Re: [libvirt] [PATCH] Refactor the libvirt RPM daemon pieces

On Fri, Mar 30, 2012 at 03:00:03PM -0400, Laine Stump wrote: > On 03/30/2012 12:53 PM, Daniel P. Berrange wrote: >> From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; >> >> There are a number of flaws with our packaging of the libvirtd >> daemon: >> >> - Installing 'libvirt' does not install 'qemu-kvm' or 'xen' >> etc which are required to actually run the hypervisor in >> question >> - Installing 'libvirt' pulls in the default configuration >> files which may not be wanted & cause problems if installed >> inside a guest >> - It is not possible to explicitly required all the peices >> required to manage a specific hypervisor >> >> This change takes the 'libvirt' RPM and and changes it thus >> >> - libvirt: just a virtual package with dep on libvirt-daemon, >> libvirt-daemon-config-network & libvirt-daemon-config-nwfilter >> - libvirt-daemon: the libvirt daemon and related pieces >> - libvirt-daemon-config-network: the default network config >> - libvirt-daemon-config-nwfilter: the network filter configs >> - libvirt-docs: the website HTML >> >> We then introduce some more virtual (empty) packages >> >> - libvirt-daemon-qemu: Deps on libvirt-daemon & 'qemu' >> - libvirt-daemon-kvm: Deps on libvirt-daemon & 'qemu-kvm' >> - libvirt-daemon-lxc: Deps on libvirt-daemon >> - libvirt-daemon-uml: Deps on libvirt-daemon >> - libvirt-daemon-xen: Deps on libvirt-daemon & 'xen' >> >> - libvirt-qemu: Deps on libvirt-daemon-qemu & libvirt-daemon-config-{network,nwfilter} >> - libvirt-kvm: Deps on libvirt-daemon-kvm & libvirt-daemon-config-{network,nwfilter} >> - libvirt-lxc: Deps on libvirt-daemon-lxc & libvirt-daemon-config-{network,nwfilter} >> - libvirt-uml: Deps on libvirt-daemon-uml & libvirt-daemon-config-{network,nwfilter} >> - libvirt-xen: Deps on libvirt-daemon-xen & libvirt-daemon-config-network >> >> My intent in the future is to turn on the driver modules by >> default, at which time 'libvirt-daemon' will cease to include >> any specific drivers, instead we'll get libvirt-daemon-driver-XXXX >> packages for each driver. The libvirt-daemon-XXX packages will >> then pull in each driver that they require. >> >> It is recommended that applications required a locally installed >> libvirtd daemon, use either 'Requires: libvirt-daemon-XXXX' or >> 'Requires: libvirt-XXX' and *not* "Requires: libvirt-daemon" >> or 'Requires: libvirt' > I did a successful "make rpm" on Fedora 16, which resulted in 21 rpm's > (including the source rpm). > > When I tried to update using rpm -U, I was told that I didn't have the > required "qemu" and "xen" packages installed (not surprising, since I > never use them). Installing qemu cost 52MB on my disk, and xen another > 27. This isn't a bother to me, but I suppose it could be for someone who > was trying to make images as small as possible. On the other hand, that > person will just need to start using the "libvirt-kvm" package instead > of "libvirt". I assume that is because you did 'rpm -Uvh *.rpm', which means it would have included libvirt-qemu and libvirt-xen which in turn dep on 'qemu' and 'xen' respectively. If you had merely asked to install 'libvirt', it would not have required libvirt-qemu or libvirt-xen.