From 5ead49e43e1f465a2d57f01581bcb762c78fed56 Mon Sep 17 00:00:00 2001
From: Viktor Barzin <viktorbarzin@meta.com>
Date: Sat, 14 Mar 2026 21:12:44 +0000
Subject: [PATCH] scale down unused/over-replicated services

- osm-routing (otp, osrm-bicycle, osrm-foot): replicas=0, 0Mi actual usage
- dashy: replicas=0, redundant with homepage
- echo: 5 -> 1 replica
- networking-toolbox: 3 -> 1 replica
- travel-blog: 3 -> 1 replica
- blog: 3 -> 1 replica

Saves ~3.5Gi memory requests.
---
 stacks/blog/main.tf               | 2 +-
 stacks/dashy/main.tf              | 3 ++-
 stacks/echo/main.tf               | 2 +-
 stacks/networking-toolbox/main.tf | 2 +-
 stacks/osm_routing/main.tf        | 9 ++++++---
 stacks/travel_blog/main.tf        | 2 +-
 6 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/stacks/blog/main.tf b/stacks/blog/main.tf
index 237e56b3..ac9a88d7 100644
--- a/stacks/blog/main.tf
+++ b/stacks/blog/main.tf
@@ -30,7 +30,7 @@ resource "kubernetes_deployment" "blog" {
     }
   }
   spec {
-    replicas = 3
+    replicas = 1
     selector {
       match_labels = {
         run = "blog"
diff --git a/stacks/dashy/main.tf b/stacks/dashy/main.tf
index 1fe9e142..77295cfc 100644
--- a/stacks/dashy/main.tf
+++ b/stacks/dashy/main.tf
@@ -48,7 +48,8 @@ resource "kubernetes_deployment" "dashy" {
     }
   }
   spec {
-    replicas = 1
+    # Disabled: reduce cluster memory pressure (2026-03-14 OOM incident)
+    replicas = 0
     selector {
       match_labels = {
         app = "dashy"
diff --git a/stacks/echo/main.tf b/stacks/echo/main.tf
index 2e408aba..0e950b21 100644
--- a/stacks/echo/main.tf
+++ b/stacks/echo/main.tf
@@ -30,7 +30,7 @@ resource "kubernetes_deployment" "echo" {
     }
   }
   spec {
-    replicas = 5
+    replicas = 1
     selector {
       match_labels = {
         app = "echo"
diff --git a/stacks/networking-toolbox/main.tf b/stacks/networking-toolbox/main.tf
index 899f1220..af7e5f7c 100644
--- a/stacks/networking-toolbox/main.tf
+++ b/stacks/networking-toolbox/main.tf
@@ -30,7 +30,7 @@ resource "kubernetes_deployment" "networking-toolbox" {
     }
   }
   spec {
-    replicas = 3
+    replicas = 1
     selector {
       match_labels = {
         app = "networking-toolbox"
diff --git a/stacks/osm_routing/main.tf b/stacks/osm_routing/main.tf
index d42af6ec..60bc03d5 100644
--- a/stacks/osm_routing/main.tf
+++ b/stacks/osm_routing/main.tf
@@ -59,7 +59,8 @@ resource "kubernetes_deployment" "osrm-foot" {
     }
   }
   spec {
-    replicas = 1
+    # Disabled: reduce cluster memory pressure (2026-03-14 OOM incident)
+    replicas = 0
     strategy {
       type = "Recreate"
     }
@@ -139,7 +140,8 @@ resource "kubernetes_deployment" "osrm-bicycle" {
     }
   }
   spec {
-    replicas = 1
+    # Disabled: reduce cluster memory pressure (2026-03-14 OOM incident)
+    replicas = 0
     strategy {
       type = "Recreate"
     }
@@ -219,7 +221,8 @@ resource "kubernetes_deployment" "otp" {
     }
   }
   spec {
-    replicas = 1
+    # Disabled: reduce cluster memory pressure (2026-03-14 OOM incident)
+    replicas = 0
     strategy {
       type = "Recreate"
     }
diff --git a/stacks/travel_blog/main.tf b/stacks/travel_blog/main.tf
index 31daa076..18f386bc 100644
--- a/stacks/travel_blog/main.tf
+++ b/stacks/travel_blog/main.tf
@@ -30,7 +30,7 @@ resource "kubernetes_deployment" "blog" {
     }
   }
   spec {
-    replicas = 3
+    replicas = 1
     selector {
       match_labels = {
         app = "travel-blog"