Error message:
Internal error occurred: failed calling webhook " rancherauth.cattle.io " : Post https: // rancher-webhook.cattle-system.svc:443/v1/webhook/validation?timeout=10s: x509: certificate has expired or is not yet valid
Check the validity period of the certificate, it has expired 24 days
Solution:
0. Backup the yaml file of the cattle-webhook-tls certificate (the yaml file contains tls.crt and tls.key information)
1. Delete the expired cattle-webhook-tls certificate
2. Restart rancher-webhook pod
3. Check the validity period of the certificate again, it is already 1 year
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