1、背景：
在维护paas云平台过程中，有研发反馈paas云平台上的CI/CD的前端流水线执行异常。
2、问题描述：
流水线执行的是前端编译，使用的是node.js环境。报错内容如下：
2024-07-18T01:23:04.203585287Z npm ERR! code ECONNRESET
2024-07-18T01:23:04.203727300Z npm ERR! errno ECONNRESET
2024-07-18T01:23:04.210147708Z npm ERR! network request to https://registry.npmjs.org/@vue%2fcli-plugin-router failed, reason: read ECONNRESET
2024-07-18T01:23:04.210195959Z npm ERR! network This is a problem related to network connectivity.
2024-07-18T01:23:04.210209224Z npm ERR! network In most cases you are behind a proxy or have bad network settings.
2024-07-18T01:23:04.210226834Z npm ERR! network
2024-07-18T01:23:04.210338075Z npm ERR! network If you are behind a proxy, please make sure that the
2024-07-18T01:23:04.210441692Z npm ERR! network 'proxy' config is set properly. See: 'npm help config'
2024-07-18T01:23:04.232363448Z
2024-07-18T01:23:04.232608727Z npm ERR! A complete log of this run can be found in:
2024-07-18T01:23:04.232720416Z npm ERR! /root/.npm/_logs/2024-07-18T01_23_04_228Z-debug.log
2024-07-18T01:23:04.479748876Z
2024-07-18T01:23:04.479882604Z > iot-platform-ui@0.0.1 build:test /app
2024-07-18T01:23:04.479934398Z > vue-cli-service build --mode test
2024-07-18T01:23:04.479958583Z
2024-07-18T01:23:04.483348655Z sh: vue-cli-service: not found
2024-07-18T01:23:04.488652326Z npm ERR! code ELIFECYCLE
2024-07-18T01:23:04.488758492Z npm ERR! syscall spawn
2024-07-18T01:23:04.488835196Z npm ERR! file sh
2024-07-18T01:23:04.488841198Z npm ERR! errno ENOENT
2024-07-18T01:23:04.490957465Z npm ERR! iot-platform-ui@0.0.1 build:test: `vue-cli-service build --mode test`
2024-07-18T01:23:04.490990241Z npm ERR! spawn ENOENT
2024-07-18T01:23:04.490995027Z npm ERR!
2024-07-18T01:23:04.490998423Z npm ERR! Failed at the iot-platform-ui@0.0.1 build:test script.
2024-07-18T01:23:04.491001883Z npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2024-07-18T01:23:04.492843295Z npm WARN Local package.json exists, but node_modules missing, did you mean to install?
2024-07-18T01:23:04.493174176Z
2024-07-18T01:23:04.493206554Z npm ERR! A complete log of this run can be found in:
2024-07-18T01:23:04.493219813Z npm ERR! /root/.npm/_logs/2024-07-18T01_23_04_491Z-debug.log
node.js编译的脚本配置如下：
#!/bin/sh
# CMD 脚本执行的工作目录为 pipeline 基础镜像的文件系统目录，包含 clone 的代码
rm -rf /app/pkg/*
npm config set https://registry.npmmirror.com/npm install
npm run build:test
result=$? #结果返回值
if [ $result -ne 0 ]; then
exit 1 #异常退出容器
ficp -r ./dist /app/pkg
cp nginx.conf /app/pkg
3、问题分析：
1、通过查看流水线执行的日志内容，npm ERR! network request to https://registry.npmjs.org/@vue%2fcli-plugin-router failed
2、初步分析是容器访问https://registry.npmjs.org地址有问题，需要在宿主机上执行telnet命令验证一下。
# ping registry.npmjs.org PING registry.npmjs.org (104.16.0.35) 56(84) bytes of data. 64 bytes from 104.16.0.35 (104.16.0.35): icmp_seq=1 ttl=52 time=134 ms 64 bytes from 104.16.0.35 (104.16.0.35): icmp_seq=2 ttl=52 time=134 ms 64 bytes from 104.16.0.35 (104.16.0.35): icmp_seq=3 ttl=52 time=135 ms ^Z [2]+ 已停止 ping registry.npmjs.org # telnet registry.npmjs.org 443 Trying 104.16.0.35... Connected to registry.npmjs.org. Escape character is '^]'.
通过上面的网络检查手段，可以确认网络是通的。
3、再次查看node.js编译脚本的config配置是https://registry.npmmirror.com镜像地址。
4、所以得出结论是执行中使用的npm镜像地址和实际脚本配置的npm config地址对不上，导致报错了。
因为代码里的要求是使用淘宝的npm镜像地址的。
所以需要设置默认的npm镜像地址。
npm config set registry https://registry.npmmirror.com4、问题解决：
node.js编译脚本中配置npm的默认镜像地址。设置后的node.js脚本配置内容如下：
#!/bin/sh
# CMD 脚本执行的工作目录为 pipeline 基础镜像的文件系统目录，包含 clone 的代码
rm -rf /app/pkg/*
npm config set registry https://registry.npmmirror.com/npm install
npm run build:test
result=$? #结果返回值
if [ $result -ne 0 ]; then
exit 1 #异常退出容器
ficp -r ./dist /app/pkg
cp nginx.conf /app/pkg
再次执行CI/CD的流水线编译过程，最后执行成功了。
5、总结：
如果node.js在使用npm时，默认的镜像地址为：https://registry.npmjs.org/，但是这个地址是外国地址，基本是不通的，同时国内开发前端程序时，基本默认配置的淘宝的地址。
因此，大家在遇到这个错误时，可以参考如上的分析过程。
