One of the benefits of Kubernetes is that it allows you to run your applications in the exact same way in your test environment as in your production environment. If you followed along with my first article on this topic, How to install Red Hat OpenShift Local on your laptop, you now have a local OpenShift environment.
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Deploy an application in Red Hat OpenShift on your laptop
Now that your environment has been set up, deploy a sample application on an OpenShift Local cluster.
rgerardi
Thu, 4/20/2023 at 11:19pm
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"Containers" by Jim Bahn is licensed under CC BY 2.0
How to install Red Hat OpenShift Local on your laptop
Install Red Hat OpenShift Local on your own machine to test your work before deployment.
rgerardi
Fri, 4/14/2023 at 6:53pm
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"Containers" by Jim Bahn is licensed under CC BY 2.0
Having a lab where you can test your application or configuration before sending it to a production environment is an invaluable resource to ensure deployments are smooth and production is stable.
Topics:
Containers
No wizardry needed to use Ansible's magic variable 'hostvars'
Get past the illusion of hostvars being difficult and begin using them in your playbooks, tasks, and roles.
Use Redfish to manage servers automatically
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Image by Gerd Altmann from Pixabay
Learn the basics of using Redfish and how to set up the Redfish Mockup Server.
Topics:
Application modernization
Automation
Test TCP ports with Python and Scapy
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Photo by Gavin Allanwood on Unsplash
Get greater control over TCP port checking with a DIY, customizable approach using Python and Scapy.
Stop using Telnet to test ports
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Image by Michael Schwarzenberger from Pixabay
Make life simpler by automating network checks with tools like Expect, Bash, Netcat, and Nmap instead.
Enabling Kubernetes self-service the operator way
Learn how operators can serve as governance tools in a multitenant setting.
gshankar
Tue, 4/4/2023 at 9:24pm
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Image by lisa runnels from Pixabay
This article presents an approach for using a custom operator and the Operator SDK to transform a collection of YAML files into a custom resource. It outlines the steps for creating a distinctive resource CustomResource / CustomResourceDefinition that you can use to deploy a predefined set of resources, such as a particular policy, governance, or deployment.
How to get started with Ansible Private Automation Hub
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Image by Gerd Altmann from Pixabay
Learn how to use Red Hat Ansible Automation Private Automation Hub.
Topics:
Ansible
Automation
How we achieved a 6-fold increase in Podman startup speed
By cutting unnecessary processes, you can realize near-real-time container startup, critical in cars and other time-sensitive applications.
Dan Walsh
Mon, 4/3/2023 at 9:43pm
In August 2022, Dan Walsh (one of the authors of this article) moved out of his role as container runtimes architect at Red Hat to architect for the Red Hat Enterprise Linux (RHEL) for Edge team. Specifically, he has moved to the Red Hat In-Vehicle Operating System (RHIVOS) Containers On Wheels (COW) team.
Monitor and troubleshoot applications with Glances and InfluxDB
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Image by Lucas Wendt from Pixabay
Set up a quick application observability solution that records metrics in real time and pipes them into a database for analysis.
Topics:
Monitoring
Troubleshooting