This article provides one possible approach (and includes links to an example implementation): https://blog.jakubholy.net/2013/09/05/blue-green-deployment-witho

This article provides one possible approach (and includes links to an example implementation): https://blog.jakubholy.net/2013/09/05/blue-green-deployment-without-breaking-sessions-with-haproxy-and-jetty/ https://blog.jakubholy.net/2013/09/05/blue-green-deployment-...