DevOps as a practice has largely grown from the need to manage infrastructure and configuration for large scale applications. Frequently this has led to the technical choice of fleets of Linux-based application servers operating in a dynamic environment such as VMWare or AWS. The reasons for this technical choice are straightforward. Linux enjoys a lightweight and standardized remote administration mechanism through Bash and SSH. Software installation and dependency management are usually a breeze thanks to Linux distributions’ package managers.
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Last summer I wrote a piece discussing the hows and whys of using automation to manage cloud infrastructure. I took a high-level approach to the subject, and today I want to dive into how to practically apply this technique in a production environment. I’ll take a simple but flexible example case, using tools from the HashiCorp suite, including Packer and Terraform, to deploy and manage a single simple-case application stack from Jenkins.
This post assumes some basic knowledge of continuous integration, and an application stored in a git repository that has automated test and build jobs using Jenkins or something similar. To this existing basic workflow, we’ll add a simple infrastructure configuration directly into the repository.
One of the biggest crowd reactions during November’s AWS re:INVENT conference was AWS CEO Andy Jassy’s announcement of Elastic Container Service for Kubernetes (EKS). For those not already familiar with it, this seems like a good opportunity to talk about what Kubernetes is, some of its use cases, and where it fits in the cloud and DevOps landscape.
It’s that time of the year again when the cloudy masses descend on Las Vegas, Nevada for another Amazon Web Services (AWS) re:Invent Conference. With over 1,800 breakout sessions and more than 46,000 attendees from all over the globe, the sixth annual conference is the biggest yet, spanning five venues across the Vegas Strip. This year, I’m writing this post live from the conference to preview some insights from the largest gathering of cloud experts, engineers and advocates in the world, as they unfold.