npm install遇到权限问题，但是无论如何改变权限都不起作用

gyp ERR! configure error 
gyp ERR! stack Error: EACCES: permission denied, mkdir '/var/lib/jenkins/workspace/microHomeStaticPage/node_modules/node-sass/.node-gyp'
gyp ERR! System Linux 3.10.0-693.11.1.el7.x86_64
gyp ERR! command "/usr/local/software/node/bin/node" "/var/lib/jenkins/workspace/microHomeStaticPage/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /var/lib/jenkins/workspace/microHomeStaticPage/node_modules/node-sass
gyp ERR! node -v v10.8.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok 
Build failed with error code: 1
npm WARN ajv-keywords@3.2.0 requires a peer of ajv@^6.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.9.3 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the node-sass@4.9.3 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2018-09-14T10_57_22_961Z-debug.log

解决方法

使用nodejs官网的解决方案，改变默认目录

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