Docker Tutorial 2: Pulling Image

After installed the docker, we can try to pull image from Docker hub, which is the step 1 of the image below, which including:

1. search images
2. pull images
3. display images
4. save images
5. load images
6. remove images

(Sik-Ho Tsang @ Medium)

Docker flow (from https://denibertovic.com/talks/supercharge-development-env-using-docker)

1. We can search the docker repository from the Docker hub.

sudo docker search ubuntu

2. Use pull command to pull the image ubuntu:18.04. We can see that a new image is downloaded showing pull complete.

sudo docker pull ubuntu:18.04

3. We can display all the images pulled by images:

sudo docker images

4. We can save the image as tar file.

sudo docker save -o ubuntu.18.04.tar ubuntu:18.04

5. Certainly, we can load the image from tar file.

sudo docker load --input ubuntu.18.04.tar

6. And remove the image by rmi.

sudo docker rmi ubuntu:18.04

Thus, these are some basic commands for pulling images. :)

References

SUPERCHARGE YOUR DEVELOPMENT ENVIRONMENT https://denibertovic.com/talks/supercharge-development-env-using-docker

Day 4 關於 Image 的那些大小事https://ithelp.ithome.com.tw/articles/10193334