【运维发布】演练题库：季度故障演练的案例库建设

local DRILLS = {
    { id = "D01", name = "网关单点故障", passSec = 600 },
    { id = "D02", name = "数据库主从切换", passSec = 600 },
    { id = "D03", name = "支付回调重放", passSec = 300 },
    { id = "D04", name = "跨服节点失联", passSec = 600 },
}
local function pickDrills()
    local pool, picked = {}, {}
    for _, d in ipairs(DRILLS) do pool[#pool + 1] = d end
    for i = 1, 3 do
        local idx = math.random(#pool)
        picked[i] = table.remove(pool, idx)
    end
    return picked
end

local function scoreDrill(drill, costSec)
    local pass = costSec <= drill.passSec
    setsysvarex("DRILL_" .. drill.id, pass and 1 or 0, 1)
    sendmail("#运维老张", 938, "季度演练结果",
        drill.name .. (pass and " 通过，" or " 未通过，") .. "耗时 " .. costSec .. " 秒", "")
end