Docker containers on Windows & Linux, also micro-services architecture (e.g. Azure Service Fabric).
Some workloads running on Azure Kubernetes Service (AKS) requires persisting state on disk. In general, I recommend to use external PaaS services, i.e. Azure Blob Storage, Azure SQL DB, Azure Cosmos DB, etc. . Those services take care of the stateful nature of the service, manages HA, backups, geo-replication, etc. . Persisting state on disks … More Dynamic disks in AKS
In this article I wanted to talk about a book I just finished reading. Although its title and scope is around distributed systems in general, Brendan Burns discussion is mostly using containers & Kubernetes. Brendan Burns is currently (as of this writing in November 2018) at Microsoft. He is a cofounder of the Kubernetes project. … More Designing Distributed Systems by Brendan Burns
Last time, I covered the ins and outs of Ingress on AKS. We looked at how to install nginx ingress controller and how the controller is deployed as a load balanced service. We did some URL based routing and domain name overloading. This was in the spirit of clarifying the magic behind Ingress Controllers. Another … More Understanding multiple Ingress in AKS
We looked at Kubernetes Ingress conceptually. We looked at different use cases: URL based routing and multiple domains. We also looked at how ingress was implemented from an AKS perspective, i.e. where traffic was routed in nodes. In this article, I wanted to get hands on. I figured we could start slowly with simple configuration: … More Understanding simple HTTP Ingress in AKS
In the last article, we authored a very simple chart. In this article I want to show how to use one of the powerful features of Helm: values. Values act as parameters to a chart. Having parameters is key for dev ops as we want to deploy the same chart to different environment with different … More Authoring a Helm Chart on Kubernetes / AKS – Parametrized values
As we discussed in our last article, Helm is a great technology. I recommend using it not only to manage third party packages but also your own custom-developed solutions. But how do you author a Helm Chart? I found that question hard to answer. The common answer is “look at existing ones”. I have two … More Authoring a Helm Chart on Kubernetes / AKS – Getting started
Kubernetes is a big platform to absorb. It has a rich resource & networking model. In many ways it is a miniature version of a fully fledge cloud provider, abstracting the underlying cloud provider. That is my excuse for postponing addressing Helm for such a long time. Until today. I’ll look at why you should … More 5 reasons to use Helm charts in Kubernetes
