uwsgi-cgi: General cleanup

* Remove stray LICENSE file added to repo
* Use codeload instead of git
* Add proper (as close as possible) SPDX license
* Drop OpenSSL, PCRE and Libxml2 as dependencies
  Makes it more suitable alternative for small flash devices
* Drop /etc/uwsgi as there's only one config file
* Remove stray /etc/nginx directory
* Reorganize configuration file
* Convert init.d script to use procd
* Hardset 3 threads and processes, seems like a good tradeoff
  between performance and memory usage instead of doing
  auto scaling based on amout of cpu cores/threads

Non-scientific benchmark (tm)
ramips, mt7621, WiTi Board 16/256M

1. 3 threads, 6 processes
2. 2 threads, 2 processes
3. 3 threads, 3 processes

- LuCI Main page

1.48s
1.72s
1.64s

- Status --> Firewall

6.24s
6.39s
6.40s

- Status --> Kernel log

266ms
256ms
251ms

- Network --> Firewall

936ms
1.08s
1.07s

- Network --> Wireless

1.39s
1.42s
1.40s

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

net/uwsgi-cgi/files-luci-support/uwsgi.conf

@@ -1,28 +1,26 @@
 [uwsgi]
-stric = True
-uwsgi_modifier1 = 9
-socket = /var/run/uwsgi.sock
-cgi-mode = true
-cgi = /www/cgi-bin/luci
-chdir = /usr/lib/lua/luci/
-master = True
-buffer-size = 10000
-reload-mercy=8
-max-requests=2000
-limit-as=200
-reload-on-as=256
-reload-on-rss=192
-no-orphans=True
-vacuum=True
-enable-threads=True
-post-buffering=8192
-socket-timeout=120
-thunder-lock = True
-logger = syslog:uwsgi
-daemonize = True
-disable-logging = True
-log-format = %(addr) %(method) %(uri) => generated %(rsize) bytes in %(msecs) msecs
-pidfile=/var/run/uwsgi.pid
-die-on-term=True
-fork-socket=True
-pcre-jit=True
+strict		= true
+socket		= /var/run/uwsgi.sock
+cgi-mode	= true
+cgi		= /www/cgi-bin/luci
+chdir		= /usr/lib/lua/luci/
+master		= true
+buffer-size	= 10000
+reload-mercy	= 8
+max-requests	= 2000
+limit-as	= 200
+reload-on-as	= 256
+reload-on-rss	= 192
+no-orphans	= true
+vacuum		= true
+enable-threads	= true
+post-buffering	= 8192
+socket-timeout	= 120
+thunder-lock	= true
+logger		= syslog:uwsgi
+disable-logging	= true
+log-format	= %(addr) %(method) %(uri) => generated %(rsize) bytes in %(msecs) msecs
+pidfile		= /var/run/uwsgi.pid
+die-on-term	= true
+threads		= 3
+processes	= 3

net/uwsgi-cgi/files-luci-support/uwsgi.init

@@ -1,34 +1,13 @@
-#!/bin/sh /etc/rc.common 
+#!/bin/sh /etc/rc.common
 
 START=79
+USE_PROCD=1
 
-start() {
-	core_number=$(grep -c ^processor /proc/cpuinfo)
-	/usr/sbin/uwsgi --ini /etc/uwsgi/uwsgi.conf --threads $core_number --processes $(($core_number * 2))
-	logger -ts "Uwsgi" "Starting Uwsgi process"
-}                 
- 
-stop() {
-	pidfile="/var/run/uwsgi.pid"
-	if [ -n "$(pgrep uwsgi)" ]; then
-		if [ -f $pidfile ]; then
-			logger -t "Uwsgi" "Stopping Uwsgi process"
-			kill $( cat $pidfile )
-		else
-			for pid in $(pgrep uwsgi); do
-				if [ -n "$(pgrep uwsgi)" ]; then
-					#Keep trying to kill until the master process is found
-					kill -KILL $pid
-				fi
-			done
-		fi
-	else 
-		logger -t "Uwsgi" "Uwsgi not running!"
-	fi
-}
-
-reload() {
-	/usr/sbin/uwsgi --reload /var/run/uwsgi.pid
-}
-
+start_service() {
+	procd_open_instance
+	procd_set_param command /usr/sbin/uwsgi --ini /etc/uwsgi.conf
+	procd_set_param file /etc/uwsgi.conf
+	procd_set_param respawn
+	procd_close_instance
+	}