105 Stories To Learn About K8s

Let's learn about via these 105 free stories. They are ordered by most time reading created on HackerNoon. Visit the to find the most read stories about any technology. K8s /Learn Repo 1. Why the AWS, Azure, and GCP CLIs Need to Die Why the AWS, Azure, and GCP CLIs need to die 2. Kubernetes' Impact on Development Kubernetes is the reason containerization has garnered acceptance among enterprises. Whether you like it or not, it has made your life as a developer easy. 3. Kubernetes Explained Simply: Data Extraction With JSON Path [Part 8] kubectl can pull a lot of data about our deployments and pod. Most of the time, we humans are the recipients of that information, and kubectl obliges by nicely formatting things in pretty tables. 4. Installing Configurator Using Helm Charts: Version Controls for Kubernetes ConfigMaps This is how to make use of Helm Charts with Configurator, a versioning & sync service for Kubernetes ConfigMaps that can make it easier to use ConfigMaps. 5. How to Setup Different Environments for Dockerized Angular App with Nginx Here I’m going to suggest to you a very simple deployment practice that we can follow in regards to deploy an Angular-based front-end app. 6. How to Automate Kubernetes Deployments with Postman Kubernetes is the most widely used container-based orchestration platform today. Learn how to deploy apps with continuous delivery using Postman. 7. Testkube: K8s Native Testing Tool More background information on the Cloud Native Testing Tool, Testkube. 8. Kubernetes Distributed Performance Testing using Locust Docker and Kubernetes are powerful tools that can help you in aligning your Machine Learning production cycles with the business operations requirements. 9. Kubernetes Explained Simply: #1 Kubectl Hack To say that Kubernetes uses a bit of YAML is like saying that a few people put some of their code on GitHub – accurate, but severely understated. 10. Kubernetes Explained Simply: #3 What Do I Have Permissions For? Stretching as far back as version 1.8 (in September of 2017), Kubernetes has supported a fine-grained access control mechanism called RBAC. Nothing gets done via the Kubernetes API that isn't governed by some sort permission or another, and there are a lot of them. 11. Overcoming Challenges Running the Disaggregated Analytics Stack in K8s Alluxio brings back data locality for the disaggregated analytics stack in K8s. 12. Increasing Developer Productivity with skaffold Primary focus of Developer is to write code. Build, Test and Deploy of the application are better left to be managed by tools. skaffold can help in automating some of mundane tasks that comes with using kubernetes. 13. 5 Years of K8s: DevOps Before and After Kubernetes As Kubernetes turns five, we explore the changing face of DevOps in the k8s world. 14. Goodbye, Cost-depth Trade Off: Cloud-Native Observability, Redefined It turns out that, by rethinking the fundamentals of your approach to monitoring, you can have it all 15. How to install Devtron over k3s Installing Devtron - An opensource Heroku-like platform over k3s - lightweight kubernetes. Devtron is an end-to-end software delivery workflow for Kubernetes 16. An Essential Guide to Kubernetes Observability Challenges with Pixie Debugging on K8s is hard The main reason that makes Kubernetes observability so difficult is the volatile and dynamic nature of workloads and resources. 17. Kubernetes Day-2 Operations, Part I Kubernetes is the de-facto standard for container clustering and orchestration. Its adoption is soaring in cloud-native applications. 18. Step-By-Step Tutorial To Deploy A Node.js App To Kubernetes The Cloud Foundry project cf-for-k8s, along with a Cloud Native Buildpacks implementation called Paketo Buildpacks, can provide a path for JavaScript applicatio 19. Connecting Dots: Go, Docker and k8s [Part 2] Nowadays, the successful application often consists of containers and some sort of container management system to ease scaling, reduce downtime, and more. 20. How To NOT pass the Certified Kubernetes Administrator Exam The best of bad advices about CKA 21. Kubernetes Secrets and ConfigMaps In this article we will discuss about the applications of Kubernetes ConfigMaps and Secrets. 22. An Intro to Continuous Profiling in Kubernetes via Pyroscope Let's look into continuous profiling in K8s clusters & dive deep into how you can monitor CPU usage with Pyroscope to identify performance bottlenecks 23. A Guide to Taints and Tolerations, Node Affinity and Node Selector Taint and affinity in Kubernetes are two mechanisms that allow users to specify how pods should be scheduled on nodes in a cluster. 