virtual-proxy

Virtual-proxy is a py script that helps developer dispatch http request to different docker instance via nginx.

• step1 : run your services and export the inner 80/tcp port out , and append a env variable HOSTNAME ,

  $ docker run -itd -p 8900:80 -eHOSTNAME='project1.localserver.com' java/project1 
  $ docker run -itd -p 8901:80 -eHOSTNAME='project2.localserver.com' java/project2
  $ docker run -itd -p 8902:80 -eHOSTNAME='s1.localserver.com' java/service1

• step2 : run a nginx instance and launch the script

   $ docker run -itd -p 80:80 nginx
   $ python vp.py

• Step3: the script will find all instances with in-container http service , and list a ip=> hostname result, append the result to your /etc/hosts file. then you can visit the all the instance via host name.

* the script will not change the hosts file automatically, you add this feature on demand.

* the script using IP address in proxy config file , if your ip changed or a new service is launched or a existing service shut down , you have to re-launch the script , it will update the nginx proxy's config on the fly.