A few more suggested q:

1/ what tools to manager k8s certificates.

(cert-manager)

2/ web not able to reach apps on pod, how to troubleshoot ? (k get pods, ep, ingress, service, etc.. to check if they are all set up correctly)

3/ how to manage secrets in pods ? (native can use secrets but it is not encyrpted, so better use cloud KMS or Vault)....

: )