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Streamlining Node Access with K9s and kubectl-node-shell

Debugging Kubernetes clusters often requires direct access to nodes. There are several ways to access your nodes... ssh, iLO/DRAC, kubectl debug, etc. I love shortcuts, aliases, functions, and scripts that can help me quickly gather data and help with my troubleshooting. I have found K9s, a powerful terminal UI for Kubernetes, and how to enhance it with kubectl-node-shell for seamless node access. This quick blog will hopefully give you another tool you can use with your kubernetes clusters.

Octavia OVN Overview

Octavia provides the ability to utilize OVN(Open Virtual Networking) as a provider driver to deploy layer 4 loadbalancing. While Octavia OVN loadbalancers may not be as feature rich as Amphora based loadbalancing OVN based loadbalancers provide a resource efficient, fast deploying and highly availble loadbalancing solution. View the Amphora and OVN loadbalancing comparison matrix for more info about which features are supported.

For additional information regarding Octavia OVN loadbalancers view the Octavia OVN Docs.

CAPI powered TALOS clusters on Rackspace OpenStack Flex

We detail how to build immutable, secure, and minimal Kubernetes clusters by combining Cluster API (CAPI) with TALOS OS. This powerful stack allows you to leverage the cloud-agnostic management capabilities of CAPI while benefiting from TALOS's minimal attack surface. Deploying on RackSpace OpenStack Flex grants you complete control over your underlying infrastructure, maximizing resource efficiency and providing a production-ready cloud-native environment. This integration simplifies day-2 operations and delivers enterprise-grade security for your private cloud.

Building a VyOS image for use in Rackspace OpenStack Flex

In the beginning there was Vyatta, a free software-based alternative to hardware-based routing products offered by network beheamoths like Cisco and Juniper. After being acquired by Brocade, development of Vyatta Core, the community edition of the product, began to languish until its abandonment shortly thereafter. VyOS formed from the ashes and has continued to build upon the core to deliver a highly-functional and highly-competitive routing platform.

Deploying Horizon 8 with Manual Pools and Farms on Rackspace OpenStack

omnissa-horizon

By utiliizing manual pools and farms in Horizon 8, organizations can leverage infrastructure platforms not natively supported for automated pool provisioning. This blog post details a real-world deployment using manual pools and farms running on OpenStack and was inspired by the blog post "Horizon 8 with manual pools and farms – using alternative hypervisors," written by Omnissa, which introduced how their incredible VDI solution can be leveraged on non-proprietary platforms.

  • in ovn
  • 7 min read

Repairing pod communication problems with the join network

While converting a production region to Kube-OVN managed by Helm chart from its original kubespray installation as detailed in the Genestack doc docs/k8s-cni-kube-ovn-helm-conversion.md, we encountered an issue with some of the kube-ovn-cni pods when they restarted with an inability to communicate with the join network, and crash looping or pending pod states. We found that a reboot of the pod's node generally solved this problem, but also discovered a method that could repair connectivity with the join network without rebooting the node.

Accelerated Genestack Smoke Testing via Self-Hosted GitHub Runners on Rackspace

Face it: The modern DevOps world is all about speed, security, and not forgetting to have a healthy dose of cynicism about manual processes. Because manual is so last decade, am I right? This post proudly showcases how to use a GitHub self-hosted runner to spin up and smoke test a Genestack (OpenStack) deployment by Rackspace. If you don’t finish the entire process in under 20 minutes, you might as well go brew another pot of coffee, or question your life choices.