Feature Request: Azure Shared Image Gallery - Image definition created as part of builder

[Marcus-James-Adams]

Following on from #7809

Packer should be self-contained and be able to do everything required within a builder without outside assistance.

currently, we have to do the following before running packer

Use az cli or PowerShell to create a shared image definition, e.g. for a customised Ubuntu 18.04-LTS image: az sig image-definition create --resource-group --gallery-name <my_shared_image_gallery> --gallery-image-definition --publisher --offer UbuntuServer --sku 18.04-LTS --os-type linux

It would be good if packer could create the definition automatically as part of the builder process.

[ghost]

This issue has been automatically migrated to hashicorp/packer-plugin-azure#35 because it looks like an issue with that plugin. If you believe this is not an issue with the plugin, please reply to hashicorp/packer-plugin-azure#35.