Docker Exam Review - Fall 2022

Docker

In a new directory, do the following:

• Wget the file here, extract it to your new directory
• Create a Dockerfile that does the following:
  • Based on Python:3.4
  • Executes the following commands at build time:
    • groupadd -r uwsgi && useradd -r -g uwsgi uwsgi
    • pip install Flask==0.10.1 uWSGI requests==2.5.1 redis==2.10.3
  • Sets the working directory to /app
  • Copies the contents of app in your host machine to /app
  • Downloads this file to your /cmd.sh in your container
  • Exposes ports 9090 and 9091
  • Executes as the user uwsgi
  • Runs the following command at container runtime /cmd.sh
• Create a new docker-compose.yml file that does the following:
  • Creates a container named identidock built upon your previous docker image
  • forwards port 5000 from the local machine into the container
  • sets an environment variable named ENV and sets it to DEV
  • links to the following container images
    • dnmonster, based on the docker image amouat/dnmonster:1.0
    • redis, based on the docker image redis:3.0

Bring up your docker compose file.

Viewing

To view your app, create a tunnel like: ssh jfrancom@ssh.cs.utahtech.edu -L 8080:144.38.x.y:8080 -L 5000:144.38.x.y:5000 -L 9090:144.38.x.y:9090. Visit your browser at http://localhost:5000

Extra

Comment out the section that copies app into your container. Mount it as a bind mount.