7.9.1. Docker

Try these first

1. 1.

   What is Docker used for?

   Hint

   Think about how applications might behave differently in different environments.

2. 2.

   What is a Dockerfile?

   Hint

   Remember, it contains instructions.

3. 3.

   What does Docker primarily help with?

   • Development only
   • Containerization
   • Deployment only

   Hint

   Think about the main purpose of Docker.

4. 4.

   True or False: A Dockerfile is a file that contains instructions on how to build Docker images.

   • True
   • False

   Hint

   Consider what is needed to create a Docker environment.

5. 5.

   You are tasked with creating a simple application that consists of a web server and a database. Outline the components of your Dockerfile and docker-compose.yml file.

   Hint

   Think about the commands needed to set up each service and how they will communicate.

6. 6.

   Your application works locally but fails in production. Analyze how Docker could solve these inconsistency issues.

   Hint

   Consider the concept of containers and how they can encapsulate an entire application environment.