971a91da15
Time based container and image retention can have variable space requirements depending on how often we deploy. - Only prune stopped containers, retaining the 5 newest - Then prune dangling images so we only keep images for the retained containers.
21 lines
682 B
Ruby
21 lines
682 B
Ruby
require "active_support/duration"
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require "active_support/core_ext/numeric/time"
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class Mrsk::Commands::Prune < Mrsk::Commands::Base
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def images
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docker :image, :prune, "--all", "--force", "--filter", "label=service=#{config.service}", "--filter", "dangling=true"
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end
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def containers(keep_last: 5)
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pipe \
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docker(:ps, "-q", "-a", "--filter", "label=service=#{config.service}", *stopped_containers_filters),
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"tail -n +#{keep_last + 1}",
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"while read container_id; do docker rm $container_id; done"
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end
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private
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def stopped_containers_filters
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[ "created", "exited", "dead" ].flat_map { |status| ["--filter", "status=#{status}"] }
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end
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end
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