We have below script which is changing VM's project from default to some other project but after we execute invoke-webrequest, we notice that it will change Vm's "spec_version" to different number than it's in out $body variable. That's the reason why invoke-webrequest is given below error. Just before we run invoke-webrequest, we checked that vm's configuration metadata "spec_version" is same than in $body that we are trying invoke. So it seems that invoke-webrequest is somehow first changing the vm's spec_version in vm's configuration data (in our case to 18) and after that trying to invoke spec_version = 16 on top of that. But because the version should be same, it's failing. Same error occured when you are trying the same in REST Explorer - "vms".



SCRIPT:

Import-Module d:\temp\PSNutanixPrismCentral.psm1

Invoke-NutanixPrismCentralLogin -Username "username@xxx.local" -Uri "https://prismcentral.xxxx.local:9440"



# Get non default projects

$Projects = Get-NutanixPrismCentralProjects

$NonDefaultProjects = $Projects| Where-Object {$_.Name -ne "default"}



# Get VMs on project default

$VMs = Get-NutanixPrismCentralVMs

$VMsOnDefaultProject = $VMs | Where-Object {$_.Project -eq "default"}



# Change project for testmachine

$vm = $vms |?{$_.name -eq "testmachine"}

$ProjectId = 1



$VM.config.metadata.project_reference.name = $Projects[$ProjectId].name

$VM.config.metadata.project_reference.uuid = $Projects[$ProjectId].uuid



$Body = $VM.config | ConvertTo-JSON -Depth 10



Invoke-WebRequest -Uri "$NutanixPrismCentralUrl/api/nutanix/v3/vms/$($VM.uuid)" -Headers $NutanixAuthenticationHeaders -Method PUT -Body $Body -ContentType "application/json"



ERROR:

Invoke-WebRequest : { "api_version": "3.1", "code": 409, "message_list": [ { "message": "Edit conflict: please retry change. Entity CAS version mismatch.", "reason": "CONCURRENT_REQUESTS_NOT_ALLOWED" } ], "state": "ERROR" }

At D:\temp\kopratest.ps1:63 char:2

+ Invoke-WebRequest -Uri "$NutanixPrismCentralUrl/api/nutanix/v3/vms/$ ...

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebExc

eption

+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand





BODY (variable that we are trying to invoke):

{

"spec": {

"cluster_reference": {

"kind": "cluster",

"name": "our cluster name",

"uuid": "00077c5f-2e66-241a-461e-ac1fgbc0c11f"

},

"description": "Used for testing project script)",

"resources": {

"num_threads_per_core": 1,

"vnuma_config": {

"num_vnuma_nodes": 0

},

"serial_port_list": [

],

"nic_list": [

],

"num_vcpus_per_socket": 1,

"num_sockets": 1,

"vga_console_enabled": true,

"gpu_list": [

],

"is_agent_vm": false,

"memory_size_mib": 3,

"boot_config": {

"boot_device_order_list": [

"CDROM",

"DISK",

"NETWORK"

],

"boot_type": "LEGACY"

},

"hardware_clock_timezone": "UTC",

"disable_branding": false,

"power_state": "OFF",

"power_state_mechanism": {

"guest_transition_config": {

"should_fail_on_script_failure": false,

"enable_script_exec": false

},

"mechanism": "HARD"

},

"disk_list": [

]

},

"name": "testmachine"

},

"metadata": {

"last_update_time": "2019-10-10T10:05:06Z",

"kind": "vm",

"uuid": "25e8ff83-258c-4a77-b716-b46af3777899",

"project_reference": {

"kind": "project",

"name": "projectname",

"uuid": "4e66fe37-04fb-4555-9b70-c7ab069eb267"

},

"creation_time": "2019-10-10T08:08:45Z",

"spec_version": 16,

"categories_mapping": {

"ServerType": [

"Other"

]

},

"owner_reference": {

"kind": "user",

"uuid": "00000000-0000-0000-0000-000000000000",

"name": "admin"

},

"categories": {

"ServerType": "Other"

}

}

}