Add alerts for fe workers and the rest of the NFS servers

cc/ @omame @ahanselka @maratkalibek @jtevnan @northrup

cc/ @stanhu @bjk-gitlab

resolved all discussions

Thanks @omame, check again

resolved all discussions

added 5 commits

• 7ca14c61 - 1 commit from branch master
• e881340d - Add alerts for fe workers and the rest of the NFS servers
• f235b302 - More strict matching and small text change on the alert
• 6ae1a848 - Simplify matching rules for nfs servers
• eec0f751 - Fix the grammar of nfs-down alert

Compare with previous version

resolved all discussions

I'm merging counting with your blessing @omame

added 5 commits

• 99da3ad7 - 1 commit from branch master
• 8506f7ae - Add alerts for fe workers and the rest of the NFS servers
• 565d0ead - More strict matching and small text change on the alert
• 637506e8 - Simplify matching rules for nfs servers
• 6ecebe70 - Fix the grammar of nfs-down alert

Compare with previous version

merged