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What is cerberus-java-client?

fieldju/cerberus-java-client — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2017-01-20

JavaAudience · developerComplexity · 2/5DormantSetup · moderate

In one sentence

A Java library that securely fetches secrets and credentials from Nike's Cerberus system at runtime, instead of hardcoding them in your code.

Mindmap

mindmap
  root((cerberus-java-client))
    Inputs
      Cerberus server URL
      Auth token or IAM role
      Lambda function id
    Outputs
      Retrieved secrets
      Configured client
    Use Cases
      Fetch secrets in Java apps
      Authenticate via EC2 IAM role
      Get secrets in Lambda functions
    Tech Stack
      Java
      Cerberus
      AWS Lambda
      Vault
    Audience
      Backend developers

Code map

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filefunction / class

What do people build with it?

USE CASE 1

Retrieve passwords, API keys, or tokens from Cerberus at runtime instead of hardcoding them in Java source.

USE CASE 2

Authenticate automatically to Cerberus from an AWS EC2 instance using its IAM role, with no manual token needed.

USE CASE 3

Fetch secrets on-demand inside an AWS Lambda function by passing the function's identifier to the client.

USE CASE 4

Rotate credentials in Cerberus without redeploying the applications that consume them.

What is it built with?

JavaCerberusAWS LambdaVault

How does it compare?

fieldju/cerberus-java-clientasutosh936/job-finder-appasutosh936/spring-boot
Stars—0—
LanguageJavaJavaJava
Last pushed2017-01-20—2016-07-02
MaintenanceDormant—Dormant
Setup difficultymoderatemoderatemoderate
Complexity2/52/53/5
Audiencedeveloperdeveloperdeveloper

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

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires access to a running Cerberus server and either an auth token or an AWS EC2/Lambda IAM role.

License is not stated in the available content.

Copy-paste prompts

Prompt 1
Show me how to configure cerberus-java-client with an environment variable and auth token to retrieve a secret.
Prompt 2
Explain how cerberus-java-client authenticates automatically using an EC2 instance's IAM role.
Prompt 3
Help me set up cerberus-java-client inside an AWS Lambda function to fetch secrets on cold start.
Prompt 4
What's the difference between using cerberus-java-client with a static token versus IAM-based auth?
Prompt 5
Walk me through the classes cerberus-java-client provides for configuration and credential lookup.

Frequently asked questions

What is cerberus-java-client?

A Java library that securely fetches secrets and credentials from Nike's Cerberus system at runtime, instead of hardcoding them in your code.

What language is cerberus-java-client written in?

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

Is cerberus-java-client actively maintained?

Dormant — no commits in 2+ years (last push 2017-01-20).

What license does cerberus-java-client use?

License is not stated in the available content.

How hard is cerberus-java-client to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is cerberus-java-client for?

Mainly developer.

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