【运维发布】巡检脚本：每日自动体检的检查项

---每日 06:00 巡检：检查项全过一遍
setontimerex(70, 60)
function Checkup.tick()
    if os.date("%H%M") ~= "0600" then return end
    if Checkup.doneToday() then return end
    Checkup.markToday()
    local report = {}
    report.disk = Checkup.disk()          -- 磁盘水位
    report.mem = Checkup.memory()         -- 内存趋势
    report.backup = Checkup.lastBackup()  -- 昨日备份
    report.slow = Checkup.slowCount()     -- 慢查询
    report.online = grobalinfo(6)         -- 在线快照
    Checkup.judge(report)
    Checkup.send(report)
end

---判定：绿黄红三档
function Checkup.judge(r)
    r.level = "green"
    if r.disk > 75 or r.slow > 50 then
        r.level = "yellow"
    end
    if r.disk > 90 or r.mem.trend > 0.9
        or not r.backup.ok then
        r.level = "red"
    end
    if r.level ~= "green" then
        Ops.alert("巡检[" .. r.level .. "]",
            Checkup.summary(r))
    end
end