Module: Docklean::Images

Included in:
Docklean
Defined in:
lib/docklean/images.rb

Instance Method Summary collapse

Instance Method Details

#cleanup_images ⇒ Object 



28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/docklean/images.rb', line 28

def cleanup_images()
    # loop over all images, do not process duplicates, delete when not needed
    %x{#{@docker_bin} images -q --no-trunc=true}.split(/\n/).uniq.each do |image|
        if @images_to_keep.include?(image.chomp) then
            # do not delete this image
        else
            # safe to delete this image
            puts "info: deleting #{image.chomp} (image)"
            %x{#{@docker_bin} rmi #{image.chomp}}
        end
    end
    # cleanup dangling images (<none>)
    self.delete_dangling()
end

#delete_dangling ⇒ Object 



21
22
23
24
25
26
 
# File 'lib/docklean/images.rb', line 21

def delete_dangling()
    unless %x{#{@docker_bin} images -q -f dangling=true}.to_s.empty? then
        puts "info: deleting dangling images"
        %x{#{@docker_bin} rmi $(#{@docker_bin} images -q -f dangling=true)}
    end
end