Containerization and Docker

Faruk CEBECI

A Brief History of Your Application (Dependency Hell)

• Lets say you built a two different web applications with python 3.8 and you want to deploy it to a single server.
• What do you need to do?
  1. Install python 3.8
  2. Install required packages
  3. Install web server (Maybe?)
  4. Write a script to run your application
  5. Run your script and hope it works
• Also, another day you built another application with python 3.9 and you want to deploy it to the same server.
• What will happen?

A Brief History of Your Application (Isolation)

• Lets say you have two different applications A and B.
• But application A has a bug and deletes all the files in the server.
• What will happen to application B?