From b91400fd9210d9bd46e665e764ec82547e1a7924 Mon Sep 17 00:00:00 2001
From: Sanne Raymaekers <sanne.raymaekers@gmail.com>
Date: Fri, 27 May 2022 11:21:57 +0200
Subject: [PATCH] templates/composer: Add podAntiAffinity rule based on
 hostname

Linter output:
Specify anti-affinity in your pod specification to ensure that the
orchestrator attempts to schedule replicas on different nodes. Using
podAntiAffinity, specify a labelSelector that matches pods for the
deployment, and set the topologyKey to kubernetes.io/hostname.
---
 templates/composer.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/templates/composer.yml b/templates/composer.yml
index 0ea3397d9..ac3e9a5bc 100644
--- a/templates/composer.yml
+++ b/templates/composer.yml
@@ -36,6 +36,15 @@ objects:
           app: composer
       spec:
         serviceAccountName: image-builder
+        affinity:
+          podAntiAffinity:
+            preferredDuringSchedulingIgnoredDuringExecution:
+            - weight: 100
+              podAffinityTerm:
+                labelSelector:
+                  matchLabels:
+                    app: composer
+                topologyKey: kubernetes.io/hostname
         containers:
         - image: "${IMAGE_NAME}:${IMAGE_TAG}"
           name: composer