From 5cef2dd8b560ddd2de3b436ea0c9a4b64bb460be Mon Sep 17 00:00:00 2001
From: Pavlo Tkach <3469726+ptkach@users.noreply.github.com>
Date: Sun, 10 Aug 2025 12:16:48 -0400
Subject: [PATCH] Remove nodeSelector from k8s deployments (#2798)

nodeSelector can limit scheduling capabilities of k8s, which leads to delays in assigning new workloads. Since we do not require and particular machine for execution it can be removed.
---
 jetty/kubernetes/nomulus-backend.yaml  |  9 ++++++---
 jetty/kubernetes/nomulus-frontend.yaml | 15 ++++++++++++---
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/jetty/kubernetes/nomulus-backend.yaml b/jetty/kubernetes/nomulus-backend.yaml
index e689cf16c..16afeca67 100644
--- a/jetty/kubernetes/nomulus-backend.yaml
+++ b/jetty/kubernetes/nomulus-backend.yaml
@@ -14,9 +14,6 @@ spec:
         service: backend
     spec:
       serviceAccountName: nomulus
-      nodeSelector:
-        cloud.google.com/compute-class: "Performance"
-        cloud.google.com/machine-family: c4
       containers:
       - name: backend
         image: gcr.io/GCP_PROJECT/nomulus
@@ -25,9 +22,15 @@ spec:
           name: http
         resources:
           requests:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "500m"
             memory: "1Gi"
           limits:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "1000m"
             memory: "1Gi"
         args: [ENVIRONMENT]
diff --git a/jetty/kubernetes/nomulus-frontend.yaml b/jetty/kubernetes/nomulus-frontend.yaml
index 6fd177b41..abf3a41a1 100644
--- a/jetty/kubernetes/nomulus-frontend.yaml
+++ b/jetty/kubernetes/nomulus-frontend.yaml
@@ -14,9 +14,6 @@ spec:
         service: frontend
     spec:
       serviceAccountName: nomulus
-      nodeSelector:
-        cloud.google.com/compute-class: "Performance"
-        cloud.google.com/machine-family: c4
       containers:
       - name: frontend
         image: gcr.io/GCP_PROJECT/nomulus
@@ -25,9 +22,15 @@ spec:
           name: http
         resources:
           requests:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "1000m"
             memory: "1Gi"
           limits:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "1000m"
             memory: "2Gi"
         args: [ENVIRONMENT]
@@ -53,9 +56,15 @@ spec:
           name: epp
         resources:
           requests:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "1000m"
             memory: "512Mi"
           limits:
+            # explicit pod-slots 0 is required in order to downgrade node
+            # class from performance, which has implicit pod-slots 1
+            cloud.google.com/pod-slots: 0
             cpu: "1000m"
             memory: "512Mi"
         args: [--env, PROXY_ENV, --log, --local]