Rancher News

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  Stupid Simple WebAssembly
  • sorangutan  

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  In this blog post, we’ll introduce you to WebAssembly. We’ll start with a history lesson on the Assembly language, which was created to make programming easier and boost productivity. Then we’ll move on to WebAssemby, a descendent of Assembly, and cover what it is, the problems it solves and how it does that. Assembly Decades ago, if you wanted to program a computer, you had to write binary code. We called it machine code because it is the native language of any computer (maybe this will change with the rise of quantum computing, but for now, every computer works on binary code).
  
  https://rancher.com/blog/2021/stupid-simple-webassembly/
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  Hyperconverged Infrastructure and Harvester
  • sorangutan  

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  Virtual machines (VMs) have transformed infrastructure deployment and management. VMs are so ubiquitous that I can’t think of a single instance where I deployed production code to a bare metal server in my many years as a professional software engineer. VMs provide secure, isolated environments hosting your choice of operating system while sharing the resources of the underlying server. This allows resources to be allocated more efficiently, reducing the cost of over-provisioned hardware.
  
  https://rancher.com/blog/2021/hyperconverged-infrastructure-and-harvester/
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  Octopod Episode 1: What is an Open Source Community?
  • sorangutan  

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  In Episode 1 of the OCTOpod, Alan Clark talks with Thierry Carrez about open source communities: what they are, how they work and how you can get involved. Trying to define what an open source community is might sound like a simple task, but it is a layered, nuanced collective with many moving parts. Thierry has been in the open source community for years and is currently the VP of engineering at the Open Infrastructure Foundation.
  
  https://rancher.com/blog/2021/octopod-episode-1-what-is-an-open-source-community/
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  Accelerating Machine Learning with MLOps and FuseML: Part One
  • sorangutan  

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  Building successful machine learning (ML) production systems requires a specialized re-interpretation of the traditional DevOps culture and methodologies. MLOps, short for machine learning operations, is a relatively new engineering discipline and a set of practices meant to improve the collaboration and communication between the various roles and teams that together manage the end-to-end lifecycle of machine learning projects. Helping enterprises adapt and succeed with open source is one of SUSE’s key strengths.
  
  https://rancher.com/blog/2021/accelerating-machine-learning-with-mlops-and-fuseml-part-one/
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  Rancher Desktop v0.3.0 Release
  • sorangutan  

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  We are happy to share the v0.3.0 release of Rancher Desktop. This release brings more stability, some new features, and a fresh look to the UI. This screenshot shows the preferences screen while in dark mode on Mac. In the lower left corner the status when performing an action is now displayed. This status will tell you when Rancher Desktop needs to download something, such as a version of Kubernetes you have now used before, or when another step is happening.
  
  https://rancher.com/blog/2021/rancher-desktop-v030-release/
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  Rancher Desktop – An Open Source App for Desktop Kubernetes and Container Management
  • sorangutan  

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  For those of us who need to get applications running in Kubernetes, having Kubernetes on the desktop is incredibly useful. When we want to focus on our applications, it’s especially useful when Kubernetes is easy to use. This is where Rancher Desktop comes in. Rancher Desktop provides easy-to-use Kubernetes and container management (something we’ll look at in a moment) for Mac and Windows. Having Kubernetes isn’t enough. Being able to choose your version of Kubernetes and even being able to test upgrading Kubernetes versions is important.
  
  https://rancher.com/blog/2021/rancher-desktop-an-open-source-app-for-desktop-kubernetes-and-container-management/
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  Announcing Harvester Beta Availability
  • sorangutan  

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  It has been five months since we announced project Harvester, open source hyperconverged infrastructure (HCI) software built using Kubernetes. Since then, we’ve received a lot of feedback from the early adopters. This feedback has encouraged us and helped in shaping Harvester’s roadmap. Today, I am excited to announce the Harvester v0.2.0 release, along with the Beta availability of the project! Let’s take a look at what’s new in Harvester v0.
  
