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Creating Azure Container Registry

Azure Container Registry (ACR) is a fully managed private Docker registry provided by Azure Cloud. In this section, we will create a new instance of ACR using the Azure CLI. You will learn how to achieve similar build automation as provided by Docker Hub but with the possibility of building Windows images and using a private registry.

You can find detailed installation instructions for the Azure CLI in Chapter 2 , Managing State in Containers .

To create an Azure Container Registry instance, follow these steps:

Ensure that you are logged in to the Azure CLI by using the az login command in PowerShell. Proceed by creating a dedicated resource group for your ACR instance. In this example, we will use the acr-resource-group resource group and westeurope as the Azure location:

az group create `
 --name acr-resource-group `
 --location westeurope

You can also use the PowerShell script available in this book's GitHub repository: https://github.com/PacktPublishing/Hands-On-Kubernetes-on-Windows/blob/master/Chapter03/03_CreateAzureContainerRegistry.ps1. Remember to provide a globally unique ACR name in order to be able to create the instance.

Next, create a basic-tier ACR instance with a globally unique name (for demonstration purposes, we have provided handsonkubernetesonwinregistry, but you have to provide your own unique name as it will be a part of the registry's DNS name):

az acr create `
 --resource-group acr-resource-group `
 --name handsonkubernetesonwinregistry `
 --sku Basic

If you are interested in other service tiers of Azure Container Registry, please refer to the official documentation: https://docs.microsoft.com/en-us/azure/container-registry/container-registry-skus.

You will be provided with detailed information regarding your newly created registry:

{
  "adminUserEnabled": false,
  "creationDate": "2019-08-18T21:20:53.081364+00:00",
  "id": "/subscriptions/cc9a8166-829e-401e-a004-76d1e3733b8e/resourceGroups/acr-resource-group/providers/Microsoft.ContainerRegistry/registries/handsonkubernetesonwinregistry",
  "location": "westeurope",
  "loginServer": "handsonkubernetesonwinregistry.azurecr.io",
  "name": "handsonkubernetesonwinregistry",
  "networkRuleSet": null,
  "provisioningState": "Succeeded",
  "resourceGroup": "acr-resource-group",
  "sku": {
    "name": "Basic",
    "tier": "Basic"
  },
  "status": null,
  "storageAccount": null,
  "tags": {},
  "type": "Microsoft.ContainerRegistry/registries"
}

The most important information is "loginServer": "handsonkubernetesonwinregistry.azurecr.io", which will be used for pushing and pulling Docker images.

Finally, the last step is to log in to the registry so that you can use the registry in the Docker CLI:

az acr login `
 --name handsonkubernetesonwinregistry

With ACR set up, we are ready to build a Docker image using ACR in the cloud environment.