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wtf is cerberus-cloudfront-lambda?

fieldju/cerberus-cloudfront-lambda — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2016-12-06

JavaAudience · ops devopsComplexity · 4/5DormantSetup · hard

TL;DR

An AWS Lambda function that reads CloudFront logs and automatically blocks IP addresses that make too many requests, protecting web apps from bots and brute-force attacks.

Mindmap

mindmap
  root((cerberus-cloudfront-lambda))
    Inputs
      CloudFront access logs
      Rate limit thresholds
    Outputs
      IP blocklist entries
      Google Analytics events
    Use Cases
      Auto-block abusive IPs
      Protect Cerberus deployment
      Track API usage
    Tech Stack
      Java
      AWS Lambda
      CloudFront
      Google Analytics
    Audience
      DevOps engineers

Code map

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filefunction / class

Why would anyone build with this?

REASON 1

Deploy this Lambda function to automatically block IP addresses that exceed a request-rate threshold on your CloudFront-fronted app.

REASON 2

Protect a Cerberus secrets-management deployment from bot traffic and brute-force login attempts.

REASON 3

Send API usage events to Google Analytics via the optional analytics processor for visibility into traffic patterns.

REASON 4

Run automatic, around-the-clock log monitoring without manually reviewing CloudFront logs to find abusive IPs.

What's in the stack?

JavaAWS LambdaCloudFrontGoogle Analytics

How it stacks up

fieldju/cerberus-cloudfront-lambdaasutosh936/job-finder-appasutosh936/spring-boot
Stars—0—
LanguageJavaJavaJava
Last pushed2016-12-06—2016-07-02
MaintenanceDormant—Dormant
Setup difficultyhardmoderatemoderate
Complexity4/52/53/5
Audienceops devopsdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · hard Time to first run · 1h+

Requires an AWS account, CloudFront logging set up, and compiling a fat jar for Lambda deployment.

License is not stated in the available content.

Yoink these prompts

Prompt 1
Help me package cerberus-cloudfront-lambda into a fat jar and configure it as an AWS Lambda function triggered by CloudFront log delivery.
Prompt 2
Explain how the rate-limiter processor in cerberus-cloudfront-lambda decides when to blocklist an IP address.
Prompt 3
Show me how to enable the optional analytics processor to send API events to Google Analytics.
Prompt 4
Walk me through wiring CloudFront log output to trigger this Lambda function automatically.
Prompt 5
What configuration do I need to adjust the rate-limiting threshold in cerberus-cloudfront-lambda?

Frequently asked questions

wtf is cerberus-cloudfront-lambda?

An AWS Lambda function that reads CloudFront logs and automatically blocks IP addresses that make too many requests, protecting web apps from bots and brute-force attacks.

What language is cerberus-cloudfront-lambda written in?

Mainly Java. The stack also includes Java, AWS Lambda, CloudFront.

Is cerberus-cloudfront-lambda actively maintained?

Dormant — no commits in 2+ years (last push 2016-12-06).

What license does cerberus-cloudfront-lambda use?

License is not stated in the available content.

How hard is cerberus-cloudfront-lambda to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is cerberus-cloudfront-lambda for?

Mainly ops devops.

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