macdre / mcda5570-assignment02

Assignment 02 for MCDA 5570

By: macdre

This README explains how to use the provided Dockerfile and flask python web app

Clone the repo:

First, clone the git repo into an empty local directory

cd <myworkspace>
mkdir my-docker-web-app
cd my-docker-web-app
git clone https://github.com/macdre/mcda5570-assignment02.git

Build Docker Image

Next, build an image based on the provided dockerfile:

docker build -t <image-name> .

Run Docker Container

Next, run the built image:

docker run -d -P --name <container-name> -it <image-name>

The container will expose a port to docker, check to see what that is:

docker port <container-name>

Note the port that docker has exposed, it will follow the 0.0.0.0 IP. For example, we will use 32768 in this example docker port output:

5000/tcp -> 0.0.0.0:32768 

Test the Flask

Now you can test the web app by running:

curl http://127.0.0.1:<port>/hello

Note, if your connection is rejected, you should confirm the IP that docker is assigning to your application by running the following command:

docker-machine ip

Debugging

To check on the application, you can log into the container like so:

docker exec -it <container-name> bash