From 7bbc8b51754410e6cc4bc15ff65b5b1c76d47f80 Mon Sep 17 00:00:00 2001
From: mtkadmin <admin@homelab.local>
Date: Fri, 20 Mar 2026 00:55:44 +0000
Subject: [PATCH] fix(pihole): add nodeSelector + dnsPolicy to prevent volume
 conflicts

- nodeSelector: rnk-wrk01 prevents RWO Multi-Attach on rollout
- dnsPolicy: None + external nameservers prevents DNS loop in pod

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 k8s/pihole/deployment.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/k8s/pihole/deployment.yaml b/k8s/pihole/deployment.yaml
index 170691b..93515e3 100644
--- a/k8s/pihole/deployment.yaml
+++ b/k8s/pihole/deployment.yaml
@@ -15,6 +15,13 @@ spec:
       labels:
         app: pihole
     spec:
+      nodeSelector:
+        kubernetes.io/hostname: rnk-wrk01
+      dnsPolicy: None
+      dnsConfig:
+        nameservers:
+          - 1.1.1.1
+          - 8.8.8.8
       containers:
         - name: pihole
           image: pihole/pihole:latest