Deploy Azure container from ACR

deploy-aci-from-acr.ps1

<#
.Synopsis
    Deploy Azure Container Instance from a specified image. 
    Requires az-cli >= 2.0.13

.Example
  .\deploy-aci-from-acr.ps1 -ContainerName myContainer -ResourceGroup myGroup -RegistryName myRegistry -ImageName myregistry.azurecr.io/myImageWithTag -Port 8983
  
.Example
  .\deploy-aci-from-acr.ps1 -ContainerName myContainer -ResourceGroup myGroup -RegistryName myRegistry -ImageName myregistry.azurecr.io/myImageWithTag -Port 8983 -CpuCores 2 -CommandLine 'myscript.sh'
#>
[CmdletBinding()]
param(
    [Parameter(Mandatory=$true)] $ContainerName,
    [Parameter(Mandatory=$true)] $ResourceGroup,
    [Parameter(Mandatory=$true)] $RegistryName,
    [Parameter(Mandatory=$true)] $ImageName,
    [Parameter(Mandatory=$false)] $Port=8983,
    [Parameter(Mandatory=$false)] $CpuCores=1,
    [Parameter(Mandatory=$false)] $MemoryInGb=1,
    [Parameter(Mandatory=$false)] $CommandLine='create-basic-cores.sh'
)

$Error.Clear()
Trap
{
    Write-Error $_.ErrorDetails.Message
    Write-Error $_.InvocationInfo.PositionMessage
    Write-Error $_.CategoryInfo.ToString()
    Write-Error $_.FullyQualifiedErrorId
    $e = $_.Exception
    while ($e.InnerException) {
      $e = $e.InnerException
      $msg += "`n" + $e.Message
    }
    break;
}

# login to ACR
# if can't locing into ACR, try restarting or even re-installing Docker engine.
az acr login -n $RegistryName
# get registry password
$acrPassword = az acr credential show -n $RegistryName --query "passwords[0].value"
if ($CommandLine){
  # create a ACI from ACR image and execute supplied script
  az container create -g $ResourceGroup -n $ContainerName --image $ImageName --cpu $CpuCores --memory $MemoryInGb --registry-password $acrPassword --ip-address public --port $Port --command-line $CommandLine
}
else{
  # create a ACI from ACR image
  az container create -g $ResourceGroup -n $ContainerName --image $ImageName --cpu $CpuCores --memory $MemoryInGb --registry-password $acrPassword --ip-address public --port $Port
}