Class: Awsclean::EcrClean

Inherits:
AwsCommand show all
Defined in:
lib/awsclean/ecr_clean.rb

Constant Summary collapse

SERVICE_IDENTIFIER = 
"ECR"
IMAGE_LIST_HEADER = 
[
  'REGION', 'IN USE?', 'REPOSITORY URI', 'TAGS',
  'IMAGE ID', 'CREATED', 'SIZE', 'ELEGIBLE FOR CLEANUP?'
]
IMAGE_LIST_FORMAT = 
'%-16s%-12s%-64s%-24s%-24s%-42s%-12s%-24s'

Class Method Summary collapse

Methods inherited from AwsCommand

filter_regions, supported_regions

Class Method Details

.run(options) ⇒ Object 



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# File 'lib/awsclean/ecr_clean.rb', line 15

def self.run options
  regions = filter_regions(options[:r])

  if regions.empty?
    puts "Please specify region with -r [regions, e.g., 'all' or 'us-west-1 us-east-1']"
    exit 1
  end

  # List images used in active task definitions from all regions.
  # This is a global operation so we run it once.
  #
  images_in_active_task_defs = supported_regions.flat_map do |region|
    ecs = Aws::ECS::Client.new(region: region)
    res = ecs.list_task_definitions(status: 'ACTIVE', max_results: 100)

    res.task_definition_arns.flat_map do |td|
      ecs.describe_task_definition(task_definition: td)
        .task_definition.container_definitions.map(&:image)
    end
  end

  regions.each do |region|
    puts "[clean_ecr_images] Checking region: #{region}"

    ecr = Aws::ECR::Client.new(region: region)

    # List all image repositories
    #
    res    = ecr.describe_all_repositories
    images = res.repositories.flat_map do |repo|
      ecr.describe_images(repository_name: repo.repository_name)
        .image_details
    end

    images.each do |image|
      image.region = region
      image.in_use = !(images_in_active_task_defs & image.image_uris).empty?
      image.elegible_for_cleanup = (image.stale?(options[:e]) && !image.in_use)
    end

    # We always show a list of images
    #
    print_image_list_header
    images.each { |image| print_image_list_entry(image) }

    if options[:c]
      images_to_delete =
        images.select(&:elegible_for_cleanup).group_by(&:repository_name)

      images_to_delete.each do |repository_name, pack|
        ecr.batch_delete_image(
          repository_name: repository_name,
          image_ids: pack.map { |i| { image_digest: i.image_digest } }
        )
      end
    end
  end
end