terraform-aws-cloudwatch-flow-logs

Terraform module for enabling flow logs for vpc and subnets.

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!

Usage

IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases. Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.

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}"
}

Makefile Targets

Available targets:

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

Inputs

Name	Description	Type	Default	Required
attributes	Additional attributes (e.g. `policy` or `role`)	list	`<list>`	no
delimiter	Delimiter to be used between `name`, `namespace`, `stage`, etc.	string	`-`	no
enabled	Set to false to prevent the module from creating anything	string	`true`	no
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	IDs of ENIs	list	`<list>`	no
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	ID of KMS key	string	``	no
name	Name (e.g. `bastion` or `db`)	string	``	no
namespace	Namespace (e.g. `cp` or `cloudposse`)	string	-	yes
region	AWS region	string	``	no
retention_in_days	Number of days you want to retain log events in the log group	string	`30`	no
retention_period	Length of time data records are accessible after they are added to the stream	string	`48`	no
shard_count	Number of shards that the stream will use	string	`1`	no
shard_level_metrics	List of shard-level CloudWatch metrics which can be enabled for the stream	list	`<list>`	no
stage	Stage (e.g. `prod`, `dev`, `staging`)	string	-	yes
subnet_ids	IDs of subnets	list	`<list>`	no
tags	Additional tags (e.g. map(`BusinessUnit`,`XYZ`)	map	`<map>`	no
traffic_type	Type of traffic to capture. Valid values: ACCEPT,REJECT, ALL	string	`ALL`	no
vpc_id	ID of VPC	string	-	yes

Outputs

Name	Description
eni_flow_ids	Flow Log IDs of ENIs
kinesis_arn	Kinesis Stream ARN
kinesis_id	Kinesis Stream ID
kinesis_name	Kinesis Stream name
kinesis_shard_count	Kinesis Stream Shard count
log_group_arn	ARN of the log group
subnet_flow_ids	Flow Log IDs of subnets
vpc_flow_id	VPC Flow Log ID

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Related Projects

Check out these related projects.

terraform-aws-ecs-web-app - Terraform module that implements a web app on ECS and supporting AWS resources.
terraform-aws-cloudtrail-cloudwatch-alarms - Terraform module for creating alarms for tracking important changes and occurances from cloudtrail.
prometheus-to-cloudwatch - Utility for scraping Prometheus metrics from a Prometheus client endpoint and publishing them to CloudWatch
terraform-aws-cloudwatch-logs - Terraform Module to Provide a CloudWatch Logs Endpoint
terraform-aws-efs-cloudwatch-sns-alarms - Terraform module that configures CloudWatch SNS alerts for EFS
terraform-aws-ecs-cloudwatch-autoscaling - Terraform module to autoscale ECS Service based on CloudWatch metrics
terraform-aws-ecs-cloudwatch-sns-alarms - Terraform module to create CloudWatch Alarms on ECS Service level metrics.
terraform-aws-sqs-cloudwatch-sns-alarms - Terraform module for creating alarms for SQS and notifying endpoints
terraform-aws-elasticache-cloudwatch-sns-alarms - Terraform module that configures CloudWatch SNS alerts for ElastiCache
terraform-aws-ec2-cloudwatch-sns-alarms - Terraform module that configures CloudWatch SNS alerts for EC2 instances
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 - Terraform module for creating a set of Lambda alarms and outputting to an endpoint
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 - Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack.

Help

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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.

Fork the repo on GitHub
Clone the project to your own machine
Commit changes to your own branch
Push your work back up to your fork
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

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.

Trademarks

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

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