Deploying Web App for containers using ARM templates

Question

I have been trying to automate deployment of my resources to resource group on Azure. Right now I am using ARM templates and so far I was able to create App Insights and App Service Plan using a template. This is how it looks like:

{
   "apiVersion": "2015-05-01",
   "name": "[variables('servicePlan')]",
   "kind": "linux",
   "type": "Microsoft.Web/serverfarms",
   "location": "[resourceGroup().location]",
   "tags": {
           "displayName": "BTC Push Notification Settings HostingPlan"
    },
    "sku": {
           "name": "[variables('skuNamePlan')]",
           "capacity": "[variables('skuSizePlan')]"
    },
    "properties": {
            "name": "[variables('servicePlan')]"
    }
},
{
    "apiVersion": "2015-05-01",
    "name": "[variables('appInsights')]",
    "type": "Microsoft.Insights/components",
    "location": "southcentralus",
    "tags": {
            "[concat('hidden-link:', resourceGroup().id, '/providers/Microsoft.Web/sites/', variables('appInsights'))]": "Resource",
            "displayName": "BTC Push Notification Settings App Insights"
     },
     "properties": {
            "applicationId": "[variables('appInsights')]"
        }
 }

I am having hard time creating Web App for Containers and pointing it to my docker image using ARM template. I have done it manually and it worked, likewise I did it through azure-cli like this az webapp create --resource-group ExampleGroupAlpina --plan myAppServicePlan --name DockerContainer --deployment-container-image-name this-is-my-image/sample-docker and this worked as well. I would appreciate if anyone could suggest creating this Web App for Containers using ARM Template.

Answer 1

The following ARM template worked for me.

• It allows to specify the authentication details of a private Azure Container Registry.
• Also make sure the docker image name follows this pattern: _MY_REGISTRY_USERNAME_-on.azurecr.io/_MY_NAMESPACE_/_MY_DOCKER_IMAGE_NAME_:latest

I run the az command like this:

az group deployment create \
  --name "deployAzureApp" \
  --resource-group <MY_RESOURCE_GROUP_NAME> \
  --template-file <MY_ARM_JSON_TEMPLATE>.json  --verbose --debug

Here's the Azure Resource Manager (ARM) JSON template:

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "appName": {
      "type": "String",
      "defaultValue": "_MY_APP_NAME_"
    },
    "dockerImageName": {
      "type": "String",
      "defaultValue": "_MY_REGISTRY_USERNAME_-on.azurecr.io/_MY_NAMESPACE_/_MY_DOCKER_IMAGE_NAME_:latest"
    },
    "dockerRegistryUrl": {
      "type": "String",
      "defaultValue": "https://_MY_REGISTRY_USERNAME_-on.azurecr.io"
    },
    "dockerRegistryUsername": {
      "type": "String",
      "defaultValue": "_MY_REGISTRY_USERNAME_"
    },
    "dockerRegistryPassword": {
      "type": "String",
      "defaultValue": "_MY_REGISTRY_PSW_"
    },
    "servicePlanName": {
      "type": "String",
      "defaultValue": "_MY_SERVICE_PLAN_NAME_"
    },
    "appLocation": {
      "type": "String",
      "defaultValue": "_MY_REGION_"
    }
  },
  "resources": [
    {
      "type": "Microsoft.Web/sites",
      "apiVersion": "2016-08-01",
      "name": "[parameters('appName')]",
      "kind": "app,linux,container",
      "location": "[parameters('appLocation')]",
      "properties": {
        "name": "[parameters('appName')]",
        "siteConfig": {
          "linuxFxVersion": "[concat('DOCKER|', parameters('dockerImageName'))]",
          "alwaysOn": true,
          "appSettings": [
            {
              "name": "WEBSITES_ENABLE_APP_SERVICE_STORAGE",
              "value": "false"
            },
            {
              "name": "DOCKER_REGISTRY_SERVER_URL",
              "value": "[parameters('dockerRegistryUrl')]"
            },
            {
              "name": "DOCKER_REGISTRY_SERVER_USERNAME",
              "value": "[parameters('dockerRegistryUsername')]"
            },
            {
              "name": "DOCKER_REGISTRY_SERVER_PASSWORD",
              "value": "[parameters('dockerRegistryPassword')]"
            }
          ]
        },
        "serverFarmId": "[resourceId('Microsoft.Web/serverfarms', parameters('servicePlanName'))]"
      }
    }
  ]
}