manos-fr/news_weather_services_python_docker

Project for Master degree. The architecture of python microservices using Docker. Client -> Nginx -> mainApi -> microservices.. The respective service accepts the request, communicates with the database and returns the result to the main api and then to the client.

Python Flask - Nginx microservices with Docker

For a detailed step by step guide check my post at Medium

https://medium.com/@manos_fr/python-flask-scalable-microservices-using-docker-compose-and-nginx-load-balancer-e20d421b1ad6

• Install Docker Engine & Docker Compose

  $ sudo apt-get update
  $ sudo apt-get install docker-ce docker-ce-cli containerd.io

  $ sudo curl -L "https://github.com/docker/compose/releases/download/1.28.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
  $ sudo chmod +x /usr/local/bin/docker-compose

Docker

- Start the Docker daemon (if needed), or desktop app in Windows
$ sudo systemctl start docker. or sudo service docker start

docker-compose up --build --scale master=2 to create 2 mainApis(servers) and use Nginx's load balancer

docker-compose down (to kill and stop docker images)

• Sample http requests in terminal

curl -XGET "localhost/weather?city=athens"
curl -XGET "localhost/news?country=gb"

• Architecture Overview *Update: Added nginx between client and main Api