[libvirt] [PATCH v3 22/48] network: introduce virtnetworkd daemon

[Daniel P. Berrangé]

The virtnetworkd daemon will be responsible for providing the network API
driver functionality. The network driver is still loaded by the main
libvirtd daemon at this stage, so virtnetworkd must not be running at
the same time.

Reviewed-by: Andrea Bolognani <abologna at redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
 .gitignore                          |  4 ++
 libvirt.spec.in                     |  8 ++++
 src/network/Makefile.inc.am         | 61 +++++++++++++++++++++++++++++
 src/network/virtnetworkd.service.in | 25 ++++++++++++
 4 files changed, 98 insertions(+)
 create mode 100644 src/network/virtnetworkd.service.in

diff --git a/.gitignore b/.gitignore
index 162b017c4a..4101bb4564 100644
--- a/.gitignore
+++ b/.gitignore
@@ -154,6 +154,9 @@
 /src/lxc/lxc_monitor_protocol.h
 /src/lxc/lxc_protocol.[ch]
 /src/lxc/test_libvirtd_lxc.aug
+/src/network/test_virtnetworkd.aug
+/src/network/virtnetworkd.aug
+/src/network/virtnetworkd.conf
 /src/qemu/test_libvirtd_qemu.aug
 /src/remote/*_client_bodies.h
 /src/remote/*_protocol.[ch]
@@ -174,6 +177,7 @@
 /src/virt-aa-helper
 /src/virtlockd
 /src/virtlogd
+/src/virtnetworkd
 /src/virtproxyd
 /src/virtsecretd
 /src/virt-guest-shutdown.target
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 7eeb2b4f07..52a671d908 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1612,6 +1612,14 @@ exit 0
 %{_libdir}/%{name}/connection-driver/libvirt_driver_interface.so
 
 %files daemon-driver-network
+%config(noreplace) %{_sysconfdir}/libvirt/virtnetworkd.conf
+%{_datadir}/augeas/lenses/virtnetworkd.aug
+%{_datadir}/augeas/lenses/tests/test_virtnetworkd.aug
+%{_unitdir}/virtnetworkd.service
+%{_unitdir}/virtnetworkd.socket
+%{_unitdir}/virtnetworkd-ro.socket
+%{_unitdir}/virtnetworkd-admin.socket
+%attr(0755, root, root) %{_sbindir}/virtnetworkd
 %dir %attr(0700, root, root) %{_sysconfdir}/libvirt/qemu/
 %dir %attr(0700, root, root) %{_sysconfdir}/libvirt/qemu/networks/
 %dir %attr(0700, root, root) %{_sysconfdir}/libvirt/qemu/networks/autostart
diff --git a/src/network/Makefile.inc.am b/src/network/Makefile.inc.am
index 23cf39b6f4..672142452e 100644
--- a/src/network/Makefile.inc.am
+++ b/src/network/Makefile.inc.am
@@ -49,6 +49,67 @@ libvirt_driver_network_impl_la_CFLAGS = \
 libvirt_driver_network_impl_la_SOURCES = $(NETWORK_DRIVER_SOURCES)
 libvirt_driver_network_impl_la_LIBADD  = $(DBUS_LIBS) $(LIBXML_LIBS)
 
