From 1f5ff728f4c48e5bfa1c4bbd974b1fb38f4e8af2 Mon Sep 17 00:00:00 2001
From: jenkins <jenkins@bstein.dev>
Date: Tue, 11 Aug 2026 01:40:28 -0300
Subject: [PATCH] monitoring: retain Pi fallback for VictoriaMetrics

---
 services/monitoring/helmrelease.yaml | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/services/monitoring/helmrelease.yaml b/services/monitoring/helmrelease.yaml
index 305436fad..4ab92c5ae 100644
--- a/services/monitoring/helmrelease.yaml
+++ b/services/monitoring/helmrelease.yaml
@@ -108,13 +108,6 @@ spec:
                     operator: In
                     values:
                       - "true"
-                  # VictoriaMetrics is too memory- and CPU-heavy for the Pi 4
-                  # workers. A hard Pi 5 requirement also moves old placements
-                  # instead of leaving them on a previously selected Pi 4.
-                  - key: hardware
-                    operator: In
-                    values:
-                      - rpi5
                   - key: kubernetes.io/hostname
                     operator: NotIn
                     values:
@@ -122,11 +115,27 @@ spec:
                       # attachment hosts and can surface volume I/O errors.
                       - titan-14
                       - titan-18
+                      # Keep the metrics database off this saturated Pi 4.
+                      - titan-12
                       - titan-20
                       - titan-21
                       - titan-22
                       - titan-24
           preferredDuringSchedulingIgnoredDuringExecution:
+            - weight: 100
+              preference:
+                matchExpressions:
+                  - key: hardware
+                    operator: In
+                    values:
+                      - rpi5
+            - weight: 50
+              preference:
+                matchExpressions:
+                  - key: hardware
+                    operator: In
+                    values:
+                      - rpi4
             - weight: 25
               preference:
                 matchExpressions: