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Easy to use KubeVirt demo based on minikube.
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**⚠️ This repository is deprecated and no longer maintained.** [](https://travis-ci.org/kubevirt/demo) # KubeVirt Demo This demo will guide you through setting up [KubeVirt](https://www.kubevirt.io) on - [minikube](#setting-up-minikube) 1.2+ - [kind](#setting-up-kind) 0.4+ - CRC 1.18+ ## Quickstart ### Deploy KubeVirt This demo assumes that `minikube` or `minishift` is [configured and running as described below](#setting-up-minikube) and that `kubectl` available on your system. If not, then please take a look at the guide [below](#setting-up-minikube). The first step is to start `minikube`: ```bash $ minikube config set vm-driver kvm2 $ minikube start --memory 4096 😄 minikube v1.0.1 on linux (amd64) 💿 Downloading Minikube ISO ... 142.88 MB / 142.88 MB [============================================] 100.00% 0s 🤹 Downloading Kubernetes v1.14.1 images in the background ... 🔥 Creating kvm2 VM (CPUs=2, Memory=2048MB, Disk=20000MB) ... 📶 "minikube" IP address is 192.168.39.47 🐳 Configuring Docker as the container runtime ... 🐳 Version of container runtime is 18.06.3-ce ⌛ Waiting for image downloads to complete ... ✨ Preparing Kubernetes environment ... 💾 Downloading kubelet v1.14.1 💾 Downloading kubeadm v1.14.1 🚜 Pulling images required by Kubernetes v1.14.1 ... 🚀 Launching Kubernetes v1.14.1 using kubeadm ... ⌛ Waiting for pods: apiserver proxy etcd scheduler controller dns 🔑 Configuring cluster permissions ... 🤔 Verifying component health ..... 💗 kubectl is now configured to use "minikube" 🏄 Done! Thank you for using minikube! ``` Before we can deploy KubeVirt we create a small config, to adjust KubeVirt to your environment. Specifically enabling software emulation for your VMs in case that no hardware virtualization support is present. ```bash $ kubectl create namespace kubevirt # Either nesting as described [below](#setting-up-minikube) will be used, or we configure emulation if # no nesting is available: $ minikube ssh -- test -e /dev/kvm \ || kubectl create configmap -n kubevirt kubevirt-config --from-literal debug.useEmulation=true ``` Now you are finally ready to deploy KubeVirt using our operator (comparable to an installer): ```bash $ kubectl apply -f https://github.com/kubevirt/kubevirt/releases/download/v0.34.2/kubevirt-operator.yaml … deployment.apps/virt-operator created $ kubectl apply -f https://github.com/kubevirt/kubevirt/releases/download/v0.34.2/kubevirt-cr.yaml kubevirt.kubevirt.io/kubevirt created ``` The initial deployment can take a long time, because a number of pods have to be pulled from the internet. We'll watch the operator status to determine when the deployment is completed: ```bash $ kubectl wait --timeout=180s --for=condition=Available -n kubevirt kv/kubevirt kubevirt.kubevirt.io/kubevirt condition met ``` Congratulations, KubeVirt was successfully deployed. ### Install virtctl An additional binary is provided to get quick access to the serial and graphical ports of a VM, and handle start/stop operations. The tool is called `virtctl` and can be retrieved from the release page of KubeVirt: ```bash $ curl -L -o virtctl https://github.com/kubevirt/kubevirt/releases/download/v0.34.2/virtctl-v0.34.2-linux-amd64 $ chmod +x virtctl ``` #### Installing with krew If you installed [krew](https://krew.dev), you can install virtctl as a kubectl plugin: ```bash $ kubectl krew install virt ``` ### Starting and stopping a VirtualMachine Once you deployed KubeVirt you are ready to launch a VM: *if `virtctl` is installed via krew, please use `kubectl virt ...` instead of `./virtctl ...`* ```bash # Creating a virtual machine $ kubectl apply -f https://raw.githubusercontent.com/kubevirt/demo/master/manifests/vm.yaml # After deployment you can manage VMs using the usual verbs: $ kubectl describe vm testvm # To start a VM you can use, this will create a VM instance (VMI) $ ./virtctl start testvm # The interested reader can now optionally inspect the instance $ kubectl describe vmi testvm # To shut the VM down again: $ ./virtctl stop testvm # To delete $ kubectl delete vm testvm # To create your own $ kubectl apply -f $YOUR_VM_SPEC ``` ### Accessing VMs (serial console & VNC) *if `virtctl` is installed via krew, please use `kubectl virt ...` instead of `./virtctl ...`* ```bash # Connect to the serial console $ ./virtctl console testvm # Connect to the graphical display # This requires remote-viewer from the virt-viewer package and a graphical desktop from where you run virtctl $ ./virtctl vnc testvm ``` ## Next steps ### User Guide Now that KubeVirt is up an running, you can take a look at the [user guide](https://kubevirt.io/user-guide/) to understand how you can create and manage your own virtual machines. ## Appendix ### Setting up `Minikube` 1. (Optional) Minikube has support for nested virtualization, it can be enabled as described [here](https://docs.fedoraproject.org/en-US/quick-docs/using-nested-virtualization-in-kvm/). 2. If not installed, install minikube as described [here](https://github.com/kubernetes/minikube/): 1. Install the [kvm2 driver](https://minikube.sigs.k8s.io/docs/drivers/kvm2/) 2. Download the [`minikube` binary](https://github.com/kubernetes/minikube/releases) 3. Launch minikube with the desired memory ```bash $ minikube start --vm-driver kvm2 --memory 4096 ``` 3. Install `kubectl` via a [package manager](https://kubernetes.io/docs/tasks/tools/install-kubectl/#install-kubectl-binary-via-native-package-management) or [download](https://kubernetes.io/docs/tasks/tools/install-kubectl/#install-kubectl-binary-via-curl) it ### Setting up `kind` 1. If not installed, install kind as described [here](https://github.com/kubernetes-sigs/kind) 2. Launch kind ```bash $ tee cluster.yaml <<EOC kind: Cluster apiVersion: kind.sigs.k8s.io/v1alpha3 nodes: - role: control-plane - role: worker - role: worker EOC $ kind create cluster --config cluster.yaml ``` ### Running on CRC CRC is just another Kubernetes distribution, and you can also use `kubectl` to interact with such a cluster. However, the `oc` tool is part of OKD and provides additional commands for managing your cluster. 1. Get the `crc` tool 1. Follow the steps at https://github.com/code-ready/crc/releases to get and install CRC
