2 - 02 - Build a Image (Docker commit)

There are two ways to build image, Docker commit and Dockerfile (recommendation).
In this lab, I will study to use Docker commit to build a image.
First, pull a ubuntu image from Docker Hub.
This image will not include vim.
I will install vim and then build a new image called ubuntu-vi.

1. Download a ubuntu image from Docker Hub

$ docker pull ubuntu

2. Verify

$ docker images ubuntu 

3. Run this image.

$ docker run -it ubuntu

4. Make sure this image has not vim

# vim

5. Install vim

# apt-get update
# apt-get install -y apt-file
# apt-file update
# apt-get install -y vim

6. Open another terminal and check the container process. Ths name is called kind_mirzakhani.

$ docker ps

7. Using the docker commit to build a new image called ubuntu-vi

$ docker commit kind_mirzakhani ubuntu-vi

8. Check docker image, I found a new image ubuntu-vi

$ docker image ls

9. In the second terminal, let us run the new image and check vim is working.

$ docker run -it ubuntu-vi
# which vim

10. Using docker history to analyse the ubuntu-vi.

$ docker history  ubuntu-vi:latest

最初發表 / 最後更新: 2019.05.27 / 2019.05.27