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

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".