add webkit

webkit/Dockerfile

@@ -0,0 +1,24 @@
+#
+# Dockerfile for webkit
+#
+
+FROM ubuntu:14.04
+MAINTAINER kev
+
+RUN apt-get update && apt-get install -y supervisor haproxy libfontconfig1 libfreetype6
+RUN mkdir -p /usr/local/lib/webkit/
+
+ADD ./*.js ./includes/ /usr/local/lib/webkit/
+ADD ./phantomjs /usr/local/bin/
+ADD ./webkit.sh /usr/local/bin/
+ADD ./restart.sh /usr/local/bin/
+ADD ./haproxy.cfg /etc/haproxy/
+ADD ./supervisor/supervisord.conf /etc/supervisor/
+ADD ./supervisor/conf.d/haproxy.conf /etc/supervisor/conf.d/
+ADD ./supervisor/conf.d/webkit.conf /etc/supervisor/conf.d/
+ADD ./supervisor/conf.d/restart.conf /etc/supervisor/conf.d/
+
+EXPOSE 1024 9001
+
+CMD /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf
+

webkit/haproxy.cfg

@@ -0,0 +1,42 @@
+global
+	log /dev/log	local0
+	log /dev/log	local1 notice
+	chroot /var/lib/haproxy
+	user haproxy
+	group haproxy
+	#daemon
+
+defaults
+	log	global
+	mode	http
+	option	httplog
+	option	dontlognull
+        contimeout 5000
+        clitimeout 50000
+        srvtimeout 50000
+	errorfile 400 /etc/haproxy/errors/400.http
+	errorfile 403 /etc/haproxy/errors/403.http
+	errorfile 408 /etc/haproxy/errors/408.http
+	errorfile 500 /etc/haproxy/errors/500.http
+	errorfile 502 /etc/haproxy/errors/502.http
+	errorfile 503 /etc/haproxy/errors/503.http
+	errorfile 504 /etc/haproxy/errors/504.http
+
+
+frontend front
+	bind 0.0.0.0:1024
+	default_backend back
+	stats enable
+	stats admin if TRUE
+
+backend back
+	server s0 127.0.0.1:8080 maxconn 10
+	server s1 127.0.0.1:8081 maxconn 10
+	server s2 127.0.0.1:8082 maxconn 10
+	server s3 127.0.0.1:8083 maxconn 10
+	server s4 127.0.0.1:8084 maxconn 10
+	server s5 127.0.0.1:8085 maxconn 10
+	server s6 127.0.0.1:8086 maxconn 10
+	server s7 127.0.0.1:8087 maxconn 10
+	server s8 127.0.0.1:8088 maxconn 10
+	server s9 127.0.0.1:8089 maxconn 10

webkit/restart.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+#
+# restart webkit instances one by one forever
+#
+
+while :
+do
+    for ((i=8080; i<8090; i++))
+    do
+        sleep 30
+        /usr/bin/supervisorctl restart webkit:webkit-$i
+    done
+done

webkit/server.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env phantomjs
 
-var system = require('system');
+var fs = require('fs');
+var sys = require('system');
 var server = require('webserver').create();
 var parser = require('./parser');
 var client = require('./client');
@@ -8,15 +9,14 @@ var utils = require('./utils');
 
 
 var port;
-if(system.args.length > 1) {
-    port = parseInt(system.args[1]);
+if(sys.args.length > 1) {
+    port = parseInt(sys.args[1]);
 } else {
     port = 1024;
 }
 
 
 var ok = server.listen(port, function(request, response) {
-    var req;
     if(request.method === 'POST') {
         try {
             var raw = request.postRaw || request.post || '{}',
@@ -40,7 +40,10 @@ var ok = server.listen(port, function(request, response) {
 
 
 if(ok) {
+    var pidfile = '/tmp/webkit-' + port.toString() + '.pid';
     utils.info('service started (listen %d)', port);
+    utils.info('write pidfile: %s (pid %d)', pidfile, sys.pid);
+    fs.write(pidfile, sys.pid.toString(), 'w');
 } else {
     utils.error('service failed to start');
     phantom.exit(1);

webkit/supervisor/conf.d/haproxy.conf

@@ -0,0 +1,2 @@
+[program:haproxy]
+command = /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid

webkit/supervisor/conf.d/restart.conf

@@ -0,0 +1,2 @@
+[program:restart]
+command = /usr/local/bin/restart.sh

webkit/supervisor/conf.d/webkit.conf

@@ -0,0 +1,5 @@
+[program:webkit]
+command = /usr/local/bin/webkit.sh %(process_num)d
+numprocs_start = 8080
+numprocs = 10
+process_name = %(program_name)s-%(process_num)d

webkit/supervisor/supervisord.conf

@@ -0,0 +1,20 @@
+[inet_http_server]
+port = 0.0.0.0:9001
+
+[unix_http_server]
+file=/var/run/supervisor.sock
+chmod=0700
+
+[supervisord]
+logfile=/var/log/supervisor/supervisord.log
+pidfile=/var/run/supervisord.pid
+childlogdir=/var/log/supervisor
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+[supervisorctl]
+serverurl=http://127.0.0.1:9001
+
+[include]
+files = /etc/supervisor/conf.d/*.conf

webkit/webkit.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+#
+# run webkit instance
+#
+
+set -e
+cd /usr/local/lib/webkit
+phantomjs server.js "$@"
+