Does the feature of "Garbage Collection" exist in Docker?

0 votes
I've been working quite a bit with Docker these last few weeks and one thing that I found really annoying was all these unused containers and images taking up precious disk space.

I wish Docker has a command that would perhaps work like a garbage collector and remove all the unused resources( images, containers,volumes,network and other such dangling resources) Is there any way I could achieve this objective?
Jul 2 in Docker by Sam
• 1,520 points
135 views

1 answer to this question.

0 votes

Yes you can clean up resources in docker all at once.Docker takes a conservative approach to cleaning up unused objects (often referred to as “garbage collection”), such as images, containers, volumes, and networks: these objects are generally not removed unless you explicitly ask Docker to do so. This can cause Docker to use extra disk space. For each type of object, Docker provides a prune command. In addition, you can use docker system prune to clean up multiple types of objects at once. 

The docker system prune command is a shortcut that prunes images, containers, and networks. In Docker 17.06.0 and earlier, volumes are also pruned. In Docker 17.06.1 and higher, you must specify the --volumes flag for docker system prune to prune volumes.

The command is :

docker system prune [OPTIONS]
--all , -a Remove all unused images not just dangling ones
--filter API 1.28+
Provide filter values (e.g. ‘label==')
--force , -f Do not prompt for confirmation
--volumes Prune volumes

Here's  an example: 

answered Jul 2 by Sirajul
• 25,180 points

Related Questions In Docker

0 votes
0 answers

what is the use of docker history command in Docker?

I am trying to find the initial ...READ MORE

Jun 19 in Docker by Shubham
• 1,000 points
26 views
0 votes
1 answer

What is the difference between “expose” and “publish” in Docker?

Basically, you have three options: Neither specify EXPOSE nor -p -> ...READ MORE

answered Jul 18, 2018 in Docker by Nilesh
• 6,880 points
317 views
0 votes
2 answers

How can I inspect the file system of a failed `docker build

Failed command is a build that has ...READ MORE

answered Aug 6, 2018 in Docker by Nilesh
• 6,880 points
75 views
0 votes
1 answer
0 votes
1 answer

Deploy Docker Containers from Docker Cloud

To solve this problem, I followed advice ...READ MORE

answered Sep 3, 2018 in AWS by Priyaj
• 56,520 points
150 views
0 votes
2 answers

How do I fix the “no space left on device” error in docker?

Try cleaning up: $ docker volume rm $(docker ...READ MORE

answered Aug 14 in Docker by Sirajul
• 25,180 points
1,437 views
0 votes
2 answers