MicroPy

Microservice in Python using Flask

Steps

• Install Python3

• Create Virtual Environment python3 -m venv .micropy.env source ./.micropy.env/bin/activate

• Installing Python VSCode Extension

• Installing Flask pip3 install Flask

To show list of installed libraries

pip list

• Minimal Flask Application from flask import Flask

app = Flask(name)

@app.route("/") def hello_world(): return "

Hello, World!

"

• Run Flask App flask --app <> run flask --app myapp run --host=0.0.0.0

Using Environment Variable

set FLASK_APP=myapp flask run --host=0.0.0.0

Rendering Template

Create templates

Freeze Dependencies

pip3 freeze > requirements.txt

To install dependencies

pip3 install -r requirements.txt

Running Docker Standalone

docker build -t micropy:1.0 . docker run -d -p 7789:5000 --name micropy micropy:1.0

Tag on DockerHub

docker tag pmittal77/micropy

Running docker inside Minikube

Install minikube and kubectl

Minikube Run and Delete

To Start

minikube start minikube ip

Expose to external IP

minikube tunnel

Deploy app and app service

To get docker environment variables

minikube docker-env

To Delete

minikube delete