The newly released Red Hat Certified Engineer (RHCE) exam (EX294) updated to Red Hat Enterprise Linux 8 allows candidates to demonstrate they have the skills to manage and configure multiple systems using state of the art automation tools. Including Red Hat Ansible Engine in this test came as a result of increasingly more IT organizations facing challenges related to scaling infrastructure and efficiently turning to Red Hat Ansible Automation as a common language to automate across different functions. As a result, system administrators need to understand more than how to deploy, configure, and manage an operating system—they need to know how to automate functions and how to make the automation itself scalable.
Disclaimer: the high-level architecture solution and the related demo code is an opinionated implementation to solve the problem described here. The author believes that DevOps is not about tools and frameworks, but a mindset and cultural change for teams. This is an implementation that aims to help a team on the DevOps journey of increasing shared understanding within traditional Development and Operation teams.
There are some challenges while adopting a PaaS Platform like OpenShift in an organization. Traditional IT teams have operated in silos where responsibilities for different parts of the Product lifecycle were distributed to different teams, for example, a development team and a release or production team. The teams’ domain of knowledge is, traditionally, limited to the activities they perform for their part of the chain of work and communication between these teams lacked flow or was done using ticketing systems that increase handoffs.
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.
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.
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:
Previously published on She ITs and Giggles.
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.
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!
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.