systemd: Augment Requires/Wants with After

Requires/Wants only tells systemd that the corresponding unit
should be started when the current one is, but that could very
well happen in parallel. For virtlogd/virtlockd, we want the
socket to be already active when the hypervisor driver is
started.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

src/libxl/virtxend.service.extra.in

@@ -1,5 +1,6 @@
 [Unit]
 Wants=virtlockd.socket
+After=virtlockd.socket
 After=remote-fs.target
 After=xencommons.service
 Conflicts=xendomains.service

src/locking/virtlockd.service.in

@@ -3,6 +3,7 @@ Description=Virtual machine lock manager
 BindsTo=virtlockd.socket
 Wants=virtlockd-admin.socket
 After=virtlockd.socket
+After=virtlockd-admin.socket
 Before=libvirtd.service
 Documentation=man:virtlockd(8)
 Documentation=https://libvirt.org

src/logging/virtlogd.service.in

@@ -3,6 +3,7 @@ Description=Virtual machine log manager
 BindsTo=virtlogd.socket
 Wants=virtlogd-admin.socket
 After=virtlogd.socket
+After=virtlogd-admin.socket
 Before=libvirtd.service
 Documentation=man:virtlogd(8)
 Documentation=https://libvirt.org

src/qemu/virtqemud.service.extra.in

@@ -1,6 +1,8 @@
 [Unit]
 Requires=virtlogd.socket
 Wants=virtlockd.socket
+After=virtlogd.socket
+After=virtlockd.socket
 Wants=systemd-machined.service
 After=systemd-machined.service
 After=remote-fs.target

src/remote/libvirtd.service.in

@@ -1,13 +1,18 @@
 [Unit]
 Description=Virtualization daemon
-Requires=virtlogd.socket
 # Use Wants instead of Requires so that users
 # can disable these three .socket units to revert
 # to a traditional non-activation deployment setup
 Wants=libvirtd.socket
 Wants=libvirtd-ro.socket
 Wants=libvirtd-admin.socket
+After=libvirtd.socket
+After=libvirtd-ro.socket
+After=libvirtd-admin.socket
+Requires=virtlogd.socket
 Wants=virtlockd.socket
+After=virtlogd.socket
+After=virtlockd.socket
 Wants=systemd-machined.service
 After=network.target
 After=dbus.service

src/virtd.service.in

@@ -4,6 +4,8 @@ BindsTo=@service@.socket
 Wants=@service@-ro.socket
 Wants=@service@-admin.socket
 After=@service@.socket
+After=@service@-ro.socket
+After=@service@-admin.socket
 Conflicts=libvirtd.service
 After=libvirtd.service
 After=network.target