From 9764481e5b37d3e80667024a11feec1266d565ae Mon Sep 17 00:00:00 2001
From: Prathamesh Musale <prathamesh.musale0@gmail.com>
Date: Thu, 4 Jul 2024 15:35:20 +0530
Subject: [PATCH] Use external head for subgraph deployment alerts

---
 .../data/config/monitoring/subgraph-alert-rules.yml             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stack_orchestrator/data/config/monitoring/subgraph-alert-rules.yml b/stack_orchestrator/data/config/monitoring/subgraph-alert-rules.yml
index ed59e8ef..23ff39a2 100644
--- a/stack_orchestrator/data/config/monitoring/subgraph-alert-rules.yml
+++ b/stack_orchestrator/data/config/monitoring/subgraph-alert-rules.yml
@@ -19,7 +19,7 @@ groups:
                   type: prometheus
                   uid: PBFA97CFB590B2093
               editorMode: code
-              expr: ethereum_chain_head_number - on(network) group_right deployment_head{deployment=~"REPLACE_WITH_SUBGRAPH_IDS"}
+              expr: label_replace(latest_block_number{instance="external"}, "network", "$1", "chain", "(.*)") - on(network) group_right deployment_head{deployment=~"REPLACE_WITH_SUBGRAPH_IDS"}
               instant: true
               intervalMs: 1000
               legendFormat: __auto