Sample Python App with Dockerfile

Dockerfile

FROM python:3.7-slim
RUN pip install flask
WORKDIR /myapp
COPY main.py /myapp/main.py
CMD ["python", "/myapp/main.py"]

main.py

from flask import Flask

app = Flask(__name__)

@app.route('/')
def index():
    return 'Welcome to Python  APP & Online Training with tirupati venkat ver1.0'

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8080)

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