examples: Add CirrOS SATA example

This just shows off the ability to define a VM with missing volume
disks. For now we can't change the bus of the default disks that are
generated thus this is a SATA based example using Cirros.

This will likely be replaced in the future with a Flavor and Preferences
based example that keeps the bus as virtio by default.

Signed-off-by: Lee Yarwood <lyarwood@redhat.com>

examples/vm-cirros-sata.yaml

@@ -0,0 +1,30 @@
+---
+apiVersion: kubevirt.io/v1
+kind: VirtualMachine
+metadata:
+  labels:
+    kubevirt.io/vm: vm-cirros-sata
+  name: vm-cirros-sata
+spec:
+  running: false
+  template:
+    metadata:
+      labels:
+        kubevirt.io/vm: vm-cirros-sata
+    spec:
+      domain:
+        devices: {}
+        resources:
+          requests:
+            memory: 128Mi
+      terminationGracePeriodSeconds: 0
+      volumes:
+      - containerDisk:
+          image: registry:5000/kubevirt/cirros-container-disk-demo:devel
+        name: containerdisk
+      - cloudInitNoCloud:
+          userData: |
+            #!/bin/sh
+
+            echo 'printed from cloud-init userdata'
+        name: cloudinitdisk

tools/vms-generator/utils/utils.go

@@ -85,6 +85,7 @@ const (
 	VmAlpineMultiPvc   = "vm-alpine-multipvc"
 	VmAlpineDataVolume = "vm-alpine-datavolume"
 	VMPriorityClass    = "vm-priorityclass"
+	VmCirrosSata       = "vm-cirros-sata"
 )
 
 const VmiReplicaSetCirros = "vmi-replicaset-cirros"
@@ -729,6 +730,17 @@ func GetVMCirros() *v1.VirtualMachine {
 	return vm
 }
 
+func GetVMCirrosSata() *v1.VirtualMachine {
+	vm := getBaseVM(VmCirrosSata, map[string]string{
+		kubevirtIoVM: VmCirrosSata,
+	})
+
+	addContainerDisk(&vm.Spec.Template.Spec, fmt.Sprintf(strFmt, DockerPrefix, imageCirros, DockerTag), v1.DiskBusSATA)
+	addNoCloudDisk(&vm.Spec.Template.Spec)
+	vm.Spec.Template.Spec.Domain.Devices = v1.Devices{}
+	return vm
+}
+
 func GetTemplateFedoraWithContainerDisk(containerDisk string) *Template {
 	vm := getFedoraVMWithoutDisk()
 	initFedoraWithDisk(&vm.Spec.Template.Spec, containerDisk)

tools/vms-generator/vms-generator.go

@@ -76,6 +76,7 @@ func main() {
 		utils.VmAlpineMultiPvc:   utils.GetVMMultiPvc(),
 		utils.VmAlpineDataVolume: utils.GetVMDataVolume(),
 		utils.VMPriorityClass:    utils.GetVMPriorityClass(),
+		utils.VmCirrosSata:       utils.GetVMCirrosSata(),
 	}
 
 	var vmis = map[string]*v1.VirtualMachineInstance{