Merge pull request #6743 from FireLemons/performance_monitoring

correct gc stats not coming from web server process

Author: FireLemons

app/controllers/health_controller.rb

@@ -1,6 +1,7 @@
 class HealthController < ApplicationController
   skip_before_action :authenticate_user!
   skip_after_action :verify_authorized
+  before_action :verify_token_for_gc_stats, only: [:gc]
 
   def index
     respond_to do |format|
@@ -12,6 +13,14 @@ def index
     end
   end
 
+  def gc
+    render body: JSON.pretty_generate([
+      Time.now.in_time_zone("Central Time (US & Canada)").strftime("%H"),
+      GC.stat
+    ]),
+      content_type: "application/json"
+  end
+
   def case_contacts_creation_times_in_last_week
     case_contacts_created_in_last_week = CaseContact.where("created_at >= ?", 1.week.ago)
 
@@ -67,4 +76,12 @@ def monthly_unique_users_graph_data
 
     render json: monthly_line_graph_combined_data
   end
+
+  private
+
+  def verify_token_for_gc_stats
+    gc_access_token = ENV["GC_ACCESS_TOKEN"]
+
+    head :forbidden unless params[:token] == gc_access_token && !gc_access_token.nil?
+  end
 end

config/routes.rb

@@ -43,6 +43,7 @@
   resources :health, only: %i[index] do
     collection do
       get :case_contacts_creation_times_in_last_week
+      get :gc
       get :monthly_line_graph_data
       get :monthly_unique_users_graph_data
     end

lib/tasks/post_gc_stat_to_discord.rake

@@ -1,13 +1,21 @@
 desc "Post gc stats to discord channel"
 
 task post_gc_stat_to_discord: :environment do
-  stats = GC.stat
+  require "net/http"
+
+  url = URI("https://casavolunteertracking.org/health/gc?token=#{ENV["GC_ACCESS_TOKEN"]}")
+  response = Net::HTTP.get_response(url)
+
+  unless response.is_a?(Net::HTTPSuccess)
+    raise "Failed to fetch GC stats. HTTP status code:#{response.code}"
+  end
+
+  stats = response.body
 
   unless ENV["DISCORD_WEBHOOK_URL"].nil?
-    formatted_stats = JSON.pretty_generate(stats)
     discord_message = <<~MULTILINE
       ```json
-      #{formatted_stats}
+      #{stats}
       ```
     MULTILINE