Configure local docker and mirror and upload to server for use

1. Create a basic container locally ( official website )

1) Uninstall the old version (if any)

sudo apt-get remove docker docker-engine docker.io containerd runc

2) Set up Docker's repository and install from it
Update the package index and install the package to allow using the repository over HTTPS: apt apt

sudo apt-get update

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

3) Add docker's official GPG key

 sudo mkdir -p /etc/apt/keyrings

 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

4) Set up the repository with the following command:

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

5) Install the docker engine
to update the package index and install the latest version of the docker engine, containerization and docker compose

sudo apt-get update
 sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

6) Verify that the Docker engine is installed correctly by running the image. hello-world

sudo service docker start
 sudo docker run hello-world

2.Docker domestic image source

Create or modify /etc/docker/daemon.json file (official document of daemon.json file)

$ sudo vim /etc/docker/daemon.json
add file content

{
    
    
  "registry-mirrors" : [
    "http://registry.docker-cn.com",
    "http://docker.mirrors.ustc.edu.cn",
    "http://hub-mirror.c.163.com"
  ],
  "insecure-registries" : [
    "registry.docker-cn.com",
    "docker.mirrors.ustc.edu.cn"
  ],
  "debug" : true,
  "experimental" : true
}

Then restart docker

$ sudo systemctl daemon-reload

Set up ordinary users to use, and add the current login user to the docker user group
$ sudo gpasswd -a $USER docker
#Update user group
$ newgrp docker
#Test whether the docker command can be used normally by ordinary users
$docker ps

Verify that the Docker engine is installed correctly by running the image. hello-world

sudo service docker start
 sudo docker run hello-world

Getting this output is a success

3. Pull the image locally (for the case where the server is not connected to the Internet), and create a container ( official website )

docker pull  pytorch/pytorch:1.9.1-cuda11.1-cudnn8-devel 

Create a container locally (and give the shared space 15G)

docker run -itd --name=fy(名字)   --shm-size 15g   -v /home/fy（名字）workspace/:/workspace pytorch/pytorch:1.9.1-cuda11.1-cudnn8-devel /bin/bash

into the container

docker exec -it fy（名字）/bin/bash

4. Export this image locally and deploy it to the server

docker save -o mypeerimage.tar pytorch/pytorch:1.9.1-cuda11.1-cudnn8-devel

A tar file of mypeerimage.tar will be generated locally, packaged to the server and use the following command to decompress the image on the server

docker load < mypeerimage.tar

5. Connect to the server and repeat the steps in the third step

Create a container locally (and give the shared space 15G)

docker run -itd --name=fy(=(名字)   --shm-size 15g   -v /home/fy（名字）workspace/:/workspace pytorch/pytorch:1.9.1-cuda11.1-cudnn8-devel /bin/bash

into the container

docker exec -it fy（名字）/bin/bash

At this point, it is set up, upload the code program to the .../workspace directory of the server and it can be used.

lsView files in this directory

6.Common commands for docker

1. docker psView running containers
2. docker ps -aview all containers
3. docker start fyrun container
4. docker exec -it fy /bin/bashinto the container
5. docker stop fystop container
6. docker rm fydelete container
7. docker imagesview mirror
8. docker rmi xdelete x mirror
9. mkdircreate folder
10. rm -rf 文件夹名delete folder
11. docker cp 容器ID： 路径 宿主机路径Copy files in different containers
12. docker cp 文件名 容器ID/容器名：路径Copy the file to the container directory
13. pwdView the absolute path of this directory