve and innovate.

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> 

## ✨ Contributing

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

Many thanks to our outstanding contributors:



  



For 🐛 bug reports & feature requests, please use the [issue tracker](https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack/issues).

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

 1. Review our [Code of Conduct](https://github.com/cloudposse/terraform-aws-sns-lambda-notify-slack/?tab=coc-ov-file#code-of-conduct) and [Contributor Guidelines](https://github.com/cloudposse/.github/blob/main/CONTRIBUTING.md).

 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](https://cpco.io/slack?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-sns-lambda-notify-slack&utm_content=slack) 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.

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## License



Preamble to the Apache License, Version 2.0







Complete license is available in the [`LICENSE`](LICENSE) file.

```text

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.

```

## Trademarks

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

---

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