现在,可以使用自定义运行时在App Engine Flex上完成此操作,因此我要添加此答案,因为此问题是在Google中弹出的第一件事。
我将此自定义运行时基于其他使用预先构建的python运行时的GAE flex微服务
项目结构:
webdrivers/- geckodriverapp.yamlDockerfilemain.pyrequirements.txt
app.yaml:
service: my-app-engine-service-nameruntime: customenv: flexentrypoint: gunicorn -b :$PORT main:app --timeout 180
Dockerfile:
FROM gcr.io/google-appengine/pythonRUN apt-get updateRUN apt-get install -y xvfbRUN apt-get install -y firefoxLABEL python_version=pythonRUN virtualenv --no-download /env -p pythonENV VIRTUAL_ENV /envENV PATH /env/bin:$PATHADD requirements.txt /app/RUN pip install -r requirements.txtADD . /app/CMD exec gunicorn -b :$PORT main:app --timeout 180
requirements.txt:
Flask==0.12.2gunicorn==19.7.1selenium==3.13.0pyvirtualdisplay==0.2.1
main.py
import osimport tracebackfrom flask import Flask, jsonify, Responsefrom selenium import webdriverfrom pyvirtualdisplay import Displayapp = Flask(__name__)# Add the webdrivers to the pathos.environ['PATH'] += ':'+os.path.dirname(os.path.realpath(__file__))+"/webdrivers"@app.route('/')def hello(): return 'Hello!!'@app.route('/test/', methods=['GET'])def go_headless(): try: display = Display(visible=0, size=(1024, 768)) display.start() d = webdriver.Firefox() d.get("http://www.python.org") page_source = d.page_source.enpre("utf-8") d.close() display.stop() return jsonify({'success': True, "result": page_source[:500]}) except Exception as e: print traceback.format_exc() return jsonify({'success': False, 'msg': str(e)})if __name__ == '__main__': app.run(host='127.0.0.1', port=8080, debug=True)从此处下载geckodriver(linux 64):
https://github.com/mozilla/geckodriver/releases
其他说明:
- 请注意您正在使用的geckodriver,firefox和selenium的版本,因为它可能是finnickey,出现此错误
WebDriverException: Message: Can't load the profile. Possible firefox version mismatch. You must use GeckoDriver instead for Firefox 48+. Profile Dir: /tmp/tmp 48P If you specified a log_file in the FirefoxBinary constructor, check it for details.
- 除非您使用旧版geckodriver / firefox,否则请勿设置
DesiredCapabilities().FIREFOX["marionette"] = False
https://github.com/SeleniumHQ/selenium/issues/5106 display = Display(visible=0, size=(1024, 768))
需要修复此错误:如何修复Selenium WebDriverException:在连接之前,浏览器似乎已退出?
要在本地测试:
docker build . -t my-docker-image-tagdocker run -p 8080:8080 --name=my-docker-container-name my-docker-image-tag
部署到应用引擎:
gcloud app deploy app.yaml --version dev --project my-app-engine-project-id



