About installing python3.8 image in docker

Docker Hub official website

1. Search for Python mirror
docker search python

2. Pull the Python image

docker pull python

3. Check the image after downloading is complete

docker images

4. Run the python image

docker run -itd python:latest bash

5. Enter the container

docker exec -it 6a55 bash # 6a55 is the container id obtained after docker ps checks the python image startup. You can get the complete container id

6. Check the Python version

7. This python image is the base images. All the crawler images I made later are based on this image.

8. The docker commands used are as follows:

docker commit -m='scrapyd' -a='spider' 6a55 scrapyd/python3.8.3:v1
Reference: Docker creates an image

9. Since it is a base image, you need to install some common commands
10. Update apt-get

apt-get update

apt-get install lrzsz -y# Please Baidu for the function of lrzsz

apt-get install vim -y #Must install the artifact, hehe

pip install -i https://pypi.douban.com/simple ipython
# You can set the pip source, I don't usually set it

apt-get install net-tools

cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
# Change time zone
11. That’s all I can think of for now
ctrl+d to exit the current container
12. Remake the container that just installed so many things into a new image
docker ps# Get the container id, mine is 6a55392dba72

13. Start production

docker commit -m="base images" -a="spider" 6a55392dba72 python3.8.3:base-images

If a long string of sha256 appears, it is successful.
14. View the image
docker images

15. Run the created image

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