Fix rubocop warnings

4 files changed, 3 insertions, 4 deletions

diff --git a/lib/gitlab/metrics/method_call.rb b/lib/gitlab/metrics/method_call.rb
index 0f7ab84a9b4..6d6ecae309b 100644
--- a/lib/gitlab/metrics/method_call.rb
+++ b/lib/gitlab/metrics/method_call.rb
@@ -2,7 +2,7 @@ module Gitlab
   module Metrics
     # Class for tracking timing information about method calls
     class MethodCall
-      BASE_LABELS = { module: nil, method: nil }
+      BASE_LABELS = { module: nil, method: nil }.freeze
       attr_reader :real_time, :cpu_time, :call_count
 
       def self.call_real_duration_histogram
diff --git a/lib/gitlab/metrics/samplers/base_sampler.rb b/lib/gitlab/metrics/samplers/base_sampler.rb
index 50441b514b2..37f90c4673d 100644
--- a/lib/gitlab/metrics/samplers/base_sampler.rb
+++ b/lib/gitlab/metrics/samplers/base_sampler.rb
@@ -62,4 +62,3 @@ module Gitlab
     end
   end
 end
-
diff --git a/lib/gitlab/metrics/samplers/influx_sampler.rb b/lib/gitlab/metrics/samplers/influx_sampler.rb
index 66adc47dcc3..f4f9b5ca792 100644
--- a/lib/gitlab/metrics/samplers/influx_sampler.rb
+++ b/lib/gitlab/metrics/samplers/influx_sampler.rb
@@ -100,4 +100,4 @@ module Gitlab
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/gitlab/metrics/samplers/unicorn_sampler.rb b/lib/gitlab/metrics/samplers/unicorn_sampler.rb
index 686489a07a8..ea325651fbb 100644
--- a/lib/gitlab/metrics/samplers/unicorn_sampler.rb
+++ b/lib/gitlab/metrics/samplers/unicorn_sampler.rb
@@ -47,4 +47,4 @@ module Gitlab
       end
     end
   end
-end
\ No newline at end of file
+end