Zkt22/assignment1-fruitapp

Overview of the APP

The application consist of two parts, an API and a front end. The application displays 5 fruits which are seeded to the database at the startup. The get API provides the list of fruits. Anyone can like a fruit. In this case the count of like will be increased.

Requirements

The basic system requirements are as follows

• Any OS, preferably Linux
• Docker
• Docker compose

Architecture

Technology used

• Flask (Backend Rest API)
• Angular (Frontend)
• MySQL - as persistent database

Docker environment

For shipping and deploying the application docker-compose is used. All the configurations are in the docker-compose.yml file.

Key points of the docker-compose.yml is given below.

services

• backend: runs the Flask web API.
• db runs the mysql database required for the backend API
• web this is the front-end application

Virtual networks

One virtual network is used

• main

list of the containers

fruitapp-backend

This container runs under the service name backend. The dockerfile user for this container is located at fruitapp-backend/Dockerfile. This container is based on python:3.9 image.

fruitapp-frontend

The frontend container for the application. The dockerfile is located at fruitapp-frontend/.docker/dev/Dockerfile. Base image used to build this container is Node:14.

db container

The container is built using the official mysql:5.7.22 image pulled from dockerhub.

Preparation

To prepare the environment for the first time run the following command

bash prepare-app.sh

Running

Run the app background

bash start-app.sh

see the logs of backend

docker-compose logs -f backend

see the logs of forntend

docker-compose logs -f web

see the logs of database

docker-compose logs -f db

Stopping

bash stop-app.sh

Removing containers

bash remove-app.sh

Viewing the app

After running the app. visit http://localhost:4200 to view the app