+sbin_PROGRAMS += virtnetworkd
+
+nodist_conf_DATA += network/virtnetworkd.conf
+augeas_DATA += network/virtnetworkd.aug
+augeastest_DATA += network/test_virtnetworkd.aug
+CLEANFILES += network/virtnetworkd.aug
+
+virtnetworkd_SOURCES = $(REMOTE_DAEMON_SOURCES)
+virtnetworkd_CFLAGS = \
+       $(REMOTE_DAEMON_CFLAGS) \
+       -DDAEMON_NAME="\"virtnetworkd\"" \
+       -DMODULE_NAME="\"network\"" \
+       $(NULL)
+virtnetworkd_LDFLAGS = $(REMOTE_DAEMON_LD_FLAGS)
+virtnetworkd_LDADD = $(REMOTE_DAEMON_LD_ADD)
+
+SYSTEMD_UNIT_FILES += \
+	virtnetworkd.service \
+	virtnetworkd.socket \
+	virtnetworkd-ro.socket \
+	virtnetworkd-admin.socket \
+	$(NULL)
+SYSTEMD_UNIT_FILES_IN += \
+	network/virtnetworkd.service.in \
+	$(NULL)
+
+VIRTNETWORKD_UNIT_VARS = \
+	$(VIRTD_UNIT_VARS) \
+	-e 's|[@]name[@]|Libvirt network|g' \
+	-e 's|[@]service[@]|virtnetworkd|g' \
+	-e 's|[@]sockprefix[@]|virtnetworkd|g' \
+	$(NULL)
+
+virtnetworkd.service: network/virtnetworkd.service.in $(top_builddir)/config.status
+	$(AM_V_GEN)sed $(VIRTNETWORKD_UNIT_VARS) < $< > $@-t && mv $@-t $@
+
+virtnetwork%.socket: remote/libvirt%.socket.in $(top_builddir)/config.status
+	$(AM_V_GEN)sed $(VIRTNETWORKD_UNIT_VARS) < $< > $@-t && mv $@-t $@
+
+network/virtnetworkd.conf: remote/libvirtd.conf.in
+	$(AM_V_GEN)sed \
+		-e '/[@]CUT_ENABLE_IP[@]/,/[@]END[@]/d' \
+		-e 's/[@]DAEMON_NAME[@]/virtnetworkd/' \
+		< $^ > $@
+
+network/virtnetworkd.aug: remote/libvirtd.aug.in
+	$(AM_V_GEN)$(SED) \
+		-e '/[@]CUT_ENABLE_IP[@]/,/[@]END[@]/d' \
+		-e 's/[@]DAEMON_NAME[@]/virtnetworkd/' \
+		-e 's/[@]DAEMON_NAME_UC[@]/Virtnetworkd/' \
+		$< > $@
+
+network/test_virtnetworkd.aug: remote/test_libvirtd.aug.in \
+		network/virtnetworkd.conf $(AUG_GENTEST)
+	$(AM_V_GEN)$(AUG_GENTEST) network/virtnetworkd.conf \
+		$(srcdir)/remote/test_libvirtd.aug.in | \
+		$(SED) -e '/[@]CUT_ENABLE_IP[@]/,/[@]END[@]/d' \
+		-e 's/[@]DAEMON_NAME[@]/virtnetworkd/' \
+		-e 's/[@]DAEMON_NAME_UC[@]/Virtnetworkd/' \
+		> $@ || rm -f $@
+
 libexec_PROGRAMS += libvirt_leaseshelper
 libvirt_leaseshelper_SOURCES = $(NETWORK_LEASES_HELPER_SOURCES)
 libvirt_leaseshelper_LDFLAGS = \
diff --git a/src/network/virtnetworkd.service.in b/src/network/virtnetworkd.service.in
new file mode 100644
index 0000000000..656e8b4f84
--- /dev/null
+++ b/src/network/virtnetworkd.service.in
@@ -0,0 +1,25 @@
+[Unit]
+Description=Virtualization network daemon
+Conflicts=libvirtd.service
+Requires=virtnetworkd.socket
+Requires=virtnetworkd-ro.socket
+Requires=virtnetworkd-admin.socket
+After=network.target
+After=dbus.service
+After=apparmor.service
+After=local-fs.target
+Documentation=man:libvirtd(8)
+Documentation=https://libvirt.org
+
+[Service]
+Type=notify
+ExecStart=@sbindir@/virtnetworkd --timeout 120
+ExecReload=/bin/kill -HUP $MAINPID
+Restart=on-failure
+KillMode=process
+
+[Install]
+WantedBy=multi-user.target
+Also=virtnetworkd.socket
+Also=virtnetworkd-ro.socket
+Also=virtnetworkd-admin.socket
-- 
2.21.0