24. I Thought I Had Observability - My Short DNS Story DNS Kubernetes improvements, How to change ndots option default value of dns in Kubernetes. DNS k8s best practices. 25. How The NSA Says You Should Secure Kubernetes Security has become a primary consideration for any technological solution. Here are the NSA's recommendations for securing Kubernetes against hackers. 26. Unleashing the Power of Kubernetes 1.26 Using the New ValidatingAdmissionPolicy Feature The Kubernetes crew just dropped the latest version, k8s 1.26 a few days ago, and it’s packed with some seriously cool new features. 27. Kubernetes Explained Simply: Data Extraction With JSON Path [Part 8] kubectl can pull a lot of data about our deployments and pod. Most of the time, we humans are the recipients of that information, and kubectl obliges by nicely formatting things in pretty tables. 28. Potential Use Cases of AI in Kubernetes See how AI is helping shape the Kubernetes industry and optimize clusters for the future. 29. Setting Up Kubernetes Role Based Access Control Kubernetes(K8s) role-based access control is a powerful tool in restricting access to resources within a Kubernetes cluster. 30. We're The DevOps Workflow You Were Promised host a monolith or microservice-based application; enterprises can layer the platform into their own private cloud cluster on kubernetes 31. Open-Source Testing Mechanism for Kubernetes Applications Without a doubt, Kubernetes is one of the top players in the container orchestration platforms game. 32. Navigate Your Way to Production Bliss with Caretta The easiest way to map our cluster: Caretta - a standalone OSS tool, leveraging eBPF technology to be lightweight and frictionless 33. What Are The Common Kubernetes Security Vulnerabilities Kubernetes has become the de-facto standard for managing containerized applications. However, this usage also led to an increased attack surface for K8s. 34. Kubernetes Explained Simply: Cleaning Up After Yourself [Part 10] If there's one thing that Kubernetes makes easy, it's creating resources – pods, deployments, volumes – before long you'll have tons of them lying around. 35. Should You Learn Kubernetes in 2022 With the increasing popularity of containerized applications, the container orchestration platform Kubernetes has become a must in the toolset of a developer. 36. Amazon Elastic Kubernetes Service (EKS) vs. Azure Kubernetes Service (AKS), A Comparison Managed Kubernetes is experiencing massive growth in adoption and many organizations are moving their self-managed Kubernetes clusters. 37. Kubernetes Explained Simply: Waiting For Kubernetes [Part 5] When you deploy stuff for a living, you find yourself waiting around, a lot. Wait for Terraform to spin up the AWS VPCs. Wait for the Kubernetes cluster node VMs to boot. Wait for the Kubernetes cluster to coalesce. Wait for the CNI pods, DNS pods, and kube-proxy bits to be happy. Wait, wait, wait. 38. Kubernetes Explained Simply: Getting At Those Logs [Part 4] UNIX/Linux system administrators the world over regularly use log files to get to the bottom of outages and malfunctions. An indispensable tool in that regard is tail(1), particularly its follow mode flag (-f). When we're in a Kubernetes world, we'd love to use something similar. 39. Understanding and Extending Kubernetes with Custom Resource Definitions API Intro 40. How to Harden K8S: Based On the Recent Updated NSA's Kubernetes Hardening Guide Recently, NSA updated the Kubernetes Hardening Guide, and thus I would like to share these great resources with you and other best practices on K8S security. 41. Checklist for Upgrading an EKS Kubernetes Cluster without Downtime A helpful checklist for upgrading Amazon EKS. 42. Write Your Own Kubernetes Sub-Command [Part 9] You write a great script for interacting with Kubernetes. It would be great if you could pretend that your script was officially part of the kubectl repertoire. 43. How to Use KEDA and Prometheus to Scale your Kubernetes Workloads Learn how to scale your kubernetes deployments with keda and prometheus 44. GitHub Pages is a Great Way to Host a Server Hosting serverless applications outside of cloud on a home server. 