Refactor parallelization implementation

* Move the variables to ::Ci::Build#predefined_variables
* Tweak pipeline build seed implementation

1 files changed, 6 insertions, 0 deletions

diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index cdfe8175a42..21e2f289e1e 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -801,10 +801,16 @@ module Ci
         variables.append(key: "CI_COMMIT_TAG", value: ref) if tag?
         variables.append(key: "CI_PIPELINE_TRIGGERED", value: 'true') if trigger_request
         variables.append(key: "CI_JOB_MANUAL", value: 'true') if action?
+        variables.append(key: "CI_NODE_INDEX", value: node_index.to_s) if self.options[:parallel]
+        variables.append(key: "CI_NODE_TOTAL", value: self.options.fetch(:parallel, 1).to_s)
         variables.concat(legacy_variables)
       end
     end
 
+    def node_index
+      name.match(%r{(\d+)/\d+$}).captures[0]
+    end
+
     def gitlab_version_info
       @gitlab_version_info ||= Gitlab::VersionInfo.parse(Gitlab::VERSION)
     end