Class: Ufo::Docker::Cleaner
- Inherits:
-
Object
- Object
- Ufo::Docker::Cleaner
- Includes:
- Utils::Execute, Utils::Logging
- Defined in:
- lib/ufo/docker/cleaner.rb
Instance Method Summary collapse
- #cleanup ⇒ Object
- #delete_list ⇒ Object
-
#initialize(docker_image_name, options) ⇒ Cleaner
constructor
A new instance of Cleaner.
Methods included from Utils::Logging
Methods included from Utils::Execute
Constructor Details
#initialize(docker_image_name, options) ⇒ Cleaner
Returns a new instance of Cleaner.
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# File 'lib/ufo/docker/cleaner.rb', line 6 def initialize(docker_image_name, ) # docker_image_name does not containg the tag # Example: 123456789.dkr.ecr.us-east-1.amazonaws.com/image @docker_image_name = docker_image_name @options = @keep = Ufo.config.docker.clean_keep @tag_prefix = [:tag_prefix] || "ufo" end |
Instance Method Details
#cleanup ⇒ Object
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# File 'lib/ufo/docker/cleaner.rb', line 15 def cleanup return if @keep.nil? return if delete_list.empty? command = "docker rmi #{delete_list}" logger.info "Cleaning docker images" return if @options[:noop] execute(command, quiet: true) end |
#delete_list ⇒ Object
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# File 'lib/ufo/docker/cleaner.rb', line 24 def delete_list return if @keep.nil? return [] if ENV['TEST'] || @options[:noop] return @delete_list if @delete_list out = execute("docker images") # live to override the noop cli options name_regexp = Regexp.new(@docker_image_name) # Example tag: ufo-2016-10-19T00-36-47-211b63a tag_string = "#{@tag_prefix}-\\d{4}-\\d{2}-\\d{2}T\\d{2}-\\d{2}-\\d{2}-.{7}" tag_regexp = Regexp.new(tag_string) filtered_out = out.split("\n").select do |line| name,tag = line.split(' ') name =~ name_regexp && tag =~ tag_regexp end = filtered_out.map { |l| l.split(' ')[1] } # 2nd column is tag = .sort.reverse # ordered by most recent images first = [@keep..-1] if .nil? @delete_list = [] else @delete_list = .map { |t| "#{@docker_image_name}:#{t}" }.join(' ') end end |