aws-vpc-flow-log-appender is a sample project that enriches AWS VPC Flow Log data with additional information, primarily the Security Groups associated with the instances to which requests are flowing. This project makes use of several AWS services, including Elasticsearch, Lambda, and Kinesis Firehose. These must be setup and configured in the proper sequence for the sample to work as expected. Here, we describe deployment of the Lambda components only. For details on deploying and configuring other services, please see the accompanying blog post.