Hey, This is a quick tip on how you can switch from using ACLs (access control lists) to use maps for selecting backends based on a request parameter. The usefulness of using maps instead of acls is that sometimes it might be easier to update the mappings rather than the ACLs (as well as allowing us to perform mutations on the maps without needing to spawn a new process due to the possibility of using the runtime api via unix sockets). Overview Selecting a backend using ACLs Selecting a backe...
