From a32d7c61afcfd0544f4e57940df3bad17fa123d1 Mon Sep 17 00:00:00 2001
From: Mahima Singh <105724608+smahima27@users.noreply.github.com>
Date: Wed, 7 Jan 2026 14:47:22 +0530
Subject: [PATCH] Register circuit breaker metrics in Prometheus table

---
 lib/vmpooler/metrics/promstats.rb | 18 ++++++++++++++++++
 lib/vmpooler/pool_manager.rb      |  2 +-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/lib/vmpooler/metrics/promstats.rb b/lib/vmpooler/metrics/promstats.rb
index d0e1ab9..23ec64e 100644
--- a/lib/vmpooler/metrics/promstats.rb
+++ b/lib/vmpooler/metrics/promstats.rb
@@ -353,6 +353,24 @@ module Vmpooler
             torun: %i[manager],
             docstring: 'vmpooler clone metrics',
             param_labels: %i[poolname]
+          },
+          circuit_breaker: {
+            mtype: M_GAUGE,
+            torun: %i[manager],
+            docstring: 'Circuit breaker state and failure tracking',
+            param_labels: %i[metric_path]
+          },
+          connection_pool: {
+            mtype: M_GAUGE,
+            torun: %i[manager],
+            docstring: 'Connection pool health metrics',
+            param_labels: %i[metric_path]
+          },
+          adaptive_timeout: {
+            mtype: M_GAUGE,
+            torun: %i[manager],
+            docstring: 'Adaptive timeout statistics',
+            param_labels: %i[metric_path]
           }
         }
       end
diff --git a/lib/vmpooler/pool_manager.rb b/lib/vmpooler/pool_manager.rb
index fedc697..0580d33 100644
--- a/lib/vmpooler/pool_manager.rb
+++ b/lib/vmpooler/pool_manager.rb
@@ -1300,7 +1300,7 @@ module Vmpooler
 
           health = pool.health_status
 
-          # Push metrics
+          # Push metrics using metric_path pattern
           $metrics.gauge("connection_pool.#{provider_name}.available", health[:available])
           $metrics.gauge("connection_pool.#{provider_name}.in_use", health[:in_use])
           $metrics.gauge("connection_pool.#{provider_name}.utilization", health[:utilization])