kubernetes/ingress-nginx

Distinguish wait-shutdown command from standard k8s SIGTERM

Aperta

#6287 aperta il 6 ott 2020

 (32 commenti) (1 reazione) (1 assegnatario)Go (7888 fork)batch import
good first issuehelp wantedkind/featureneeds-triagepriority/backlog

Metriche repository

Star
 (15.199 stelle)
Metriche merge PR
 (Nessuna PR mergiata in 30 g)

Descrizione

As of v0.26.0, we can specify /wait-shutdown as a pre-stop hook in our deployment spec. As currently implemented, it sends SIGTERM to the nginx-ingress-controller process. https://github.com/kubernetes/ingress-nginx/blob/59a7f51cd4f0c41f214c520ca8b2a502946ed08e/cmd/waitshutdown/main.go#L29

Since SIGTERM is also what k8s sends when shutting down a pod, there is no way for us to really tell for sure from the logs whether the pre-stop hook was properly configured or not. For this reason, it would be better if wait-shutdown used a different signal.

/kind feature

Guida contributor