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Cloud Native

Using Raw API calls to control Kubernetes

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 show the exact call…

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Navigating network services and policy with Helm

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 to the deployed application…

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One-Way Pod Scaling with the Kubernetes HPA

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 replica count of a…

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New Release: Prometheus for Users Training

RX-M is excited to announce our brand new course: Prometheus for Users. This hands-on course allows users to move from just using the basic principals of the software to advanced timeseries query development and dashboarding. The course is organized into modules, these include hands-on labs that offer practical experience working with Prometheus. The course can be…

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Vitess: Sharded MySQL on Kubernetes

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 for users like YouTube…

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Why a La Carte Education is Critical for Open Source Skill-Building

Randy Abernethy (Managing Partner of RX-M, LLC) takes a seat with Clyde Seepersad (General Manager of Training and Certification of The Linux Foundation) to discuss his work and role in the Linux Foundation. Their discussion covers topics such as the establishment of certifications, the success of CKA & CKAD exams, failed and retired programs, and…

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New Release: Fluentd Foundation Training

RX-M would like to announce the recent release of the Fluentd Foundation course. This intensive two-day hands-on course will help working technology professionals master the essentials. The course covers key concepts necessary to deploy, use, and tailor a production solution. Attendees will learn how to collect data from multiple sources using data input and parsing plugins as…

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New Release: C++ Foundation Training

New Release: C++ Foundation Training We are excited to announce the addition of our course: C++ Foundation. This hands-on course takes developers from the basic principals to practical program construction in C++. Attendees will use C++11 while also introducing features from C++14 and C++17 with clear attribution.  The modules of this course provide coverage of the most…

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

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 Kubernetes Certification webinar takes…

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CRCP – The Curiously Reoccuring Communications Pattern

Curiously Reoccurring Things This is an article about the Curiously Reoccurring Communications Pattern, CRCP[1] for short. The CRCP name was inspired by the C++ CRTP[2], the “Curiously Reoccurring Template Pattern”, a C++ coding pattern identified in 1995 by Jim Coplien. While the CRTP and CRCP operate in different spheres they are both curious and reoccurring.…

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