What is the difference between starting and running Docker?
Run is only used when running for the first time. Put the image into the container. When you start the container again in the future, you only need to use the command "docker start". The function of starting is: Restart an existing image.
Test
For example, my docker has an image of the springboot project
Then I use the docker run command to start it, and docker ps can Seeing that a springboot container has been started, then we stop it (docker stop)
Then use docker start to start it, and then use docker ps to see that the previously stopped one has been started
[root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE springbootdocker latest 5fe8370f7f83 25 hours ago 677 MB daocloud.io/rabbitmq 3-management 1d0a5c8a8d4e 4 weeks ago 177 MB daocloud.io/library/tomcat latest 89481b5d9082 7 weeks ago 506 MB daocloud.io/library/mysql 5.5 d404d78aa797 3 months ago 205 MB daocloud.io/library/java latest d23bdf5b1b1b 2 years ago 643 MB docker.io/java 8 d23bdf5b1b1b 2 years ago 643 MB [root@localhost ~]# docker run --name springboot -p 8080:8080 -d 5f dd100a4c60a7a6606244873bc61a8a6f419361ab78fcd038d4baef3f38f05157 [root@localhost ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES dd100a4c60a7 5f "java -Djava.secur..." 19 seconds ago Up 18 seconds 0.0.0.0:8080->8080/tcp springboot [root@localhost ~]# docker stop dd dd [root@localhost ~]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES dd100a4c60a7 5f "java -Djava.secur..." 39 seconds ago Exited (143) 3 seconds ago springboot f3b181616dac 1d0a5c8a8d4e "docker-entrypoint..." 3 weeks ago Exited (255) 2 weeks ago 4369/tcp, 5671-5672/tcp, 0.0.0.0:5762->5762/tcp, 15671/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp myrabbit0 ea0a9cb0fe2f 89481b5d9082 "catalina.sh run" 4 weeks ago Exited (129) 4 weeks ago clever_leakey [root@localhost ~]# docker start dd dd [root@localhost ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES dd100a4c60a7 5f "java -Djava.secur..." About a minute ago Up 2 seconds 0.0.0.0:8080->8080/tcp springboot [root@localhost ~]#
Recommended tutorial: "Docker"
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