How to view or export content of file have extension .p12 ?

cmd: 

openssl pkcs12 -info -in filename.p12 -nodes

This command will show content of filename.p12 , It usually consists of crt and privatekey .

Generate or export csr from existing private key

openssl req -new -key old.key -nodes -out req.csr

Nguyen Si Nhan

[Kubernetes] [k8s] How to restart a pod ?

Have a way to ensure no application downtime is to use : 

kubectl -n <namespace> rollout restart deployment <deployment_name|statefulset_name> .

Nguyen Si Nhan .