Category: Application Development
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Topology Manager and OpenShift/Kubernetes
I recently had to work with the Kubernetes Topology Manager and OpenShift. Here is a braindump on Topology Manager
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Kube 1.25.2 on RHEL9 P10
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Switching to use Kubernetes with Flannel on RHEL on P10
I needed to switch from calico to flannel. Here is the recipe I followed to setting up Kubernetes 1.25.2 on a Power 10 using Flannel.
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Using Kubernetes v1.25.2 on RHEL9 with Power10
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Operator Doesn’t Install Successfully: How to restart it
You see there is an issue with the unpacking your operator in the Operator Hub. Recreate the Job that does the download by recreating the job and subscription. Find the Job (per RH 6459071) 2. Reset the download the Job 3. Recreate your Subscription and you’ll see more details on the Job’s failure. Keep an […]
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Downloading pvsadm and getting VIP details
This article is a how-to grab VIP details from a PowerVS instance and VIP.
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PowerVS: Grabbing a VM Instance Console
Grabbing a VM Instance Console from the ibmcloud tool’s commandline.
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cluster-api: notes
Recently, I’ve begun researching and building code integrating and using the cluster-api and providers (CAPI). To get acquainted with the cluster-api and related providers, I reviewed: Cluster API Intro and Deep Dive – Yuvaraj Balaji Rao Kakaraparthi & Vince Prignano, VMware Build Your Own Cluster API Provider the Easy Way – Anusha Hegde, VMware & […]
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What to do when you see “Application is not available” on the OpenShift Console
This post helps those who are stuck with “Application is not available” on the OpenShift Console on IBM Virtual Private Cloud (VPC).
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OpenShift Descheduler Operator: How-To
In OpenShift, the kube-scheduler binds a unit of work (Pod) to a Node. The scheduler reads from a scheduling queue the work, retrieves the current state of the cluster, scores the work based on the scheduling rules (from the policy) and the cluster’s state, and prioritizes binding the Pod to a Node. These nodes are […]