1.web子目录

1.1 index.py

#!/usr/bin/python
#authors: yeasy.github.com
#date: 2013-07-05
import sys
import BaseHTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
import socket
import fcntl
import struct
import pickle
from datetime import datetime
from collections import OrderedDict
class HandlerClass(SimpleHTTPRequestHandler):
    def get_ip_address(self,ifname):
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        return socket.inet_ntoa(fcntl.ioctl(
            s.fileno(),
            0x8915, # SIOCGIFADDR
            struct.pack('256s', ifname[:15])
        )[20:24])
    def log_message(self, format, *args):
        if len(args) < 3 or "200" not in args[1]:
            return
        try:
            request = pickle.load(open("pickle_data.txt","r"))
        except:
            request=OrderedDict()
        time_now = datetime.now()
        ts = time_now.strftime('%Y-%m-%d %H:%M:%S')
        server = self.get_ip_address('eth0')
        host=self.address_string()
        addr_pair = (host,server)
        if addr_pair not in request:
            request[addr_pair]=[1,ts]
        else:
            num = request[addr_pair][0]+1
            del request[addr_pair]
            request[addr_pair]=[num,ts]
        file=open("index.html", "w")
        file.write("<!DOCTYPE html> <html> <body><center><h1><font color=\"blue\"
            face=\"Georgia, Arial\" size=8><em>HA</em></font> Webpage Visit
            Results</h1></center>");
        for pair in request:
            if pair[0] == host:
                guest = "LOCAL: "+pair[0]
            else:
                guest = pair[0]
            if (time_now-datetime.strptime(request[pair][1],'%Y-%m-%d %H:%M:%S'))
                .seconds < 3:
                file.write("<p style=\"font-size:150%\" >#"+ str(request[pair]
                    [1]) +": <font color=\"red\">"+str(request[pair][0])+ "</
                    font> requests " + "from &lt<font color=\"blue\">"+guest+"
                    </font>&gt to WebServer &lt<font color=\"blue\">"+pair[1]+"
                    </font>&gt</p>")
            else:
                file.write("<p style=\"font-size:150%\" >#"+ str(request[pair]
                    [1]) +": <font color=\"maroon\">"+str(request[pair][0])+
                    "</font> requests " + "from &lt<font color=\"navy\">"+guest+
                    "</font>&gt to WebServer &lt<font color=\"navy\">"+pair[1]+
                    "</font>&gt</p>")
        file.write("</body> </html>");
        file.close()
        pickle.dump(request,open("pickle_data.txt","w"))
if __name__ == '__main__':
    try:
        ServerClass = BaseHTTPServer.HTTPServer
        Protocol = "HTTP/1.0"
        addr = len(sys.argv) < 2 and "0.0.0.0" or sys.argv[1]
        port = len(sys.argv) < 3 and 80 or int(sys.argv[2])
        HandlerClass.protocol_version = Protocol
        httpd = ServerClass((addr, port), HandlerClass)
        sa = httpd.socket.getsockname()
        print "Serving HTTP on", sa[0], "port", sa[1], "..."
        httpd.serve_forever()
    except:
        exit()

1.2 index.html

$ touch index.html

1.3 Dockerfile

FROM python:2.7
WORKDIR /code
ADD . /code
EXPOSE 80
CMD python index.py

2.haproxy子目录

global
    log 127.0.0.1 local0
    log 127.0.0.1 local1 notice
    maxconn 4096
defaults
    log global
    mode http
    option httplog
    option dontlognull
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms
listen stats
    bind 0.0.0.0:70
    mode http
    stats enable
    stats hide-version
    stats scope .
    stats realm Haproxy\ Statistics
    stats uri /
    stats auth user:pass
frontend balancer
    bind 0.0.0.0:80
    mode http
    default_backend web_backends
backend web_backends
    mode http
    option forwardfor
    balance roundrobin
    server weba weba:80 check
    server webb webb:80 check
    server webc webc:80 check
    option httpchk GET /
    http-check expect status 200

3.docker-compose.yml文件

# This will start a haproxy and three web services. haproxy will act as a
loadbalancer.
# Authors: yeasy.github.com
# Date: 2015-11-15
weba:
    build: ./web
    expose:
        - 80
webb:
    build: ./web
    expose:
        - 80
webc:
    build: ./web
    expose:
        - 80
haproxy:
    image: haproxy:1.6
    volumes:
        - ./haproxy:/haproxy-override
        - ./haproxy/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro
    links:
        - weba
        - webb
        - webc
    ports:
        - "80:80"
        - "70:70"

4.运行compose项目

haproxy_web├── docker-compose.yml├── haproxy│ └── haproxy.cfg└── web
    ├── Dockerfile
    ├── index.html
    └── index.py

$ sudo docker-compose up
Recreating haproxyweb_webb_1...
Recreating haproxyweb_webc_1...
Recreating composehaproxyweb_weba_1...
Recreating composehaproxyweb_haproxy_1...
Attaching to composehaproxyweb_webb_1, composehaproxyweb_webc_1, composehaproxyweb_weba_1, composehaproxyweb_haproxy_1

【云原生 | 53】Docker三剑客之Docker Compose应用案例一：Web负载均衡-LMLPHP

$ docker images
REPOSITORY          TAG         IMAGE ID         CREATED           VIRTUAL SIZE
haproxyweb_webb     latest      33d5e6f5e20b     44 minutes ago    675.2 MB
haproxyweb_weba     latest      33d5e6f5e20b     44 minutes ago    675.2 MB
haproxyweb_webc     latest      33d5e6f5e20b     44 minutes ago    675.2 MB

👑👑👑结束语👑👑👑

【云原生 | 53】Docker三剑客之Docker Compose应用案例一：Web负载均衡-LMLPHP

小鹏linux

【云原生 | 53】Docker三剑客之Docker Compose应用案例一：Web负载均衡

1.web子目录

1.1 index.py

1.2 index.html

1.3 Dockerfile

2.haproxy子目录

3.docker-compose.yml文件

4.运行compose项目

👑👑👑结束语👑👑👑