Managed identity is one of unique functionalities in Azure and it allows us to authenticate callers and configure RBAC against called resources without storing caller credentials. We can see several examples to use managed identity in Azure documents, but the following questions might come to your mind.

- How do we configure authentication among Azure App Services/Functions with managed identity?
- Cannot we achieve such configuration? If we can, how do we implement App Service/Functions in Java to achieve this concept?

In this talk, I elaborate how to use managed identity for authentication among App Service/Functions and applicable use cases using Java sample codes.