Service broker template yaml error with 'min' command syntax in 8.17

[aardis]

After upgrading to 8.17 I'm getting this error in my yaml template regarding the usage of "min" (This worked in 8.16 and prior)

      capacityGb: ${(length(input.disks)>0) ? min([input.disks[count.index].size,input.maxDiskSize]):0}

Invalid argument type calling 'min': expected array of numbers or string but was array of null and a number.

Obviously reading the error message I understand some null value is getting in there, but I have a default for my maxDiskSize set 

  maxDiskSize:
    type: integer
    $dynamicDefault: /data/vro-actions/com.ge.storage.configuration/getMaxChunkSize?location={{location}}
    default: 10240

And my disks definition:

  disks:
    type: array
    title: additional disks
    items:
      title: disk
      type: object
      properties:
        mountPoint:
          type: string
          title: Mount Point
        size:
          type: integer
          title: Size in GB
        fsType:
          type: string
          title: File System Type
    maxItems: 16

I'm not quite sure where the 'null' value is coming in, but I tried setting a disk default size to 1 and that didn't help either.  I'm not a yaml expert, and the min option I can't find a lot of documentation on it but if I remove it my disk add fails.  I inherited this code so I'm just trying to update it at this point, any opinion would be greatly appreciated.

[tarek_nader]

Edit Blueprint YAML file & add this, hope it fix your current issue:-

disks:
    type: array
    minItems: 0
    maxItems: 10

[aardis]

Thanks for the suggestion, adding a minItems to that field did not change the syntax error.  I'm not sure what changed going into 8.17 but if anyone has a link to documentation with changes maybe that would help failing a suggestion on fixing or changing my yaml syntax to work properly.

[tarek_nader]

There is nothing mentioned in vRA 8.17 release note about changing in blueprint YAML; so this issue is my be YAML indentation or recent modifications happened on YAML syntax.

https://docs.vmware.com/en/VMware-Aria-Automation/services/rn/vmware-aria-automation-release-notes/index.html

Could you share further logs / event / screenshot for the issue? Also try to restore to last working version from 'version history' 

------------------------------
Tarek Nader
www.linkedin.com/in/tnader-70853361
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[aardis]

This is strictly a problem with 8.17 and the yaml.  My vRA 8.16 still works with the same template, only stopped working after the upgrade in my dev env.  I've got no error logs, since it's just the yaml syntax error in the template.  I'll just have to figure out another way to do it if min isn't working as it was for me in 8.16(and earlier).  

[aardis]

Apparently there was some change in 8.16.2, I can't find it exactly.  However, I was able to get some help and changed the code and now i'm working again.  In case someone comes upon this at some future point, changed min to min([not_null]

      capacityGb: ${length(input.disks)>0?min([not_null(input.disks[count.index].size,0)+2,input.maxDiskSize]):0}

[tarek_nader]

Do it work when you add "not_null"?

Why you didn't use vRO action instead or custom forms ?

------------------------------
Tarek Nader
www.linkedin.com/in/tnader-70853361
------------------------------