解决了Gunicorn下Flask的TemplateNotFound错误

Question

我有一个Flask应用程序,我正在尝试使用Gunicorn和nginx进行部署.但是,虽然它在本地工作正常,但是当我在远程服务器上运行Gunicorn时会抛出TemplateNotFound错误.

我不确定如何开始调试这个,更不用说为什么它会失败...如果不是后者,我会喜欢前者的帮助.我想也许这是一个权限问题,所以chmod将模板文件夹改为777 ...没有运气.以下是所有相关细节:

安装脚本

从裸Ubuntu 10.04安装开始,我运行它来设置服务器并提取我的代码:https://github.com/total-impact/total-impact-deploy/blob/master/deploy.sh.然后我把这个nginx配置文件放在/ etc/nginx/sites-available/total-impact:

server {
    location / {
        proxy_pass http://127.0.0.1:8000;
    }
}

最后,我浏览app目录并运行gunicorn web:app,然后点击服务器的IP地址.这会在浏览器中生成500,并在命令行上输出:

堆栈跟踪:

root@jc:/home/ti/total-impact-webapp/totalimpactwebapp# gunicorn web:app2012-05-28 23:15:06 [15313] [INFO] Starting gunicorn 0.14.3
2012-05-28 23:15:06 [15313] [INFO] Listening at: http://127.0.0.1:8000 (15313)
2012-05-28 23:15:06 [15313] [INFO] Using worker: sync
2012-05-28 23:15:06 [15316] [INFO] Booting worker with pid: 15316
2012-05-28 23:15:12,274 - totalimpactwebapp.core - ERROR - Exception on / [GET]
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/flask/app.py", line 1292, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python2.6/dist-packages/flask/app.py", line 1062, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python2.6/dist-packages/flask/app.py", line 1060, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python2.6/dist-packages/flask/app.py", line 1047, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/ti/total-impact-webapp/totalimpactwebapp/web.py", line 60, in home
    return render_template('index.html', commits=False)
  File "/usr/local/lib/python2.6/dist-packages/flask/templating.py", line 120, in render_template
    return _render(ctx.app.jinja_env.get_template(template_name),
  File "/usr/local/lib/python2.6/dist-packages/jinja2/environment.py", line 719, in get_template
    return self._load_template(name, self.make_globals(globals))
  File "/usr/local/lib/python2.6/dist-packages/jinja2/environment.py", line 693, in _load_template
    template = self.loader.load(self, name, globals)
  File "/usr/local/lib/python2.6/dist-packages/jinja2/loaders.py", line 115, in load source, filename, uptodate = self.get_source(environment, name)
  File "/usr/local/lib/python2.6/dist-packages/flask/templating.py", line 61, in get_source
    raise TemplateNotFound(template)
TemplateNotFound: index.html

Answer 1

你的模板是[app root]/templates /吗？

如果是这样,请检查以确保您的路径正确.将此作为处理主页的视图中的第一行:

return app.root_path

如果这是您期望看到的 - 或者您正在使用蓝图或其他方法以某种方式更改默认的Jinja环境 - 它会更复杂一些.

奇怪的是,Jinja似乎没有jinja2.Environment.FileSystemLoader.get_search_path()方法.我以为它会有一个:(