more settings of systemd for postgress

lib/data/templates/postgresql/postgresql.service.erb

@@ -3,12 +3,17 @@ Description=PostgreSQL <%= version %>
 After=network.target
 
 [Service]
-Type=notify
+# Type=notify
+Type=simple
 
 User=postgresql
-Group=servicesql
+Group=services
+
+ExecStart=<%= postgres_bin %> -D <%= database_dir %>
+
+StandardOutput=journal
+StandardError=journal
 
-ExecStart=<%= postgres_bin %> -D <%= database_dir %>/data
 ExecReload=/bin/kill -HUP $MAINPID
 KillMode=mixed
 TimeoutSec=300
@@ -16,8 +21,10 @@ Restart=on-failure
 NotifyAccess=all
 
 # Security
-ProtectSystem=full
-ProtectHome=true
+#ProtectSystem=full
+#ProtectHome=true
+#ReadWritePaths=<%= database_dir %>
+
 PrivateTmp=true
 NoNewPrivileges=true