Code, Cloud Computing and Docker
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
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
FROM containx/beethoven to your Dockerfile add your template, config options and deploy!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 released in the open source community and didn’t see much. I wanted to be able to lock down Marathon based on the following requirements:
As a result of these requirements I decided to create the Marathon-LDAP Plugin. This article will cover how easy it is to secure your Marathon clusters against an LDAP server.
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 engineering handles processes to be alignment with automation and continuous delivery of many services.
I had an epiphany when talking to a friend recently… For whatever reason I don’t use any of the above technologies for my personal blogs, websites and open-source projects. Yes, I contribute to the Docker project and have written management tools to handle blue/green deployments but I’m not using them for my own (outside-of-work) coding.
Why you might ask? I guess I was probably too exhausted from working 12+ hour days and leading my existing projects after hours to put the time in. Rackspace is one of my sponsors and along with that I receive a generous cloud credit each month. I’ve been using a fraction of what I could possibly use from them.
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 latest binary regardless of their platform.
There are many ways to do this and after researching various cross-compilation options and a place to store built binaries I settled on Goxc for compilation and Bintray to store the final binaries and packages. [Read more…]
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:
${PROPERTY} substitution within the application descriptor. For example you can inject values from the build system directly into the template which resolves and deploys
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 leading people for over seven years now and have learned some valuable traits as a manager to develop skills, promote culture, teamwork, velocity and keep the team challenged.
Here are some tips I have formulated that I have found effective:
A good mentor-mentee relationship provides employees someone who will share their professional knowledge and expertise. [Read more…]
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 level reasons why I love Go.
Go is an extremely easy language to learn. Go is a C-like language, both in it looks like C and allows you to reference C libraries. If your looking into learning Go I suggest going through A Tour of Go which can be done within a few hours. Another good reference is reading Pointers in Go