We've discussed Certificate visibility in Aria Operations previously:
I'm looking specifically for ESXi Host Certificates, which aren't exposed in the new Operations Diagnostics tile though, so where are they? Easy enough, the vCenter adapter actually captures them.
Looking at an ESXi Host in Operations, you'll see dozens of metrics and properties, one of which is a Property called Certificate Summary.
You can use these Properties in Dashboards, Views, Reports, Alerts, and more. I've created a Dashboard (and 2 Views) here that show ESXi Host Certificate data along with related vCenter Certificates. If you'd like this Dashboard it's available here.
We can also create Alerts telling us when these Certificates are about to expire, something like this.
Once an Alert pops, it'll look like this.
All sorts of things we can do from here: call a vRO Workflow to take action, open a ServiceNow Incident, make a Recommendation from within the Alert, and more. I hope this was helpful, enjoy!
I have downloaded this but have no data for the ESXi certificates. I have checked the policy and they are all active. I can also pull the data up on ESXi hosts in the Inventory view. When I try to edit the view I do not see the "End Date", "Issuer DN". "No. of days to expire", and "Start Date" outside of picking it from individual hosts.