Kubernetes
For teams that are looking to build out a Kubernetes cluster and migrate their applications, my first reaction is always the same, no matter the skill-level and capability of the team. Here's something of how the conversation goes: First, let's identify your Kubernetes administrators and let
Kubernetes
To put it simply, a StatefulSet should be used to govern one or more related pods that need to track state in some way. A StatefulSet would be what you use instead of a Deployment. StatefulSets are a particularly cool implementation detail among Kubernetes workload APIs. It works very similarly
Career
When getting started with Kubernetes, I was extremely lost. I tried jumping straight into the Kubernetes documentation, but I wasn't able to make sense of it all and where to begin. It's okay if that's where you are – that's totally normal. So,
ci/cd
So you're ready to automate your application deployment to Kubernetes. You've made the right choice! Let's consider what a pipeline might look like if you are using Kubernetes manifests directly without the use of a tool such as Helm. In other words, you just
GitOps
Simply put: GitOps is a way of managing infrastructure, configuration, permissions, etc... in an explicit and repeatable way by simply pushing changes to git and allowing an associated pipeline to make the changes come to life. Let's dig a little deeper. What GitOps Isn't GitOps is
github
Github Actions are here, and they are really great to work with. Let's take a look at how you would use a GitHub action to build and push a Docker image to your GitHub container registry. First, here's the YAML file we will consider. It lives
ghost
Let's get right down to business: Can Ghost CMS run in Kubernetes? Yes! This site is proof. It's running on my personal cluster in Digital Ocean (previously Azure Kubernetes Service, but Digital Ocean costs about half the price). How to do it It's relatively
Resiliency
In the wake of the Nashville bombing tragedy on Christmas morning, many folks across Tennessee and Kentucky were left without internet and phone connectivity. 911 lines were down. Flights had to be cancelled. Even as I'm writing this, more than 36 hours later, there is still a significant
Kubernetes
What's the difference? It's as simple as this: Filesystem The filesystem is isolated to a container. If you write something to it, it will only be accessible in that one container, and its lifespan won't extend beyond that of the container. Volume A volume
scrum
There are so many places to go wrong with Scrum. Most organizations adopt a whole slew of bad practices. Let's understand the basics of why...
macos
Did you get this error when running a git command? xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun No problem! Just run this command to fix it (even if you've installed it before): xcode-select --install If that doesn&
terraform
If you have a need to quickly spin up AKS clusters on a regular basis, this GitHub repo can serve as a nice scaffold: https://github.com/justin-vanwinkle/terraform-k8s It has everything you'll need to get going: * A Terraform config that defines a Kubernetes cluster with autoscaling nodes
culture
The three tenants of DevOps are people, processes, and tools. As technologists, it is extremely easy for us to focus on tools and processes when implementing DevOps and assume that those translate to a good culture through making people's jobs easier, and thus making the people happier. This
process
Too many times, I have worked with clients where the client demands that we create a new system starting with a development environment. From there, they often want to create additional environments in front of production. QA, UAT and Staging perhaps. Then comes production. Unfortunately, this approach is a fallacy.
Kubernetes
Not many things scare me in this world. One of the things that does is setting up and managing an on-premises Kubernetes cluster. In all of my time working with clients and helping them set up Kubernetes clusters, Azure Kubernetes Service (AKS) has been, hands down, the most efficient, straightforward,
leadership
As a leader, I often find that the most effective thing I can do is slow down and block out the noise of all that is happening. The world provides endless pressures – I must learn to block out some things so that I can give others the attention they deserve.