我正在使用node-serialport
https://github.com/voodootikigod/node-serialport的一个小nodejs(nodejs v4.3)项目.我将它包装在一个docker镜像中.首先,我成功使用debian作为基本图像,但它的总大小约为600MB.然后我切换到alpine linux
https://hub.docker.com/_/alpine/并实现了100MB的图像大小.但是,nodejs项目停止使用alpine作为基本图像.这是一些日志：
安装node-serialport日志：
> serialport@2.0.6 install /app/node_modules/serialport > node-pre-gyp install --fallback-to-build [serialport] Success: "/app/node_modules/serialport/build/Release/node-v46-linux-x64/serialport.node" is installed via remote serialport@2.0.6 node_modules/serialport ├── bindings@1.2.1 ├── async@0.9.0 ├── sf@0.1.7 ├── debug@2.2.0 (ms@0.7.1) ├── nan@2.0.9 └── optimist@0.6.1 (wordwrap@0.0.3,minimist@0.0.10)
当我尝试打开串口时出现错误：
npm ERR! Linux 3.19.0-30-generic npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "start" npm ERR! node v4.3.0 npm ERR! npm v2.14.12 npm ERR! code ELIFECYCLE npm ERR! app@1.2.0 start: `node ./bin/www` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the app@1.2.0 start script 'node ./bin/www'. npm ERR! This is most likely a problem with the app package,npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node ./bin/www npm ERR! You can get their info via: npm ERR! npm owner ls app npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! /app/app/npm-debug.log module.js:435 return process.dlopen(module,path._makeLong(filename)); ^ Error: Error relocating /app/app/node_modules/serialport/build/Release/node-v46-linux-x64/serialport.node: __strcpy_chk: symbol not found at Error (native) at Object.Module._extensions..node (module.js:435:18) at Module.load (module.js:344:32) at Function.Module._load (module.js:301:12) at Module.require (module.js:354:17) at require (internal/module.js:12:17) at Object.<anonymous> (/app/app/node_modules/serialport/serialport.js:14:25) at Module._compile (module.js:410:26) at Object.Module._extensions..js (module.js:417:10) at Module.load (module.js:344:32)
正如我所说,以debian为基本图像,它起作用.我认为这可能与alpine linux缺少node-serialport所依赖的事实有关.我在https://github.com/voodootikigod/node-serialport/issues/682创建了一个问题,但我不确定这是node-serialport还是alpine linux的问题.我读到了关于node-pre-gyp在alpine / busyBox上出错的问题.
解决方法
https://github.com/voodootikigod/node-serialport/pull/710
Alpine是一个(非常)小的发行版,但它使用musl标准库而不是glibc(大多数其他Linux发行版使用),所以它需要编译.
# If you don't have node/npm already,add that first sudo apk add --no-cache nodejs # Add the necessary build and runtime dependencies sudo apk add --no-cache make gcc g++ python linux-headers udev # Then we can install serialport,forcing it to compile npm install serialport --build-from-source=serialport
我测试了它.它解决了这个问题.
