What happens to docker container when the process it is running exits?
Table of Contents
- 1 What happens to docker container when the process it is running exits?
- 2 Which flag helps to automatically remove the container when it exits?
- 3 Can I remove docker image after run?
- 4 How do you exit a docker container?
- 5 How do I remove and disable a docker container?
- 6 Can we lose our data when a docker container exits?
What happens to docker container when the process it is running exits?
By default, what happens to a Docker Container when the process it is running exits? The Container reboots and restarts the process.
Which flag helps to automatically remove the container when it exits?
When –rm flag is set, Docker also removes the volumes associated with the container when the container is removed. This is similar to running docker rm -v my-container.
What does removing a docker container do?
When a container is running it consumes CPU, memory and the HDD space associated with this layer. When a stopped container is removed the HDD space is also freed up. Docker also removes all the meta-data(when it was started, where its files are etc) associated with the container when you remove the container.
How do I remove all docker containers?
Procedure
- Stop the container(s) using the following command: docker-compose down.
- Delete all containers using the following command: docker rm -f $(docker ps -a -q)
- Delete all volumes using the following command: docker volume rm $(docker volume ls -q)
- Restart the containers using the following command:
Can I remove docker image after run?
If you know when you’re creating a container that you won’t want to keep it around once you’re done, you can run docker run –rm to automatically delete it when it exits: Run and Remove: docker run –rm image_name.
How do you exit a docker container?
If you want to stop and exit the container, and are in an interactive, responsive shell – press ctrl+d to exit the session. You could as well type the exit command. TL;DR: press ctrl+c then ctrl+d – that means, keep the ctrl key pressed, type a c, and let go of ctrl. Then the same with ctrl and d.
How do I stop docker from running?
Stopping. To stop one or more running Docker containers, you can use the docker stop command. The syntax is simple: $ docker stop [OPTIONS] CONTAINER [CONTAINER…]
How do I stop and remove all docker containers?
Stop and remove all docker containers and images
- List all containers (only IDs) docker ps -aq.
- Stop all running containers. docker stop $(docker ps -aq)
- Remove all containers. docker rm $(docker ps -aq)
- Remove all images. docker rmi $(docker images -q)
How do I remove and disable a docker container?
Procedure to remove data collector Docker container
- Run the following command to remove Docker container: docker stop docker rm
- Optional: Run the following command to remove the container forcefully: docker rm -f < Container_ID>
Can we lose our data when a docker container exits?
No, you won’t lose any data when Docker container exits. Any data that your application writes to the container gets preserved on the disk until you explicitly delete the container. The file system for the container persists even after the container halts.