node.js - Pass environment variable from Gitlab docker executor to image -

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in test setup, use docker executor run builds. our projects run on 1 of official node images (ie node:6).

by default, these official images come logging level set output quite abit.

according official documentation, can disabled https://github.com/nodejs/docker-node/blob/master/readme.md#verbosity

verbosity  default node.js docker image has npm log verbosity set info instead  of default warn. because of way docker isolated  host operating system , not guaranteed able retrieve  npm-debug.log file when npm fails.  when npm fails, writes it's verbose log log file inside container.  if npm fails during install when building docker image docker  build command, log file become inaccessible when docker exits.  docker working group have chosen overly verbose during build  provide easy audit trail when install fails. if prefer npm less  verbose can reset verbosity of npm using following  techniques:  dockerfile  if create own dockerfile inherits node image can  use env override npm_config_loglevel.  node env npm_config_loglevel warn ...  docker run  if run node image using docker run can use -e flag override  npm_config_loglevel.  $ docker run -e npm_config_loglevel=warn node ...  npm run  if running npm commands can use --loglevel control  verbosity of output.  $ docker run node npm --loglevel=warn ...

but when reference docker image gitlab-ci.yml file, so:

image: node:6  test:     script:         - npm install

how can pass environment variable, set logging level, docker executor?

as listed in gitlab-ci reference, can specify environment variables in configuration file variables keyword. in case be

image: node:6  test:     variables:         npm_config_loglevel: warn     script:         - npm install

alternatively add --loglevel=warn node commands in script part of ci configuration.





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