Merge pull request #5646 from qzhuyan/backport/william/issue/5254

Backport: fix(helm-chart): force headless svc ready while pod is not ready

deploy/charts/emqx/templates/service.yaml

@@ -121,6 +121,7 @@ spec:
   type: ClusterIP
   sessionAffinity: None
   clusterIP: None
+  publishNotReadyAddresses: true
   ports:
   - name: mqtt
     port: {{ .Values.service.mqtt | default 1883 }}