Gists for Dockerized Flask application

app.py

from flask import Flask, jsonify
import pymongo
from pymongo import MongoClient

app = Flask(__name__)

def get_db():
    client = MongoClient(host='test_mongodb',
                         port=27017, 
                         username='root', 
                         password='pass',
                        authSource="admin")
    db = client["animal_db"]
    return db

@app.route('/')
def ping_server():
    return "Welcome to the world of animals."

@app.route('/animals')
def get_stored_animals():
    db = get_db()
    _animals = db.animal_tb.find()
    animals = [{"id": animal["id"], "name": animal["name"], "type": animal["type"]} for animal in _animals]
    return jsonify({"animals": animals})

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

Dockerfile

FROM python:3.6
ADD . /app
WORKDIR /app
RUN pip install -r requirements.txt

requirements.txt

flask
pymongo