Azure Bicep template deployment failure with error: "The value of parameter linuxConfiguration.ssh.publicKeys.path is invalid.\" - azure-resource-manager

Question

I created a bicep templated to deploy on Azure (using bash) a linux vm with the associated resources (nic, vnet, subnet, publicIP). Part of the deployment fails; where all the associated resources are deployed but the vm itself fails to deploy.
The error is as follows:
{"status":"Failed","error":{"code":"DeploymentFailed","message":"At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.","details":[{"code":"BadRequest","message":"{\r\n "error": {\r\n "code": "InvalidParameter",\r\n "message": "Destination path for SSH public keys is currently limited to its default value /home/user/.ssh/authorized_keys due to a known issue in Linux provisioning agent.",\r\n "target": "linuxConfiguration.ssh.publicKeys.path"\r\n }\r\n}"}]}}
The bicep template provided by microsoft uses the path: '/home/${adminUsername}/.ssh/authorized_keys'
I can't seem to figure out a way for it to deploy. Any assistance would greatly appreciated.
Here is the bicep file that causes the error:
#description('Name of the VM')
param vmName string = 'stagingLinuxVM'
#description('location for all resources')
param location string = resourceGroup().location
#description('vm sizes allowed RAM & temp storage in GiB per tier (respectively): 0.5/4; 1/4; 2/4; 4/8; 8/16')
#allowed([
'Standard_B1s'
'Standard_B1ms'
'Standard_B2s'
'Standard_B2ms'
])
param vmSize string = 'Standard_B1s'
#description('Username for the VM')
param adminUsername string
#description('SSH Key for the Virtual Machine')
#secure()
param adminPasswordKey string
#description('name of VNET')
param virtualNetworkName string = 'vnet'
#description('name of the subnet in the virtual network')
param subnetName string = 'Subnet'
param dnsLabelPrefix string = toLower('${vmName}-${uniqueString(resourceGroup().id)}')
var osDiskType = 'Standard_LRS'
var networkInterfaceName = '${vmName}nic'
var addressPrefix = '10.1.0.0/16'
var publicIPAddressName = '${vmName}PublicIP'
var subnetAddressPrefix = '10.1.0.0/24'
var linuxConfiguration = {
disablePasswordAuthentication: true
provisionVMAgent: true
ssh: {
publicKeys: [
{
path: '/home/${adminUsername}/.ssh/authorized_keys'
keyData: adminPasswordKey
}
]
}
}
resource nic 'Microsoft.Network/networkInterfaces#2021-08-01' = {
name: networkInterfaceName
location: location
properties: {
ipConfigurations: [
{
name: 'ipconfig1'
properties: {
subnet: {
id: subnet.id
}
privateIPAllocationMethod: 'Dynamic'
publicIPAddress: {
id: publicIP.id
}
}
}
]
}
}
resource vnet 'Microsoft.Network/virtualNetworks#2021-08-01' = {
name: virtualNetworkName
location: location
properties: {
addressSpace: {
addressPrefixes: [
addressPrefix
]
}
}
}
resource subnet 'Microsoft.Network/virtualNetworks/subnets#2021-08-01' = {
parent: vnet
name: subnetName
properties: {
addressPrefix: subnetAddressPrefix
privateEndpointNetworkPolicies: 'Enabled'
privateLinkServiceNetworkPolicies: 'Enabled'
}
}
resource publicIP 'Microsoft.Network/publicIPAddresses#2021-08-01' = {
name: publicIPAddressName
location: location
sku: {
name: 'Basic'
}
properties: {
publicIPAllocationMethod: 'Dynamic'
publicIPAddressVersion: 'IPv4'
dnsSettings: {
domainNameLabel: dnsLabelPrefix
}
idleTimeoutInMinutes: 4
}
}
resource vm 'Microsoft.Compute/virtualMachines#2021-11-01' = {
name: vmName
location: location
properties: {
hardwareProfile: {
vmSize: vmSize
}
osProfile: {
adminPassword: adminPasswordKey
adminUsername: adminUsername
computerName: vmName
linuxConfiguration: linuxConfiguration
}
storageProfile: {
imageReference: {
offer: 'UbuntuServer'
publisher: 'Canonical'
sku: '18.04-LTS'
version: 'latest'
}
osDisk: {
createOption: 'FromImage'
deleteOption: 'Delete'
diskSizeGB: 32
osType: 'Linux'
managedDisk: {
storageAccountType: osDiskType
}
}
}
networkProfile: {
networkInterfaces: [
{
id: nic.id
}
]
}
}
}
output adminUsername string = adminUsername
output hostname string = publicIP.properties.dnsSettings.fqdn
output sshComand string = 'ssh ${adminUsername}#${publicIP.properties.dnsSettings.fqdn}'