How To: Stop and start a production OpenShift Cluster

This post was originally published on the ETI blog here.

So – you want to stop your OpenShift cluster? There are many reasons why you may want to stop your OpenShift cluster. Maybe you have an annual disaster recovery test where you shut down a whole datacenter. Perhaps you want to do some maintenance to your infrastructure or the hypervisor or storage that your cluster is hosted on. It’s not an uncommon to need to be able to do this, so I have collated some of the best practices I have experienced across a multitude of environments, both large and small.

Here is the process that I recommend to use as a best practice in order to stop and start your OpenShift cluster(s). Following this process will give you the best chance of a trouble free maintenance window. As with all things, you should exercise care with this process on your important clusters. Try it on an unimportant environment first and see if it is a good fit for you.

Important: This process will cause an outage to any application workload running on the cluster until the cluster is fully started. The cluster itself will be unavailable until manually started. Care should be taken to run this process only on appropriate environments. It is recommended to have backups available of your environment.

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Red Hat Enterprise Linux 8 training and certification now available

With the release of Red Hat Enterprise Linux 8, the Training and Certification team also announced its launch of offerings to coincide with the new version. Courses and exams contributing to the Red Hat Certified System Administrator (RHCSA) title are available on redhat.com and in the Red Hat Learning Subscription.

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Red Hat Services at Summit 2019: Event Recap

Thank you to everyone who attended Summit 2019 in Boston and engaged with Red Hat Services! Our wonderful customers, partners, and attendees fostered engaging conversations with our team. We appreciate each of you who sought us out in the Customer Success Zone and the Partner Success Lounge to ask thoughtful questions, learn more about enabling yourself to adopt Red Hat technologies, and participated in our events. For those who weren’t able to connect with us, here’s what you missed: 

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OpenShift – From Design and Deploy to Deliver and Transform: Optimising Distributed Teams with Agile Practices

Previously published on She ITs and Giggles.

Overview

Frequently when I’m on site I am not directly asked but I am expected to provide answers to my customers how to get the best use of a technology. In this post I’m examining a recent scenario around providing structure around deploying OpenShift in order to provide a collaboration environment that would aide the use of this technology. We were also deploying OpenShift but writing about OpenShift deployment is a well covered subject across the board.

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Take advantage of Training and Certification opportunities at Red Hat Summit

The Training and Certification organization is gearing up for Red Hat Summit 2019 in Boston! Stop by our booth space to learn about the countless innovations we developed over the past year, new offerings, updates to our certification programs, and more. Visit us to learn about the exciting new releases and events happening next week!

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Communities of practice: Straight from the open source

Every solution starts with sharing a problem. At Red Hat, when we talk about “open source,” we’re talking about a proven way of collaborating to create technology. The freedom to see the code, to learn from it, to ask questions and offer improvements. This is the open source way. However, bringing together people in your organization to collaborate is often easier said than done.

At Red Hat, we’ve created “Communities of Practice” (CoP) to help our own people collaborate, especially on new and emerging technologies–including automation.

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UFCG’s students build open source skills with Red Hat Academy

Universidade Federal de Campina Grande (UFCG), a public university in Brazil, has a rich history of providing its students with a vast knowledge of open source skills. For over 15 years, this university has been a prominent OpenStack community contributor globally with more than 150,000 lines of developed code and 30 individual contributors. The university is also contributing to the ManageIQ community as well.

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