Getting Jenkins BUILD environment variables from within a python script

Question

Jenkins version: 2.74

As part of my build step I am running a python script and was hoping to access Jenkins build variables like BUILD_ID, BUILD_NUMBER, BUILD_URL etc.

I did the following in my script just to try it out but did not see any of the keys above listed:

import os

print os.environ

Output:

{
    'USERNAME': 'root',
    'LANG': 'en_US.UTF-8',
    'TERM': 'xterm-256color',
    'SHELL': '/bin/bash',
    'XDG_RUNTIME_DIR': '/run/user/1000',
    'SUDO_COMMAND': '/bin/su myuser -c python jenkinstest.py',
    'SHLVL': '1',
    'HOME': '/usr/home1/myuser',
    'SUDO_UID': '117',
    'SUDO_GID': '125',
    'PWD': '/var/lib/jenkins/workspace/script-test',
    'LOGNAME': 'myuser',
    'USER': 'myuser',
    'PATH': '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games',
    'MAIL': '/var/mail/myuser',
    'SUDO_USER': 'jenkins',
    'XDG_SESSION_ID': '6',
    '_': '/usr/bin/python'
}

Why so?

And how can I access the keys I mentioned above from within the python script (without using the Jenkins python/json API) ?

when using sudo You must pay attention to the option --preserve-env, without it env variables are lost when switching user context. — Take_Care_
– Take_Care_, Commented Aug 23, 2017 at 22:00

Take_Care_ · Accepted Answer · 2017-08-24 07:47:59Z

2

When using sudo You must pay attention to the option --preserve-env, without it env variables are lost when switching user context.

answered Aug 24, 2017 at 7:47

Take_Care_

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