Spread symcrest-web across availability zones

charts/symcrest-web/templates/deployment.yaml

@@ -16,6 +16,13 @@ spec:
     spec:
       imagePullSecrets:
         - name: forgejo-registry
+
+      nodeSelector:
+{{ toYaml .Values.nodeSelector | indent 8 }}
+
+      topologySpreadConstraints:
+{{ toYaml .Values.topologySpreadConstraints | indent 8 }}
+
       containers:
         - name: symcrest-web
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"

charts/symcrest-web/values.yaml

@@ -26,3 +26,14 @@ resources:
   limits:
     cpu: 250m
     memory: 256Mi
+
+nodeSelector:
+  workload: app
+
+topologySpreadConstraints:
+  - maxSkew: 1
+    topologyKey: topology.kubernetes.io/zone
+    whenUnsatisfiable: DoNotSchedule
+    labelSelector:
+      matchLabels:
+        app: symcrest-web

rendered/symcrest-web/symcrest-web.yaml

@@ -33,6 +33,18 @@ spec:
     spec:
       imagePullSecrets:
         - name: forgejo-registry
+
+      nodeSelector:
+        workload: app
+
+      topologySpreadConstraints:
+        - labelSelector:
+            matchLabels:
+              app: symcrest-web
+          maxSkew: 1
+          topologyKey: topology.kubernetes.io/zone
+          whenUnsatisfiable: DoNotSchedule
+
       containers:
         - name: symcrest-web
           image: "www.symcrest.com/symcrest/symcrest-web:1.0.7"