That's right! Enabling the Admin User option in the Access Keys section of the Azure Container Registry (ACR) settings is required if you want to use the ACR with Azure Spring Apps Custom Container feature.
To enable the Admin User option, follow these steps:
Go to the Azure portal and navigate to your ACR instance
Click on the "Access keys" option under the "Settings" section in the left-hand menu.
Under the "Admin user" section, click on the "Enable" button.
Once the Admin User option is enabled, you can use the ACR with Azure Spring Apps Custom Container feature.
Note that enabling the Admin User option is not recommended for production environments, as it can pose a security risk. It is recommended to use service principles or managed identities for authentication instead.
Please accept it as the answer, so that the relevancy of this post will improve when anyone in the community searches for a similar query.