Handle rspec and rake tasks in runtime identifier

Previously the runtime detector would flag a `RUNTIME IDENTIFICATION
FAILED` warning if application.log if rspec or rake were used.
This change also removes the unnecessary log message.

Closes https://gitlab.com/gitlab-org/gitlab/issues/122656

config/initializers/0_runtime_identify.rb

 # frozen_string_literal: true
 
 begin
-  current_runtime = Gitlab::Runtime.identify
-  Gitlab::AppLogger.info("Process #{Process.pid} (#{$0}) identified as: #{current_runtime}")
-rescue => e
+  Gitlab::Runtime.identify
+rescue Gitlab::Runtime::IdentificationError => e
   message = <<-NOTICE
   \n!! RUNTIME IDENTIFICATION FAILED: #{e}
   Runtime based configuration settings may not work properly.

lib/gitlab/runtime.rb

@@ -4,8 +4,9 @@ module Gitlab
   # Provides routines to identify the current runtime as which the application
   # executes, such as whether it is an application server and which one.
   module Runtime
-    AmbiguousProcessError = Class.new(StandardError)
-    UnknownProcessError = Class.new(StandardError)
+    IdentificationError = Class.new(RuntimeError)
+    AmbiguousProcessError = Class.new(IdentificationError)
+    UnknownProcessError = Class.new(IdentificationError)
 
     class << self
       def identify
@@ -14,6 +15,8 @@ module Gitlab
         matches << :unicorn if unicorn?
         matches << :console if console?
         matches << :sidekiq if sidekiq?
+        matches << :rake if rake?
+        matches << :rspec if rspec?
 
         if matches.one?
           matches.first
@@ -41,6 +44,14 @@ module Gitlab
         !!(defined?(::Sidekiq) && Sidekiq.server?)
       end
 
+      def rake?
+        !!(defined?(::Rake) && Rake.application.top_level_tasks.any?)
+      end
+
+      def rspec?
+        Rails.env.test? && process_name == 'rspec'
+      end
+
       def console?
         !!defined?(::Rails::Console)
       end
@@ -52,6 +63,10 @@ module Gitlab
       def multi_threaded?
         puma? || sidekiq?
       end
+
+      def process_name
+        File.basename($0)
+      end
     end
   end
 end

spec/lib/gitlab/runtime_spec.rb

@@ -3,6 +3,10 @@
 require 'spec_helper'
 
 describe Gitlab::Runtime do
+  before do
+    allow(described_class).to receive(:process_name).and_return('ruby')
+  end
+
   context "when unknown" do
     it "raises an exception when trying to identify" do
       expect { subject.identify }.to raise_error(subject::UnknownProcessError)
@@ -36,6 +40,8 @@ describe Gitlab::Runtime do
       expect(subject.unicorn?).to be(false)
       expect(subject.sidekiq?).to be(false)
       expect(subject.console?).to be(false)
+      expect(subject.rake?).to be(false)
+      expect(subject.rspec?).to be(false)
     end
   end
 
@@ -57,6 +63,8 @@ describe Gitlab::Runtime do
       expect(subject.puma?).to be(false)
       expect(subject.sidekiq?).to be(false)
       expect(subject.console?).to be(false)
+      expect(subject.rake?).to be(false)
+      expect(subject.rspec?).to be(false)
     end
   end
 
@@ -77,6 +85,8 @@ describe Gitlab::Runtime do
       expect(subject.unicorn?).to be(false)
       expect(subject.puma?).to be(false)
       expect(subject.console?).to be(false)
+      expect(subject.rake?).to be(false)
+      expect(subject.rspec?).to be(false)
     end
   end
 
@@ -96,6 +106,26 @@ describe Gitlab::Runtime do
       expect(subject.unicorn?).to be(false)
       expect(subject.sidekiq?).to be(false)
       expect(subject.puma?).to be(false)
+      expect(subject.rake?).to be(false)
+      expect(subject.rspec?).to be(false)
+    end
+  end
+
+  context "rspec" do
+    before do
+      allow(described_class).to receive(:process_name).and_return('rspec')
+    end
+
+    it "identifies itself" do
+      expect(subject.identify).to eq(:rspec)
+      expect(subject.rspec?).to be(true)
+    end
+
+    it "does not identify as others" do
+      expect(subject.unicorn?).to be(false)
+      expect(subject.sidekiq?).to be(false)
+      expect(subject.rake?).to be(false)
+      expect(subject.puma?).to be(false)
     end
   end
 end