Kubernetes

KubeVirt – Creating Data Volume fails – DataVolume.storage spec is missing accessMode and volumeMode

The Issue I had a freshly deployed Red Hat OpenShift cluster on which I had set up OpenShift Virtualization (KubeVirt). When I tried to create my first data volume so I could start creating VMs, nothing happened. The ISO file upload would fail. Running oc describe dv {name} -n {namespace} showed the below event/error. DataVolume.storage … Continue reading KubeVirt – Creating Data Volume fails – DataVolume.storage spec is missing accessMode and volumeMode

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Cilium Hubble CLI – Using a local configuration file

Did you know that the Cilium Hubble CLI supports using a configuration file? Below is an example command where Isovalent Enterprise for Cilium is deployed and Hubble RBAC is configured. Therefore, I must provide additional details such as the server location and certificates to authenticate using the CLI. The steps in this blog post also … Continue reading Cilium Hubble CLI – Using a local configuration file

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

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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vSphere data loss bug returns – CBT issues in vSphere ESXI 8.0 update 2

The Issue I keep saying, there are no new ideas in technology, just re-hashes of old ones. That is also true for VMware and their data loss issues. The vSphere-based change block tracking (CBT) bug is back! I think I wrote 5 articles on this back in 2014/2015 with explanations and fixes! Veeam reported this … Continue reading vSphere data loss bug returns – CBT issues in vSphere ESXI 8.0 update 2