How to remove all docker containers
How to remove all docker containers
How to Remove Docker Containers
Containers are awesome when it comes to testing and deploying a project. But containers can quickly eat disk space if you create multiple containers.
In this Docker beginner tutorial, I’ll show you how to remove docker containers.
In the simplest form, you can remove a docker container with the docker rm command:
If you want to remove all containers, stop the running ones first and then remove them:
But you won’t always have a simple life with containers. And this is why I am going to show various scenarios in which you can delete docker containers.
Practical examples of removing docker containers
As you can guess, to remove a container, you need to know its name or ID. You can check all the docker containers on your system (both stopped and running) with the docker ps command like this:
The first column gives container ID and the last column gives container name. You can also notice that the running docker containers have ‘Up’ in the Status column.
Now that you know how to get the container ID and name, let’s see how to remove it:
Remove docker container
This is the simplest. You use the container ID or name in this fashion:
You’ll not get a message like container removed in the output. It just displays the container id or name that your provided.
Remove a running container
If a container is running and you try to remove it, you’ll see an error like this:
Quite clearly, you should stop the docker container first and then remove it:
Force remove a running docker container (not recommended)
This is not recommended because it sends kill command and your container might not save its state.
Remove multiple docker containers
You can specify more than one docker containers while removing:
Remove multiple docker containers associated with a particular docker image
In the example, let’s say you want to remove all the containers associated with docker image ubuntu.
I advise you to stop the containers first:
And then remove these containers:
Remove all stopped containers
If you want to remove all the stopped containers, you can filter them by their status and then stop them in this fashion:
Remove all Docker containers
If you want to remove all containers from your system, you should make sure to stop all containers first and then remove them:
I hope you liked this Docker tutorial. Stay tuned for more.
How to remove all docker containers using a single command
In this guide, we will show command line examples for removing all Docker containers from a Linux system. This will work on any Linux distribution.
Along with removing Docker containers, you’ll also learn how to remove Docker images, volumes, and networks. This is useful when you want to completely purge all traces of containers from your Docker installation and start fresh. Check out the examples below to find out how.
In this tutorial you will learn:
| Category | Requirements, Conventions or Software Version Used |
|---|---|
| System | Any Linux distro |
| Software | Docker |
| Other | Privileged access to your Linux system as root or via the sudo command. |
| Conventions | # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command $ – requires given linux commands to be executed as a regular non-privileged user |
Removing Docker containers command line examples
Note that this command will only work for containers that aren’t running. Otherwise, you will encounter an error like the one below.
Closing Thoughts
In this guide, we saw various examples for removing all Docker containers from a Linux system. This allows you to start fresh very quickly, without fiddling around with removing containers individually. We also learned how to remove Docker images, volumes, and networks, allowing us to clean up our Docker installation even more thoroughly.
Related Linux Tutorials:
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How to Remove All Docker Containers
Requirements:
You must have Docker installed on your computer.
Checkout the articles below to get Docker installed on your desired Linux distribution if you don’t have Docker installed already.
If you still have any problem installing Docker, you may contact me through https://support.linuxhint.com. I will be more than happy to help.
Removing All Running Docker Containers:
You can see a list of all the running Docker containers with the following command:
As you can see, I have 4 Docker containers running.
You can of course remove these containers one by one. That’s not a problem if you have a few containers like I have in this example. But, imaging a production Docker host where you may have thousands of Docker containers running. It will be impractical to remove them one by one. Luckily, you can remove them all very easily.
NOTE: Before you proceed, make sure you don’t have any important running Docker container.
To remove all the running Docker containers, run the following command:
All the running Docker containers should be removed.
As you can see, there are no more running Docker containers.
Removing All Stopped Docker Containers:
On your Docker host, it’s likely that you will have a lot of stopped containers which you don’t need anymore. You can remove these unnecessary containers as well.
You can list all the stopped Docker containers on your Docker host with the following command:
As you can see, all the stopped Docker containers are listed.
Now, to remove all the stopped Docker containers from your Docker host, run the following command:
All the stopped Docker containers should be removed.
As you can see, there are no more stopped Docker container on the list.
Removing All Docker Containers:
You can also remove all the containers on your Docker host regardless of their status (running, stopped, paused etc).
You can list all the Docker containers on your Docker host regardless of their status with the following command:
As you can see, all the containers on my Docker host whether they are running or not are listed.
Now, to remove all of these Docker containers, run the following command:
All the Docker containers on your Docker host should be removed.
So, that’s how you remove all the Docker containers from your Docker host. Thanks for reading this article.
Удаление контейнеров, образов Docker
Руководство по очистке неиспользуемых с контейнерами образов, контейнеров
Docker — программное обеспечение для автоматизации развёртывания и управления приложениями в среде виртуализации на уровне операционной системы. Позволяет «упаковать» приложение со всем его окружением и зависимостями в контейнер, который может быть перенесён на любую Linux-систему с поддержкой cgroups в ядре, а также предоставляет среду по управлению контейнерами.
С руководством по установке Docker можно ознакомиться здесь.
Очистка всех неиспользуемых или не связанных с контейнерами образов, контейнеров
В Docker имеется команда отвечающая за эти действия:
Для того чтобы удалить все остановленные контейнеры и неиспользуемые образы, необходимо добавить в эту команду флаг -a:
Удаление образов Docker
Команда docker images с флагом -a, позволит найти идентификатор удаляемых образов, эта команда покажет вам все образы, включая промежуточные слои образов.
Когда вы определитесь с составом удаляемых образов, вы можете передать их идентификаторы или теги в docker rmi:
Вы можете найти все образы, соответствующие определенному шаблону, используя комбинацию команд docker images и grep.
