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Wavefront Serverless Rollback Plugin Demo

This is a demo for the Wavefront rollback plugin.

How it works:

• This Lambda function will send mock metric data to Wavefront
• The plugin uses the wavefrontRollbackCondition ts query in severless.yml to determine the health of your function
• If the alert condition is fulfilled it will trigger rollback the Lambda function
• After rolling back, the Lambda function will delete the alert and itself

Installing and Running

From NPM

• Switch to your own serverless service project directory
• Run npm install -g wavefront-serverless-rollback-plugin to install plugin
• Add wavefront-serverless-rollback-plugin to plugin list in your serverless.yml
• Run serverless deploy to deploy your service with the rollback function

From Cloned Plugin Repo

Assuming you have cloned plugin to [path/to/wavefront-serverless-rollback-plugin]

• Switch to cloned directory
• Install plugin with npm install [path/to/wavefront-serverless-rollback-plugin]
• Setup the Wavefront proxy's host and port in serverless.yml
• Setup the Wavefront plugin options in serverless.yml, including the API key
• Run serverless deploy
• Test the service using the endpoint reported by serverless e.g. curl https://931s566921.execute-api.us-east-1.amazonaws.com/dev/process

Setup Wavefront Proxy

• Install a Wavefront proxy using method described here
• Setup the proxy to be able to collect log data as described here
• Add grok pattern (match this to your actual metric pattern):

counters:
   - pattern: 'demoapp.%{GREEDYDATA:metricName} %{NUMBER:status} %{NUMBER:time} source=%{GREEDYDATA:funcName}'
     metricName: 'demoapp.%{metricName}'