Get started with CubeCOS knowledge base (KB)

📄️Vritual Trusted Platform Modules (vTPM) for virtual machines

Configure CubeCOS to provide Virtual Trust Platform Module (vTPM) capabilities to newly created virtual machines. This guide walks you through configuring a key store and add vTPM to virtual machine templates.

📄️Resolving VM evacuation failures during CubeCOS rolling upgrades

Learn how to resolve aborted CubeCOS rolling upgrades caused by VM evacuation failures. This is a step-by-step guide to manual migration and node reboot for version 3.1.0 or higher.

📄️LBaaS false health errors

Learn how to resolve false LBaaS health errors in clusters with more than three compute nodes running CubeCOS 3.0.0.

📄️Management interface installation errors when using VLAN

Learn how to diagnose and resolve installation errors in the CubeCOS management interface when VLAN networking is enabled. This guide explains the root cause and provides step-by-step remediation.

📄️Fix missing web console service certificate

Learn how to diagnose and resolve missing SSL certificates in the NoVNC console service. This guide explains why the NoVNC proxy service cannot establish secure connections and how to restore the required certificate file.

📄️Fix erroneous Fixpack display after major upgrade

The fixpack information should not remain visible after a major firmware upgrade in CubeCOS.

📄️Increase PCIe ports to support multiple input/ output devices per virtual machine

Configure additional PCIe ports in CubeCOS to support virtual machines with more than two network interfaces and resolve attachment failures.

📄️Override the Default Docker Network

To prevent IP address conflicts with existing network subnets, configure a custom Docker bridge network with a unique, non-overlapping subnet range.

📄️Get started with CubeCOS KB

Explore the in depth with technical documentation, API references, troubleshooting guides, and cloud operations best practices. Built for administrators, engineers, and cloud architects, this knowledge base is your resource for building and scaling with confidence.

📄️Resolve High Disk Latency and Slow IOPS for k3s on VM

k3s workloads on VMs backed by Ceph volumes cloned from snapshots experience high disk latency and slow IOPS due to copy-on-write overhead from an un-flattened parent image. Resolving requires flattening the RBD image or configuring k3s to use a lower-latency data path.

📄️Apply custom scripts to triggers

Learn how to upload custom scripts that will run when certain events are triggered.