diff --git a/GITALY_SERVER_VERSION b/GITALY_SERVER_VERSION
index f34340fc21c..99e0d1ed987 100644
--- a/GITALY_SERVER_VERSION
+++ b/GITALY_SERVER_VERSION
@@ -1 +1 @@
-0.119.0
+0.120.0
diff --git a/changelogs/unreleased/zj-cleanup-port-gitaly.yml b/changelogs/unreleased/zj-cleanup-port-gitaly.yml
new file mode 100644
index 00000000000..25e13b0fd50
--- /dev/null
+++ b/changelogs/unreleased/zj-cleanup-port-gitaly.yml
@@ -0,0 +1,5 @@
+---
+title: Administrative cleanup rake tasks now leverage Gitaly
+merge_request: 21588
+author:
+type: changed
diff --git a/lib/gitlab/gitaly_client/storage_service.rb b/lib/gitlab/gitaly_client/storage_service.rb
index eb0e910665b..3a26dd58ff4 100644
--- a/lib/gitlab/gitaly_client/storage_service.rb
+++ b/lib/gitlab/gitaly_client/storage_service.rb
@@ -5,6 +5,14 @@ module Gitlab
         @storage = storage
       end
 
+      # Returns all directories in the git storage directory, lexically ordered
+      def list_directories(depth: 1)
+        request = Gitaly::ListDirectoriesRequest.new(storage_name: @storage, depth: depth)
+
+        GitalyClient.call(@storage, :storage_service, :list_directories, request)
+          .flat_map(&:paths)
+      end
+
       # Delete all repositories in the storage. This is a slow and VERY DESTRUCTIVE operation.
       def delete_all_repositories
         request = Gitaly::DeleteAllRepositoriesRequest.new(storage_name: @storage)
diff --git a/lib/tasks/gitlab/cleanup.rake b/lib/tasks/gitlab/cleanup.rake
index c8a8863443e..e8ae5dfa540 100644
--- a/lib/tasks/gitlab/cleanup.rake
+++ b/lib/tasks/gitlab/cleanup.rake
@@ -1,40 +1,29 @@
-# Gitaly migration: https://gitlab.com/gitlab-org/gitaly/issues/954
-#
+# frozen_string_literal: true
+require 'set'
+
 namespace :gitlab do
   namespace :cleanup do
-    HASHED_REPOSITORY_NAME = '@hashed'.freeze
-
     desc "GitLab | Cleanup | Clean namespaces"
     task dirs: :gitlab_environment do
-      warn_user_is_not_gitlab
+      namespaces = Set.new(Namespace.pluck(:path))
+      namespaces << Storage::HashedProject::ROOT_PATH_PREFIX
 
-      namespaces = Namespace.pluck(:path)
-      namespaces << HASHED_REPOSITORY_NAME  # add so that it will be ignored
-      Gitlab.config.repositories.storages.each do |name, repository_storage|
-        git_base_path = Gitlab::GitalyClient::StorageSettings.allow_disk_access { repository_storage.legacy_disk_path }
-        all_dirs = Dir.glob(git_base_path + '/*')
+      Gitaly::Server.all.each do |server|
+        all_dirs = Gitlab::GitalyClient::StorageService
+          .new(server.storage)
+          .list_directories(depth: 0)
+          .reject { |dir| dir.ends_with?('.git') || namespaces.include?(File.basename(dir)) }
 
-        puts git_base_path.color(:yellow)
         puts "Looking for directories to remove... "
-
-        all_dirs.reject! do |dir|
-          # skip if git repo
-          dir =~ /.git$/
-        end
-
-        all_dirs.reject! do |dir|
-          dir_name = File.basename dir
-
-          # skip if namespace present
-          namespaces.include?(dir_name)
-        end
-
         all_dirs.each do |dir_path|
           if remove?
-            if FileUtils.rm_rf dir_path
-              puts "Removed...#{dir_path}".color(:red)
-            else
-              puts "Cannot remove #{dir_path}".color(:red)
+            begin
+              Gitlab::GitalyClient::NamespaceService.new(server.storage)
+                .remove(dir_path)
+
+              puts "Removed...#{dir_path}"
+            rescue StandardError => e
+              puts "Cannot remove #{dir_path}: #{e.message}".color(:red)
             end
           else
             puts "Can be removed: #{dir_path}".color(:red)
@@ -49,29 +38,29 @@ namespace :gitlab do
 
     desc "GitLab | Cleanup | Clean repositories"
     task repos: :gitlab_environment do
-      warn_user_is_not_gitlab
-
       move_suffix = "+orphaned+#{Time.now.to_i}"
-      Gitlab.config.repositories.storages.each do |name, repository_storage|
-        repo_root = Gitlab::GitalyClient::StorageSettings.allow_disk_access { repository_storage.legacy_disk_path }
 
-        # Look for global repos (legacy, depth 1) and normal repos (depth 2)
-        IO.popen(%W(find #{repo_root} -mindepth 1 -maxdepth 2 -name *.git)) do |find|
-          find.each_line do |path|
-            path.chomp!
-            repo_with_namespace = path
-              .sub(repo_root, '')
-              .sub(%r{^/*}, '')
-              .chomp('.git')
-              .chomp('.wiki')
+      Gitaly::Server.all.each do |server|
+        Gitlab::GitalyClient::StorageService
+          .new(server.storage)
+          .list_directories
+          .each do |path|
+          repo_with_namespace = path.chomp('.git').chomp('.wiki')
 
