As soon as the process is finished, the container stops and everything inside of it is removed. The host_ip element is optional and you don’t need to specify it when running the command.įor example, to map TCP port 80 in the container to port 8080 on the Docker host you would run: docker container run -p 8080:80 Run a Container and Mount Host Volumesĭocker containers do not save the data they produce. You have to add the -p option to the docker run command as well as the following information: -p :: To allow external connections to the container, you have to open (publish) specific ports. When you run a container, the only way to access the process is from inside of it. Run a Container and Publish Container Ports The command for running a container under a specific name is: docker container run -name įor instance, we can run the sample container and give it the name container_instance using the command: docker container run -name container_instance e98b6ec72f51 Using the -name attribute allows you to assign a container name. Since there is a slim chance you will be able to remember or recognize the containers by these generic names, consider setting the container name to something more memorable. When you use the basic run command, Docker automatically generates a container name with a string of randomly selected numbers and letters.
Although Docker still supports docker run, it recommends getting use to the new syntax. Accordingly, run is now a subcommand of docker container and to use it you must type docker container run. Note: With the release of Docker 1.13, Docker introduced a new CLI in which it regrouped commands according to the object they interact with.
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