What are the options for pruning Docker images?
You can use the docker image prune
command to remove unused images. The main options include:
-a
or --all
: Remove all unused images, not just dangling ones.--filter
: Filter images based on conditions like age or label.--force
: Bypass the confirmation prompt.What does the --filter
option do?
The --filter
option allows you to specify criteria for which images to prune. For example, you can filter by age using until=<timestamp>
or by label using label=<key>=<value>
.
Can I see a list of images that will be pruned before actually removing them?
Yes, you can use the docker images
command with appropriate filters to see which images are unused before pruning. This way, you can review them.
Is there a way to automate this pruning process?
Yes, you can automate the pruning process by scheduling the docker image prune
command using cron jobs or similar scheduling tools.
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