What is the difference between Running and Starting a Docker container?
In Docker, the difference between running and starting a container is as follows:
- Running a container means that the container is already started and is currently executing its main process. This can be confirmed by using the command
docker ps, which lists all running containers.
- Starting a container means that the container is not running and needs to be started in order to execute its main process. This can be done using the command
docker start <container_id>.
When you create a new container using the
docker run command, it is automatically started and enters a running state. However, if you stop the container using the
docker stop command, it enters a stopped state and needs to be started again using the
docker start command.
It is also possible to start a container in a detached mode (i.e., in the background) using the
-d option with the
docker run command. This will start the container but will not attach the terminal to it. In this case, you can use the
docker attach command to attach to the running container and interact with it.
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