Need support for managed identities for azure

Hey 👋 ,
So, is there a way to connect azure services using managed identities. Incase of google I can see support for service account https://github.com/apache/libcloud/blob/6e39117d6f686e2f49b12fc8a24168d13b6e0ada/libcloud/common/google.py#L542

Also, I see that we are accepting identity as a param, what does it signify? both secret and identity are needed ? https://github.com/apache/libcloud/blob/6e39117d6f686e2f49b12fc8a24168d13b6e0ada/libcloud/common/azure.py#L117

Please pardon me if the solution or any workarounds already exist, thank you!

まず libcloud/common/azure.py の identity パラメーター周辺を読み、libcloud/common/google.py のサービスアカウントの処理と比較します。Azure managed identities が secret なしでどのように接続すべきかを明確にし、そのうえで必要なサポートと完了条件を定義します。

索引モデルが issue の本文から書いたものです。