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Kubernetes

A Quick Review of Kubernetes etcd

A Quick Review of Kubernetes etcd

(Jan. 27 2020) – So you’ve got a Kubernetes cluster, now what? etcd is the persistent key-value store that holds the state of a Kubernetes cluster. Every pod, deployment, secret, kubelet – everything about a Kubernetes cluster is stored in etcd. That means that etcd is one of the most important things to keep backups…

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The Kubernetes Learning Journey for Developers

The Kubernetes Learning Journey for Developers

(Jan. 23 2020) – As an official Kubernetes Training Partner and Certified Service Provider, we’re often asked what’s the best way for developers and DevOps teams to properly skill-up on Kubernetes.   There are a few paths future Kubernetes developers can take on their way to becoming Certified Kubernetes Application Developers (CKAD).  For Kubernetes beginners, we…

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How does Kubernetes Ingress work?

How does Kubernetes Ingress work?

(Jan. 7 2020) – In this quick video, we answer the question of how Ingresses in Kubernetes work. Ingresses manage external access to services and pods within a cluster.  We start with three pods in our cluster, with their IP addresses ending at .9, .17, and .22. These pods use an existing pod network with…

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Using Raw API calls to control Kubernetes

Using Raw API calls to control Kubernetes

(Jan. 3 2020) – This quick video explains how you configure Kubernetes pods to control Kubernetes itself with raw API calls. Most users interact with Kubernetes using kubectl. kubectl itself is a sophisticated wrapper for “curl” and communicates with a Kubernetes cluster’s API server. Using the -v flag followed by a number tells kubectl to…

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Navigating network services and policy with Helm

Helm Tigera Blog

(Dec. 19 2019) – Deploying an application on Kubernetes can require a number of related deployment artifacts or spec files: Deployment, Service, PVCs, ConfigMaps, Service Account — to name just a few. Managing all of these resources and relating them to deployed apps can be challenging, especially when it comes to tracking changes and updates…

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A big thank you to everyone at KubeCon 2019!

A big thank you to everyone at KubeCon 2019!

(Nov. 27 2019) – Last week at KubeCon 2019, we presented our deep Kubernetes and cloud native training catalog with a special dive themed booth. Our CNCF Ambassador, CKA, and CKAD certified experts were on hand in San Diego to answer questions and talk container strategy. The “deep dive” theme highlighted our extensive cloud native…

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One-Way Pod Scaling with the Kubernetes HPA

One-Way Pod Scaling with the Kubernetes HPA

(Jul. 30 2019) – Kubernetes has the ability to dynamically scale sets of pods based on resource usage. This is great for ensuring that applications always have the resources they need as loads vary. Autoscaling the number of pods in Kubernetes is most often accomplished using a Horizontal Pod Autoscaler (HPA). HPAs dynamically adjust the…

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Vitess: Sharded MySQL on Kubernetes

Vitess: Sharded MySQL on Kubernetes

(Jul. 26 2019) – Though the relational data model inherently fights horizontal scaling attempts, it is the best understood and most used data model in the world. More than one company has planted its storage flag in the MySQL/MariaDB soil only to be confounded by success and the scalability challenges that come with it. Fortunately…

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New Release: Kubernetes Foundation for EKS Training

New Release: Kubernetes Foundation for EKS Training

(Jul. 15 2019) – It brings RX-M great pleasure to announce the addition of our Kubernetes Foundation for EKS course. This hands-on course offers technology professionals experience with Kubernetes concepts and operations in both stand-alone and EKS environments. Covering a wide range of Kubernetes controllers and details pod networking and service functions, students will be given a clear…

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Webinar: Everything You Need to Know About the CKA and CKAD

Webinar: Everything You Need to Know About the CKA and CKAD

(Feb. 14 2019) – RX-M’s Managing Partner, Randy Abernethy, presents “Everything You Need to Know About the CKA and CKAD” in a webinar for the Cloud Native Computing Foundation (CNCF). Their webinar series is free for registrants and help educate new and existing community members about trends and technologies in the cloud native space. This…

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