nuitka-docker-example

minimal docker image (from scratch) containing just a compiled python program and its dependent libs

the python program in app will be compiled (expecting an entrypoint of app.py) by nuitka and then a docker image will be created containing nothing but the compiled python app, its lib dependencies and the ld linker.

I'm not sure how usefull this is but it is at least interesting

Hello World

examples/hello_world contains a simple python app to test the basic principal

if __name__ == "__main__":
    print("Hello World")

You can run this with:

docker run transactcharlie/nuitka-example:hello-world

You should see output such as:

# docker run transactcharlie/nuitka-docker-example:latest
Unable to find image 'transactcharlie/nuitka-docker-example:latest' locally
latest: Pulling from transactcharlie/nuitka-docker-example
334c10c8c5cb: Pulling fs layer
334c10c8c5cb: Verifying Checksum
334c10c8c5cb: Download complete
334c10c8c5cb: Pull complete
Digest: sha256:878649c895775d20a0953dfa3032640be5590f6e116d67c98e8ad83ac9e9f992
Status: Downloaded newer image for transactcharlie/nuitka-docker-example:latest
It worked!

Which is a lot of work to print a simple message to the console but...... it was fun!

Waitress

examples/waitress contains a much more involved example using Flask and Waitress to run a web server The app.py is still quite simple however

from flask import Flask
from waitress import serve

import logging

FORMAT = '%(asctime)-15s %(levelname)s:%(message)s'
logging.basicConfig(format=FORMAT, datefmt='%Y-%m-%dT%I:%M:%S', level=logging.INFO)
log = logging.getLogger(__name__)
app = Flask(__name__)


@app.route("/")
def hello():
    log.info("Hello World!")
    return "Hello World!"


if __name__ == "__main__":
    serve(app, host="0.0.0.0", port="8001")

You can run this with:

docker run -p 8001:8001 -it transactcharlie/nuitka-example:waitress

You should see output such as:

Serving on http://0.0.0.0:8001

and you can curl it: curl localhost:8001

Response:

Hello World!%

Sanic

Sanic is a high performance event loop webserver using uvloop. It uses python3 extensively.

examples/sanic.py

from sanic import Sanic
from sanic.response import json

app = Sanic()


@app.route("/")
async def hello(request):
    return json({"hello": "world"})


if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8001)

Run it similar to waitress:

docker run -p 8001:8001 -it transactcharlie/nuitka-example:sanic

Output:

[2018-09-11 16:16:20 +0000] [1] [INFO] Goin' Fast @ http://0.0.0.0:8000
[2018-09-11 16:16:20 +0000] [1] [INFO] Starting worker [1]

Curl: curl localhost:8001

{"hello":"world"}