On 10-06-2015 02:14, George Shuklin wrote: > Aw. Don't discriminate DHCP. It has many nice features (for example, if you > add > new interface to existing VM, cloud-init with static config will ignore it, > but > DHCP will works like magic). > > I don't know how it works in Gentoo, but in Debian 'allow-hotplug' for all > interfaces but eth0 allows to support most of the future interfaces. Same for > CentOS - you can add few eth scripts to network configuration and they will > works as soon as new interface appears.
I want to add to this comment. I believe this hot-plug feature for ethernet devices is essential in the cloud environment. Short time ago I needed to move port from one instance to another while keeping the internal IP address same. I achieved it by removing a port from the old instance, re-creating the port with the same ip address, and pluging it to the new instance. The downtime was minimal as the instance supported hot-plug (ubuntu 14.04) and the ip addresses were distributed using DHCP. When the interface was re-plugged, dhclient requested an ip address and the DHCP server gave the internal address of the port which I specified. So, it would be really great if you can support hot-plugging for ethernet devices and DHCP. I find them very useful and I believe many people would expect this feature from Gentoo image. Regards, -- Eren Türkay, System Administrator https://skyatlas.com/ | +90 850 885 0357 Yildiz Teknik Universitesi Davutpasa Kampusu Teknopark Bolgesi, D2 Blok No:107 Esenler, Istanbul Pk.34220
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