On 02/10/14 15:46, Robert Jennings wrote: > Why not change the image-stream to 'daily' from 'release' rather than > altering whether or not we update packages on an instance? > > The default environment configuration specifies that the image stream > is 'releases' rather than 'daily'. This means that the delta for > updates will be large and updating the instance takes more time. I'd > suggest changing that default and leave the automatic update. > > If you keep the 'release' stream as the default and then make the > change to not perform updates then there are so many more packages > that are old and crufty (and possibly insecure).
The 'release' image stream is iirc rebuilt at least fortnightly to include latest updates, to avoid the ever-increasing-delta that you describe. It's also iirc rebuilt any time there's a big security issue. Jorge pointed to http://blog.utlemming.org/2014/08/archive-triggered-cloud-image-builds.html for daily builds but I believe a similar process is in place for release images. Mark
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