Changing SSL Certificate

[ele30]

Hello, I need to renew the SSL certificate. I have the crt.pem files, how can I proceed with this update? Thanks. 

[tuanla123]

So, you want to replace the cert for the Dynatrace UI, right?
By the way, it can automatically renew by let's encrypt. If you use the loadbalancer outside this cluster, you must to change it in LB

[ele30]

I don't know about the UI thing. I need to update the certificate. I don't know about let's encrypt either. My colleage who send me the files told me that the last technician did it, so I supponse it needs to be done in dynatrace, but I am not sure. 

They have give me a date saying that the certificate corresponding to the site subdomain.domain.com expires and that this year the CA's are also changing (now digicert). 

I have no clue about how to proceed.