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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

Arch