A client-server networked docker example, using Flask RESTful API to deliver a randomly generated file + checksum to a client. Client will download the file only if checksums match.

Run instructions:

Using Docker Compose Using docker compose is very simple! Simply use the command docker-compose up --build

Building Manually step 1: build the docker images from the docker files

• in the server directory:
  • docker build -t server .
• in the client directory:
  • docker build -t client .

step 2: create a docker network

• in my example, i created a network called "assignment3"
  • docker network create assignment3

step 3: create individual docker volumes to persist data

• docker volume create servervol
• docker volume create clientvol

step 4: run the docker containers, connecting them to the network and mounting the volumes

• server:
  • docker run -v servervol:/serverdata -d --name server --network clientserv -p {port}:5000 server
    • the -p flag will allow you to bind any port of your specification to the exposed port on the container
• client:
  • docker run -v clientvol:/clientdata -d --name client --network clientserv client

if you want to shell in to either container and check the contents of /serverdata or /client data:

• docker exec -it {containername} /bin/bash
  • /{container}data directories are located in the root directory of the container, NOT the working directory.