├── web-hello-world
    ├── requirements.txt
    ├── resources
    │   └── response.json
    ├── Dockerfile
    └── app.py
├── hello-world
    ├── app.py
    └── Dockerfile
└── mongodb
    ├── app.py
    └── storage.py


/web-hello-world/requirements.txt:
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1 | flask==1.1.1
2 | 


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/web-hello-world/resources/response.json:
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1 | {
2 |     "payload": "Hello, World!!!."
3 | }


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/hello-world/app.py:
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1 | import time
2 | 
3 | 
4 | while True:
5 |     print("Hello, World!")
6 |     time.sleep(1)
7 | 
8 | 


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/hello-world/Dockerfile:
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 1 | FROM python:3.6
 2 | 
 3 | RUN mkdir -p /usr/src/app/
 4 | 
 5 | WORKDIR /usr/src/app/
 6 | 
 7 | COPY . /usr/src/app/
 8 | 
 9 | CMD ["python", "app.py"]
10 | 


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/web-hello-world/Dockerfile:
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 1 | FROM python:3.6
 2 | 
 3 | RUN mkdir -p /usr/src/app/
 4 | WORKDIR /usr/src/app/
 5 | 
 6 | 
 7 | COPY . /usr/src/app/
 8 | RUN pip install --no-cache-dir -r requirements.txt
 9 | 
10 | EXPOSE 8080
11 | 
12 | 
13 | CMD ["python", "app.py"]
14 | 


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/mongodb/app.py:
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 1 | import time
 2 | from uuid import uuid4
 3 | from storage import MongodbService
 4 | 
 5 | 
 6 | storage = MongodbService.get_instance()
 7 | 
 8 | for _ in range(5):
 9 |     dto = {
10 |         "_id": str(uuid4()),
11 |         "payload": str(uuid4()),
12 |         "field2": str(int(time.time()))
13 |     }
14 |     storage.save_data(dto)
15 | 
16 | 
17 | for data in storage.get_data():
18 |     print(data)
19 | 


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/web-hello-world/app.py:
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 1 | import os
 2 | import json
 3 | import datetime
 4 | from flask import Flask
 5 | 
 6 | app = Flask(__name__)
 7 | 
 8 | BASE_FOLDER = os.path.dirname(os.path.abspath(__file__))
 9 | RESOURCE_DIR = os.path.join(BASE_FOLDER, "resources")
10 | 
11 | 
12 | @app.route('/')
13 | def hello_world():
14 |     with open(os.path.join(RESOURCE_DIR, "response.json")) as f:
15 |         return "%s - %s" % (json.loads(f.read()).get("payload"), datetime.datetime.now().strftime("%d.%m.%Y %H:%M:%S"))
16 | 
17 | 
18 | if __name__ == "__main__":
19 |     app.run(host="0.0.0.0", port=8080, debug=True)
20 | 


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/mongodb/storage.py:
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 1 | from pymongo import MongoClient
 2 | 
 3 | 
 4 | class MongodbService(object):
 5 |     _instance = None
 6 |     _client = None
 7 |     _db = None
 8 | 
 9 |     @classmethod
10 |     def get_instance(cls, *args, **kwargs):
11 |         if cls._instance is None:
12 |             cls._instance = super().__new__(cls, *args, **kwargs)
13 |             cls.__init__(cls._instance, *args, **kwargs)
14 |         return cls._instance
15 | 
16 |     def __init__(self):
17 |         self._client = MongoClient("localhost", 27017)
18 |         self._db = self._client.youtube_db
19 | 
20 |     def get_data(self):
21 |         return list(self._db.statistics.find())
22 | 
23 |     def save_data(self, dto):
24 |         return self._db.statistics.insert_one(dto)
25 | 


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