【运维发布】域名健康：解析与证书的巡检机制

local DOMAINS = {
    { host = "www.chuan2.cn", expect = "47.114.52.214" },
    { host = "api.chuan2.cn", expect = "47.114.52.214" },
    { host = "bbs.chuan2.cn", expect = "47.114.52.215" },
}
local function recordProbe(host, ok)
    if ok then
        setsysvarex("PROBE_OK_TS", os.time(), 1)
    else
        setplayvar("HUMAN", "PROBE_FAIL_" .. host, os.time(), 1)
    end
end

setontimerex(196, 1800)
function ontimer196()
    local last = tonumber(getsysvar("PROBE_OK_TS") or "0")
    if os.time() - last > 1800 then
        sendmail("#值班老张", 918, "域名拨测中断告警", "最近 30 分钟无成功探测记录，请检查拨测任务", "")
    end
    local certLeft = tonumber(getsysvar("CERT_DAYS") or "999")
    if certLeft <= 30 then
        sendmail("#运维老张", 919, "证书临期提醒", "证书剩余 " .. certLeft .. " 天", "")
    end
end