azureazure-container-appsazure-custom-domain

How to add custom domain to multiple internal container apps

The scenario is that I want to set up multiple internal container apps under the same container apps environment. All these apps are in the same VNET.

I understand that to access them, I need to create a private DNS zone to map domains like:

https://test1.apple-1234.northeurope.azurecontainerapps.io/
https://test2.bigapple-5678.northeurope.azurecontainerapps.io/

...to their internal IP addresses.

My question is: how can I set up internal domains for the above apps? For example, I would like to access these two apps using:

http://test1.xyz.abc
http://test2.xyz.abc

P.S. These domains are only used internally and will only be accessed within the VNET.

Solution

  • How to add custom domain to multiple internal container apps

    There is no validation required for your custom domain when adding or attaching a domain in Container Apps. Follow the MS Doc for more details

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    1. Add the custom domain to your container app using the full domain instead of xyz.abc, as shown below
        EX: my app name is  theja-container-app
    Custom domain is : theja-container-app.xyz.abc

    Custom domain configuration

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    Note: Make sure to restart the container app after adding the custom domain.

    1. Check the settings below in your application. If they are not as shown, update the settings.

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    1. Create a private DNZ zone with virtual link.

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    1. Create an A record for your application with the static IP of the container app environment in the private DNS zone.

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    Container apps environment static IP

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    1. Add the local host entry on your VM
     10.0.0.159     demo-container-app.mangosea-d4264213.eastus.azurecontainerapps.io
 10.0.0.159     theja-container-app.mangosea-d4264213.eastus.azurecontainerapps.io

    Local host entry

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    Result from my VM which has same Vnet as container app

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