2.docker-exercises.md

Docker - Exercises

These are steps to complete the two exercises in Docker that I demonstrated yesterday, a recording of which is available here on YouTube.

Exercise 1

Running a simple C programme in Docker

Steps:

1. Navigate to the Docker Playground.
2. Add a new instance of Docker in the playground.
3. Analyze the C programme code given in this repository.
4. Clone the repository inside Docker Playground and open the folder.

   git clone https://github.com/paramsiddharth/docker-calcsum-example.git
   
   cd docker-calcsum-example

5. Build the image using Docker.

   docker build -t c_code .

6. Check the newly-created image using

   docker images

7. Execute the image in a temporary interactive container.

   docker run --rm -it c_code

8. Delete the image.

   docker rmi c_code

9. Exit Docker Playground.

Exercise 2

Running a simple web server in Docker

Steps:

1. Navigate to the Docker Playground.
2. Add a new instance of Docker in the playground.
3. Have an overview of this repository.
4. Clone the repository inside Docker Playground and open the folder.

   git clone https://github.com/paramsiddharth/docker-static-website-lighttpd.git
   
   cd docker-static-website-lighttpd

5. Build the image using Docker.

   docker build -t static_website .

6. Check the newly-created image using

   docker images

7. Execute the image in a temporary container, mapping local port 3000 to port 80 of the container.

   docker run --rm -p 3000:80 static_website

8. Open port 3000 in the playground to visit the website launched.
9. Press Ctrl+C or Cmd+C while in the playgroud terminal to stop the container.
10. Delete the image.

docker rmi static_website

11. Exit Docker Playground.

Made with ❤ by Param.