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搬到 Lightsail 真服务器 + 加 nginx 给 Cloudflare 回源
== 新架构 ==
用户 --HTTPS--> Cloudflare CDN --HTTP:80--> nginx
(yk.xxmxxs.top) 13.54.30.196
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v
127.0.0.1:13245 (中转)
旧架构是"Cloudflare 隧道"(cloudflared 走 7844 到那台 4G 小机器),
那条线路对 7844 是间歇性阻断的(443 通、7844 不通),
隧道每 3~10 分钟掉一次、公网跟着 530 —— 是"网站容易挂"的主因。
新架构**不用隧道**:新机器有公网 IP,Cloudflare 走标准的
反代(回源 80 端口),这是完全不同的东西,没有 7844 问题。
== 为什么要 nginx 这一层 ==
Cloudflare 只能回源到特定端口:
HTTP: 80 / 8080 / 8880 / 2052 / 2082 / 2086 / 2095
HTTPS: 443 / 2053 / 2083 / 2087 / 2096 / 8443
中转跑的 13245 不在列表里,所以中间放一层 nginx。
加了 nginx 之后顺便把中转**改成只监听 127.0.0.1** ——
公网只能通过 nginx 进来,少一个暴露面。实测
http://13.54.30.196:13245 现在是连不上的(000),符合预期。
== nginx 配置要点 ==
/download/ proxy_buffering on + 显式 Cache-Control 604800 immutable
(文件名带版本号、内容永不改变,放心长缓存;
Cloudflare 缓存后第二次下载不回源)
/v1/ proxy_read_timeout 180s + **proxy_buffering off**
(长轮询挂 60 秒,nginx 默认 60 秒就断;而且必须关缓冲,
否则要等整个响应完才吐给客户端,那就不是长轮询了)
/ 普通反代
server_tokens off
client_max_body_size 200m
== 代码修复 ==
relay.py 的 DATA_DIR 默认值原来是写死的 /root/lanremote-relay。
新机器上服务以 admin 普通用户跑(它没理由要 root),而 /root 是 0700,
部署时直接 PermissionError。改成"脚本所在目录下的 data/"。
== 客户端 ==
2.1.3 里已经让手表端支持"没有证书的中转"(裸 IP 走明文 +
usesCleartextTraffic)。等域名和 Cloudflare 接好之后就是全程 HTTPS 了。
== 新增的运维脚本 ==
_build/lssh.py Lightsail 的 SSH 助手(密钥登录)
_build/deploy_lightsail.py 首次部署中转
_build/deploy_lightsail_monitor.py 装监测单元 + 预案
_build/deploy_lightsail_release.py 按版本部署代码和成品
_build/check_lightsail.py 看状态
_build/setup_nginx.py 装配 nginx
relay/rescue-lightsail.sh 紧急预案(针对新架构重写:
没有隧道了,改成重启中转 / 强杀重拉 /
查防火墙 / 重启整机[默认关])
This commit is contained in:
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# -*- coding: utf-8 -*-
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r'''把一个版本的代码和成品部署到 Lightsail。
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用法:
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python _build/deploy_lightsail_release.py 2.1.3
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python _build/deploy_lightsail_release.py 2.1.3 --code-only
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python _build/deploy_lightsail_release.py 2.1.3 --files-only
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== 为什么写成文件 ==
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这一轮我用 `python -c @"..."@` 传带 `$(...)` 的远端命令,
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PowerShell 把 `$(systemctl ...)` 当成本机的子表达式执行了
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(报 "无法将 systemctl 项识别为 cmdlet"),还吃掉引号导致
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Python 语法错。凡是超过两行的远端命令,一律写成文件跑。
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'''
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from __future__ import annotations
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import sys
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from pathlib import Path
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ROOT = Path(__file__).resolve().parent.parent
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sys.path.insert(0, str(ROOT / "_build"))
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from lssh import run, upload # noqa: E402
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RELAY_DIR = "/opt/ykxmz-relay"
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PORT = "13245"
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PUBLIC = "http://13.54.30.196:%s" % PORT
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CODE = ["relay.py", "admin.py", "landing.py", "showcase.py"]
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ARTIFACTS = ["ykxmz-setup-{v}.exe", "ykxmz-watch-{v}.apk",
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"ykxmz-watch-{v}-说明.txt", "ykxmz-server-{v}.zip"]
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def main() -> int:
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args = [a for a in sys.argv[1:] if a]
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if not args:
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print(__doc__)
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return 1
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version = args[0]
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code_only = "--code-only" in args
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files_only = "--files-only" in args
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print("=" * 62)
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print(" 部署 %s 到 Lightsail" % version)
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print("=" * 62)
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if not code_only:
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print()
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print(" ── 1. 传成品到 downloads/ ──")
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run("mkdir -p %s/downloads" % RELAY_DIR, timeout=60, quiet=True)
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for tpl in ARTIFACTS:
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name = tpl.format(v=version)
