Tip: Create tls secret with key cert and ca cert files in Kubernetes

Requirement:

    We need to create tls secrets in Kubernetes for our oracle OCI balancer. Refer doc. However, the command only accepts key and cert files.

"kubectl create secret tls ssl-certificate-secret --key tls.key --cert tls.crt"

There is no option to add the CA certificate file here.

Solution:

    We need to combine CA certificate files with the cert file to form 1 cert file for Kubernetes. We simply copy the content of CA certificate files and append at the end of the cert file.