Note
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IoT Edge can be installed on Kubernetes by using KubeVirt technology. KubeVirt is an open source, Cloud Native Computing Foundation (CNCF) project that offers a Kubernetes virtualization API and runtime to define and manage virtual machines.
Architecture
| Note | Description |
|---|---|
| 1 | Install KubeVirt Custom Resource Definitions (CRDs) into the Kubernetes cluster. Like the Kubernetes cluster, management and updates to KubeVirt components are outside the purview of IoT Edge. |
| 2️ | A KubeVirt VirtualMachine custom resource is used to define a Virtual Machine with required resources and base operating system. A running instance of this resource is created in a Kubernetes Pod using KVM and QEMU technologies. If your Kubernetes node itself is a Virtual Machine, you'll need to enable Nested Virtualization to use KubeVirt. |
| 3️ | The environment inside the QEMU container is just like an OS environment. IoT Edge and its dependencies (like the Docker container engine) can be setup using standard installation instructions or a cloud-init script. |
Sample
A functional sample for running IoT Edge on Azure Kubernetes Service (AKS) using KubeVirt is available at https://aka.ms/iotedge-kubevirt.