python - uWSGI python子进程chrome/firefox失败

Question

我在使用 nginx 服务的 uWSGI 下有一个 python flask 应用程序。
python代码调用subprocess.Popen()运行浏览器(即 Firefox、Chrome)但 uWSGI 日志显示错误。
该错误与 linux(ubuntu) 标准命令有关，即 readlink , which , cat和别的。

我怀疑这是与用户访问相关的，但不确定。
uWSGI 服务使用我的用户和 www-data 运行。团体。

Python 代码

import subprocess

@app.route('/api/check/version', methods=['POST'])
def check_version():
    pid = subprocess.Popen(['/usr/bin/firefox', '--version'], stdout=subprocess.PIPE)
    #pid = subprocess.Popen(['/usr/bin/google-chrome', '--version'], stdout=subprocess.PIPE)
    data = pid.communicate()
    return  data

if __name__ == "__main__":
    check_version()

uWSGI 日志

**in case of doing Popen for /usr/bin/firefox
/usr/bin/firefox: 1: /usr/bin/firefox: which: not found

**in case of doing Popen for /usr/bin/google-chrome
/usr/bin/google-chrome-stable: line 8: readlink: command not found
/usr/bin/google-chrome-stable: line 10: dirname: command not found
/usr/bin/google-chrome-stable: line 46: exec: cat: not found
/usr/bin/google-chrome-stable: line 45: exec: cat: not found

uWSGI服务配置

[Unit]
Description=uWSGI instance to serve myproject
After=network.target

[Service]
User=myuser
Group=www-data
WorkingDirectory=/home/gbadmin/myproject
Environment="PATH=/home/gbadmin/myproject/myprojectenv/bin"
ExecStart=/home/gbadmin/myproject/myprojectenv/bin/uwsgi --ini myproject.ini

[Install]
WantedBy=multi-user.target

Answer 1

你给你的PATH一个过于限制性的值:

Environment="PATH=/home/gbadmin/myproject/myprojectenv/bin"

有问题的缺失命令通常出现在 /bin 中。或 /usr/bin ，将这些添加到路径变量可能会解决您的问题

Environment="PATH=/home/gbadmin/myproject/myprojectenv/bin:/usr/bin:/bin"