.NET Core | IdentityServer | AWS | Serverless | Lambda

Question

Before everything: I checked familar questions like:

• access AWS API gateway using access token from identityserver

• AWS Lambda - Building serverless API using .NET Core

And this one:

• https://aws.amazon.com/blogs/developer/running-serverless-asp-net-core-web-apis-with-amazon-lambda/

But I still have question:

So. Lets say I have Simple microservices project.

I have:

• Ocelot - As Gateway
• Identity server 4 - for All authorization and Authentication logic
• Asp.Core MVC - As my web project app.
• Microsetrvice A
• Microservcie B
• RabbitMQ - Event bus
• Some databases installed on premise....

Now I want to migrate this to serverless architecture..

From what I understand, I see here 2 options:

1. First Option

   • Is Launch....EC2 (And this mean I need to pay for EC2 instance + Scale this EC2 instances) instance for deploy my Identity server.
   • Build Authorization Lambda.
   • Then Build AWS API Gateway. And All endpoint(which actually will AWS LAMBDA) which required protect by Authorization Lambda?? This options mean...all time when I call Autorize protected endpoint - I will call 2 lambda funciton ( Authorize lambda + ) - If this correct?

2. Second options, (IF I understand right) - Is Deploy Identity Server as AWS Lambda as well?

Databases and RabbitMQ I switch to Kinesis/SQS, and databases to RDS/DynamoDB