

Enable keepalive in upstreams 
nicksardo/ingress,kubernetes/ingress-nginx,aledbf/ingress-nginx,nicksardo/ingress,nicksardo/ingress,canhnt/ingress,caicloud/ingress,nicksardo/ingress,caicloud/ingress,caicloud/ingress,jcmoraisjr/ingress,aledbf/ingress-nginx,chentao1596/ingress,kubernetes/ingress-gce,canhnt/ingress,kubernetes/ingress-nginx,caicloud/ingress,jcmoraisjr/ingress,jcmoraisjr/ingress,aledbf/ingress-nginx,kubernetes/ingress-nginx,danielqsj/ingress,aledbf/ingress-nginx,canhnt/ingress,danielqsj/ingress,canhnt/ingress,kubernetes/ingress-nginx,kubernetes/ingress-gce,kubernetes/ingress-nginx,chentao1596/ingress