In a best-practice Kubernetes cluster every request to the Kubernetes APIServer is authenticated and authorized. Authorization is usually implemented by the RBAC authorization module. But there are alternatives and this blog post explains how to implement advanced authorization policies via Open Policy Agent (OPA) by leveraging the Webhook authorization module.
kubeadm is a tool that enables Kubernetes administrators to quickly and easily bootstrap minimum viable clusters that are fully compliant with Certified Kubernetes guidelines. It’s been under active development by SIG Cluster Lifecycle since 2016 and we’re excited to announce that it has now graduated from beta to stable and generally available (GA)!
We’re pleased to announce the delivery of Kubernetes 1.13, our fourth and final release of 2018!
Kubernetes 1.13 has been one of the shortest releases to date at 10 weeks. This release continues to focus on stability and extensibility of Kubernetes with three major features graduating to general availability this cycle in the areas of Storage and Cluster Lifecycle. Notable features graduating in this release include: simplified cluster management with kubeadm, Container Storage Interface (CSI), and CoreDNS as the default DNS.
Early on Monday December 3rd, a boulder splashed into the placidly silent Kubernetes security channels. A potentially high severity authentication bypass was disclosed with scant explanation the same day that K8s version 1.13 went golden master. For Kubernetes administrators with PTSD from 2014’s HeartBleed, the CVE blast and its 37-line fix triggered palpitations in anticipation of sleepless patchfests to come.
This article talks about how Kubernetes has emerged from container orchestration platform to manage complex workloads in AI and Machine Learning Stacks, Managing containers in NFV architecture and handling hardware GPU resources.
Kubernetes is a great orchestator for containers. But it does not manage network for Pod-to-Pod communication. This is the mission of Container Network Interfaces (CNI) plugins which are a standardized way to achieve network abstraction for container clustering tools (Kubernetes, Mesos, OpenShift, etc.)
Kubernetes works on the principle of assigning IP addresses to pods, called as “IP-per-pod” model. The IPAM (IP address management) task is left to third party solutions. Some of these solutions include Docker networking, Flannel, IPvlan, contive, OpenVswitch, GCE and others.
The Kubernetes architecture consists of master node, replication controller in addition (or conjunction) to nodes used to host the pods. Before we go ahead, here is a review of Kubernetes terms.
So, finally decided to secure your Helm installation? That`s great! Sounds easy enough, right? And as an extra, all sources seem to be telling the exact same story: “All you have to do is follow these steps, and you are good to go”. Right? Wrong. Well, not really wrong, it is a fairly simple procedure, but brace yourself for more typing. Much more. A bit more. There you are. But have no fear, the solution is here (in this post, if that was unclear).