Kubernetes Cluster with Raspberry Pis

UPDATED as of May 22, 2019   This is the first post in our Pi-IoT post series. Technology Raspberry Pi 3 HypriotOS Kubernetes Flannel Credit where Credit is Due I owe a big thanks to the fine folks over at Hypriot for all their work in this area. Their initial post on this subject was […]

PI-IoT Overview

Overview (UPDATED -5/22/2019) In the coming months the SUM Global team will be creating a series of posts that will build out a Kubernetes cluster  on 6 Raspberry Pi 3s (RPi). It will utilize persistent volumes and have html based load balancing. We will utilize GlusterFS for the volume management. We are building our own […]

Project Estimation: A better way

In my many years of development both as a manager and consultant, the one piece of the agile process and especially scrum points is they never seem to give you an estimate that those controlling the budget or making financial choices can use. I am an avid agile proponent and an early adopter (signed the Agile […]

DevNexus 2018 Thank you!

Thank You! To all the good folks that attended DevNexus 2018, the speakers, all the volunteers and AJUG that put this one every year. Thank you. We, as a company, have been attending for years, and always come away energized and excited about what we do. This year Charlie and I decided to give a […]

The Kubernetes Strikes Back

Feeling dissatisfied with the last post, I really wanted to have a working k8s raspberry pi cluster. At the point, I turned my attention to another networking plugin called weave. If you are following along in the series, we are going back to the beginning and rebuilding the cluster. I had tried weave in the […]

Raspberry Pi: Kubernetes vs Swarm

Overview We continue building out our IoT Pi project with a small backtrack. In a previous post, we created a cluster of Raspberry Pis using Kubernetes. Life with k8s was great until instability set in. It appeared that most of the issues were with the network driver Flannel. we experienced Lost/Unrecoverable nodes Kernel panics Network […]

RPi GlusterFS Install

GlusterFS and RPi Overview We continue building out our IoT Pi project by adding volume storage that our Kubernetes cluster can use. This is a brief summary of the steps to create a glusterfs endpoint, Mounting the GlusterFS system on our Raspberry PIs and making them available to our Swarm. For this exercise we are […]

Deploying the Kubernetes Dashboard

Welcome to the third post in our Pi-IoT series. If you are just finding the series please jump back to the overview and check out how we got here. Technology Raspberry Pi 3 HypriotOS Kubernetes Dashboard Now it’s time to deploy the kubernetes dashboard. Deploy the Kubernetes Dashboard

Viewing the Dashboard We are going […]

Testing our Kubernetes Cluster

Welcome to the second post in our Pi-IoT series. Technology Raspberry Pi 3 HypriotOS Kubernetes In our previous post, we created a kubernetes cluster using raspberry pi’s. Lets test that cluster now Deploying a Test Service Log into the master node and deploy

kubectl starts a set of pods called hypriot from the hypriot/rpi-busybox-httpd […]

Angular, Keycloak and Wildfly: Tying It All Together

[thumbnail target=”_self” src=”https://mlwsfn3yh4km.i.optimole.com/w:auto/h:auto/q:55/http://sumglobal.com/wp-content/uploads/2016/05/AngularKeycloakWildfly.png”] In previous posts, we have: Used vagrant to create a development environment Secured REST services with Keycloak You can find the code on our GitHub site: https://github.com/sumglobal Now let’s use Keycloak and AngularJS to create a secure web application Once the REST services are secured, we will use Keycloak’s javascript adapter to secure the web application. […]