Other articles


  1. CloudFormation parameters

    Sometimes you want to deploy your CloudFormation templates in a way that results in specific and different configuration per stack. Perhaps you deploy to a production stack and a development stack and need to flag a different logging value. Maybe your stacks connect to different databases, or expect a different …

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  2. Lambda function environment variables with CloudFormation

    Automated deployments are a good idea, if only because deploying is tedious. Being able to reproduce something confidently, easily, and quickly is priceless.

    I've recently had the need to deploy Lambda functions with some included parameters, so went out to learn about passing variables to CloudFormation and consuming those values …

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  3. 5 Minute Rest API with Docker

    Docker is a wonderful technology to manage environment consistency. It delivers on the promise of Vagrant without having to use Vagrant. All the things that you thought you’d be able to do with virtual machines are easy with Docker.

    In this post I wanted to see how long it …

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  4. Debugging Spark logs with YARN

    Debugging Spark can be quite painful. The error that you see in your application, or even in your job, might not reflect the underlying problem. Here’s how I dig into the executor logs to find what (might) be really happening.

    From the YARN job list, find your job. If …

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