45. SQL Server container in Azure Kubernetes Services (AKS) So recently I got involved with an ASP.NET project which was build over 10 years ago and over the years Developers and Change Requests came and went. And over the period the Application became quite cumbersome and quite hard to understand and manage, the Application became quite large in terms of functionality, codebase and data. 46. Kubernetes vs Docker: Differences Explained Learn about Docker and Kubernetes container solutions, and discover the differences between Kubernetes and Docker to choose the one that best suits your needs. 47. My Experience with Integration Testing "I have to use the test environment for a integration test project at 2-3 pm, please don't publish during that time!" 48. Exploring an Open Source Toolkit for Debugging Kubernetes - KoolKits A new open source approach for debugging live applications - right from inside your IDE or terminal window, and without stopping the live application. 49. Beginner's Guide To Telepresence: Develop Your K8s Application Locally This post explains how Telepresence can be used to improve the developer experience for apps being developed for Kubernetes and includes a demo. 50. How to install Devtron Over MiniKube Cluster The blog includes steps to install & setup minikube and devtron - an opensource software delivery workflow for kubernetes in minikube cluster. 51. Eliminate Friction in App Delivery to Kubernetes The last two decades have seen a sea change in the way software is written and delivered. Waterfall to iterative to agile, native to hybrid to responsive interfaces, monoliths to microservices, installed to pay-as-you-go SaaS, data centers to private and hybrid clouds, and virtual machines to containers. As the market constantly evolves, enterprises are facing a ton of choices with increasing complexity. 52. Security Best Practices for Kubernetes: 2020 Edition The New Cloud-Native World of Containers 53. Reducing Kubernetes Costs Kubernetes has become the de-facto choice for most users and one aspect that any Kubernetes administrator must look into is managing Kubernetes costs. 54. Meet kubectl cost: A Tool For Determining Kubernetes Workloads Cost Kubectl cost is an open source kubectl plugin designed for those who interact regulary with Kubernetes and need to control the costs of their infrastructure. 55. Kubernetes Explained Simply: Label it to Enable it [Part 6] The building block of almost all Kubernetes deployments is the pod – one or more containers sharing a network stack. Pods are where the magic happens, where we get our logs, and where we spend most of our time troubleshooting outages and malfunctions. 56. A Guide to Kubernetes Autoscaling Tools with Linode Kubernetes Engine Learn to use key Kubernetes autoscalers with short examples 57. Managing Collectors on K8 – Why We Chose the OpenTelemetry Collector for Odigos Without proper implementation and continuous configuration of your collectors, observability tools will be limited at best at best and many times ineffectual. 58. Why Kubernetes Is The Best Technology For Running A Cloud-Native Database We’ve been talking about migrating workloads to the cloud for a long time, but a look at the application portfolios of many IT organizations demonstrates that there’s still a lot of work to be done. In many cases, challenges with persisting and moving data in clouds continue to be the key limiting factor slowing cloud adoption, despite the fact that databases in the cloud have been available for years. 59. Why Tinder, AirBnB, and Pokemon Go All Use Kubernetes Why IT executives should consider using Kubernetes in 2021 and what is its real value for business? Find real-world use cases and expert advice on adoption. 60. How To Build CI/CD Pipelines Behind Your Firewall Using Codefresh Runner Continuous Integration/Delivery (CI/CD) is one of the most obvious candidates for moving to a Kubernetes cluster, as you automatically enjoy all the benefits of Kubernetes scalability. In traditional CI solutions, companies employ a fixed set of build nodes that teams must manually monitor and upgrade. 61. A Brief Overview of Kubernetes Architecture Here, we talk about the various components within a Kubernetes architecture. Read further to know more! 62. Top Kubernetes Consulting Service Providers: 2021 Edition Kubernetes opens up the potential for better application management and deployment automation. 63. Kubernetes Scheduler: Explained in Plain English with Comics In Kubernetes pod is the smallest deployable unit of workload. So the obvious question : 64. The Essential Guide to Pod Eviction On Kubernetes By nature, pods in Kubernetes clusters are ephemeral. They can be created, killed, and moved around by the scheduler. This may occasionally cause disruption in the microservices if pods are not configured properly. 