Cleanup systemd files

- Added documentation lines for each service
- Added Restart on-failure for each service
- Remove Alias from -dir (only for .target unit)
- Added soft dependency for postgresql & mysql for bareos-dir in
  After= line so systemd know we prefer to start once the db is up

Fixes #240: Improve systemd service files

platforms/systemd/bareos-dir.service.in

@@ -13,9 +13,9 @@
 #
 [Unit]
 Description=Bareos Director Daemon service
-Alias=bareos-dir
+Documentation=man:bareos-dir(8)
 Requires=nss-lookup.target network.target remote-fs.target time-sync.target
-After=nss-lookup.target network.target remote-fs.target time-sync.target
+After=nss-lookup.target network.target remote-fs.target time-sync.target postgresql.service mysql.service
 # Dependency about the database
 # We let administrators decide if they need it (if local db instance)
 # Wants=@DEFAULT_DB_TYPE@.service
@@ -35,6 +35,7 @@ StandardOutput=syslog
 ExecStart=@sbindir@/bareos-dir -c @sysconfdir@/bareos-dir.conf
 # This daemon should be able to reload the conf file
 #ExecReload=/sbin/killproc -p @piddir@/bareos-dir.pid -HUP @sbindir@/bareos-dir
+Restart=on-failure
 
 [Install]
 WantedBy=multi-user.target

platforms/systemd/bareos-fd.service.in

@@ -13,6 +13,7 @@
 #
 [Unit]
 Description=Bareos File Daemon service
+Documentation=man:bareos-fd(8)
 Requires=nss-lookup.target network.target remote-fs.target time-sync.target
 After=nss-lookup.target network.target remote-fs.target time-sync.target
 # Wants=
@@ -27,6 +28,8 @@ WorkingDirectory=@working_dir@
 PIDFile=@piddir@/bareos-fd.@fd_port@.pid
 StandardOutput=syslog
 ExecStart=@sbindir@/bareos-fd -c @sysconfdir@/bareos-fd.conf
+Restart=on-failure
+# IOSchedulingClass=idle
 
 [Install]
 WantedBy=multi-user.target

platforms/systemd/bareos-sd.service.in

@@ -13,6 +13,7 @@
 #
 [Unit]
 Description=Bareos Storage Daemon service
+Documentation=man:bareos-sd(8)
 Requires=nss-lookup.target network.target remote-fs.target time-sync.target
 After=nss-lookup.target network.target remote-fs.target time-sync.target
 # Wants=
@@ -28,6 +29,7 @@ PIDFile=@piddir@/bareos-sd.@sd_port@.pid
 # EnvironmentFile=-/etc/sysconfig/bareos-sd
 StandardOutput=syslog
 ExecStart=@sbindir@/bareos-sd -c @sysconfdir@/bareos-sd.conf
+Restart=on-failure
 
 [Install]
 WantedBy=multi-user.target