I've recently updated prometheus-operator with that change.
Every kubelet resources scrapping job failing with:
Get "https://10.70.240.147:10250/metrics/resource/v1alpha1": x509: cannot validate certificate for 10.70.240.147 because it doesn't contain any IP SANs
TargetDown alert because in my case 19 out of 76 jobs are failing.
Not sure which cert is failing
Error messages in kubelet log are probably related to that thing:
Jun 21 17:49:09 ip-10-70-240-147 kubelet: I0621 17:49:09.106193 3576 log.go:172] http: TLS handshake error from 10.70.241.108:25852: remote error: tls: bad certificate
setup: aws kops 1.17.6
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