Multiple VM deployments with 3 or more disk

[kevindjones]

**Updated**
I would like to be able to provision a cloud.vsphere.machine with 3 or more disks. The disks will have different sizes that should come from a property group. I would also like to offer multiple VMs (count) in this deployment.

I can get 3 or more disk to deploy successfully, but only when requesting a single VM. If I request 2 or more VMs, this fails with "Shared disk are not supported" message.

Any examples would be appreciated. 

Thanks

[pnaidu]

You can use "allocatePerInstance: true" for all the 3 VMs and use the below mentioned property 

attachedDisks: '${map_to_object(slice(resource.disk[*].id, 2*count.index, 2*(count.index + 1)), "source")}'
       (this is an example in the doc where each machine will have two disks)

Reference doc: https://docs.vmware.com/en/vRealize-Automation/8.11/Using-and-Managing-Cloud-Assembly/GUID-3DBE3DFF-...

You can use the below-mentioned example as well

inputs:
  disks:
    type: array
    minItems: 0
    maxItems: 12
    items:
      type: object
      properties:
        size:
          type: integer
          title: Size (GB)
          minSize: 1
          maxSize: 2048
    default:
      - size: 1
      - size: 2
  VMcount:
    type: integer
    default: 1
resources:
  Cloud_Machine_1:
    type: Cloud.Machine
    allocatePerInstance: true
    properties:
      image: ubuntu
      flavor: small
      count: ${input.VMcount}
      attachedDisks: ${map_to_object(slice(resource.Cloud_vSphere_Disk_1[*].id, (length(input.disks))*count.index, (length(input.disks))*(count.index + 1)), "source")}
  Cloud_vSphere_Disk_1:
    type: Cloud.Volume
    allocatePerInstance: true
    properties:
      capacityGb: ${input.disks[count.index%(length(input.disks))].size}
      count: ${(length(input.disks))*(input.VMcount)}

[kevindjones]

Hi, thank you for the reply. I should have been more descriptive in my request as what you have posted does work. What I would like is 3 disks with 3 different sizes, where the sizes come from a property group. For simplicity, we can use the hardcoded values below.

resources:
  Cloud_vSphere_Disk_1:
    type: Cloud.vSphere.Disk
    allocatePerInstance: true
    properties:
      capacityGb: 1
      count: 2
  Cloud_vSphere_Disk_2:
    type: Cloud.vSphere.Disk
    allocatePerInstance: true
    properties:
      capacityGb: 2
      count: 2
  Cloud_vSphere_Disk_3:
    type: Cloud.vSphere.Disk
    allocatePerInstance: true
    properties:
      capacityGb: 3
      count: 2
###Machine###
  Cloud_vSphere_Machine_1:
    type: Cloud.vSphere.Machine
    allocatePerInstance: true
    properties:
      imageRef: myTemplate
      cpuCount: 1
      totalMemoryMB: 1024
      attachedDisks: ${map_to_object(slice(resource.Cloud_vSphere_Disk_1[*].id+resource.Cloud_vSphere_Disk_2[*].id+resource.Cloud_vSphere_Disk_3[*].id, 2*count.index, 2*(count.index + 1)), "source")}
      count: 2

In the above example, when I apply the same logic for the attachedDisks field as in the example, I end up with the below.

VM1 has 3 total disks (osTemplate+1GB+1GB)
VM2 has 3 total disks (osTemplate+2GB+2GB)  

The goal is:
VM1 has 4 total disks (osTemplate+1GB+2GB+3GB)
VM2 has 4 total disks (osTemplate+1GB+2GB+3GB)

Thanks in advance

[pnaidu · Accepted solution]

Tried the below-mentioned cloud template in my lab and I could see consistent deployment for Multi-machine and multiple static disks. I have used both property-group as well as capacity defined in cloud template.

inputs:
  machines:
    type: integer
    minimum: 1
resources:
  Cloud_Machine_1:
    type: Cloud.Machine
    allocatePerInstance: true
    properties:
      image: CentOS7-CloudInit
      flavor: cs360-medium
      count: ${input.machines}
      attachedDisks: ${map_to_object(slice(resource.diskA[*].id, count.index, count.index + 1) + slice(resource.diskB[*].id, count.index, count.index + 1) + slice(resource.diskC[*].id, count.index, count.index + 1) + slice(resource.diskD[*].id, count.index, count.index + 1), "source")}
  diskA:
    type: Cloud.Volume
    allocatePerInstance: true
    properties:
      count: ${input.machines}
      capacityGb: ${propgroup.propertyGroup.disk1Size}
  diskB:
    type: Cloud.Volume
    allocatePerInstance: true
    properties:
      count: ${input.machines}
      capacityGb: ${propgroup.propertyGroup.disk2Size}
  diskC:
    type: Cloud.Volume
    allocatePerInstance: true
    properties:
      count: ${input.machines}
      capacityGb: ${propgroup.propertyGroup.disk3Size}
  diskD:
    type: Cloud.Volume
    allocatePerInstance: true
    properties:
      count: ${input.machines}
      capacityGb: 5

Let me know how it works for you. 

[kevindjones]

Hi, this is the correct solution. The attachedDisk string that you have provided attaches the disk, as required. 

Many thanks!

[pnaidu]

Glad to hear that it worked for you.