Changeset 0.32.0 (#206)

chart/templates/deployment-backend.yaml

@@ -22,6 +22,20 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      # v0.32.0: Spread replicas across nodes for node-level HA.
+      # preferred (not required) — if fewer nodes than replicas, pods
+      # still schedule on the same node (degraded HA > no scheduling).
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+            - weight: 100
+              podAffinityTerm:
+                labelSelector:
+                  matchLabels:
+                    app.kubernetes.io/name: {{ .Chart.Name }}
+                    app.kubernetes.io/instance: {{ .Release.Name }}
+                    app.kubernetes.io/component: backend
+                topologyKey: kubernetes.io/hostname
       containers:
         - name: backend
           image: {{ include "switchboard.backend.image" . }}
@@ -45,18 +59,21 @@ spec:
             - name: data
               mountPath: /data
           {{- end }}
+          # v0.32.0: Liveness — process alive (no dependency checks).
           livenessProbe:
             httpGet:
-              path: {{ .Values.basePath }}/api/v1/health
+              path: {{ .Values.basePath }}/healthz/live
               port: http
             initialDelaySeconds: 10
             periodSeconds: 30
+          # v0.32.0: Readiness — PG reachable. Failure pulls pod from Service.
           readinessProbe:
             httpGet:
-              path: {{ .Values.basePath }}/api/v1/health
+              path: {{ .Values.basePath }}/healthz/ready
               port: http
             initialDelaySeconds: 5
             periodSeconds: 10
+            failureThreshold: 3
       {{- if .Values.persistence.enabled }}
       volumes:
         - name: data