app.py

import time

from flask import Flask, request
from tornado.wsgi import WSGIContainer
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop


app = Flask(__name__)


@app.before_request
def start_request(*args, **kwargs):
    request.real_ip = request.headers.get('X-Real-Ip', request.remote_addr)
    request.start_time = time.time()

    print("REQUEST STARTED:", request.real_ip, request.method, request.url)


@app.after_request
def end_request(response_class, *args, **kwargs):
    request.end_time = time.time()
    request_processing_time = "{0:.6f}".format(request.end_time - request.start_time)

    print("REQUEST FINISHED (took ", request_processing_time, "seconds):", request.real_ip, request.method, request.url)
    return response_class


@app.route('/')
def hello():
    return "Hello World!!!"


def main():
    http_server = HTTPServer(WSGIContainer(app))
    http_server.bind(80, address="0.0.0.0")
    print("starting")
    http_server.start(5)
    IOLoop.instance().start()


if __name__ == '__main__':
    main()

Dockerfile

FROM ubuntu:14.04
WORKDIR /opt/example

RUN apt-get update
run apt-get install -y make python-virtualenv

ADD Makefile /opt/example/Makefile
ADD app.py /opt/example/app.py
ADD requirements.txt /opt/example/requirements.txt

RUN make venv

EXPOSE 80

CMD make run

list

http://localhost:8080/
http://localhost:8081/
http://localhost:8082/
http://localhost:8083/
http://localhost:8084/
http://localhost:8085/
http://localhost:8086/
http://localhost:8087/
http://localhost:8088/
http://localhost:8089/
http://localhost:8090/
http://localhost:8091/
http://localhost:8092/
http://localhost:8093/
http://localhost:8094/
http://localhost:8095/
http://localhost:8096/
http://localhost:8097/
http://localhost:8098/
http://localhost:8099/
http://localhost:8100/
http://localhost:8101/
http://localhost:8102/
http://localhost:8103/
http://localhost:8104/
http://localhost:8105/
http://localhost:8106/
http://localhost:8107/
http://localhost:8108/
http://localhost:8109/
http://localhost:8110/
http://localhost:8111/
http://localhost:8112/
http://localhost:8113/
http://localhost:8114/
http://localhost:8115/
http://localhost:8116/
http://localhost:8117/
http://localhost:8118/
http://localhost:8119/
http://localhost:8120/
http://localhost:8121/
http://localhost:8122/
http://localhost:8123/
http://localhost:8124/
http://localhost:8125/
http://localhost:8126/
http://localhost:8127/
http://localhost:8128/
http://localhost:8129/
http://localhost:8130/
http://localhost:8131/
http://localhost:8132/
http://localhost:8133/
http://localhost:8134/
http://localhost:8135/
http://localhost:8136/
http://localhost:8137/
http://localhost:8138/
http://localhost:8139/
http://localhost:8140/
http://localhost:8141/
http://localhost:8142/
http://localhost:8143/
http://localhost:8144/
http://localhost:8145/
http://localhost:8146/
http://localhost:8147/
http://localhost:8148/
http://localhost:8149/
http://localhost:8150/
http://localhost:8151/
http://localhost:8152/
http://localhost:8153/
http://localhost:8154/
http://localhost:8155/
http://localhost:8156/
http://localhost:8157/
http://localhost:8158/
http://localhost:8159/
http://localhost:8160/
http://localhost:8161/
http://localhost:8162/
http://localhost:8163/
http://localhost:8164/
http://localhost:8165/
http://localhost:8166/
http://localhost:8167/
http://localhost:8168/
http://localhost:8169/
http://localhost:8170/
http://localhost:8171/
http://localhost:8172/
http://localhost:8173/
http://localhost:8174/
http://localhost:8175/
http://localhost:8176/
http://localhost:8177/
http://localhost:8178/
http://localhost:8179/

Makefile

venv: venv/bin/activate

venv/bin/activate:
	virtualenv -p /usr/bin/python3 venv
	venv/bin/pip install -Ur requirements.txt

run: venv
	. venv/bin/activate && python3 app.py

build-docker: Dockerfile
	sudo docker build -t example:0.0.1 .

.PHONY: venv install dist run build-docker

requirements.txt

flask
tornado

run_dockers.sh

#!/bin/bash
for (( PORT=8080; PORT<=8180; PORT++ ))
do
docker run -p $PORT:80 -d  -t example:0.0.1
done