dnz drill switch on # allowed; starts nothing by itself
dnz drill list # the switch, the stages in words, what's under way, the drills
dnz drill add "App server 1" --stage origin --proxy edge --node edge-a --upstream app --origin http://10.0.0.1:80 --at 03:00 --days sun
dnz drill add "Node A" --stage node --proxy edge --node edge-a --at 03:00 --days sun --schedule
dnz drill add "Could ns2 take over?" --stage take_over --secondary ns2 --peer-url http://10.0.0.6:8080 --at 04:00
dnz drill edit "Node A" --limit 900 --expect 90 --errors 2 --no-schedule
dnz drill check "Node A" # whether it would start now, changing nothing
dnz drill run "Node A" # inside its window; asks first (--yes doesn't)
dnz drill stop # the one under way: everything goes back
dnz drill runs --status failed --page 2 # 20 to a page (--limit); --drill "Node A"
dnz drill report 12 # time to notice, traffic moved, errors visitors saw, what didn't go as set
dnz drill rm "Node A" # its history stays
