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https://github.com/cloudposse/terraform-aws-cloudwatch-flow-logs
Terraform module for enabling flow logs for vpc and subnets.
https://github.com/cloudposse/terraform-aws-cloudwatch-flow-logs
aws cloudwatch-logs ec2 secops terraform terraform-module vpc-flow-logs
Last synced: 2 days ago
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Terraform module for enabling flow logs for vpc and subnets.
- Host: GitHub
- URL: https://github.com/cloudposse/terraform-aws-cloudwatch-flow-logs
- Owner: cloudposse
- License: apache-2.0
- Created: 2017-10-19T15:28:25.000Z (about 7 years ago)
- Default Branch: main
- Last Pushed: 2024-09-06T15:54:14.000Z (2 months ago)
- Last Synced: 2024-09-06T18:56:40.112Z (2 months ago)
- Topics: aws, cloudwatch-logs, ec2, secops, terraform, terraform-module, vpc-flow-logs
- Language: HCL
- Homepage: https://cloudposse.com/accelerate
- Size: 1.93 MB
- Stars: 34
- Watchers: 21
- Forks: 25
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
Terraform module for enabling [`flow logs`](http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/flow-logs.html) for `vpc` and `subnets`.
> [!TIP]
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## Usage
```terraform
module "flow_logs" {
source = "git::https://github.com/cloudposse/terraform-aws-cloudwatch-flow-logs.git?ref=master"
vpc_id = "${var.vpc_id}"
namespace = "${var.namespace}"
stage = "${var.stage}"
}
```
> [!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.
## Makefile Targets
```text
Available targets:
help Help screen
help/all Display help for all targets
help/short This help short screen
lint Lint terraform code
```
## Requirements
No requirements.
## Providers
| Name | Version |
|------|---------|
| [aws](#provider\_aws) | n/a |
## Modules
| Name | Source | Version |
|------|--------|---------|
| [kinesis\_label](#module\_kinesis\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
| [log\_group\_label](#module\_log\_group\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
| [subnet\_label](#module\_subnet\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
| [subscription\_filter\_label](#module\_subscription\_filter\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
| [vpc\_label](#module\_vpc\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.1 |
## Resources
| Name | Type |
|------|------|
| [aws_cloudwatch_log_group.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_log_group) | resource |
| [aws_cloudwatch_log_subscription_filter.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudwatch_log_subscription_filter) | resource |
| [aws_flow_log.eni](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/flow_log) | resource |
| [aws_flow_log.subnets](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/flow_log) | resource |
| [aws_flow_log.vpc](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/flow_log) | resource |
| [aws_iam_role.kinesis](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource |
| [aws_iam_role.log](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role) | resource |
| [aws_iam_role_policy.kinesis](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy) | resource |
| [aws_iam_role_policy.log](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_role_policy) | resource |
| [aws_kinesis_stream.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/kinesis_stream) | resource |
| [aws_iam_policy_document.kinesis](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.kinesis_assume](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.log](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.log_assume](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_region.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/region) | data source |
## Inputs
| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| [attributes](#input\_attributes) | Additional attributes (e.g. `policy` or `role`) | `list(string)` | `[]` | no |
| [delimiter](#input\_delimiter) | Delimiter to be used between `name`, `namespace`, `stage`, etc. | `string` | `"-"` | no |
| [enabled](#input\_enabled) | Set to false to prevent the module from creating anything | `string` | `"true"` | no |
| [encryption\_type](#input\_encryption\_type) | GUID for the customer-managed KMS key to use for encryption. The only acceptable values are NONE or KMS | `string` | `"NONE"` | no |
| [eni\_ids](#input\_eni\_ids) | IDs of ENIs | `list(string)` | `[]` | no |
