aws-lambda-container-monitoring

Monitors number of active AWS Lambda containers and reports to CloudWatch as a custom metric.

##Installation

• Create IAM Role (see IAM.policy)
• Install and package zip file with source code
  • npm install && npm run package
• Create Lambda function
  • Runtime: nodejs4.3
  • Timeout: 300
  • Memory: 128
  • Handler: src/index.handler
  • Attach newly created IAM Role
  • Upload source package
  • Setup 1 minute scheduling

##Options In src/index.js:

var options = {
    cloudWatchMetricNamespace: 'Lambda/ContainerMonitoring', // CloudWatch metric namespace
    metricName: 'ActiveContainers', // CloudWatch metric name
    activeLambdaOffsetMillis: 10 * 60 * 1000 // Time in millis that a container is considered active
};

##How it works Read more about hos it works here: https://bynordenfelt.se/articles/2016/08/lambda-container-monitoring/