It is interactive mode, and we can do whatever we want: "ls", "cd /home" etc, however, it does not give us console, tty. i, -interactive=false Keep STDIN open even if not attached Now it's been removed from our list of containers:Ĥd673944ec59 busybox:latest "sh" 35 minutes ago Exited (0) 14 minutes ago trusting_mccarthy It run in background and we don't see any output. It executed "echo bogotobogo", and then exited. Now, we've created another container which does echo:Ĩ49975841b4e busybox:latest "echo bogotobogo" About a minute ago Exited (0) About a minute ago elegant_goldstineĤd673944ec59 busybox:latest "sh" 29 minutes ago Exited (0) 9 minutes ago trusting_mccarthy $ docker run -it busybox echo 'bogotobogo' But if we're running something else, like an echo command: We can restart and attached to it because it has shell command. So, once we have created a container and it has a command associated with it, that command will always get run when we restart the container.
Now, we know that a container can be restarted, attached, or even be killed!Ĥd673944ec59 busybox:latest "sh" 21 minutes ago Exited (0) About a minute ago trusting_mccarthyīut the one thing we can't do changing the command that's been executed. The docker attach command allows us to attach to a running container using the container's ID or name, either to view its ongoing output or to control it interactively. It will put us back on the shell where we were before:ĭev home lib64 media opt root sbin tmp var The container will remain until it is explicitly deleted. When we execute run command, it will create a new container and execute a command within that container. If we use docker ps -a, it will display all containers even if it's not running:Ĥd673944ec59 busybox:latest "sh" 13 minutes ago Exited (0) 12 minutes ago trusting_mccarthy It's going to execute a shell command in a newly created container, then it will put us on a shell prompt:ĬONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMESīut right now, we don't have any containers running. We're going to use very tiny linux distribution called busybox which has several stripped-down Unix tools in a single executable file and runs in a variety of POSIX environments such as Linux, Android, FreeBSD, etc. The basic syntax for the Docker run command looks like this:
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