7f1494a433
Recommended packages are usually useful but we normally don't need them in order to have a working system. As a result, avoid pulling them in when doing a regular package installation or a distribution update. Extra packages can be pulled in using the usual '-p' parameter or from within the elements that actually need them. The results of this change are quite significant, resulting to gains from a few dozen of MBs up to a few hundred depending on the selected elements. Change-Id: I5838829c631990c7a1f3b67548accd9a603fe20c
zypper
This element provides some customizations for zypper based distributions like SLES and openSUSE. It works in a very similar way as the yum element does for yum based distributions.
Zypper is reconfigured so that it keeps downloaded packages cached outside of the build chroot so that they can be reused by subsequent image builds. The cache increases image building speed when building multiple images, especially on slow connections. This is more effective than using an HTTP proxy for caching packages since the download servers will often redirect clients to different mirrors.