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ASP.NET Core Data Protection

Continuing from my last post on Configuring ASP.NET Core behind a Load Balancer, the next hurdle you may run into is with ASP.NET Core Data Protection. Specifically I was using Cookie Authentication (without Identity). In this scenario, ASP.NET Core’s Data Protection must share the same key ring and app identifier for each instance of your application.  This means if you are load balanced across multiple containers or even machines, you must configure ASP.NET Core’s Data Protection system. If you do not, the process that generates your authentication cookie (or bearer token) will be the only process that will be able… Read More »ASP.NET Core Data Protection

Configuring ASP.NET Core Behind a Load Balancer

If you deploy your ASP.NET Core web application to the cloud you are likely putting it behind a load balancer.  Here’s some quick info that might provide useful for how to Configure ASP.NET Core behind a load balancer. Forwarded Headers There are generally 3 headers which are added to the request header to tell your application about how it was forwarded from the load balancer. X-Forwarded-For: List of comma space list of IP addresses of the original client and proxies that received the request. X-Forwarded-Proto: The scheme from the original client and proxies. X-Forwarded-Host: Original host header. SSL Termination If… Read More »Configuring ASP.NET Core Behind a Load Balancer

Zero Downtime Deployments with Octopus Deploy

If you’re using Octopus Deploy and AWS with their Elastic Load Balancer (v2) in front of EC2 instances that either self host or sit behind IIS, you can setup zero downtime deployments fairly easily. Although this blog post will focus on AWS ELB, the same strategy can be applied to Azure. Rolling Deployments First is to configure your process that deploys your web application within Octopus.  Octopus has the ability to perform the rolling deployments pattern: Rolling deployments are a pattern whereby, instead of deploying a package to all servers at once, we slowly roll out the release by deploying… Read More »Zero Downtime Deployments with Octopus Deploy