Docker installation and deployment of Net Core implementation process analysis

#Install CentOS and put the Docker package in the Extras software source. You can use it directly: yum install docker-io -y

#View the version of docker
docker -v

#Start the Docker service systemctl start docker.service

#Start the Docker service systemctl enable docker.service

#Check the startup status of the Docker service systemctl status docker.service

#Restart the Docker service systemctl restart docker.service

FROM microsoft/dotnet:2.1-aspnetcore-runtime //Note that your version must match WORKDIR /app
COPY . . //Copy all files in the current directory (except the paths excluded by .dockerignore) to the /app directory of the image file.
EXPOSE 5000 //Port number (expose the container port 5000 to allow external connections to this port.)
//EXPOSE 443 //Https port is opened ENTRYPOINT ["dotnet", "DockerDemo5.dll"] //Change the running assembly to your own 

#Enter the release target of the program cd /data/web/mydocker

#Create an image file (-t parameter is used to specify the name of the image file, and a colon can be used to specify the label after it. PS: Note the last dot)
docker build -t aspnetcoredocker1.1 . 

#Generate a container. Each time you run it, a new container will be created (the 5000:5000 here means mapping port 5000 in the container to port 5000 on your host, with the container port at the end)
docker run -it -p 5000:5000 aspnetcoredocker1.1
#docker run -it -p 5000:5000 aspnetcoredocker1.1:TAG // The default TAG is latest 

# Set the startup strategy docker run --restart always -it -p 5000:5000 aspnetcoredocker1.1

#If the container has been created, we want to change the restart policy of the container docker update --restart always 3ec28be7254a //Container ID


# --restart Multiple parameter values ​​select no to not automatically restart the container. (Default value)
on-failure The container exits when an error occurs (the container exit status is not 0) and restarts the container. You can specify the maximum number of restarts, such as: on-failure:10
Unless-stopped Restart the container only when the container has been stopped or Docker is stopped/restarted. Manual stop does not count. Always Restart the container only when the container has been stopped or Docker is stopped/restarted.

#View all docker images

#Delete an image with imageid docker rmi [IMAE_ID] 

#Delete all images sudo docker rmi $(docker images -q) 


#View the running status of all containers docker ps -a  
docker container ls -all

#Delete a container with containerid (instance)
docker rm 6f0c67de4b72 

#Delete all containers docker rm $(sudo docker ps -a -q)

#View the logs after the specified time, and only display the last 100 lines:
docker logs -f -t --since="2019-06-08" --tail=100 CONTAINER_ID

#View the log after a certain time:
docker logs -t --since="2019-06-08" CONTAINER_ID

#View logs for a certain period of time:
docker logs -t --since="2019-06-08" --until "2019-06-09" CONTAINER_ID

#View the logs for the last 30 minutes:
docker logs --since 30m CONTAINER_ID