Add systemd service file, move Gunicorn configuration to gunicorn.cfg

gunicorn.cfg

@@ -0,0 +1,5 @@
+import multiprocessing
+
+name = "PyGPS"
+bind = "127.0.0.1:6957"
+workers = multiprocessing.cpu_count() * 4

pygps.service

@@ -0,0 +1,20 @@
+[Unit]
+Description = PyGPS
+After = network.target
+
+[Service]
+PermissionsStartOnly = true  
+PIDFile = /run/pygps/pygps.pid  
+User = gps  
+Group = gps  
+WorkingDirectory = /opt/pygps  
+ExecStartPre = /bin/mkdir /run/pygps  
+ExecStartPre = /bin/chown -R gps:gps /run/pygps  
+ExecStart = /usr/bin/env gunicorn -c gunicorn.cfg --pid /run/pygps/pygps.pid main 
+ExecReload = /bin/kill -s HUP $MAINPID  
+ExecStop = /bin/kill -s TERM $MAINPID  
+ExecStopPost = /bin/rm -rf /run/pygps  
+PrivateTmp = true
+
+[Install]
+WantedBy = multi-user.target  

run.sh

@@ -1,8 +1,3 @@
 #!/bin/bash
 
-ip="127.0.0.1"
-port="6957"
-
-workers=$((`getconf _NPROCESSORS_ONLN` * 4))
-
-gunicorn -w $workers -b $ip:$port -n "GPS Endpoint" main
+gunicorn -c gunicorn.cfg main