WEBVTT

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-: In the last section I had mentioned that I'd cleared out

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all the stopped containers on my machine,

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and so I thought you might be curious on how I did that.

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If I run docker ps --all right now,

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I can see that I currently have two stopped containers.

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So these containers right now are essentially

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just taking up disk space on my computer,

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and so it might be to my advantage

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to try to entirely delete them

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and not just leave them in this stopped state.

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To delete all these containers,

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I can run docker system prune.

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I'll then be presented with a warning here.

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So just to be clear,

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this is not only going to delete stopped containers,

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it's also going to delete a couple of other items as well,

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most notably your build cache.

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The build cache is any image

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that you have fetched from Docker Hub.

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So after running docker prune

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you will have to re-download images from Docker Hub,

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which is not a really big deal.

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Just be aware that you're gonna have to wait

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a couple of minutes the next time you start up a container.

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Not really a couple minutes, but a couple of seconds really.

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So we can enter in "yes", hit Enter,

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and then it will tell us about the deleted containers

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and it'll tell me also how much space

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has been reclaimed by deleting those resources.

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If I then do another docker ps --all,

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I'll see that I do not have

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any stopped containers whatsoever.

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I really recommend you keep

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the docker system prune command in mind,

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because anytime that you're kind of done working with docker

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for a period of weeks or months,

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or if you decide you just don't wanna work

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with docker again at all,

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you will want to run this command to delete any containers

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that are still just kind of sitting around

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eating up disk space.

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All right, let's take another quick break,

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and we'll continue in the next section.