Create a set of sane EFS CloudWatch alerts for monitoring the health of an EFS resource.

area	metric	comparison operator	threshold	rationale
Storage	BurstCreditBalance	<	192000000000	192 GB in Bytes (last hour where you can burst at 100 MB/sec)
Storage	PercentIOLimit	>	95	When the IO limit has been exceeded, the system performance drops.

Tip

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Example of running atmos to manage infrastructure from our Quick Start tutorial.

Examples

resource "aws_efs_file_system" "default" {
  creation_token = "app"
}

module "efs_alarms" {
  source        = "git::https://github.com/cloudposse/terraform-aws-efs-cloudwatch-sns-alarms.git?ref=master"
  filesystem_id = "${aws_efs_file_system.default.id}"
}

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

No requirements.

Providers

Name	Version
aws	n/a

Modules

No modules.

Resources

Name	Type
aws_cloudwatch_metric_alarm.burst_credit_balance_too_low	resource
aws_cloudwatch_metric_alarm.percent_io_limit_too_high	resource
aws_sns_topic.default	resource
aws_sns_topic_policy.default	resource
aws_caller_identity.default	data source
aws_iam_policy_document.sns_topic_policy	data source

Inputs

Name	Description	Type	Default	Required
add_sns_policy	Attach a policy that allows the notifications through to the SNS topic endpoint	string	"false"	no
additional_endpoint_arns	Any alert endpoints, such as autoscaling, or app escaling endpoint arns that will respond to an alert	list(string)	[]	no
burst_credit_balance_threshold	The minimum number of burst credits that a file system should have.	string	"192000000000"	no
filesystem_id	The EFS file system ID that you want to monitor	string	n/a	yes
percent_io_limit_threshold	IO Limit threshold	string	"95"	no
sns_topic_arn	An SNS topic ARN that has already been created. Its policy must already allow access from CloudWatch Alarms, or set add_sns_policy to true	string	""	no

Outputs

Name	Description
sns_topic_arn	An SNS topic ARN that has already been created. Its policy must already allow access from CloudWatch Alarms, or set add_sns_policy to true

Related Projects

Check out these related projects.

• terraform-aws-efs-backup - Terraform module designed to easily backup EFS filesystems to S3 using DataPipeline
• terraform-aws-efs - Terraform Module to define an EFS Filesystem (aka NFS)
• terraform-aws-sns-lambda-notify-slack - Terraform module to provision a lambda function that subscribes to SNS and notifies to Slack.
• terraform-aws-sns-topic-notify - Terraform Module to notify SNS topic.

Tip

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License

Preamble to the Apache License, Version 2.0

Complete license is available in the LICENSE file.

Licensed to the Apache Software Foundation (ASF) under one
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