Where is DockerHub Counter Part for Microsoft Container Registries?

[siegfried01]

I've been studying the show notes https://gist.github.com/seesharprun/d81db9a51fa1868717dad58d0da44548 for Sidney's tutorial https://www.youtube.com/watch?v=4Kxkgftty7w on using github workflows and bicep to deploy a simple ASP.NET/Razor site to the App Service...

I see Sidney uses bicep to store his docker image in the Microsoft Container Registry (MCR)...

resource registry 'Microsoft.ContainerRegistry/registries@2021-12-01-preview' = {
  name: '<name-of-acr-resource>'
  location: location
  sku: {
    name: 'Standard'
  }
  properties: {
    adminUserEnabled: true
  }
}

How would I modify Sidney's bicep script to use DockerHub instead of MCR (because DockerHub is free). Does bicep support Docker hub? If not,

(1) what is the workaround? What would the powershell command be that I might embed in the bicep code?
(2) how about a bicep feature to support DockerHub?

Thanks

Siegfried

[alex-frankel]

To clarify, this demo appears to be using ACR not MCR. MCR is only first-party images provided by Microsoft.

The demo hosts the registry in ACR, but you could host an image wherever you want. The key thing you need is a URL to your image, wherever it is stored. That is what Sydney provided to his ACI resource. Does that help clarify?

[siegfried01]

Ah! thank you very much!

I have it working now with ACI.

However, I discovered ACI is not free like the F1 for App Service!

Since I don't have any funding yet I'd like to use App Service Web Apps with Docker Hub and I'm trying to use https://foldr.uk/azure-bicep-app-service-custom-container/ as a guide to specify DOCKER_REGISTRY_SERVER_URL, DOCKER_REGISTRY_SERVER_USERNAME & DOCKER_REGISTRY_SERVER_PASSWORD for docker hub and the app service logs are telling me that it cannot log in.

Do you know where the Microsoft documentation is for DOCKER_REGISTRY_SERVER_URL, DOCKER_REGISTRY_SERVER_USERNAME & DOCKER_REGISTRY_SERVER_PASSWORD? I'm guessing I'm specifying the wrong value for DOCKER_REGISTRY_SERVER_URL.

Do you know where the value for DOCKER_REGISTRY_SERVER_URL for DockerHub is documented? I'm using 'https://index.docker.io/v1/' and it is not working.

However, this command works:

az webapp create --name webapphelloLinuxMVCAppService --resource-group rg_helloLinuxMVCAppService --plan asp_helloLinuxMVCAppService -s siegfried01 -w topsecrete --deployment-container-image-name siegfried01/hellomvcappservice

Apparently DockerHub is the default!

[brwilkinson]

Nice, thank you for the update @siegfried01 Glad ACI is working.

For publishing to Docker, I would recommend to use Docker Desktop OR docker cli.

https://docs.docker.com/docker-hub/

If you are looking to deploy container images into App Service, you can take a look at this example.

params...
https://github.com/brwilkinson/AzureDeploymentFramework/blob/main/ADF/tenants/AOA/ACU1.T5.parameters.json#L1634

so this is using ACR, however as you can see it shares the same env vars/app config settings.

• You may just need to pass those in as paremeters instead of dynamically pulling them from ACR etc.
  https://github.com/brwilkinson/AzureDeploymentFramework/blob/main/ADF/bicep/AppServiceContainer.bicep#L166

    appConfigNew: {
      APPINSIGHTS_INSTRUMENTATIONKEY: AppInsights.properties.InstrumentationKey
      APPLICATIONINSIGHTS_CONNECTION_STRING: 'InstrumentationKey=${AppInsights.properties.InstrumentationKey}'
      DOCKER_ENABLE_CI: 'true'
      DOCKER_REGISTRY_SERVER_PASSWORD: listCredentials(ACR[index].id, ACR[index].apiVersion).passwords[0].value
      DOCKER_REGISTRY_SERVER_URL: ACR[index].properties.loginServer
      DOCKER_REGISTRY_SERVER_USERNAME: ACR[index].name
    }

https://github.com/brwilkinson/AzureDeploymentFramework/blob/main/ADF/bicep/x.appServiceSettings.bicep

[siegfried01]

Yahoo! That worked! Thank you very much...
However, there is one additional mystery I had to solve! I had to redundantly add my DockerHub account name to the image name (separated with a slash):

      linuxFxVersion: 'DOCKER|siegfried01/demovisualstudiocicdforblazorserver:latest'

And now it works! Yipee!

https://stackoverflow.com/questions/72330705/how-to-deploy-to-azure-app-service-website-from-docker-hub-using-bicep

[siegfried01]

Yahoo! That worked! Thank you very much...
However, there is one additional mystery I had to solve! I had to redundantly add my DockerHub account name to the image name (separated with a slash):

      linuxFxVersion: 'DOCKER|siegfried01/demovisualstudiocicdforblazorserver:latest'

And now it works! Yipee!

https://stackoverflow.com/questions/72330705/how-to-deploy-to-azure-app-service-website-from-docker-hub-using-bicep

[brwilkinson]

Thank you for the update @siegfried01 appears you are now unblocked on your few items, so I will make as answered.