DevOps Classroomnotes 13/Nov/2022

Solutions to Exercises

Exercise 1

• Exercise: Create a docker image for simple flask application
• Steps:

git clone https://github.com/Sysnove/flask-hello-world.git
cd flask-hello-world
mv hello.py app.py
pip3 install flask
flask run -h "0.0.0.0"

• Refer Here for the dockerfile
• In alpine image git was not installed so moving to bullseye Refer Here
• Build the image and run the container
  
• Now lets inspect the sizes of images
• To fix the size issue, we have moved to bulls eye only for git
  • One solution is to use the multistage build and copy the directory
  • Second solution is clone the git while building the image
    
• Second solution can be found at Refer Here

Exercise -2

• Refer Here for the manual steps to install nop commerce
• Solution:
  • Take an asp.net core runtime
  • Add unzip installation
  • unzip the nopcommerce
  • run the application by dotnet Nop.Web.dll
  • Take mcr.microsoft.com/dotnet/aspnet:6.0 as base image.
• Start building the image.
• Refer Here for the docker file