  https://rancher.com/blog/2021/announcing-harvester-beta-availability/
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  Introducing Kubewarden, an Open Source Policy Engine
  • sorangutan  

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  Security has always been a wide and complex topic. A recent survey from StackRox about the state of containers and Kubernetes security provides some interesting data on these topics. In this blog post, I’ll dive into some of the findings in that survey and introduce you to Kubewarden, an open source policy engine. Security Measures and Skills are Lacking A staggering 66 percent of the survey participants do not feel confident enough in the security measures they have in place.
  
  https://rancher.com/blog/2021/kubewarden/
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  Introduction to K3s
  • sorangutan  

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  Whether you’re new to the cloud native space or an accomplished practitioner, you’re probably aware that there are many Kubernetes distributions to choose from. Maybe you’ve heard about the challenges of getting up and running with Kubernetes. Guess what? It doesn’t have to be hard. This blog provides an introduction to K3s, a lightweight CNCF-certified Kubernetes distribution. We’ll look at what makes K3s different from other Kubernetes distributions. Built for resource-constrained environments like network edge devices, K3s is lightweight and simple yet ready for production from day one.
  
  https://rancher.com/blog/2021/introduction-to-k3s/
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  Tools To Develop Apps On Kubernetes
  • sorangutan  

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  Containers and Kubernetes have changed the way we operate applications. This has been a boon for Site Reliability Engineers (SREs) and DevOps professionals who handle infrastructure management. Yet, it has come at a cost to many who develop and operate applications. Their experience has become more complicated and cumbersome. If we look at our cloud or cluster computing platforms as a stack, Kubernetes and many supporting tools have focused on low-level concerns.
  
  https://rancher.com/blog/2021/tools-to-develop-apps-on-kubernetes/
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  What Comes After Kubernetes?
  • sorangutan  

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  What Comes After Kubernetes? You probably can’t believe I’m asking that question. It’s like showing up to a party and immediately asking about the afterparty. Is it really time to look for the exit? No…but yes. We used to deploy apps on systems in data centers. Then we moved the systems to the cloud. Then we moved the apps to containers. Then we wrapped it all in Kubernetes for orchestration, and here we are.
  
  https://rancher.com/blog/2020/what-comes-after-kubernetes/
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  What Comes After Kubernetes?
  • sorangutan  

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  What Comes After Kubernetes? You probably can’t believe I’m asking that question. It’s like showing up to a party and immediately asking about the afterparty. Is it really time to look for the exit? No…but yes. We used to deploy apps on systems in data centers. Then we moved the systems to the cloud. Then we moved the apps to containers. Then we wrapped it all in Kubernetes for orchestration, and here we are.
  
  https://rancher.com/blog/2021/what-comes-after-kubernetes/
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  Introduction to k3d: Run K3s in Docker
  • sorangutan  

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  In this blog post, we’re going to talk about k3d, a tool that allows you to run throwaway Kubernetes clusters anywhere you have Docker installed. I’ve anticipated your questions…so let’s go! What is k3d? k3d is a small program made for running a K3s cluster in Docker. K3s is a lightweight, CNCF-certified Kubernetes distribution and Sandbox project. Designed for low-resource environments, K3s is distributed as a single binary that uses under 512MB of RAM.
  
  https://rancher.com/blog/2020/introduction-k3d-run-k3s-docker-src/
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  Introduction to k3d: Run K3s in Docker
  • sorangutan  

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  In this blog post, we’re going to talk about k3d, a tool that allows you to run throwaway Kubernetes clusters anywhere you have Docker installed. I’ve anticipated your questions…so let’s go! What is k3d? k3d is a small program made for running a K3s cluster in Docker. K3s is a lightweight, CNCF-certified Kubernetes distribution and Sandbox project. Designed for low-resource environments, K3s is distributed as a single binary that uses under 512MB of RAM.
  
