Two Jankiram/web GitHub projects

[rasekar2000]

Current janakiram/web in DockerHub (https://hub.docker.com/r/janakiramm/web/)
actually, refers to the following Python based following Docker file @PORT 500
https://github.com/janakiramm/kubernetes-101/blob/master/Docker/build.sh.

But in the Replication Controller, Webapp refers to the NodeJS + MongoDB based App running @3000 port
https://github.com/janakiramm/do-k8s/blob/master/todo-all-in-one.yaml#L75
I am not sure about github location for this nodejs+mongodb source code.

And hence I changed this Python code to use Kube Service ENV variable with redis:alpine docker hub image.

from flask import Flask
from redis import Redis
import os
app = Flask(__name__)
redis = Redis(host=os.environ.get('DB_SERVICE_HOST', 'redis'), port=os.environ.get('DB_SERVICE_PORT', 'port'))

@app.route('/')
def hello():
    redis.incr('hits')
    return 'Hello Container World! I have been seen %s times.\n' % redis.get('hits')

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000, debug=True)

And everything worked. So, you may review this when you have some time to fix whichever janankiram/web accordingly.

Thanks in advance.