Docker in Production — What We’ve Learned Launching Over 300 Million Containers


Docker in Production at Iron.io

Earlier this year, we made a decision to run every task on IronWorker inside its own Docker container. Since then, we’ve run over 300,000,000 programs inside of their own private Docker containers on cloud infrastructure.

Now that we’ve been in production for several months, we wanted to take the opportunity to share with the community some of the challenges we faced in running a Docker-based infrastructure, how we overcame them, and why it was worth it.

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New FFmpeg IronWorker Stack For Easy Video Processing

FFmpeg is the leading cross-platform solution to record, convert and stream audio and video. Dealing with audio and video can eat up resources, making the activity a great fit for IronWorker by moving the heavy lifting to the background.

In the past, usage of FFmpeg with IronWorker would require that our users include and install the dependency within each worker environment. In order to streamline that process for developers, we’ve included FFmpeg in an IronWorker stack as a custom runtime environment specifically meant for video processing. Continue reading “New FFmpeg IronWorker Stack For Easy Video Processing”

How Docker Helped Us Achieve the (Near) Impossible


Docker Solved a Key Problem

Ever since we started Iron.io, we’ve been trying to solve a problem: how to keep our IronWorker containers up to date with newer language runtimes and Linux packages. For the past two years, IronWorker has been using the same, unchanged run-time environment. That is until a couple of weeks ago when we released custom language environments.

Since the inception of our service, we have been using a single container that contained a set of language environments and binary packages – Ruby, Python, PHP, Java, .NET, and the other languages we support as well as code libraries such as ImageMagick, SoX, and others. Continue reading “How Docker Helped Us Achieve the (Near) Impossible”

How We Went from 30 Servers to 2: Go

When we built the first version of IronWorker, about 3 years ago, it was written in Ruby and the API was built on Rails. It didn’t take long for us to start getting some pretty heavy load and we quickly reached the limits of our Ruby setup. Long story short, we switched to Go. For the long story, keep reading, here’s how things went down.
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