https://github.com/EugeneK6S/route53-cleanup

Lambda function to clean up stale Route53 entries
https://github.com/EugeneK6S/route53-cleanup

lambda route53

Last synced: 3 months ago
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Lambda function to clean up stale Route53 entries

• Host: GitHub
• URL: https://github.com/EugeneK6S/route53-cleanup
• Owner: EugeneK6S
• Created: 2018-02-22T09:18:47.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-02-22T12:36:40.000Z (almost 7 years ago)
• Last Synced: 2024-08-04T08:06:00.207Z (7 months ago)
• Topics: lambda, route53
• Language: Python
• Size: 4.88 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Lambda function for Route53 cleanup

===================================

Main logic is forked from [fsalum/scripts](https://github.com/fsalum/scripts), reworked a bit.

This Lambda will get the list of all HostedZones per account, iterate over them and clean up stale Route53 entries.

The stale state is defined by: 

- correlating IP addresses (private and public) of running EC2 instances with A entries in Route53

- correlating public and private DNS of EC2 intances with CNAME entries in Route53

# USAGE (as Lambda):

1. Clone the repo

2. Initialize Virtualenv (highly advised)

```

virtualenv .

```

3. Install requirements

```

pip install -r requirements.txt

```

4. Put dependencies into deployment ZIP

```

cd ./lib/python2.7/site-packages

zip -ur10 ~// *

```

5. Put main.py into deployment ZIP

```

zip -u ~// main.py

```

6. Register Lambda function:

```

aws lambda create-function \

--region  \

--function-name  \

--zip-file fileb:/// \

--role arn:aws:iam: \

--handler main.lambda_handler \

--runtime python2.7 \

--timeout 60 \

--memory-size 128 \

--profile 

```

7. Additionally, I'd advise setting up CloudWatch event, that will trigger Lambda on schedule.

*TODO*: move to boto3 or better Golang.