[libvirt] [PATCH 24/41] nodedev: introduce virtnodedevd daemon

[Daniel P. Berrangé]

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

Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
 .gitignore                              |  4 ++
 libvirt.spec.in                         |  8 ++++
 src/node_device/Makefile.inc.am         | 62 +++++++++++++++++++++++++
 src/node_device/virtnodedevd.service.in | 24 ++++++++++
 4 files changed, 98 insertions(+)
 create mode 100644 src/node_device/virtnodedevd.service.in

diff --git a/.gitignore b/.gitignore
index 3b86183bee..ada72fd618 100644
--- a/.gitignore
+++ b/.gitignore
@@ -160,6 +160,9 @@
 /src/network/test_virtnetworkd.aug
 /src/network/virtnetworkd.aug
 /src/network/virtnetworkd.conf
+/src/node_device/test_virtnodedevd.aug
+/src/node_device/virtnodedevd.aug
+/src/node_device/virtnodedevd.conf
 /src/qemu/test_libvirtd_qemu.aug
 /src/remote/*_client_bodies.h
 /src/remote/*_protocol.[ch]
@@ -185,6 +188,7 @@
 /src/virtlockd
 /src/virtlogd
 /src/virtnetworkd
+/src/virtnodedevd
 /src/virtproxyd
 /src/virtsecretd
 /src/virtstoraged
diff --git a/libvirt.spec.in b/libvirt.spec.in
index dce428ede3..c0b880d569 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1642,6 +1642,14 @@ exit 0
 %endif
 
 %files daemon-driver-nodedev
+%config(noreplace) %{_sysconfdir}/libvirt/virtnodedevd.conf
+%{_datadir}/augeas/lenses/virtnodedevd.aug
+%{_datadir}/augeas/lenses/tests/test_virtnodedevd.aug
+%{_unitdir}/virtnodedevd.service
+%{_unitdir}/virtnodedevd.socket
+%{_unitdir}/virtnodedevd-ro.socket
+%{_unitdir}/virtnodedevd-admin.socket
+%attr(0755, root, root) %{_sbindir}/virtnodedevd
 %{_libdir}/%{name}/connection-driver/libvirt_driver_nodedev.so
 
 %files daemon-driver-nwfilter
diff --git a/src/node_device/Makefile.inc.am b/src/node_device/Makefile.inc.am
index 3e04651e8c..34d65849e1 100644
--- a/src/node_device/Makefile.inc.am
+++ b/src/node_device/Makefile.inc.am
@@ -64,4 +64,66 @@ libvirt_driver_nodedev_la_LIBADD += \
 endif WITH_UDEV
 
 libvirt_driver_nodedev_la_LIBADD += ../gnulib/lib/libgnu.la
+
+sbin_PROGRAMS += virtnodedevd
+
+nodist_conf_DATA += node_device/virtnodedevd.conf
+augeas_DATA += node_device/virtnodedevd.aug
+augeastest_DATA += node_device/test_virtnodedevd.aug
+CLEANFILES += node_device/virtnodedevd.aug
+
+virtnodedevd_SOURCES = $(REMOTE_DAEMON_SOURCES)
+virtnodedevd_CFLAGS = \
+       $(REMOTE_DAEMON_CFLAGS) \
+       -DDAEMON_NAME="\"virtnodedevd\"" \
+       -DMODULE_NAME="\"nodedev\"" \
+       $(NULL)
+virtnodedevd_LDFLAGS = $(REMOTE_DAEMON_LD_FLAGS)
+virtnodedevd_LDADD = $(REMOTE_DAEMON_LD_ADD)
+
+SYSTEMD_UNIT_FILES += \
+	virtnodedevd.service \
+	virtnodedevd.socket \
+	virtnodedevd-ro.socket \
+	virtnodedevd-admin.socket \
+	$(NULL)
+SYSTEMD_UNIT_FILES_IN += \
+	node_device/virtnodedevd.service.in \
+	$(NULL)
+
+VIRTNODEDEVD_UNIT_VARS = \
+	$(VIRTD_UNIT_VARS) \
+	-e 's|[@]name[@]|Libvirt nodedev|g' \
+	-e 's|[@]service[@]|virtnodedevd|g' \
+	-e 's|[@]sockprefix[@]|virtnodedevd|g' \
+	$(NULL)
+
+virtnodedevd.service: node_device/virtnodedevd.service.in $(top_builddir)/config.status
+	$(AM_V_GEN)sed $(VIRTNODEDEVD_UNIT_VARS) < $< > $@-t && mv $@-t $@
+
+virtnodedev%.socket: remote/libvirt%.socket.in $(top_builddir)/config.status
+	$(AM_V_GEN)sed $(VIRTNODEDEVD_UNIT_VARS) < $< > $@-t && mv $@-t $@
+
+node_device/virtnodedevd.conf: remote/libvirtd.conf.in
+	$(AM_V_GEN)sed \
+		-e '/:: CUT ENABLE_IP ::/,/:: END ::/d' \
+		-e 's/:: DAEMON_NAME ::/virtnodedevd/' \
+		< $^ > $@
+
+node_device/virtnodedevd.aug: remote/libvirtd.aug.in
+	$(AM_V_GEN)$(SED) \
+		-e '/:: CUT ENABLE_IP ::/,/:: END ::/d' \
+		-e 's/:: DAEMON_NAME ::/virtnodedevd/' \
+		-e 's/:: DAEMON_NAME_UC ::/Virtnodedevd/' \
+		$< > $@
+
+node_device/test_virtnodedevd.aug: remote/test_libvirtd.aug.in \
+		node_device/virtnodedevd.conf $(AUG_GENTEST)
+	$(AM_V_GEN)$(AUG_GENTEST) node_device/virtnodedevd.conf \
+		$(srcdir)/remote/test_libvirtd.aug.in | \
+		$(SED) -e '/:: CUT ENABLE_IP ::/,/:: END ::/d' \
+		-e 's/:: DAEMON_NAME ::/virtnodedevd/' \
+		-e 's/:: DAEMON_NAME_UC ::/Virtnodedevd/' \
+		> $@ || rm -f $@
+
 endif WITH_NODE_DEVICES
diff --git a/src/node_device/virtnodedevd.service.in b/src/node_device/virtnodedevd.service.in
new file mode 100644
index 0000000000..132ee05a7f
--- /dev/null
+++ b/src/node_device/virtnodedevd.service.in
@@ -0,0 +1,24 @@
+[Unit]
+Description=Virtualization nodedev daemon
+Conflicts=libvirtd.service
+Requires=virtnodedevd.socket
+Requires=virtnodedevd-ro.socket
+Requires=virtnodedevd-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@/virtnodedevd --timeout 120
+ExecReload=/bin/kill -HUP $MAINPID
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target
+Also=virtnodedevd.socket
+Also=virtnodedevd-ro.socket
+Also=virtnodedevd-admin.socket
-- 
2.21.0