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Simple enumeration in Golang using Stringer

May 2, 2017 By jeremy Leave a Comment

Golang, a strong-typed language allows the ability to group constants together in parenthesis with the iota keyword. But coupling that with a string representation can add extra boilerplate code. Let’s first take a look at how constants and enums are created in Go.

A recap on constants and enums in Go…

For example, as constants by placing them in parenthesis:

const (
  Dog  = 0
  Cat  = 1
  Bird = 2
)

Using the iota keyword to make an enum:

const (
  Dog = iota
  Cat
  Bird

Discoverable HTTP Load Balancing in Mesos/Marathon using Beethoven and NGINX

October 8, 2016 By jeremy 1 Comment

Beethoven is an application written in Go that automatically configures Nginx for applications deployed on Marathon/Mesos. Beethoven runs in Docker and can be managed by Marathon to provide HTTP load balancing.

Feature Highlights

Uses NGINX for HTTP based load balancing
Handlebars for powerful template parsing
Zero downtime load balancing when changes occur
Allows stream filtering so NGINX re-configuration is only triggered by RegEx patterns
Listens to the realtime SSE from Marathon to quickly change upstreams based on application/tasks state changes
RESTful endpoints for current status
Flexible configuration options (local config, spring-cloud configuration remote configuration fetching and ENV variables)
Easy to get started add a FROM containx/beethoven to your Dockerfile add your template, config options and deploy!

A look at the Beethoven container…

Securing Mesosphere Marathon using the Marathon-LDAP Plugin

April 19, 2016 By jeremy 5 Comments

Mesosphere Marathon has adapted their plugin interface, offering two extension points. This includes the ability to have custom plugins handling UI/Rest based authentication as well as securing operations. I looked around to see what has been … [Continue reading]

Eating my own dog food: Building a PaaS

April 5, 2016 By jeremy Leave a Comment

For the past few years I have been a key game changer in moving my employers into SOA/Microservices architecture. Along with this I have pushed Mesos/Marathon and Docker as the clustering/container technology. I have completely changed the way … [Continue reading]

Releasing cross-platform Go binaries using Goxc and BinTray in 5 minutes

November 29, 2015 By jeremy 1 Comment

I see many Go projects on GitHub that mention publicly releasing binaries for their projects in the future when time permits. After releasing Depcon and Docker Volume Netshare I wanted an easy way to release updates so users could quickly grab the … [Continue reading]

Introducing Depcon: The fastest way to deploy Docker to Mesos/Marathon

November 3, 2015 By jeremy Leave a Comment

Depcon is the fastest way to start deploying Docker containers to a Mesos/Marathon cluster. Here are a list of features to help you get started using Depcon in your deployment pipeline: Native Binary: Written in Go with binary support for … [Continue reading]

New to Dev Management? Five powerful tips to becoming a great leader

October 30, 2015 By jeremy Leave a Comment

I was asked by a former colleague who was recently promoted to a manager for tips on being an effective leader. This was a great question and let me self reflect on my styles, beliefs and motivation within my own career. I have been managing and … [Continue reading]

Six reasons why I love Go

October 28, 2015 By jeremy 4 Comments

The past 15 years of my career most of my work has been in Java, C++ or Objective-C for IOS applications. This past year I have been working a lot in Go and have had many of my Java peers ask me what makes Go so great to work with. Here's 6 high … [Continue reading]