Merge pull request #8275 from ashleyschuett/add-kubevirt-addon

Add KubeVirt addon

deploy/addons/kubevirt/README.md

@@ -0,0 +1,4 @@
+## kubevirt Addon
+[kubevirt](https://kubevirt.io/) - KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized.
+
+More info can be found by reading the tutorial ["How to use KubeVirt with minikube"](https://minikube.sigs.k8s.io/docs/tutorials/kubevirt/)

deploy/addons/kubevirt/pod.yaml.tmpl

@@ -0,0 +1,77 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  namespace: kube-system
+  name: kubevirt-scripts
+  labels:
+    kubernetes.io/minikube-addons: kubevirt
+    addonmanager.kubernetes.io/mode: Reconcile
+data:
+  uninstall.sh: |
+    #!/bin/bash
+
+    kubectl delete -f /manifests/kubevirt.yaml
+
+    kubectl delete -f /manifests/kubevirt-base.yaml
+
+  install.sh: |
+    #!/bin/bash
+
+    export KUBEVIRT_VERSION=$(curl -s https://api.github.com/repos/kubevirt/kubevirt/releases | grep tag_name | grep -v -- - | sort -V | tail -1 | awk -F':' '{print $2}' | sed 's/,//' | xargs)
+    echo $KUBEVIRT_VERSION
+
+    curl -Ls "https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-operator.yaml" -o /manifests/kubevirt-base.yaml
+
+    kubectl create -f /manifests/kubevirt-base.yaml
+
+    EMULATION=$(egrep 'svm|vmx' /proc/cpuinfo)
+    if [ -z "$EMULATION" ]; then
+      echo "use emulation"
+      kubectl create configmap kubevirt-config -n kubevirt --from-literal debug.useEmulation=true
+    fi;
+
+    curl -sL "https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-cr.yaml" -o /manifests/kubevirt.yaml
+
+    kubectl create -f /manifests/kubevirt.yaml
+
+    sleep infinity
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    kubernetes.io/minikube-addons: kubevirt
+    addonmanager.kubernetes.io/mode: Reconcile
+  name: kubevirt-install-manager
+  namespace: kube-system
+spec:
+  containers:
+  - command:
+    - /bin/bash
+    - -c
+    - /kubevirt-scripts/install.sh
+    image: bitnami/kubectl:1.17
+    imagePullPolicy: IfNotPresent
+    name: kubevirt-provisioner
+    lifecycle:
+      preStop:
+        exec:
+          command:
+          - /bin/bash
+          - -c
+          - /kubevirt-scripts/uninstall.sh
+    terminationMessagePath: /dev/termination-log
+    terminationMessagePolicy: File
+    volumeMounts:
+    - mountPath: /manifests
+      name: tmp
+    - mountPath: /kubevirt-scripts
+      name: kubevirt-scripts
+  terminationGracePeriodSeconds: 60
+  volumes:
+  - name: tmp
+    emptyDir: {}
+  - name: kubevirt-scripts
+    configMap:
+      defaultMode: 0777
+      name: kubevirt-scripts

pkg/addons/config.go

@@ -82,6 +82,11 @@ var Addons = []*Addon{
 		set:       SetBool,
 		callbacks: []setFn{enableOrDisableAddon},
 	},
+	{
+		name:      "kubevirt",
+		set:       SetBool,
+		callbacks: []setFn{enableOrDisableAddon},
+	},
 	{
 		name: "logviewer",
 		set:  SetBool,

pkg/minikube/assets/addons.go

@@ -189,6 +189,14 @@ var Addons = map[string]*Addon{
 			"0640",
 			false),
 	}, false, "istio"),
+	"kubevirt": NewAddon([]*BinAsset{
+		MustBinAsset(
+			"deploy/addons/kubevirt/pod.yaml.tmpl",
+			vmpath.GuestAddonsDir,
+			"pod.yaml",
+			"0640",
+			false),
+	}, false, "kubevirt"),
 	"metrics-server": NewAddon([]*BinAsset{
 		MustBinAsset(
 			"deploy/addons/metrics-server/metrics-apiservice.yaml.tmpl",

site/content/en/docs/tutorials/kubevirt.md

@@ -0,0 +1,42 @@
+---
+title: "How to use KubeVirt with minikube"
+linkTitle: "KubeVirt support"
+weight: 1
+date: 2020-05-26
+description: >
+  Using KubeVirt with minikube
+---
+
+## Prerequisites
+
+- kvm2 driver
+
+### Enable KubeVirt on minikube
+Minikube can be started with default values and those will be enough to run a quick example, that being said, if you can spare a few more GiBs of RAM (by default it uses 2GiB), it’ll allow you to experiment further.
+
+We’ll create a profile for KubeVirt so it gets its own settings without interfering what any configuration you might have already, let’s start by increasing the default memory to 4GiB:
+
+```shell script
+minikube config -p kubevirt set memory 4096
+minikube config -p kubevirt set vm-driver kvm2
+minikube start -p kubevirt
+```
+
+To enable this addon, simply run:
+```shell script
+minikube addons enable kubevirt
+```
+
+In a minute or so kubevirt's default components will be installed into your cluster.
+You can run `kubectl get pods -n kubevirt` to see the progress of the kubevirt installation.
+
+
+### Disable KubeVirt
+To disable this addon, simply run:
+```shell script
+minikube addons disable kubevirt
+```
+
+### More Information
+
+See official [Minikube Quickstart](https://kubevirt.io/quickstart_minikube/) documentation for more information and to install KubeVirt without using the addon.