Re: [PATCH] spec: Avoid RPM verification errors on nwfilter XMLs

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On Thu, Apr 13, 2017 at 02:23:08PM +0200, Jiri Denemark wrote:
> /etc/libvirt/nwfilter/*.xml files are installed with no UUID, which
> means libvirtd will automatically alter all of them once it starts. Thus
> RPM verification will always fail on them. Let's use a trick similar to
> the default network XML and store nwfilter XMLs in /usr/share. They will
> be copied into /etc in %post. Additionally the /etc files are marked as
> %ghost so that they are uninstalled if the RPM package is removed.

This feels wrong to me - we don't remove any other XML files in /etc/libvirt
when we uninstall the RPMs. Should we not instead mark it is %config so that
RPM knows the files are liable to be changed by local admin and thus not
report verification errors.

> 
> Note that the %post script overwrites existing files with new ones on
> upgrade, which is what has always been happening.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1431581
> https://bugzilla.redhat.com/show_bug.cgi?id=1378774
> 
> Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
> ---
>  libvirt.spec.in | 22 +++++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/libvirt.spec.in b/libvirt.spec.in
> index 1d249851a..78c3c28e1 100644
> --- a/libvirt.spec.in
> +++ b/libvirt.spec.in
> @@ -1360,6 +1360,13 @@ cp $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/default.xml \
>     $RPM_BUILD_ROOT%{_datadir}/libvirt/networks/default.xml
>  rm -f $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/default.xml
>  rm -f $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/autostart/default.xml
> +
> +# nwfilter files are installed in /usr/share/libvirt and copied to /etc in %post
> +# to avoid verification errors on changed files in /etc
> +install -d -m 0755 $RPM_BUILD_ROOT%{_datadir}/libvirt/nwfilter/
> +cp -a $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/nwfilter/*.xml \
> +    $RPM_BUILD_ROOT%{_datadir}/libvirt/nwfilter/
> +
>  # Strip auto-generated UUID - we need it generated per-install
>  sed -i -e "/<uuid>/d" $RPM_BUILD_ROOT%{_datadir}/libvirt/networks/default.xml
>  %if ! %{with_qemu}
> @@ -1586,6 +1593,17 @@ if test $1 -eq 1 && test ! -f %{_sysconfdir}/libvirt/qemu/networks/default.xml ;
>  
>  fi
>  
> +
> +%post daemon-config-nwfilter
> +cp %{_datadir}/libvirt/nwfilter/*.xml %{_sysconfdir}/libvirt/nwfilter/
> +# Make sure libvirt picks up the new nwfilter defininitons
> +%if %{with_systemd}
> +    /bin/systemctl try-restart libvirtd.service >/dev/null 2>&1 ||:
> +%else
> +    /sbin/service libvirtd condrestart > /dev/null 2>&1 || :
> +%endif
> +
> +
>  %if %{with_systemd}
>  %triggerun -- libvirt < 0.9.4
>  %{_bindir}/systemd-sysv-convert --save libvirtd >/dev/null 2>&1 ||:
> @@ -1767,7 +1785,9 @@ exit 0
>  %{_datadir}/libvirt/networks/default.xml
>  
>  %files daemon-config-nwfilter
> -%{_sysconfdir}/libvirt/nwfilter/*.xml
> +%dir %{_datadir}/libvirt/nwfilter/
> +%{_datadir}/libvirt/nwfilter/*.xml
> +%ghost %{_sysconfdir}/libvirt/nwfilter/*.xml
>  
>  %files daemon-driver-interface
>  %{_libdir}/%{name}/connection-driver/libvirt_driver_interface.so
> -- 
> 2.12.2
> 
> --
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> libvir-list@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/libvir-list

Regards,
Daniel
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