Creating immutable architecture

Organizations make a significant capital investment in hardware and develop the practice of regularly refreshing it with a new version of the application and configuration. Over time, this can lead to different servers running in varied configurations, and troubleshooting them becomes tedious. Sometimes organizations must keep running unnecessary resources when they are not needed, as they are unsure which server to shut down, which may cause application failure. The inability to replace servers makes rolling out and testing any new updates in your server fleet challenging. These problems can be solved by treating your server as a replaceable resource, which enables you to move more quickly to accommodate changes, such as upgrading applications and underlying software, resulting in less downtime and fixing application issues quickly. That is why, while designing your application, you should always think of immutable infrastructure. This means that,...