Module: Dapp::Dimg::Dapp::Command::CleanupRepo

Included in:
Dapp
Defined in:
lib/dapp/dimg/dapp/command/cleanup_repo.rb

Constant Summary collapse

GIT_TAGS_LIMIT_POLICY = 
10
EXPIRY_DATE_PERIOD_POLICY = 
60 * 60 * 24 * 30

Instance Method Summary collapse

Instance Method Details

#actual_detailed_dimgs_images_by_scheme(registry) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 34

def actual_detailed_dimgs_images_by_scheme(registry)
  {}.tap do |detailed_dimgs_images_by_scheme|
    tagging_schemes.each { |scheme| detailed_dimgs_images_by_scheme[scheme] = [] }
    repo_detailed_dimgs_images(registry).each do |image|
      image_repository = [option_repo, image[:dimg]].compact.join('/')
      image_name = [image_repository, image[:tag]].join(':')

      should_be_ignored = deployed_docker_images.include?(image_name)

      if should_be_ignored
        log "Keep in repo image that is being used in kubernetes: #{image_name}"
        next
      end

      (detailed_dimgs_images_by_scheme[image[:labels]['dapp-tag-scheme']] ||= []) << image
    end
  end
end

#cleanup_repo ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 9

def cleanup_repo
  lock_repo(repo = option_repo) do
    log_step_with_indent(repo) do
      log_step_with_indent("Searching for images being used in kubernetes clusters in one of the kube-config contexts") do
        deployed_docker_images.each do |deployed_img|
          log(deployed_img)
        end
      end

      registry = dimg_registry(repo)

      if git_own_repo_exist?
        cleanup_repo_by_nonexistent_git_primitive(registry, actual_detailed_dimgs_images_by_scheme(registry))
        cleanup_repo_by_policies(registry, actual_detailed_dimgs_images_by_scheme(registry))
      end

      begin
        repo_dimgs      = repo_dimgs_images(registry)
        repo_dimgstages = repo_dimgstages_images(registry)
        repo_dimgstages_cleanup(registry, repo_dimgs, repo_dimgstages)
      end if with_stages?
    end
  end
end

#cleanup_repo_by_nonexistent_git_base(repo_dimgs_images_by_scheme, dapp_tag_scheme) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 77

def cleanup_repo_by_nonexistent_git_base(repo_dimgs_images_by_scheme, dapp_tag_scheme)
  return if repo_dimgs_images_by_scheme[dapp_tag_scheme].empty?
  log_step_with_indent(:"nonexistent #{dapp_tag_scheme.split('_').join(' ')}") do
    repo_dimgs_images_by_scheme[dapp_tag_scheme]
      .select { |dimg_image| dimg_image[:labels]['dapp-tag-scheme'] == dapp_tag_scheme }
      .each { |dimg_image| yield dimg_image }
  end
end

#cleanup_repo_by_nonexistent_git_primitive(registry, detailed_dimgs_images_by_scheme) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 53

def cleanup_repo_by_nonexistent_git_primitive(registry, detailed_dimgs_images_by_scheme)
  %w(git_tag git_branch git_commit).each do |scheme|
    cleanup_repo_by_nonexistent_git_base(detailed_dimgs_images_by_scheme, scheme) do |detailed_dimg_image|
      delete_repo_image(registry, detailed_dimg_image) unless begin
        case scheme
          when 'git_tag'    then consistent_git_tags.include?(detailed_dimg_image[:tag])
          when 'git_branch' then consistent_git_remote_branches.include?(detailed_dimg_image[:tag])
          when 'git_commit' then git_own_repo.commit_exists?(detailed_dimg_image[:tag])
          else
            raise
        end
      end
    end unless detailed_dimgs_images_by_scheme[scheme].empty?
  end
end

#cleanup_repo_by_policies(registry, detailed_dimgs_images_by_scheme) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 86

def cleanup_repo_by_policies(registry, detailed_dimgs_images_by_scheme)
  %w(git_tag git_commit).each_with_object([]) do |scheme, dimgs_images|
    dimgs_images.concat begin
      detailed_dimgs_images_by_scheme[scheme].select do |dimg|
        if scheme == 'git_tag'
          consistent_git_tags.include?(dimg[:tag])
        elsif scheme == 'git_commit'
          git_own_repo.commit_exists?(dimg[:tag])
        end
      end
    end
  end.tap do |detailed_dimgs_images|
    sorted_detailed_dimgs_images = detailed_dimgs_images.sort_by { |dimg| dimg[:created_at] }.reverse
    expired_dimgs_images, not_expired_dimgs_images = sorted_detailed_dimgs_images.partition do |dimg_image|
      dimg_image[:created_at] < expiry_date_policy
    end

    log_step_with_indent(:"date policy (before #{DateTime.strptime(expiry_date_policy.to_s, '%s')})") do
      expired_dimgs_images.each { |dimg| delete_repo_image(registry, dimg) }
    end

