category
Kubernetes
- #114 8 min
What is Koreo?
The platform engineering toolkit for Kubernetes Last month we open sourced Koreo, our “platform engineering toolkit for Kubernetes.” Since then, we’ve seen a lot of interest from folks in the platform engineering and DevOps space. We’ve also gotten a lot of questions from people trying to better understand how Koreo fits into an already crowded landscape of Kubernetes tools. Koreo is a fairly complex tool, so it can be difficult to quickly grasp just what exactly it is_,_ what problems it’s designed to solve, and how it compares to other, similar tools. In this post, I want to dive into these topics and also discuss the original motivation behind Koreo.
- #113 5 min
Controller-Driven Infrastructure as Code
Harnessing the Kubernetes Resource Model for modern infrastructure management Infrastructure as Code (IaC) revolutionized how we manage infrastructure, enabling developers to define resources declaratively and automate their deployment. However, tools like Terraform and CloudFormation, despite their declarative configuration, rely on an operation-centric model, where resources are created or updated through one-shot commands. The evolution of IaC: From operations to controllers In contrast, Kubernetes introduced a new paradigm with its controller pattern and the Kubernetes Resource Model (KRM). This resource-centric approach to APIs redefines infrastructure management by focusing on desired state rather than discrete operations. Kubernetes controllers continuously monitor resources, ensuring they conform to their declarative configurations by performing actions to move the actual state closer to the desired state, much like a human operator would. This is known as a control loop.
- #103 10 min
Cloud without Kubernetes
I think it’s safe to say Kubernetes has “won” the cloud mindshare game. If you look at the CNCF Cloud Native landscape (and manage to not go cross eyed), it seems like most of the projects are somehow related to Kubernetes. KubeCon is one of the fastest-growing industry events. Companies we talk to at Real Kinetic who are either preparing for or currently executing migrations to the cloud are centering their strategies around Kubernetes. Those already in the cloud are investing heavily in platform-izing their Kubernetes environment. Kubernetes competitors like Nomad, Pivotal Cloud Foundry, OpenShift, and Rancher have sort of just faded to the background (or simply pivoted to Kubernetes). In many ways, “cloud native” seems to be equated with “Kubernetes”.
- #95 6 min
Using Google-Managed Certificates and Identity-Aware Proxy With GKE
Ingress on Google Kubernetes Engine (GKE) uses a Google Cloud Load Balancer (GCLB). GCLB provides a single anycast IP that fronts all of your backend compute instances along with a lot of other rich features. In order to create a GCLB that uses HTTPS, an SSL certificate needs to be associated with the ingress resource. This certificate can either be self-managed or Google-managed. The benefit of using a Google-managed certificate is that they are provisioned, renewed, and managed for your domain names by Google. These managed certificates can also be configured directly with GKE, meaning we can configure our certificates the same way we declaratively configure our other Kubernetes resources such as deployments, services, and ingresses.
- #75 5 min
There and Back Again: Why PaaS Is Passé (And Why It’s Not)
In 10 years nobody will be talking about Kubernetes. Not because people stopped using it or because it fell out of favor, but because it became utility. Containers, Kubernetes, service meshes—they’ll all be there, the same way VMs, hypervisors, and switches will be. Compute is a commodity, and I don’t care how my workload runs so long as it meets my business’s SLOs and other requirements. Within AWS alone, there are now innumerable ways to run a compute workload.