Module 3: Declarative IaC for Automating VM Creation

Now you will use the YAML tab to automate the creation of a new VM. We’ve provided the two things you require to do this: . A virtual machine image of the desired OS, basic configuration, and if appropriate, the apps deployed. . The YAML manifest to instruct OpenShift how to deploy this

Please don’t forget to delete this new virtual machine winweb03 when done with this lab. If you do not, there will not be resources available to finish the workshop.

Use the YAML manifest to create the VM

  1. Make sure you’re in the proper namespace by using the Projects: drop-down on the top bar to select the windowsnetworking-sample_username project.

  2. Click VirtualMachines → Create → With YAML in the top right corner.

    Access VM YAML

  3. Delete the pre-created YAML. Copy/Paste the YAML template below. Click Create and notice the new VM is created.

    Paste YAML and Create 
    apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
  labels:
    app: winweb03
    app.kubernetes.io/part-of: 3-Tier-App
    vm.kubevirt.io/template.revision: '1'
    vm.kubevirt.io/template.version: v0.25.0
  name: winweb03
  namespace: "windowsnetworking-sample_username"
spec:
  dataVolumeTemplates:
  - apiVersion: cdi.kubevirt.io/v1beta1
    kind: DataVolume
    metadata:
      name: winweb03
    spec:
      source: # <1>
        http:
          url: 'http://s3.us-east.cloud-object-storage.appdomain.cloud/roadshowocpvirt/winweb01.qcow2'
      storage:
        resources:
          requests:
            storage: 90Gi
  running: true
  template:
    metadata:
      labels:
        app: winnetworking
    spec:
      domain:
        clock:
          timer:
            hpet:
              present: false
            hyperv: {}
            pit:
              tickPolicy: delay
            rtc:
              tickPolicy: catchup
          utc: {}
        cpu:
          cores: 1
          sockets: 2
          threads: 1
        devices:
          disks:
          - disk:
              bus: sata
            name: rootdisk
          inputs:
          - bus: usb
            name: tablet
            type: tablet
          interfaces:
          - masquerade: {}
            model: e1000e
            name: default
        features:
          acpi: {}
          apic: {}
          hyperv:
            frequencies: {}
            ipi: {}
            relaxed: {}
            reset: {}
            runtime: {}
            spinlocks:
              spinlocks: 8191
            synic: {}
            synictimer:
              direct: {}
            tlbflush: {}
            vapic: {}
            vpindex: {}
          smm:
            enabled: true
        firmware:
          bootloader:
            efi: {}
        machine:
          type: q35
        resources:
          requests:
            memory: 6Gi
      networks:
      - name: default
        pod: {}
      terminationGracePeriodSeconds: 3600
      volumes:
      - dataVolume:
          name: winweb03
        name: rootdisk
    1 The virtual machine image

  4. Watch the new winweb03 virtual machine go through three phases:

    1. WaitingForVolumeBinding - a new storage volume is created for this vm.

      winweb03 - Waiting for Volume Binding

    2. Provisioning - identifying the target OpenShift Node, marshalling the compute resources, downloading the vm image.

      winweb03 - Provisioning

    3. Running - the virtual machine is available.

      winweb03 - Running

  5. Please Delete the new virtual machine to make room on the workshop cluster for later activities.

    1. Click Actions → Delete and then on the nag window, click Delete to free up resources.

      winweb03 - Deleting
If you don’t delete winweb03 you are likely not going to be able to finish this workshop.

Next Steps

Congratulations! You created a virtual machine with nothing but a YAML manifest and a virtual machine image file.