Search Results for: openshift

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How to migrate from Red Hat OpenShiftSDN/OVN-Kubernetes to Cilium

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Recently, I’m seeing more and more queries about migrating to Cilium within an existing Red Hat OpenShift cluster, due to Cilium’s advanced networking capabilities, robust security features, and enhanced observability out-of-the-box. This increase of interest is also boosted by the fact that Cilium became the first Kubernetes CNI to graduate in the CNCF Landscape. In … Continue reading How to migrate from Red Hat OpenShiftSDN/OVN-Kubernetes to Cilium →

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Red Hat OpenShift – Sorry, your reply was invalid: IP expected to be in one of the machine networks

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The Issue When running the command: openshift-install create cluster And you provide an API IP address which is not in the CIDR range 10.0.0.0/16, you recieve the below error. INFO Defaulting to only available network: VM Network X Sorry, your reply was invalid: IP expected to be in one of the machine networks: 10.0.0.0/16 ? … Continue reading Red Hat OpenShift – Sorry, your reply was invalid: IP expected to be in one of the machine networks →

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Openshift-install CLI Tool – Crash – Unable to decode instructions – Apple MacBook M1

Kubernetes, ,

The Issue When running the OpenShift-Install CLI tool on my Apple MacBook M1 to create an OpenShift Cluster I kept hitting the same error: assertion failed [inst.has.value()]: failed to decode instruction: 0x0 The Cause This is believed to be an issue created with the use of Rosetta 2 and Golang, and is somewhat documented on … Continue reading Openshift-install CLI Tool – Crash – Unable to decode instructions – Apple MacBook M1 →

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OpenShift 4.10 on VMware – Introducing the out-of-the-box vSphere CSI Driver installation

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OpenShift Container Platform defaults to using an in-tree (non-CSI) plug-in to provision vSphere storage. What’s New? In OpenShift 4.9, the out-of-the-box installation of the vSphere CSI driver was tech preview. This has now moved to GA! This means during an Installer-Provisioned-Installation cluster bring up, the vSphere CSI driver will be enabled. This is part of … Continue reading OpenShift 4.10 on VMware – Introducing the out-of-the-box vSphere CSI Driver installation →

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Tanzu Observability – First look at monitoring OpenShift & VMware Cloud on AWS

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Recently, I was involved in some work to assist the VMware Tanzu Observability team to assist them in updating their deliverables for OpenShift. Now it’s generally available, I found some time to test it out in my lab. For this blog post, I am going to pull in metrics from my VMware Cloud on AWS … Continue reading Tanzu Observability – First look at monitoring OpenShift & VMware Cloud on AWS →