Fix panic if a tempfile cannot be created
Fix panic if a tempfile cannot be created

canhnt/ingress,nevetS/ingress,chentao1596/ingress,kubernetes/ingress-nginx,caiyixiang/ingress,literalice/ingress,danielqsj/ingress,nicksardo/ingress,winfield-chen-hs/ingress,matthewg/ingress,caicloud/ingress,kubernetes/ingress-nginx,kubernetes/ingress-nginx,jcmoraisjr/ingress,jcmoraisjr/ingress,aledbf/ingress-nginx,jcmoraisjr/ingress,canhnt/ingress,kubernetes/ingress-nginx,kubernetes/ingress-nginx,chentao1596/ingress,porridge/ingress,arjanschaaf/ingress,nicksardo/ingress,winfield-chen-hs/ingress,kubernetes/ingress-gce,danielqsj/ingress,caiyixiang/ingress,caicloud/ingress,coryfklein/ingress,aledbf/ingress-nginx,nicksardo/ingress,caicloud/ingress,nevetS/ingress,coryfklein/ingress,kubernetes/ingress-gce,aledbf/ingress-nginx,canhnt/ingress,caicloud/ingress,nicksardo/ingress,arjanschaaf/ingress,matthewg/ingress,literalice/ingress,aledbf/ingress-nginx,canhnt/ingress,porridge/ingress