Persisting IPs With AWS ENIs in RHEL 7.4

I spent some time on this in the week and there was some wrestle involved in setting up an Elastic Network Interface to be used with an autohealing EC2 instance, I thought it would be worth sharing the pattern if someone has to design a service in a similar fashion. If designed correctly, a new instance will reassociate to the address in the event of an instance termination and the consuming entities can keep querying the newly instantiated service on the instance. [Read More]