| [filter\_pattern](#input\_filter\_pattern) | Valid CloudWatch Logs filter pattern for subscribing to a filtered stream of log events | `string` | `"[version, account, eni, source, destination, srcport, destport, protocol, packets, bytes, windowstart, windowend, action, flowlogstatus]"` | no |
| [kms\_key\_id](#input\_kms\_key\_id) | ID of KMS key | `string` | `""` | no |
| [name](#input\_name) | Name (e.g. `bastion` or `db`) | `string` | `""` | no |
| [namespace](#input\_namespace) | Namespace (e.g. `cp` or `cloudposse`) | `string` | n/a | yes |
| [region](#input\_region) | AWS region | `string` | `""` | no |
| [retention\_in\_days](#input\_retention\_in\_days) | Number of days you want to retain log events in the log group | `string` | `"30"` | no |
| [retention\_period](#input\_retention\_period) | Length of time data records are accessible after they are added to the stream | `string` | `"48"` | no |
| [shard\_count](#input\_shard\_count) | Number of shards that the stream will use | `string` | `"1"` | no |
| [shard\_level\_metrics](#input\_shard\_level\_metrics) | List of shard-level CloudWatch metrics which can be enabled for the stream | `list` |
[
"IncomingBytes",
"OutgoingBytes"
]
| no |
| [stage](#input\_stage) | Stage (e.g. `prod`, `dev`, `staging`) | `string` | n/a | yes |
| [subnet\_ids](#input\_subnet\_ids) | IDs of subnets | `list(string)` | `[]` | no |
| [tags](#input\_tags) | Additional tags (e.g. map(`BusinessUnit`,`XYZ`) | `map(string)` | `{}` | no |
| [traffic\_type](#input\_traffic\_type) | Type of traffic to capture. Valid values: ACCEPT,REJECT, ALL | `string` | `"ALL"` | no |
| [vpc\_id](#input\_vpc\_id) | ID of VPC | `any` | n/a | yes |
## Outputs
| Name | Description |
|------|-------------|
| [eni\_flow\_ids](#output\_eni\_flow\_ids) | Flow Log IDs of ENIs |
| [kinesis\_arn](#output\_kinesis\_arn) | Kinesis Stream ARN |
| [kinesis\_id](#output\_kinesis\_id) | Kinesis Stream ID |
| [kinesis\_name](#output\_kinesis\_name) | Kinesis Stream name |
| [kinesis\_shard\_count](#output\_kinesis\_shard\_count) | Kinesis Stream Shard count |
| [log\_group\_arn](#output\_log\_group\_arn) | ARN of the log group |
| [subnet\_flow\_ids](#output\_subnet\_flow\_ids) | Flow Log IDs of subnets |
| [vpc\_flow\_id](#output\_vpc\_flow\_id) | VPC Flow Log ID |
## Related Projects
Check out these related projects.
- [terraform-aws-ecs-web-app](https://github.com/cloudposse/terraform-aws-ecs-web-app) - Terraform module that implements a web app on ECS and supporting AWS resources.
- [terraform-aws-cloudtrail-cloudwatch-alarms](https://github.com/cloudposse/terraform-aws-cloudtrail-cloudwatch-alarms) - Terraform module for creating alarms for tracking important changes and occurances from cloudtrail.
- [prometheus-to-cloudwatch](https://github.com/cloudposse/prometheus-to-cloudwatch) - Utility for scraping Prometheus metrics from a Prometheus client endpoint and publishing them to CloudWatch
- [terraform-aws-cloudwatch-logs](https://github.com/cloudposse/terraform-aws-cloudwatch-logs) - Terraform Module to Provide a CloudWatch Logs Endpoint
- [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
- [terraform-aws-ecs-cloudwatch-autoscaling](https://github.com/cloudposse/terraform-aws-ecs-cloudwatch-autoscaling) - Terraform module to autoscale ECS Service based on CloudWatch metrics
- [terraform-aws-ecs-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-ecs-cloudwatch-sns-alarms) - Terraform module to create CloudWatch Alarms on ECS Service level metrics.
- [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
- [terraform-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-ec2-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-ec2-cloudwatch-sns-alarms) - Terraform module that configures CloudWatch SNS alerts for EC2 instances
- [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-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-alb-target-group-cloudwatch-sns-alarms](https://github.com/cloudposse/terraform-aws-alb-target-group-cloudwatch-sns-alarms) - Terraform module to create CloudWatch Alarms on ALB Target level metrics.
- [terraform-aws-sns-lambda-notify-slack](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.
> [!TIP]
> #### Use Terraform Reference Architectures for AWS
>
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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-cloudwatch-flow-logs/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-cloudwatch-flow-logs/?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-cloudwatch-flow-logs&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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