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Lambda function to retrieve Cloudflare's IP address list and update the specified security group

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cloudflare-ip-security-group-update

This Lambda function to retrieve Cloudflare's IP address list and update an AWS security group was originally written by John McCracken (johnmccuk@gmail.com).

Instructions

The Lambda uses the Python 2.7 runtime and requires the following enviroment variables:

  • SECURITY_GROUP_ID - the group ID for the specified security group
  • PORTS_LIST - comma-separated list of ports e.g. 80,443. If none is specified, the default is port 80.

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Lambda function to retrieve Cloudflare's IP address list and update the specified security group

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