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In a previous post, we hopefully covered the why and where the CSI has come from and where it is going and the benefits that come with having an industry-standard interface by enabling storage vendors to develop a plugin once and have it work across a number of container orchestration systems. The reason for this post is to highlight how to install the driver and enable volume snapshots, the driver itself is still in the beta phase, and the volume snapshot is in the alpha phase, alpha phase software is not supported within Amazon EKS clusters. The driver is well tested and supported in AmazonRead More →

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Some may say that Kubernetes is built for only stateless workloads but one thing we have seen over the last 18-24 months is an increase in those stateful workloads, think your databases, messaging queues and batch processing functions all requiring some state to be consistent and work. Some people will also believe that these states should land outside the cluster but can be consumed by the stateless workloads ran within the Kubernetes cluster. The people have spoken In this post, we are going to briefly talk about the storage options available in Kubernetes and then spend some time on the Container Storage Initiative / InterfaceRead More →

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My big project over the last month has not only been getting up to speed around Kubernetes but has had a parallel effort around Kubernetes storage and an open-source project that has been developed and today is released. In this post we are going to touch on how to get going with Kubestr, the first thing to mention is that this is a handy set of tools to help you identify, validate, and evaluate your Kubernetes storage. The Challenge The challenge we have with Kubernetes storage is that it’s not all that easy and it’s very manual to achieve some of the tasks that KubestrRead More →

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Over the last week or so I have been diving into the three main public clouds, I covered Microsoft Azure Kubernetes Service, Google Kubernetes Engine and Amazon Elastic Kubernetes Service. We are heading back to Amazon EKS for this post and we are focusing on a lightweight Linux container focused open-source operating system that will be our EKS node operating system in our cluster. What is Bottlerocket? “Bottlerocket is a Linux-based open-source operating system that is purpose-built by Amazon Web Services for running containers on virtual machines or bare metal hosts.” Bottlerocket was released around a year ago in March 2020, an operating system designedRead More →

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In this post we will cover getting started with Google Kubernetes Engine (GKE) much the same as the previous posts covering Amazon EKS and Microsoft AKS, we will walk through getting a Kubernetes cluster up and running. Now we could walk through the Google Cloud Portal which is pretty straight forward and if you would like to see that as a walkthrough let me know and I will cover this but I think the most appropriate way is gearing up for Infrastructure as Code. As with all the public cloud managed Kubernetes posts I have covered they all have great documentation and walkthroughs on gettingRead More →

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This post is going to cover off using Azure PowerShell to get a Microsoft Azure Kubernetes Service (AKS) cluster up and running in your Azure Subscription. In the previous post, we went through the same AKS cluster creation using the Azure CLI Which one you choose will depend on your background and usage, if you are familiar with PowerShell then you might choose this option as you might be more familiar with the object output. There are lots of posts already out there around the Azure CLI vs Azure PowerShell here is one, but I am not going to get into that here. Install AzureRead More →

AKS Kubernetes

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In this post we will cover getting started with Microsoft Azure Kubernetes Service (AKS) much the same as the previous post covering Amazon EKS, we will walk through getting a Kubernetes cluster up and running. Now we could walk through the Azure Portal and this is pretty straight forward and if you would like to see that as a walkthrough let me know and I will cover this but I think the most appropriate way is gearing up for Infrastructure as Code. I took the scientific approach over the weekend and asked if I should use Azure CLI or Azure PowerShell, the twitter-verse responded withRead More →

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Over the last few weeks since completing the 10 part series covering my home lab Kubernetes playground I have started to look more into the Amazon Elastic Kubernetes Service (Amazon EKS) is a managed service that you can use to run Kubernetes on AWS without needing to install, operate, and maintain your own Kubernetes control plane or nodes. I will say here that the continuation of “this is not that hard” is still the case and if anything and as probably expected when you start looking into managed services. Don’t get me wrong I am sure if you are running multiple clusters and hundreds ofRead More →

kubernetes learning

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The last post was to focus a little more on applications but not so much between the stateful and stateless types of applications but in the shape of application deployment. This was deploying KubeApps and using this as an application dashboard for Kubernetes. This post is going to focus on a deployment that is firstly “mission critical” and that contains a front end and a back end. Recently Dean and I covered this in a demo session we did at the London VMUG. I would also like to add here that the example nodejs application and mongodb back end was first created here. Dean alsoRead More →

kubernetes learning

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The last post covered how to implement a load balancer such as MetalLB if you are running your learning environment outside the public cloud, the public cloud generally brings this capability natively. This post is going to focus a little more on applications but not so much between the stateful and stateless types of applications but in the shape of application deployment. We also covered in a previous post about Helm and Helm Charts and how they can help when you want to build out an application or deployment. This post will focus on KubeApps. Your Application Dashboard for Kubernetes. Getting KubeApps installed It isRead More →