Provide a virtual network to an internal Azure Container Apps environment

az cloud set -n AzureChinaCloud
az login
# az cloud set -n AzureCloud   //means return to Public Azure.

Connect-AzAccount -Environment AzureChinaCloud

az upgrade

Install-Module -Name Az -Scope CurrentUser -Repository PSGallery -Force

Ignore any warnings about modules currently in use.

az extension add --name containerapp --upgrade

az extension add --name containerapp --upgrade --allow-preview true

Install-Module -Name Az.App

Make sure to update the Az.App module to the latest version.

Update-Module -Name Az.App

az provider register --namespace Microsoft.App

az provider register --namespace Microsoft.OperationalInsights

Register-AzResourceProvider -ProviderNamespace Microsoft.App

Register-AzResourceProvider -ProviderNamespace Microsoft.OperationalInsights

RESOURCE_GROUP="<RESOURCE_GROUP>"
LOCATION="<LOCATION>"
CONTAINERAPPS_ENVIRONMENT="<CONTAINERAPPS_ENVIRONMENT>"

$ResourceGroupName = '<RESOURCE_GROUP>'
$Location = '<LOCATION>'
$ContainerAppsEnvironment = '<CONTAINERAPPS_ENVIRONMENT>'

az group create \
  --name $RESOURCE_GROUP \
  --location "$LOCATION"

New-AzResourceGroup -Location $Location -Name $ResourceGroupName

az provider register --namespace Microsoft.ContainerService

Register-AzResourceProvider -ProviderNamespace Microsoft.ContainerService

VNET_NAME="my-custom-vnet"

$VnetName = 'my-custom-vnet'

az network vnet create \
  --resource-group $RESOURCE_GROUP \
  --name $VNET_NAME \
  --location $LOCATION \
  --address-prefix 10.0.0.0/16

az network vnet subnet create \
  --resource-group $RESOURCE_GROUP \
  --vnet-name $VNET_NAME \
  --name infrastructure-subnet \
  --address-prefixes 10.0.0.0/23

$SubnetArgs = @{
    Name = 'infrastructure-subnet'
    AddressPrefix = '10.0.0.0/23'
}
$subnet = New-AzVirtualNetworkSubnetConfig @SubnetArgs

$VnetArgs = @{
    Name = $VnetName
    Location = $Location
    ResourceGroupName = $ResourceGroupName
    AddressPrefix = '10.0.0.0/16'
    Subnet = $subnet
}
$vnet = New-AzVirtualNetwork @VnetArgs

az network vnet subnet update \
  --resource-group $RESOURCE_GROUP \
  --vnet-name $VNET_NAME \
  --name infrastructure-subnet \
  --delegations Microsoft.App/environments

$delegation = New-AzDelegation -Name 'containerApp' -ServiceName 'Microsoft.App/environments'
$vnet = Set-AzVirtualNetworkSubnetConfig -Name $SubnetArgs.Name -VirtualNetwork $vnet -AddressPrefix $SubnetArgs.AddressPrefix -Delegation $delegation
$vnet | Set-AzVirtualNetwork

INFRASTRUCTURE_SUBNET=`az network vnet subnet show --resource-group ${RESOURCE_GROUP} --vnet-name $VNET_NAME --name infrastructure-subnet --query "id" -o tsv | tr -d '[:space:]'`

$InfrastructureSubnet = (Get-AzVirtualNetworkSubnetConfig -Name $SubnetArgs.Name -VirtualNetwork $vnet).Id

az containerapp env create \
  --name $CONTAINERAPPS_ENVIRONMENT \
  --resource-group $RESOURCE_GROUP \
  --location "$LOCATION" \
  --infrastructure-subnet-resource-id $INFRASTRUCTURE_SUBNET \
  --internal-only

The following table describes the parameters used in for containerapp env create.

With your environment created using your custom virtual network, you can deploy container apps into the environment using the az containerapp create command.

A Log Analytics workspace is required for the Container Apps environment. The following commands create a Log Analytics workspace and save the workspace ID and primary shared key to environment variables.

