I am trying to configure a least_conn upstream for kubernetes pods and find
that we receive a "host not found in upstream" error on startup if the pod
has not been started.
config snippet:
upstream backend {
least_conn;
server pod0.servicename.namespace.svc.cluster.local:8081;
server pod1.servicename.namespace.svc.cluster.local:8081;
server pod2.servicename.namespace.svc.cluster.local:8081;
}
location / {
proxy_pass http://backend;
}
we would like to be able to start up nginx and use least_conn load balancing
across all pods. however nginx fails to start unless all pods exist and can
resolve dns.
Posted at Nginx Forum:
https://forum.nginx.org/read.php?2,290383,290383#msg-290383
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