-            # TODO ignoring hashed repositories for now.  But revisit to fully support
-            # possible orphaned hashed repos
-            next if repo_with_namespace.start_with?("#{HASHED_REPOSITORY_NAME}/") || Project.find_by_full_path(repo_with_namespace)
+          # TODO ignoring hashed repositories for now.  But revisit to fully support
+          # possible orphaned hashed repos
+          next if repo_with_namespace.start_with?(Storage::HashedProject::ROOT_PATH_PREFIX)
+          next if Project.find_by_full_path(repo_with_namespace)
 
-            new_path = path + move_suffix
-            puts path.inspect + ' -> ' + new_path.inspect
-            File.rename(path, new_path)
+          new_path = path + move_suffix
+          puts path.inspect + ' -> ' + new_path.inspect
+
+          begin
+            Gitlab::GitalyClient::NamespaceService
+              .new(server.storage)
+              .rename(path, new_path)
+          rescue StandardError => e
+            puts "Error occured while moving the repository: #{e.message}".color(:red)
           end
         end
       end
diff --git a/spec/tasks/gitlab/cleanup_rake_spec.rb b/spec/tasks/gitlab/cleanup_rake_spec.rb
index cc2cca10f58..19794227d9f 100644
--- a/spec/tasks/gitlab/cleanup_rake_spec.rb
+++ b/spec/tasks/gitlab/cleanup_rake_spec.rb
@@ -6,6 +6,8 @@ describe 'gitlab:cleanup rake tasks' do
   end
 
   describe 'cleanup namespaces and repos' do
+    let(:gitlab_shell) { Gitlab::Shell.new }
+    let(:storage) { storages.keys.first }
     let(:storages) do
       {
         'default' => Gitlab::GitalyClient::StorageSettings.new(@default_storage_hash.merge('path' => 'tmp/tests/default_storage'))
@@ -17,53 +19,56 @@ describe 'gitlab:cleanup rake tasks' do
     end
 
     before do
-      FileUtils.mkdir(Settings.absolute('tmp/tests/default_storage'))
       allow(Gitlab.config.repositories).to receive(:storages).and_return(storages)
     end
 
     after do
-      FileUtils.rm_rf(Settings.absolute('tmp/tests/default_storage'))
+      Gitlab::GitalyClient::StorageService.new(storage).delete_all_repositories
     end
 
     describe 'cleanup:repos' do
       before do
-        FileUtils.mkdir_p(Settings.absolute('tmp/tests/default_storage/broken/project.git'))
-        FileUtils.mkdir_p(Settings.absolute('tmp/tests/default_storage/@hashed/12/34/5678.git'))
+        gitlab_shell.add_namespace(storage, 'broken/project.git')
+        gitlab_shell.add_namespace(storage, '@hashed/12/34/5678.git')
       end
 
       it 'moves it to an orphaned path' do
-        run_rake_task('gitlab:cleanup:repos')
-        repo_list = Dir['tmp/tests/default_storage/broken/*']
+        now = Time.now
 
-        expect(repo_list.first).to include('+orphaned+')
+        Timecop.freeze(now) do
+          run_rake_task('gitlab:cleanup:repos')
+          repo_list = Gitlab::GitalyClient::StorageService.new(storage).list_directories(depth: 0)
+
+          expect(repo_list.last).to include("broken+orphaned+#{now.to_i}")
+        end
       end
 
       it 'ignores @hashed repos' do
         run_rake_task('gitlab:cleanup:repos')
 
-        expect(Dir.exist?(Settings.absolute('tmp/tests/default_storage/@hashed/12/34/5678.git'))).to be_truthy
+        expect(gitlab_shell.exists?(storage, '@hashed/12/34/5678.git')).to be(true)
       end
     end
 
     describe 'cleanup:dirs' do
       it 'removes missing namespaces' do
-        FileUtils.mkdir_p(Settings.absolute("tmp/tests/default_storage/namespace_1/project.git"))
-        FileUtils.mkdir_p(Settings.absolute("tmp/tests/default_storage/namespace_2/project.git"))
-        allow(Namespace).to receive(:pluck).and_return('namespace_1')
+        gitlab_shell.add_namespace(storage, "namespace_1/project.git")
+        gitlab_shell.add_namespace(storage, "namespace_2/project.git")
+        allow(Namespace).to receive(:pluck).and_return(['namespace_1'])
 
         stub_env('REMOVE', 'true')
         run_rake_task('gitlab:cleanup:dirs')
 
-        expect(Dir.exist?(Settings.absolute('tmp/tests/default_storage/namespace_1'))).to be_truthy
-        expect(Dir.exist?(Settings.absolute('tmp/tests/default_storage/namespace_2'))).to be_falsey
+        expect(gitlab_shell.exists?(storage, 'namespace_1')).to be(true)
+        expect(gitlab_shell.exists?(storage, 'namespace_2')).to be(false)
       end
 
       it 'ignores @hashed directory' do
-        FileUtils.mkdir_p(Settings.absolute('tmp/tests/default_storage/@hashed/12/34/5678.git'))
+        gitlab_shell.add_namespace(storage, '@hashed/12/34/5678.git')
 
         run_rake_task('gitlab:cleanup:dirs')
 
-        expect(Dir.exist?(Settings.absolute('tmp/tests/default_storage/@hashed/12/34/5678.git'))).to be_truthy
+        expect(gitlab_shell.exists?(storage, '@hashed/12/34/5678.git')).to be(true)
       end
     end
   end