tencent cloud

dnf config-manager --add-repo=http://mirrors.tencent.com/docker-ce/linux/centos/docker-ce.repo

dnf list docker-ce

dnf install -y docker-ce --nobest

systemctl start docker

docker info

systemctl start docker

systemctl stop docker

systemctl restart docker

docker pull nginx 

docker tag docker.io/nginx:latest tencentyun/nginx:v1

docker images

docker rmi -f tencentyun/nginx:v1

docker run -it ImageId /bin/bash

docker exec -it container ID /bin/bash

docker commit <container ID or container name> [<repository name>[:<tag>]]

docker commit 1c23456cd7**** tencentyun/nginx:v2

vim Dockerfile

FROM tencentyun/nginx:v2  #Declare a basic image.
MAINTAINER DTSTACK #Declare the image owner.
RUN mkdir /dtstact #Add the command that needs to be run before the container starts after the RUN command. Since Dockerfile files can only contain a maximum of 127 lines, we recommend that you write and run the commands in the script.
ENTRYPOINT ping https://cloud.tencent.com/ #The commands that run at startup. The last command must be a frontend command that runs constantly. Otherwise, the container will exit after running all commands.

docker build -t nginxos:v1 .  #The single dot (.) specifies the path of the Dockerfile and must be included.

docker images

docker run -d nginxos:v1         #Run the container in the background.
docker ps                        #Check the running container.
docker ps -a                     #Check all containers including those that are not running.
docker logs CONTAINER ID/IMAGE   #Check the startup log to troubleshoot the issue based on the container ID or name if you do not see the container in the returned results

docker commit fb2844b6**** nginxweb:v2 #Add the container ID and the name and version of the new image. after the commit command.
docker images                    #List local images that have been downloaded and created.

docker login #Enter the username and password of the image registry after running the command
docker tag [image name]:[tag] [username]:[tag]
docker push [username]:[tag]