simple_flask_server

app.py

from flask import Flask, request, after_this_request

app = Flask(__name__)

@app.route("/api/auth", methods=["GET"])
def auth():
    username = request.args.get('username')
    password = request.args.get('password')
    encode = username + password
    @after_this_request
    def add_header(response):
        response.headers['X-Auth'] = encode
        return response
    return 'Hello World!'


@app.route("/api/login", methods=["GET"])
def login():
    token = request.args.get('token')
    return token

boot.sh

#!/bin/sh

flask run --host=0.0.0.0

Dockerfile

FROM alpine:latest

RUN apk update && apk add python3
RUN python3 -m ensurepip

COPY ./requirements.txt /opt/flask_auth/requirements.txt

WORKDIR /opt/flask_auth

RUN pip3 install -r requirements.txt

COPY . /opt/flask_auth
RUN chmod a+x boot.sh

EXPOSE 5000

VOLUME /opt/FlaskMock

ENV FLASK_APP app.py
ENTRYPOINT ["./boot.sh"]

flask_auth.postman_collection.json

{
	"info": {
		"_postman_id": "83bbad13-4a2b-4934-800c-215d1b516a04",
		"name": "flask_auth",
		"schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
	},
	"item": [
		{
			"name": "auth",
			"event": [
				{
					"listen": "test",
					"script": {
						"id": "134d7ac7-0ec5-4582-bc7e-94f585c185ce",
						"exec": [
							"pm.globals.set(\"auth\",postman.getResponseHeader(\"X-Auth\") );"
						],
						"type": "text/javascript"
					}
				}
			],
			"request": {
				"method": "GET",
				"header": [],
				"url": {
					"raw": "0.0.0.0:5000/api/auth?username=root&password=pwd",
					"host": [
						"0",
						"0",
						"0",
						"0"
					],
					"port": "5000",
					"path": [
						"api",
						"auth"
					],
					"query": [
						{
							"key": "username",
							"value": "root"
						},
						{
							"key": "password",
							"value": "pwd"
						}
					]
				}
			},
			"response": []
		},
		{
			"name": "login",
			"request": {
				"method": "GET",
				"header": [],
				"url": {
					"raw": "0.0.0.0:5000/api/login?token={{auth}}",
					"host": [
						"0",
						"0",
						"0",
						"0"
					],
					"port": "5000",
					"path": [
						"api",
						"login"
					],
					"query": [
						{
							"key": "token",
							"value": "{{auth}}"
						}
					]
				}
			},
			"response": []
		}
	]
}

requirements.txt

Flask

docker build . -t flask_auth
docker run --rm -p 5000:5000 -it flask_auth