What are dangling images in Docker?
Probably if you worked with docker locally, it happened to see something like this using `docker images`
The dangling images are those ones with <none> as [Repository] and [Tag]
Ugly uh?
Let me explain what's going on:
Probably if you worked with docker locally, it happened to see something like this using `docker images`
The dangling images are those ones with <none> as [Repository] and [Tag]
Ugly uh?
Let me explain what's going on:
A dangling image is one that is not tagged and is not referenced by any container.
Why are they there?
Reasons could be different, but the most common case is when you build another image using the same tag
(Side note: don't build a production-ready image with the same tag)
Why are they there?
Reasons could be different, but the most common case is when you build another image using the same tag
(Side note: don't build a production-ready image with the same tag)
To see just the dangling images on your system, you can use the command:
`docker images -f dangling=true`
what a good show, right?
`docker images -f dangling=true`
what a good show, right?
Dangling images are useless.
To remove all the dangling images, you have different options:
`docker image prune`
which replaces the old one
`docker rmi -f $(docker images -f "dangling=true" -q)`
To remove all the dangling images, you have different options:
`docker image prune`
which replaces the old one
`docker rmi -f $(docker images -f "dangling=true" -q)`
Now it looks better.
Please notice that dangling images are not unused images
Unused images are images with repository and tag, but not used by any container.
To remove unused images along with the dangling ones, you can use `docker image prune -a`
Please notice that dangling images are not unused images
Unused images are images with repository and tag, but not used by any container.
To remove unused images along with the dangling ones, you can use `docker image prune -a`
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