1 files changed, 30 insertions, 0 deletions
diff --git a/app/models/dependency_proxy/registry.rb b/app/models/dependency_proxy/registry.rb
new file mode 100644
index 00000000000..471d5be2600
--- /dev/null
+++ b/app/models/dependency_proxy/registry.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class DependencyProxy::Registry
+  AUTH_URL = 'https://auth.docker.io'.freeze
+  LIBRARY_URL = 'https://registry-1.docker.io/v2'.freeze
+
+  class << self
+    def auth_url(image)
+      "#{AUTH_URL}/token?service=registry.docker.io&scope=repository:#{image_path(image)}:pull"
+    end
+
+    def manifest_url(image, tag)
+      "#{LIBRARY_URL}/#{image_path(image)}/manifests/#{tag}"
+    end
+
+    def blob_url(image, blob_sha)
+      "#{LIBRARY_URL}/#{image_path(image)}/blobs/#{blob_sha}"
+    end
+
+    private
+
+    def image_path(image)
+      if image.include?('/')
+        image
+      else
+        "library/#{image}"
+      end
+    end
+  end
+end