Script to get a github actions runner token (no dependencies)

gh-runner-token.py

#!/usr/bin/env python3

import urllib.request
import urllib.parse as req_parse
import os
import json

GITHUB_API = os.getenv("GITHUB_API", "https://api.github.com/{}")
RUNNER_SCOPE = os.getenv("GITHUB_API", "repo")
GITHUB_OWNER = os.getenv("GITHUB_OWNER")
GITHUB_REPO = os.getenv("GITHUB_REPO")
GITHUB_PAT = os.getenv("GITHUB_PAT")


def get_token():
    req = urllib.request.Request(GITHUB_API.format(f"repos/{GITHUB_OWNER}/{GITHUB_REPO}/actions/runners/registration-token"))
    req.add_header('Accept', 'application/vnd.github.v3+json"')
    req.add_header('Authorization', f'token {GITHUB_PAT}')
    r = urllib.request.urlopen(req, data=req_parse.urlencode({}).encode('ascii'))
    token = json.loads(r.read().decode('utf-8'))
    print(json.dumps(token))


def check_config():
    assert GITHUB_PAT is not None, "GitHub Personal Access Token is required!"
    if RUNNER_SCOPE == "repo":
        assert GITHUB_REPO is not None, "GitHub repository is required!"
        get_token()
    else:
        raise Exception("Scope not supported!")


if __name__ == '__main__':
    check_config()