65. Running Linux Applications as Unikernels with K8S If you've read some of my prior articles you might've thought I'd never write this one huh? :) Well here goes. 66. What Is a Container And How To Use It Welcome to this tutorial series, where we will evolve from the anatomy of a container inside the Linux Kernel, and will keep building pieces and evolving till the publication of a service into an Orchestration Platform. The general idea is to detail as much as possible (without being massive) how is things working under the hood. 67. Kubernetes Explained Simply: #2 Kubectl Hack (List Running Images) Running Kubernetes in production means taking inventory. A LOT. Are any of our pods running that version of Ubuntu base image affected by the new CVE? 68. The #1 Reason Jenkins Fails Jenkins down? Pipelines broken? Hackers making off with your data? It often stems from one fatal flaw. While Jenkins has been both loved and hated for being DevOps duct tape, every user knows there are plenty of issues to deal with. Over the past three years, as part of my work at Codefresh I’ve been helping teams migrate from Jenkins and I’ve seen all of these issues over and over again. The biggest issue may surprise you because it creates a cascade effect. 69. Things to Keep in Mind to Successfully Deploy Kubernetes in Production This blog covers additional factors you should take care of to successfully deploy Kubernetes cluster in production alongwith choosing a managed cloud. Read on. 70. Connecting Dots: Go, Docker and k8s [Part 1] In this post my plan is to create open tcp port scanning tool, use GO and worker pool to make it very fast. Expose it via REST resource, containerise and deploy 71. Solid Tips on How to Manage and Monitor Chaos via Litmus Custom Resources Litmus is a Cross-Cloud Chaos Orchestration framework for practising chaos engineering in cloud-native environments. Learn how chaos is orchestrated with Litmus 72. How Namespace and Terraform Can Manage Kubernetes Environments In the last several years, Kubernetes has become the “go to” standard for managing and orchestrating containerized workloads. Thanks to it’s vendor agnostic nature, you can easily run Kubernetes almost anywhere, and in fact, all the major cloud vendors offer a managed Kubernetes service (AWS EKS, Google GKE, and Azure AKS). 73. How to Deploy ML Workflows on LKE with Kubeflow Introduction 74. Your Serverless Guide is Ready Learn everything you need to know about Serverless, including case studies, essential concepts, guidelines, and best practices. 75. How to Build Your Own Observability Platform on Kubernettes End-to-end full observability using Odigos and other back-end observability tools. 76. How To Run Docker Linux Containers Natively on Windows With Docker Desktop running on WSL 2, users can leverage Linux workspaces and avoid having to maintain both Linux and Windows build scripts. How is it different? 77. How to Pass the Certified Kubernetes Administrator Exam in 7 Days A couple of weeks ago I passed the Certified Kubernetes Administrator (CKA) exam with 7 days of prep. Here’s how I did it. 78. The 5 Best Kubernetes Alternatives Kubernetes is not the only player in the market, there are different Kubernetes competitors and Kubernetes alternatives. 79. Accessing Kubernetes Using Expose API and User Interface Using Sidecar Pattern Kubernetes is an open-source container-orchestration system for automating application deployment, scaling, and management. 80. Never Worry About Cloud-Native Tech Security Again If you have embraced the concept of cloud-native computing and principles, you are ahead; you are on the right path in today’s advanced and competitive IT environment. But we need to understand one thing that, moving your development environment and processes to a cloud-native environment can be daunting and challenging. Anybody can merely advise you to move from a monolithic application to a microservices architecture, but from where and how are the questions that need critical analysis. 81. Murre - the lightweight K8s metrics monitoring tool 82. Using Codeship to Deploy a Dotnet app on Oracle Kubernetes So, I was looking at an alternative to Azure DevOps and Jenkins to build a CI CD pipeline for a new project. A friend had asked me for a recommendation. His wanted to host microservices in Oracle Kubernetes Service. 