1 files changed, 36 insertions, 0 deletions
diff --git a/lib/gitlab/ci/config/entry/product/variables.rb b/lib/gitlab/ci/config/entry/product/variables.rb
new file mode 100644
index 00000000000..ac4f70fb69e
--- /dev/null
+++ b/lib/gitlab/ci/config/entry/product/variables.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    class Config
+      module Entry
+        ##
+        # Entry that represents variables for parallel matrix builds.
+        #
+        module Product
+          class Variables < ::Gitlab::Config::Entry::Node
+            include ::Gitlab::Config::Entry::Validatable
+
+            validations do
+              validates :config, variables: { array_values: true }
+              validates :config, length: {
+                minimum: 2,
+                too_short: 'requires at least %{count} items'
+              }
+            end
+
+            def self.default(**)
+              {}
+            end
+
+            def value
+              @config
+                .map { |key, value| [key.to_s, Array(value).map(&:to_s)] }
+                .to_h
+            end
+          end
+        end
+      end
+    end
+  end
+end