Module: Docklean::Containers

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

Instance Method Summary collapse

Instance Method Details

#cleanup_containers ⇒ Object 



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# File 'lib/docklean/containers.rb', line 38

def cleanup_containers()
    @images_to_keep = Array.new()
    self.get_containers()
    @containers.each do |container,meta|
        case meta[:is_running].chomp
            when 'false'
                # check it's older than MAX_AGE
                if meta[:age] >= @max_age then
                    # only remove container if it doesn't match keep_filter, or if keep_filter is empty
                    if ! meta[:name].match(%r{#{self.get_conf('keep_filter')}}) or self.get_conf('keep_filter').to_s.empty?() then
                        %x{#{@docker_bin} rm #{container.to_s.chomp}}
                        puts "info: deleting #{container.to_s.chomp} (container)"
                    else
                        # do not delete this image_id
                        @images_to_keep.push(meta[:image_id])
                    end
                else
                    # do not delete this image_id
                    @images_to_keep.push(meta[:image_id])
                    puts "info: #{container} (container) not old enough, do not delete #{meta[:image_id]} (image)"
                end
            when 'true'
                # do not delete this image_id
                @images_to_keep.push(meta[:image_id])
                puts "info: #{meta[:image_id]} (image) in use by #{container} (container) do not delete"
        end
    end
end

#get_containers ⇒ Object 



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# File 'lib/docklean/containers.rb', line 21

def get_containers()
    @containers = Hash.new()
    %x{#{@docker_bin} ps --no-trunc=true -q -a}.split(/\n/).each do |container|
        container.chomp()
        name,image_id,is_running,start_at,end_at = %x{#{@docker_bin} inspect --format "{{.Name}};{{.Image}};{{.State.Running}};{{.State.StartedAt}};{{.State.FinishedAt}}" #{container}}.split(/;/)
        @containers[container.to_sym] = {
            :name => name.gsub(/^\//,''),
            :image_id => image_id.chomp(),
            :is_running => is_running.chomp(),
            :start_at => DateTime.parse(start_at.chomp().to_s).strftime('%s'),
            :end_at => DateTime.parse(end_at.chomp().to_s).strftime('%s'),
            :run_time => (DateTime.parse(end_at.chomp().to_s).strftime('%s').to_i - DateTime.parse(start_at.chomp().to_s).strftime('%s').to_i),
            :age => (Time.now.to_i - DateTime.parse(start_at.chomp().to_s).strftime('%s').to_i)
        }
    end
end