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Having unnecessary images lying around our host

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can be quite a bother. Firstly, it consumes a lot

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of disk space and having multiple version of

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similar images can cause confusions nonetheless.

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Let's list out our available images.

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[No Audio]

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Just take a look, the list is already exhaustive. Time to

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narrow it down a bit to keep things neat and tidy.

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First, let's use rm or remove command. We will

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remove an image with 1-alpine perl tag.

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As you may remember, these images were pulled as a

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stack of layered intermediate images, so they will

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also be removed similarly.

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All of the intermediate images along with the resultant image will be

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removed from our host. Just to verify how did our command do,

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let's get another list of images

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and we shouldn't find any image with 1-alpine perl tag.

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Another way to write image rm, is to

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simply write rmi and follow it by image id.

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When we use image id instead of image tag, all images

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containing that id will be removed.

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Here, 1-alpine and alpine variants of nginx image

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will be affected by this command.

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On the other hand, such an operation involving id of the image

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which is used more than once cannot be performed normally.

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That's why we are getting this error and

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the suggestion to remove them forcefully, let's do so.

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We will use the same command with --force tag.

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As you may notice, all of the images with this id

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will be freed from that tag

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and they will be removed along with their intermediate images.