This article demonstrates how you can quickly rotate your AWS keys in 2 minutes. Anything longer and I’m certain that nobody will do it. This is important as you should be in the habit of rotating these credentials often. Personally, I set reminders to change my keys every 30 days. Caveats You must have only one set of access keys created. Your IAM policy must allow you to manage your own keys. You must know where you store your AWS credentials (everyone is a bit different here). Key Rotation Process The process is thus: ...

I purchased business cards awhile back but I never wrote anything about it. They are personal business cards, I needed them for situations where I am meeting new people. I am actually fairly shy about giving them out, it is surprising that some people think business cards show how outdated you are, yet they are still used quite a lot in other countries and non-tech industries. Here is what the cards look like: ...

For the past few years in the software development world, there has been a push to break-up monolithic applications into microservices. These smaller pieces of code perform one task and contain a small amount of code. Often, these microservices are contained within Docker images and reside on shared infrastructure. At first, it seems that there isn’t much of a place for infrastructure in a microservices environment. But I want to introduce the concept of nanoservices to everyone. These are even smaller than microservices and contain basic logic that infrastructure teams manage on a daily basis. ...

Update 2016-09-27: The AWS CloudFormation team has just released a new feature that allows you to write your templates in YAML. They even improved on the problems I outlined in this article by allowing shorthand versions of the intrinsic functions. I now suggest everyone to move to YAML as it is the clear winner. Working with CloudFormation is great once it finally clicks in your brain that you can create many AWS resources and then delete all of them to make cleaning up super easy. Other than the steep learning curve when a person first learn CloudFormation, the next annoyance people have is that they have to write in JSON. ...

A couple months ago I removed the Disqus comment section from this website. In this short post, I thought I’d explain why I did that and what I hope the future holds for commenting in general. Transparency is refreshing and I like to share the thoughts behind my actions whenever possible, in case anyone wants to do the same in the future. I must confess that this site is mainly for my purposes. I use it as a platform for my rants – err, I mean I use it to hone my writing skills so that I can tell a better story. Thus I rarely, if ever, received a comment on my articles. If something isn’t working, then I see that as an opportunity for change. In this case, I removed the comments altogether and this site became fully static. ...

🎵… sitting in a tree…🎵 For both my personal projects, and projects at Unbounce, I use Ansible to create CloudFormation stacks. This brings some amazing user experience improvements for people not used to working with CloudFormation and its asynchronous behaviour. Before I show some of the benefits, I will explain what each piece of the technology is doing. What is Ansible? Ansible is a configuration and orchestration tool for servers and services. People primarily use Ansible to configure packages, libraries, and services on Linux machines (though other operating systems are supported). It is focused on idempotency, which is to ensure that running the Ansible playbook once will change the system, but subsequent runs will not effect any change. ...

A recent development in my life is removing the daily caffeine intake that normally happens. Previously, I consumed two cups of coffee in the morning, and rarely drank any sodas (caffeinated or not). This supplied me with enough caffeine to keep going throughout the day, or so I thought. I realize that just 2 cups a day is not a lot compared to some people, but my focus was on the habitual nature rather than the dosage. ...

Recently at Unbounce we have been talking about what it takes to move between the ranks of junior, intermediate, and senior developer 1. Some very good discussion came out of it, but one key piece was left out for my personal interest 2: where do developers go after becoming senior? At a certain point in the career of a software developer they are told to make a choice: keep programming and developing a deeper understanding of software (The Guru), or go into management and lead software developers to the possible detriment of deep programming skills (The Manager). Over the past decade I have found myself revisiting this dilemma but have never spoken about my dislike for it. I view it now as a false dilemma but, that being said, it is a common practice to take one of two paths. ...

Don’t hate. Create. It is easy to feed the part of you that hates the broken and inefficient things you see every day. Instead of feeding that negative emotion, you can in turn convert the feeling into an opportunity to create something better. If everything worked perfectly and was the most efficient solution, there would be little work to do and life would get quite boring. It is easier to write in red than black. ...

Recently I updated the code for this website to use Makefiles and rely less on one-off shell scripts. The reason for this change was to improve my write-test-release workflow. I figured make is available on all of my computers and it serves as a perfect minimal orchestration tool. I now type make deploy instead of ./deploy.sh to push a new version of my website up to production. While this may not seem like a lot, it reduced the number of files in my directory. ...