text: from flask import Flask
  from redis import Redis, RedisError
  import os
  import socket
  
  # Connect to Redis
  redis = Redis(host="redis", db=0, socket_connect_timeout=2, socket_timeout=2)
  
  app = Flask(__name__)
  
  
  @app.route("/")
  def hello():
      try:
          visits = redis.incr("counter")
      except RedisError:
          visits = "<i>cannot connect to Redis, counter disabled</i>"
  
      html = "<h3>Hello {name}!</h3>" \
             "<b>Hostname:</b> {hostname}<br/>" \
             "<b>Visits:</b> {visits}"
      return html.format(name=os.getenv("NAME", "world"), hostname=socket.gethostname(), visits=visits)
  
  
  if __name__ == "__main__":
      app.run(host='0.0.0.0', port=5000)
  