dmisdani/helloworld_k8s repository overview

pi@master0:~/flask $ ls
Dockerfile  hello_world.py  requirements.txt

FROM resin/raspberry-pi-alpine-python:latest

MAINTAINER Dimitris Misdanitis "[email protected]"
LABEL vendor="Dimitris Misdanitis"
LABEL version="0.1"
LABEL release-date="2018-06-03"
COPY . /app
WORKDIR /app
RUN pip install -r requirements.txt
EXPOSE 5000
CMD python ./hello_world.py

import os
from flask import Flask

app = Flask(__name__)
 
@app.route("/")
def hello():
    host=os.environ["HOSTNAME"]
    return "Hello World, Host: %s"%host
          
if __name__ == "__main__":
    app.run(host='0.0.0.0', port=5000,debug=True)

flask

docker build --tag dmisdani/helloworld_k8s:arm -f Dockerfile .

docker run --name hello-world -p 5000:5000 -e "HOSTNAME="/tmp/hostname" dmisdani/helloworld_k8s:arm