  https://rancher.com/blog/2021/introduction-k3d-run-k3s-docker-src/
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  Do Edge Applications Need Stateful Storage?
  • sorangutan  

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  Kubernetes applications are increasingly making their way to the edge and embedded computing. Storage will quickly follow as the applications that rely on this edge infrastructure become more advanced and naturally carry more state. According to a study by McKinsey and Company, a “connected car” processes up to 25GB of data per hour. Granted not all the data needs to persist, but as engineers add more analytics and processing systems to our cars, the amount of data that we want to retain will only increase.
  
  https://rancher.com/blog/2020/storage-edge-applications-longhorn/
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  Do Edge Applications Need Stateful Storage?
  • sorangutan  

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  Kubernetes applications are increasingly making their way to the edge and embedded computing. Storage will quickly follow as the applications that rely on this edge infrastructure become more advanced and naturally carry more state. According to a study by McKinsey and Company, a “connected car” processes up to 25GB of data per hour. Granted not all the data needs to persist, but as engineers add more analytics and processing systems to our cars, the amount of data that we want to retain will only increase.
  
  https://rancher.com/blog/2021/storage-edge-applications-longhorn/
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  Compute Confidently at the Edge with Rancher and Longhorn 1.1
  • sorangutan  

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  Today’s announcement of Longhorn 1.1, a Cloud Native Computing Foundation (CNCF) Sandbox project, is exciting news for users of Rancher, SUSE’s Kubernetes management platform, and the Kubernetes community. Longhorn is an enterprise-grade, cloud native container storage solution that went GA in June 2020. Since then, adoption has increased by 235 percent. Now Longhorn is the first cloud native storage solution designed and built for the edge, with ARM64 support, new self-healing capabilities and increased performance visibility.
  
  https://rancher.com/blog/2021/compute-at-edge-rancher-longhorn/
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  Set up K3s in High Availability using k3d
  • sorangutan  

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  Have you ever wanted to try K3s high availability cluster “mode,” and you either did not have the minimum three “spare nodes” or the time required to set up the same amount of VMs? Then you are in for a good treat: meet k3d! If you’re not familiar with k3d, its name gives you a hint to what it’s all about: K3s in Docker. k3d is a lightweight wrapper to run K3s (a lightweight, single <40MB binary, certified Kubernetes distribution developed by Rancher Labs and now a CNCF sandbox project) in Docker.
  
  https://rancher.com/blog/2020/set-up-k3s-high-availability-using-k3d/
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  Using Hybrid and Multi-Cloud Service Mesh Based Applications for Distributed Deployments
  • sorangutan  

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  Service Mesh is an emerging architecture pattern gaining traction today. Along with Kubernetes, Service Mesh can form a powerful platform which addresses the technical requirements that arise in a highly distributed environment typically found on a microservices cluster and/or service infrastructure. A Service Mesh is a dedicated infrastructure layer for facilitating service-to-service communications between microservices. Service Mesh addresses the communication requirements typical in a microservices-based application, including encrypted tunnels, health checks, circuit breakers, load balancing and traffic permission.
  
  https://rancher.com/blog/2020/hybrid-multi-cloud-service-mesh-based-applications-distributed-deployments/
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  Mitigating Kubernetes Security Vulnerability when using ExternalIP Services (CVE-2020-8554)
  • sorangutan  

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  Earlier this month the Kubernetes project discovered a security issue affecting multitenant clusters: If a potential attacker can already create or edit services and pods, then they may be able to intercept traffic from other pods (or nodes) in the cluster. An attacker that is able to create a ClusterIP service and set the spec.externalIPs field can intercept traffic to that IP. In the following image, a malicious party would be able to intercept traffic intended for Google’s public DNS server address ‘8.
  
  https://rancher.com/blog/2020/mitigating-kubernetes-security-vulnerability-externalip-services-cve20208554/