Вы можете удалить их, используя awk для передачи идентификаторов в docker rmi.
Для вывода всех образов Docker в системе нужно добавить флаг -a в команду docker images.
Если вы хотите удалить все образы, добавьте флаг -q для передачи идентификатора образа в docker rmi:
Удаление контейнеров
Используйте команду docker ps с флагом -a для поиска имен или идентификаторов контейнеров, которые вы хотите удалить:
Запуск и удаление:
Для того чтобы просмотреть список контейнеров, из которых выполнен выход, используйте флаг -f для фильтрации по статусу.
Убедитесь, что вы хотите удалить эти контейнеры, и используйте флаг -q для передачи идентификаторов в команду docker rm.
Фильтры Docker можно комбинировать, повторяя флаг фильтра с дополнительным значением. В результате выводится список контейнеров, соответствующих любому из указанных условий.
Если вы хотите удалить все контейнеры со статусом Created или Exited, то можно использовать несколько фильтров:
Чтобы найти все контейнеры, соответствующие определенному шаблону, используйте сочетание команд docker ps и grep.
Когда вы будете удовлетворены списком удаляемых контейнеров, используйте awk и xargs для передачи идентификаторов в команду docker rmi.
Для просмотра контейнеров в системе используется команда docker ps с флагом -a будет выведен список всех контейнеров.
Если вы хотите удалить их, добавьте флаг -q для передачи их идентификаторов командам docker stop и docker rm:
Если у Вас возникли трудности в настройке или появились дополнительные вопросы, вы всегда можете обращаться в нашу службу поддержки через систему тикетов.
How to Remove All Docker Images, Containers, Volumes, Networks and Unused Resources
Docker is taking the world by storm because it is a valuable open-source platform that allows applications to run without using an actual virtual machine of any kind. This gives users the flexibility to run and test applications in software containers without the need to worry about compatibility, turning your virtual private server into a great development platform.
In this tutorial, we’ll teach you the basic commands every user should know, such as how to remove Docker unused images, containers, volumes, and networks.
Removing All Unused Docker Resources
Important! Remember, first you need to access your VPS using SSH and have Docker installed on your machine.
Docker doesn’t remove any unused data by itself, which can result in cluttering your disk space.
If you’d like to remove all images, containers, and networks that are not associated with a container
This command will remove everything, including dangling images and stopped containers, as the following message will tell you:
Pro Tip
Notice that this will remove dangling Docker images only.
In order to include all unused images, execute the following command:
Here’s the warning message that you’ll see before continuing:
However, the previous two commands will not touch unused volumes – this is done deliberately for safety reasons.
If you’d like to remove that as well, use the following command:
Important! Take note that using both rm and prune commands is not reversible.
How to Remove Docker Images?
In order to view all of your Docker images, you can use:
If you want to remove Docker image or a few, you can use this command and list the IMAGE ID as shown here:
To remove dangling images that are most recent and untagged, we will use the “docker remove all images” command as shown here:
However, to remove Docker images that are present in existent containers that are also tagged, we can use this:
If you wish to remove all images, for example, that may fall under a specific time frame, use the command:
If you to know more about –filter flags, check out the official documentation page.
Pro Tip
In order to force executing any “remove” command at any given time, use the -f or –force flag.
How to Remove Docker Containers?
Similarly to before, in order to see the list of all Docker containers, you will need to run this command:
If you want to remove a specific container, enter the CONTAINER ID as shown in this example:
To remove all the containers that stopped in the application, follow this command:
Take note that this will remove all stopped containers. In order to view the list of what containers will be deleted using the beforementioned command, use the –filter flag:
To limit the removal of containers that stopped, for example, according to the time frame, you can use the following command:
If you want to remove a container once you’re done working with it, you start one by adding a –rm flag. Here’s an example on how to remove such container:
When you’re done, the container will be deleted automatically.
How to Remove Docker Volumes?
Volumes are used for multiple containers and it is very likely there will be a number of either unused or stopped volume files.
These files are not removed automatically, neither is there a setting in Docker to do so as that can cause significant loss or damage of data.
First, to get all Docker volume IDs, use the following command:
If you want to remove a certain volume, use this command followed by the VOLUME NAME:
To remove all unused volumes using a single command, you can use the following:
If Docker volumes have labels attached to them, you can also use this:
In this example, the command will only remove those volume files which are not labeled and assigned with the “keep” label.
How to Remove Docker Networks?
Though Docker networks don’t take much disk space, it can cause some problems if unnecessary files are not cleared from the disk.
One problem is that it creates rules for iptables and bridge networks with routing table entries, which can cause some issues in the long run.
For a full list of NETWORK IDs, use the following command:
In order to remove a specific network, you can use:
If you wish to remove all unsued networks, use the following command:
For a filter based on the time frame, 24 hours in this example, you can simply enter instead:
Pro Tip
If you get an error when trying to remove a certain network, it means that an existing container uses that specific network and will have to be removed before continuing.
Why Use Docker?
Working with Docker allows the app to run more smoothly no matter the system, screen size, or web browser it is being used on. Docker makes it easy to deploy, launch, and then test applications without much difficulty. In short, it is quick, saves time, and easy to learn.
Here are some more examples of why Docker is such a popular container platform.
Conclusion
Nowadays, Docker is gaining considerable momentum and is used by many famous companies worldwide. It is one of the best platforms to date that allows more convenient development solutions, allows unlimited testing and experimentation to create applications quickly and efficiently.
In this tutorial, you’ve learned how to clear unused Docker images, containers, volumes, and networks. If you have any more questions, feel free to leave a comment down below.