jenkins: add http-parser.jenkinsfile

[maclover7]

This is a simple prototype to try out Jenkins pipelines (ref #838) in a low-ish risk way. This commit introduces jenkins/http-parser.jenkinsfile, a pipeline to run tests for nodejs/http-parser -- http-parser is not part of ci.nodejs.org as of right now. I setup a Jenkins instance locally and was using it to test drive out the pipeline file. I can confirm it works correctly for PR 388 as well as master (if you leave PR_ID blank).

Before this can go out, there are a few things (and probably more that I didn't think of) that will be need to tested/done:

• finish setting up integration with nodejs/github-bot
  • get the hostname, and replace ngrok.io with that
  • add http-parser to this list
• target specific platforms
  • right now, http-parser's Travis CI configuration only targets linux, so we should either stick with that or add more platforms via the agent / label config options.
• backfill current open PRs
  • I think a good test for this would be to backfill all current open PRs with a CI run, to make sure it fails / succeeds as appropriate

Some pipelines stuff is a little quirky, but I think this is a decent POC -- please let me know your thoughts :)

cc @refack@gibfahn

[rvagg]

How does the curl for build status get authenticated for this? I'm out of the loop on build status stuff but I'm not seeing anything that's stopping arbitrary hosts from updating build status if they have the right URL.

Rest of it looks pretty good, I'm +1 on getting this hooked up into Jenkins. Great work!

[gibfahn]

@jkrems would appreciate a review from you if you have the time.

[maclover7]

@jkrems thank you for the neat git clone/checkout snippet!!

@gibfahn updated PR, for right now +1 on keep the shared bits inside this pipeline file, and then as we need to we can extract out to helper/utility files

[maclover7]

@refack@gibfahn updated this to take advantage of post-build-status-update, is this okay to land? (Someone will also need to create job on Jenkins since I'm not an admin)

[maclover7]

@gibfahn updated, would you be able to create the http parser job on Jenkins?

[gibfahn]

Job: https://ci.nodejs.org/view/All/job/node-test-http-parser/

Can you move this into jenkins/pipelines/?

[maclover7]

Can you move this into jenkins/pipelines/?

Fixed upon landing, landed in d094879b513beebff067617b08dc3f2b06364746.