refactor: code restructure

1. split frontend and backend
2. simplify supervisor configuration
3. align backend log format with supervisor
4. set nginx worker to 1
5. delete static web pages

image/etc/supervisor/conf.d/supervisord.conf

@@ -7,13 +7,13 @@ directory=/root
 [program:nginx]
 priority=10
 command=nginx -c /etc/nginx/nginx.conf -g 'daemon off;'
-stdout_logfile=/var/log/nginx.log
 
 [program:web]
 priority=10
-directory=/usr/local/lib/web
-command=/usr/local/lib/web/run.py
-stdout_logfile=/var/log/web.log
+directory=/usr/local/lib/web/backend
+command=/usr/local/lib/web/backend/run.py
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0
 
 [group:x]
 programs=xvfb,wm,lxpanel,pcmanfm,x11vnc,novnc
@@ -22,13 +22,11 @@ programs=xvfb,wm,lxpanel,pcmanfm,x11vnc,novnc
 priority=10
 command=/usr/local/bin/xvfb.sh
 stopsignal=KILL
-stdout_logfile=/var/log/xvfb.log
 
 [program:wm]
 priority=15
 command=/usr/bin/openbox
 environment=DISPLAY=":1",HOME="/root",USER="root"
-stdout_logfile=/var/log/openbox.log
 
 [program:lxpanel]
 priority=15
@@ -36,7 +34,6 @@ directory=%HOME%
 command=/usr/bin/lxpanel --profile LXDE
 user=%USER%
 environment=DISPLAY=":1",HOME="%HOME%",USER="%USER%"
-stdout_logfile=/var/log/lxpanel.log
 
 [program:pcmanfm]
 priority=15
@@ -44,16 +41,13 @@ directory=%HOME%
 command=/usr/bin/pcmanfm --desktop --profile LXDE
 user=%USER%
 environment=DISPLAY=":1",HOME="%HOME%",USER="%USER%"
-stdout_logfile=/var/log/pcmanfm.log
 
 [program:x11vnc]
 priority=20
 command=x11vnc -display :1 -xkb -forever -shared -repeat
-stdout_logfile=/var/log/x11vnc.log
 
 [program:novnc]
 priority=25
 directory=/usr/local/lib/novnc/
 command=/usr/local/lib/novnc/utils/launch.sh --listen 6081
-stdout_logfile=/var/log/novnc.log
 stopasgroup=true