From 39dbe5f0f96ba0482ef553c36d7543dadaa8516e Mon Sep 17 00:00:00 2001
From: Chris Kalafarski <chris@farski.com>
Date: Mon, 16 Oct 2023 14:07:29 -0400
Subject: [PATCH] Adds redirect to Metrics host-header rule

---
 spire/templates/apps-300A.yml    |  2 ++
 spire/templates/apps/metrics.yml | 22 ++++++++++++++++++++++
 spire/templates/root.yml         |  1 +
 3 files changed, 25 insertions(+)

diff --git a/spire/templates/apps-300A.yml b/spire/templates/apps-300A.yml
index c3609ac64..0fce792f1 100644
--- a/spire/templates/apps-300A.yml
+++ b/spire/templates/apps-300A.yml
@@ -46,6 +46,7 @@ Parameters:
   AdFilesHostname: { Type: String }
   AuguryHostname: { Type: String }
   FeederHostname: { Type: String }
+  MetricsHostname: { Type: String }
   DovetailCdnHostname: { Type: String }
   CmsHostname: { Type: String }
   TheCountHostname: { Type: String }
@@ -207,6 +208,7 @@ Resources:
         CloudWatchAlarmTaggerServiceToken: !Ref CloudWatchAlarmTaggerServiceToken
         CastleHostname: !Ref CastleHostname
         IdHostname: !Ref IdHostname
+        MetricsHostname: !Ref MetricsHostname
       Tags:
         - { Key: prx:meta:tagging-version, Value: "2021-04-07" }
         - { Key: prx:cloudformation:stack-name, Value: !Ref AWS::StackName }
diff --git a/spire/templates/apps/metrics.yml b/spire/templates/apps/metrics.yml
index 3cc1c2014..a7facdccb 100644
--- a/spire/templates/apps/metrics.yml
+++ b/spire/templates/apps/metrics.yml
@@ -27,9 +27,11 @@ Parameters:
   AlbListenerRulePriorityPrefix: { Type: String }
   CastleHostname: { Type: String }
   IdHostname: { Type: String }
+  MetricsHostname: { Type: String }
 
 Conditions:
   IsProduction: !Equals [!Ref EnvironmentType, Production]
+  IsStaging: !Equals [!Ref EnvironmentType, Staging]
 
 Resources:
   HostHeaderListenerRule:
@@ -46,6 +48,7 @@ Resources:
       Priority: !Join ["", [!Ref AlbListenerRulePriorityPrefix, "00"]]
   AltHostHeaderListenerRule:
     Type: AWS::ElasticLoadBalancingV2::ListenerRule
+    Condition: IsProduction
     Properties:
       Actions:
         - TargetGroupArn: !Ref TargetGroup
@@ -56,6 +59,25 @@ Resources:
             - metrics.*
       ListenerArn: !Ref AlbHttpsListenerArn
       Priority: !Join ["", [!Ref AlbListenerRulePriorityPrefix, "01"]]
+  RedirectHostHeaderListenerRule:
+    Type: AWS::ElasticLoadBalancingV2::ListenerRule
+    Condition: IsStaging
+    Properties:
+      Actions:
+        - RedirectConfig:
+            Host: !Ref MetricsHostname
+            Path: "/#{path}"
+            Port: "#{port}"
+            Protocol: "#{protocol}"
+            Query: "#{query}"
+            StatusCode: "HTTP_301"
+          Type: redirect
+      Conditions:
+        - Field: host-header
+          Values:
+            - metrics.*
+      ListenerArn: !Ref AlbHttpsListenerArn
+      Priority: !Join ["", [!Ref AlbListenerRulePriorityPrefix, "02"]]
 
   TargetGroup:
     Type: AWS::ElasticLoadBalancingV2::TargetGroup
diff --git a/spire/templates/root.yml b/spire/templates/root.yml
index 87c1f9796..b190f667f 100644
--- a/spire/templates/root.yml
+++ b/spire/templates/root.yml
@@ -768,6 +768,7 @@ Resources:
         AdFilesHostname: !GetAtt Constants2.Outputs.AdFilesHostname
         AuguryHostname: !GetAtt Constants2.Outputs.AuguryHostname
         FeederHostname: !GetAtt Constants2.Outputs.FeederHostname
+        MetricsHostname: !GetAtt Constants2.Outputs.MetricsHostname
         CmsHostname: !GetAtt Constants2.Outputs.CmsHostname
         DovetailCdnHostname: !GetAtt Constants2.Outputs.DovetailCdnHostname
         DovetailRouterHostname: !GetAtt Constants2.Outputs.DovetailRouterHostname