add vmssName to ComputerNamePrefix

deploy/rp-production.json

@@ -191,7 +191,7 @@
                 },
                 "virtualMachineProfile": {
                     "osProfile": {
-                        "computerNamePrefix": "rp-",
+                        "computerNamePrefix": "[concat('rp-', parameters('vmssName'), '-')]",
                         "adminUsername": "cloud-user",
                         "linuxConfiguration": {
                             "disablePasswordAuthentication": true,

pkg/deploy/generator/rp.go

@@ -591,7 +591,7 @@ rm /etc/motd.d/*
 				},
 				VirtualMachineProfile: &mgmtcompute.VirtualMachineScaleSetVMProfile{
 					OsProfile: &mgmtcompute.VirtualMachineScaleSetOSProfile{
-						ComputerNamePrefix: to.StringPtr("rp-"),
+						ComputerNamePrefix: to.StringPtr("[concat('rp-', parameters('vmssName'), '-')]"),
 						AdminUsername:      to.StringPtr("cloud-user"),
 						LinuxConfiguration: &mgmtcompute.LinuxConfiguration{
 							DisablePasswordAuthentication: to.BoolPtr(true),