Runner cant find npm

[SuneRadich]

I have just setup the docker runner, but I have been unable to run a simple npm powered build.

When I run my simple gitlab-ci.yml setup

before_script:
    - whoami
    - git config --global core.autocrlf input
    - git config core.filemode false
#    - npm install grunt-cli
#    - npm install

runtest:
    script:
        - npm test

I expect it to run the npm test command

However, the debug info from Gitlab is like this

cd /gitlab-ci-runner/tmp/builds/project-2 && git reset --hard && git clean -fdx && git remote set-url origin http://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@gitlab.myserver.com/internal/boilerplate.git && git fetch origin
HEAD is now at f5090d9 Add debug info
From http://gitlab.myserver.com/internal/boilerplate
   f5090d9..77abc6a  master     -> origin/master
cd /gitlab-ci-runner/tmp/builds/project-2 && git reset --hard && git checkout 77abc6a1fba5b83ce3dcd4d1570ae9fe2077c707
HEAD is now at f5090d9 Add debug info
Previous HEAD position was f5090d9... Add debug info
HEAD is now at 77abc6a... Debug
whoami
root
git config --global core.autocrlf input
git config core.filemode false
npm test
/tmp/executor20170524-7-8ugb7h: line 15: npm: command not found

It seems that I cannot find the npm binary.

The weird part is, that if I go into the docker image, by issuing docker exec -it gitlab-ci-runner-nodejs bash. npm runs just fine. Even in the tmp folder where the runner checks out the files to.

I tried to insert a whoami step in my before_scripts, and the runner is run as root.

Why cant the runner execute the npm command when running through Gitlab, but it works fine from the bash of the docker container?