Azure App Service apps running on Linux support mapping an Azure Storage container (backed by Azure Blob or Azure Files) to a path accessible by your application ( learn more ).
Currently, both options support read / write scenarios. Due to limitations in the drivers used to provide the Azure Blob mounting functionality, mappings backed by Azure Blob will become read-only on February 2nd 2020. Azure Files backed configurations will not be affected by this change.
If your app needs to continue to support read / write scenarios with mounted storage, we recommend using Azure Files.
If you want to opt-in the read only behavior for read only Azure Blob mounts, you can add an app setting:
WEBSITE_DISABLE_BYOS_BLOB_READ_WRITE = <mount-name-01>,<mount-name-02>,...,<mount-name-N>The value for this app setting should be a comma delimited list of mount names you want to make read only.
If you have 2 containers mounted to your app and you only want to make the media container read-only. Add an app setting with the following Key / Value:
WEBSITE_DISABLE_BYOS_BLOB_READ_WRITE = mediaIf you want to make both mounts read only:
WEBSITE_DISABLE_BYOS_BLOB_READ_WRITE = media,logs