Just wanted to know how the experts here manage to update the kernels on their servers (fleet of servers)?
Sure, for 4-5 servers its fine to do it manually and then reboot. A cron job can also be setup for yum update -y && reboot
But lets say there are more than 100+ servers which are used in the provision of hundreds/thousands of VPS to clients, so, how does the kernel update process is handled?
It would really help in getting some insights for it.
I am aware of KernelCare but is it worth for +100 servers? Some say its not that efficient and still a reboot maybe required for some kernel updates.