83. Viewing K8S Cluster Security from the Perspective of Attackers (Part 1) Based on previous penetration testing experience, we have sorted out the possible security issues under the K8S cluster architecture. 84. Kubernetes Tutorial: Merge all the Kubeconfigs! [Part 7] Once you start managing more than one Kubernetes cluster, you'll start to demand more from your $KUBECONFIG. 85. Platforms on k8s with Golang - Watch any CRD Let’s say you want to do more with Kubernetes than run off-the-shelf apps. Perhaps you want to stitch apps together into a bespoke platform. Imagine that when your user clicks a button you want to provision a new database or open up a new public-facing endpoint. 86. How To Deploy Firecracker MicroVMs using Weave FireKube Introduction 87. A Quick Guide to Writing YAML for Kubernettes YAML is a human-friendly, data serialization standard. It also has various applications in Kubernetes. 88. How To Use Brigade Tool For Event-Driven Scripting What is Brigade? 89. Kubernetes Resource Quotas Those who work with kubernetes often encounter resource quotas, such as cpu, memory, but few people know that these are not all quotas and what their mechanism is built on. 90. KubeMQ Secrets To Build A Great Kubernetes-based Solution In A Hybrid Environment A messaging platform that was purposefully built utilizing Kubernetes is a crucial component to successful deployments in hybrid and edge environments. 91. How To Run Cloud-Native Performance Benchmarks with Kubestone Intro 92. Tips and Tricks to Pass Certified Kubernetes Application (CKA) Exam Certified Kubernetes Administrator: What you need to know to pass the CKA exam? Useful tips to pass the Certified Kubernetes Administrator exam. 93. 6 Tips on How to Choose a Proper VM and Save on Your Cloud Costs Did you know that 90% of applications have 5x more resources than they actually need? 94. How to Set Up Jenkins on Kubernetes This guide will walk you through the process of setting up Jenkins on Kubernetes. Jenkins is a widely-used open source CI server that provides hundreds of plugins to support building, deploying and automating your projects. 95. Doing First Steps with the Kubernetes Operator This article demonstrates how you can use the Operator Lifecycle Manager to deploy a Kubernetes Operator to your cluster. Then, you will use the Operator to spin up an Elastic Cloud on Kubernetes (ECK) cluster. 96. How To Create a CD pipeline with Kubernetes, Ansible, and Jenkins What does CI/CD try to solve? 97. The HackerNoon Podcast: Managing Databases on Kubernetes with Anil Kumar Amy Tom talks to Anil Kumar, the Product Manager at Couchbase, about becoming a Product Manager, writing his book, and creating a multi-cloud strategy. 98. Using Spinnaker with Kubernetes for CI/CD Kubernetes is now the de-facto standard for container orchestration. With more and more organizations adopting Kubernetes, it is essential that we get our fundamental ops-infra in place before any migration. This post will focus on pushing out new releases of the application to our Kubernetes cluster i.e. Continuous Delivery. 99. Anthos on Bare Metal: How to Manage a Private Cluster From the Cloud The millions of devices that currently make up the Internet of Things (IoT) reside not in the cloud but on-premises: from retail stores to factory floors. 100. How To Use Prometheus Adapter to Autoscale Custom Metrics Deployments Introduction 101. The Essential Guide to Kubernetes Virtual Clusters Virtual clusters are Kubernetes clusters that run on top of other Kubernetes clusters and don't need any extra resources 102. How To Make The Kubernetes Operator Rock: Basic Principles This blog post demonstrates how you can use the Operator Lifecycle Manager to deploy a Kubernetes Operator to your cluster. Then, you will use the Operator to spin up an Elastic Cloud on Kubernetes (ECK) cluster. 103. The Apprentice's Guide to Kubernetes Let's dig into Kubernetes, a powerful orchestrator that will ease deployment and automatically manage your applications on a set of machines. 104. Kubernetes Monitoring with Prometheus and Thanos Introduction 105. How to Configure And Monitor Apache Spark on Kubernetes Earlier this year at Spark + AI Summit, we had the pleasure of presenting our session on the best practices and pitfalls of running Apache Spark on Kubernetes (K8s). Thank you for checking out the 105 most read stories about K8s on HackerNoon. to find the most read stories about any technology. Visit the /Learn Repo