Ensure database metrics are added as floats.

lib/gitlab_exporter/database/bloat.rb

@@ -60,7 +60,7 @@ module GitLab
         def probe_for_type(type)
           collector.run(type).each do |query_name, data|
             METRIC_KEYS.each do |key|
-              metrics.add("gitlab_database_bloat_#{type}_#{key}", data[key], query_name: query_name)
+              metrics.add("gitlab_database_bloat_#{type}_#{key}", data[key].to_f, query_name: query_name)
             end
           end
 

lib/gitlab_exporter/database/ci_builds.rb

@@ -463,7 +463,7 @@ module GitLab
               other_values[key] ||= 0
               other_values[key] += metric[:value]
             else
-              add_ci_created_pending_builds(metric_name, metric[:value], metric)
+              add_ci_created_pending_builds(metric_name, metric[:value].to_f, metric)
             end
           end
 
@@ -479,7 +479,7 @@ module GitLab
         end
 
         def ci_stale_builds_metrics
-          @metrics.add("ci_stale_builds", @results[:stale_builds])
+          @metrics.add("ci_stale_builds", @results[:stale_builds].to_f)
         end
 
         def metrics_per_runner
@@ -519,19 +519,19 @@ module GitLab
           labels[:namespace] = "" unless labels[:namespace]
 
           selected_labels = labels.select { |k, _| allowed_labels.include?(k) }.sort.to_h
-          @metrics.add(metric_name, value, selected_labels)
+          @metrics.add(metric_name, value.to_f, selected_labels)
         end
 
         def repeated_commands_metrics
           @results[:repeated_commands].each do |metric|
             value = metric.delete(:value)
 
-            @metrics.add("ci_repeated_commands_builds", value, metric)
+            @metrics.add("ci_repeated_commands_builds", value.to_f, metric)
           end
         end
 
         def unarchived_traces_metrics
-          @metrics.add("ci_unarchived_traces", @results[:unarchived_traces])
+          @metrics.add("ci_unarchived_traces", @results[:unarchived_traces].to_f)
         end
       end
     end

lib/gitlab_exporter/database/remote_mirrors.rb

@@ -48,13 +48,13 @@ module GitLab
           results.to_a.each do |row|
             @metrics.add(
               "project_remote_mirror_last_successful_update_time_seconds",
-              row["last_successful_update_at"].to_i,
+              row["last_successful_update_at"].to_f,
               project_id: row["project_id"],
               url: row["url"]
             )
             @metrics.add(
               "project_remote_mirror_last_update_time_seconds",
-              row["last_update_at"].to_i,
+              row["last_update_at"].to_f,
               project_id: row["project_id"],
               url: row["url"]
             )

lib/gitlab_exporter/database/row_count.rb

@@ -147,7 +147,7 @@ module GitLab
         def probe_db
           results = @collector.run
           results.each do |key, value|
-            @metrics.add("gitlab_database_rows", value.to_i, query_name: key.to_s)
+            @metrics.add("gitlab_database_rows", value.to_f, query_name: key.to_s)
           end
 
           self

lib/gitlab_exporter/database/tuple_stats.rb

@@ -36,7 +36,7 @@ module GitLab
           result.each do |table_name, tuple_stats|
             tuple_stats.each do |column_name, value|
               @metrics.add("gitlab_database_stat_table_#{column_name}",
-                           value,
+                           value.to_f,
                            table_name: table_name) unless value.is_a?(Numeric)
             end
           end