AWS-Clean Untagged Resources

This script will notify you on Slack and terminate/stop untagged EC2/RDS resources!

📚 Usage

The project is using Lambda to periodically check your AWS account for untagged or not persistent EC2, RDS & ECS with Fargate resources. It has 3 possible behavior:

• NOTIFY: This mode will scan for untagged EC2/RDS instances and send a message on your Slack workspace
• STOP: This mode will scan for untagged EC2/RDS instances and stop them
• TERMINATE: This mode will scan for untagged EC2/RDS instances and terminate them

The Lambda will also check for resources tagged with a lifetime tag to be able to define from when a resource should be terminated. For example if we have the tag Lifetime=10, it means that the resource should live at least 10 days and the lambda won't stop/terminate this resource until the lifetime has been expired or Lifetime=yyyy-mm-dd to directly define an expiration date for the resource.

Package

Before deploying the lambda function you'll have to make a zip of your code like the following:

$ cd aws-clean-untagged-resources

Make sure that you've installed dependencies, if not you can use the following command:

$ pip3 install --target ./package -r requirements.txt

You're now able to zip your packages (you can skip this part if packages were already zipped:

cd package
zip -r ../../aws-clean-untagged-resources.zip .
cd ..

Now everytime you do some changes on your code you will have to zip your code like the following:

zip -g ../aws-clean-untagged-resources.zip *.py

Documentation sources: https://docs.aws.amazon.com/lambda/latest/dg/python-package.html#python-package-create-package-with-dependency

🚀 Deploy

You will need a S3 bucket in order to deploy the Lambda with Cloudformation You will need to create a Slack webhook on your slack workspace

To deploy the function, replace the variables in the following commands:

$ aws cloudformation package --template-file template.yml --s3-bucket YOUR_DEPLOYMENT_BUCKET --s3-prefix YOUR_S3_PREFIX --output-template-file output.yaml
$ aws cloudformation deploy --template-file output.yaml --stack-name STACK_NAME --capabilities CAPABILITY_NAMED_IAM --parameter-overrides SlackWebHook=YOUR_SLACK_WEBHOOK_URL ScheduleExpression="cron(0 16 ? * THU *)" PersistentTagKey=MY_RESOURCE_TAG_NAME PersistentTagValue=MY_RESOURCE_TAG_VALUE LifetimeTagKey=LIFETIME_TAG_KEY Behavior=notify|stop|terminate AwsRegions=AWS_REGIONS

Usage example: If you want to notify on Slack about untagged resources on Thursday at 4pm and stop them on Sunday at 4pm you will need to deploy 2 stacks with the following:

$ aws cloudformation package --template-file template.yml --s3-bucket YOUR_DEPLOYMENT_BUCKET --s3-prefix YOUR_S3_PREFIX --output-template-file output.yaml
$ aws cloudformation deploy --template-file output.yaml --stack-name STACK_NAME-notify --capabilities CAPABILITY_NAMED_IAM --parameter-overrides SlackWebHook=YOUR_SLACK_WEBHOOK_URL ScheduleExpression="cron(0 16 ? * THU *)" PersistentTagKey=MY_RESOURCE_TAG_NAME PersistentTagValue=MY_RESOURCE_TAG_VALUE Behavior=notify AwsRegions=AWS_REGION1,AWS_REGION2 LifetimeTagKey=LIFETIME_TAG_KEY
$ aws cloudformation deploy --template-file output.yaml --stack-name STACK_NAME-stop --capabilities CAPABILITY_NAMED_IAM --parameter-overrides SlackWebHook=YOUR_SLACK_WEBHOOK_URL ScheduleExpression="cron(0 16 ? * SUN *)" PersistentTagKey=MY_RESOURCE_TAG_NAME PersistentTagValue=MY_RESOURCE_TAG_VALUE Behavior=stop AwsRegions=AWS_REGION1,AWS_REGION2 LifetimeTagKey=LIFETIME_TAG_NAME

💣 Destroy

$ aws cloudformation delete-stack STACK_NAME

🤝 Missing a specific feature?

Feel free to ask for the features you want! Our teams will be happy to add them!

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✏️ Author

👤 Trackit

• Website: trackit.io

👥 About us

We are an Amazon Web Services Advanced Consulting Partner specializing in cloud management, consulting, and software development solutions based in Venice, CA.