    {}.tap do |images_by_dimg|
      not_expired_dimgs_images.each { |dimg| (images_by_dimg[dimg[:dimg]] ||= []) << dimg }
      images_by_dimg.each do |dimg, images|
        log_step_with_indent(:"limit policy (> #{git_tag_limit_policy}) (`#{dimg || "nameless"}` dimg)") do
          images[git_tag_limit_policy..-1].each { |dimg| delete_repo_image(registry, dimg) }
        end unless images[git_tag_limit_policy..-1].nil?
      end
    end
  end
end

#consistent_git_remote_branches ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 73

def consistent_git_remote_branches
  @consistent_git_remote_branches ||= git_own_repo.remote_branches.map(&method(:consistent_uniq_slugify))
end

#consistent_git_tags ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 69

def consistent_git_tags
  git_tag_by_consistent_tag_name.keys
end

#cronjob_images(client) ⇒ Object

cronjob items[] spec jobTemplate spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 208

def cronjob_images(client)
  client.cronjob_list['items'].map do |item|
    item['spec']['jobTemplate']['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#daemonset_images(client) ⇒ Object

daemonsets items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 215

def daemonset_images(client)
  client.daemonset_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#deployed_docker_images ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 148

def deployed_docker_images
  @deployed_docker_images ||= search_deployed_docker_images
end

#deployment_images(client) ⇒ Object

deployment items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 222

def deployment_images(client)
  client.deployment_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#expiry_date_policy ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 118

def expiry_date_policy
  @expiry_date_policy = begin
    expiry_date_period_policy = policy_value('EXPIRY_DATE_PERIOD_POLICY', default: EXPIRY_DATE_PERIOD_POLICY)
    Time.now.to_i - expiry_date_period_policy
  end
end

#git_tag_by_consistent_git_tag(consistent_git_tag) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 140

def git_tag_by_consistent_git_tag(consistent_git_tag)
  git_tag_by_consistent_tag_name[consistent_git_tag]
end

#git_tag_by_consistent_tag_name ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 144

def git_tag_by_consistent_tag_name
  @git_consistent_tags ||= git_own_repo.tags.map { |t| [consistent_uniq_slugify(t), t] }.to_h
end

#git_tag_limit_policy ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 125

def git_tag_limit_policy
  @git_tag_limit_policy ||= policy_value('GIT_TAGS_LIMIT_POLICY', default: GIT_TAGS_LIMIT_POLICY)
end

#job_images(client) ⇒ Object

job items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 229

def job_images(client)
  client.job_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#pod_images(client) ⇒ Object

pod items[] spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 201

def pod_images(client)
  client.pod_list['items'].map do |item|
    item['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#policy_value(env_key, default:) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 129

def policy_value(env_key, default:)
  return default if (val = ENV[env_key]).nil?

  if val.to_i.to_s == val
    val.to_i
  else
    log_warning("WARNING: `#{env_key}` value `#{val}` is ignored (using default value `#{default}`)!")
    default
  end
end

#replicaset_images(client) ⇒ Object

replicasets items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 236

def replicaset_images(client)
  client.replicaset_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#replicationcontroller_images(client) ⇒ Object

replicationcontroller items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 250

def replicationcontroller_images(client)
  client.replicationcontroller_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#search_deployed_docker_images ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 152

def search_deployed_docker_images
  return [] if without_kube?

  config = ::Dapp::Kube::Kubernetes::Config.new_auto_if_available
  return [] if config.nil?

  config.context_names.
    map {|context_name|
      client = ::Dapp::Kube::Kubernetes::Client.new(
        config,
        context_name,
        "default",
        timeout: options[:kubernetes_timeout],
      )
      search_deployed_docker_images_from_kube(client)
    }.flatten.sort.uniq
end

#search_deployed_docker_images_from_kube(client) ⇒ Object 



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 170

def search_deployed_docker_images_from_kube(client)
  namespaces = []
  # check connectivity for 2 seconds
  begin
    namespaces = client.namespace_list(excon_parameters: {:connect_timeout => 30})
  rescue Excon::Error::Timeout
    raise ::Dapp::Error::Default, code: :kube_connect_timeout
  end

  # get images from containers from pods from all namespaces.
  namespaces['items'].map do |item|
    item['metadata']['name']
  end.map do |ns|
    [].tap do |arr|
      client.with_namespace(ns) do
        arr << pod_images(client)
        arr << deployment_images(client)
        arr << replicaset_images(client)
        arr << statefulset_images(client)
        arr << daemonset_images(client)
        arr << job_images(client)
        arr << cronjob_images(client)
        arr << replicationcontroller_images(client)
      end
    end
  end.flatten.select do |img|
    img.start_with? option_repo
  end.sort.uniq
end

#statefulset_images(client) ⇒ Object

replicasets items[] spec template spec containers[] image



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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 243

def statefulset_images(client)
  client.statefulset_list['items'].map do |item|
    item['spec']['template']['spec']['containers'].map{ |cont| cont['image'] }
  end
end

#without_kube? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dapp/dimg/dapp/command/cleanup_repo.rb', line 256

def without_kube?
  !!options[:without_kube]
end