$WorkspaceArgs = @{
    Name = 'myworkspace'
    ResourceGroupName = $ResourceGroupName
    Location = $Location
    PublicNetworkAccessForIngestion = 'Enabled'
    PublicNetworkAccessForQuery = 'Enabled'
}
New-AzOperationalInsightsWorkspace @WorkspaceArgs
$WorkspaceId = (Get-AzOperationalInsightsWorkspace -ResourceGroupName $ResourceGroupName -Name $WorkspaceArgs.Name).CustomerId
$WorkspaceSharedKey = (Get-AzOperationalInsightsWorkspaceSharedKey -ResourceGroupName $ResourceGroupName -Name $WorkspaceArgs.Name).PrimarySharedKey

To create the environment, run the following command:

$EnvArgs = @{
    EnvName = $ContainerAppsEnvironment
    ResourceGroupName = $ResourceGroupName
    Location = $Location
    AppLogConfigurationDestination = 'log-analytics'
    LogAnalyticConfigurationCustomerId = $WorkspaceId
    LogAnalyticConfigurationSharedKey = $WorkspaceSharedKey
    VnetConfigurationInfrastructureSubnetId = $InfrastructureSubnet
    VnetConfigurationInternal = $true
}
New-AzContainerAppManagedEnv @EnvArgs

The following table describes the parameters used in for New-AzContainerAppManagedEnv.

With your environment created using your custom virtual network, you can deploy container apps into the environment.

ENVIRONMENT_DEFAULT_DOMAIN=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query properties.defaultDomain --out json | tr -d '"'`

ENVIRONMENT_STATIC_IP=`az containerapp env show --name ${CONTAINERAPPS_ENVIRONMENT} --resource-group ${RESOURCE_GROUP} --query properties.staticIp --out json | tr -d '"'`

VNET_ID=`az network vnet show --resource-group ${RESOURCE_GROUP} --name ${VNET_NAME} --query id --out json | tr -d '"'`

$EnvironmentDefaultDomain = (Get-AzContainerAppManagedEnv -EnvName $ContainerAppsEnvironment -ResourceGroupName $ResourceGroupName).DefaultDomain

$EnvironmentStaticIp = (Get-AzContainerAppManagedEnv -EnvName $ContainerAppsEnvironment -ResourceGroupName $ResourceGroupName).StaticIp

az network private-dns zone create \
  --resource-group $RESOURCE_GROUP \
  --name $ENVIRONMENT_DEFAULT_DOMAIN

az network private-dns link vnet create \
  --resource-group $RESOURCE_GROUP \
  --name $VNET_NAME \
  --virtual-network $VNET_ID \
  --zone-name $ENVIRONMENT_DEFAULT_DOMAIN -e true

az network private-dns record-set a add-record \
  --resource-group $RESOURCE_GROUP \
  --record-set-name "*" \
  --ipv4-address $ENVIRONMENT_STATIC_IP \
  --zone-name $ENVIRONMENT_DEFAULT_DOMAIN

New-AzPrivateDnsZone -ResourceGroupName $ResourceGroupName -Name $EnvironmentDefaultDomain

New-AzPrivateDnsVirtualNetworkLink -ResourceGroupName $ResourceGroupName -Name $VnetName -VirtualNetwork $Vnet -ZoneName $EnvironmentDefaultDomain -EnableRegistration

$DnsRecords = @()
$DnsRecords += New-AzPrivateDnsRecordConfig -Ipv4Address $EnvironmentStaticIp

$DnsRecordArgs = @{
    ResourceGroupName = $ResourceGroupName
    ZoneName = $EnvironmentDefaultDomain
    Name = '*'
    RecordType = 'A'
    Ttl = 3600
    PrivateDnsRecords = $DnsRecords
}
New-AzPrivateDnsRecordSet @DnsRecordArgs

• The platform-reserved-cidr and docker-bridge-cidr address ranges can't conflict with each other, or with the ranges of either provided subnet. Further, make sure these ranges don't conflict with any other address range in the VNET.

• If these properties aren't provided, the CLI autogenerates the range values based on the address range of the VNET to avoid range conflicts.

• The VnetConfigurationPlatformReservedCidr and VnetConfigurationDockerBridgeCidr address ranges can't conflict with each other, or with the ranges of either provided subnet. Further, make sure these ranges don't conflict with any other address range in the VNET.

• If these properties aren't provided, the range values are autogenerated based on the address range of the VNET to avoid range conflicts.

az group delete --name $RESOURCE_GROUP

Remove-AzResourceGroup -Name $ResourceGroupName -Force