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local = ROOT / "dist" / name
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if not local.is_file():
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print(" [跳过] %s 不存在" % name)
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continue
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upload(str(local), "%s/downloads/%s" % (RELAY_DIR, name))
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if not files_only:
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print()
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print(" ── 2. 传服务端代码 ──")
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for name in CODE:
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local = ROOT / "relay" / name
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if not local.is_file():
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print(" [跳过] %s 不存在" % name)
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continue
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upload(str(local), "%s/%s" % (RELAY_DIR, name))
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print()
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print(" ── 3. 语法检查 + 重启 ──")
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out = run(
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"cd %s && for f in relay.py admin.py landing.py showcase.py; do "
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"python3 -c \"import ast,sys;ast.parse(open(sys.argv[1],"
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"encoding='utf-8').read())\" $f || exit 1; done && echo PY_OK"
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% RELAY_DIR, timeout=120, quiet=True)
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print(" " + out[1].strip().splitlines()[-1])
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out = run("sudo systemctl restart ykxmz-relay; sleep 4; "
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"systemctl is-active ykxmz-relay", timeout=180, quiet=True)
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print(" relay 状态: " + out[1].strip())
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print()
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print(" ── 4. 复核 ──")
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script = (
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'printf " %-18s %s\\n" 本机 "'
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'$(curl -s -o /dev/null -w \'%{http_code}\' --max-time 8 '
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'http://127.0.0.1:' + PORT + '/v1/health)"\n'
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'printf " %-18s %s\\n" 公网 "'
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'$(curl -s -o /dev/null -w \'%{http_code}\' --max-time 15 '
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+ PUBLIC + '/v1/health)"\n'
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'printf " %-18s %s\\n" 公网首页 "'
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'$(curl -s -o /dev/null -w \'%{http_code}\' --max-time 15 '
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+ PUBLIC + '/)"\n'
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'printf " %-18s %s\\n" 公网延迟 "'
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'$(curl -s -o /dev/null -w \'%{time_total}s\' --max-time 15 '
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+ PUBLIC + '/v1/health)"\n'
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'printf " %-18s %s\\n" 角标 "'
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'$(curl -s --max-time 10 http://127.0.0.1:' + PORT
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+ '/ | grep -o "最新版 [0-9.]*" | head -1)"\n'
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'printf " %-18s %s\\n" 监听 "'
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'$(ss -tln 2>/dev/null | grep ":' + PORT + ' " | wc -l) 个"\n'
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'printf " %-18s %s\\n" 监测 "'
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'fails=$(grep -m1 ^fails= ' + RELAY_DIR
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+ '/monitor_state.txt 2>/dev/null | cut -d= -f2); '
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'echo ${fails:-?} 次连续失败"\n'
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'printf " %-18s %s\\n" 抢救报告 "'
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'$(ls ' + RELAY_DIR + '/rescue_reports 2>/dev/null | wc -l) 份"\n'
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)
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out = run(script, timeout=180, quiet=True)
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for ln in out[1].strip().splitlines():
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print(ln)
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print()
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print(" 公网地址:%s" % PUBLIC)
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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