文档建议反馈控制台
首页
学习
活动
专区
圈层
工具
MCP广场
文章/答案/技术大牛
发布
社区首页 >问答首页 >烧瓶无法使用Docker启动服务器，因为ModuleNotFoundError:没有名为“wsgi”的模块

问烧瓶无法使用Docker启动服务器，因为ModuleNotFoundError:没有名为“wsgi”的模块
EN

Stack Overflow用户
提问于 2020-03-09 15:22:16
回答 2查看 2.5K关注 0票数 1

现在我使用Nginx和Docker部署了我的Flask应用程序。我的码头已经启动并运行，但是当我运行一个端点时，我总是会得到502 Bad Gateway nginx。

因此，我删除所有的停靠程序并重新构建它，然后在运行docker-compose up -d时得到这个错误：

代码语言：javascript
复制
[2020-03-09 15:00:11 +0000] [1] [INFO] Starting gunicorn 19.7.1
flask        | [2020-03-09 15:00:11 +0000] [1] [INFO] Listening at: http://0.0.0.0:5000 (1)
flask        | [2020-03-09 15:00:11 +0000] [1] [INFO] Using worker: sync
flask        | [2020-03-09 15:00:11 +0000] [7] [INFO] Booting worker with pid: 7
flask        | [2020-03-09 15:00:11 +0000] [7] [ERROR] Exception in worker process
flask        | Traceback (most recent call last):
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/arbiter.py", line 578, in spawn_worker
flask        |     worker.init_process()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 126, in init_process
flask        |     self.load_wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 135, in load_wsgi
flask        |     self.wsgi = self.app.wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/base.py", line 67, in wsgi
flask        |     self.callable = self.load()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
flask        |     return self.load_wsgiapp()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
flask        |     return util.import_app(self.app_uri)
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/util.py", line 352, in import_app
flask        |     __import__(module)
flask        | ModuleNotFoundError: No module named 'wsgi'
flask        | [2020-03-09 15:00:11 +0000] [7] [INFO] Worker exiting (pid: 7)
flask        | [2020-03-09 15:00:11 +0000] [8] [INFO] Booting worker with pid: 8
flask        | [2020-03-09 15:00:11 +0000] [8] [ERROR] Exception in worker process
flask        | Traceback (most recent call last):
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/arbiter.py", line 578, in spawn_worker
flask        |     worker.init_process()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 126, in init_process
flask        |     self.load_wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 135, in load_wsgi
flask        |     self.wsgi = self.app.wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/base.py", line 67, in wsgi
flask        |     self.callable = self.load()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
flask        |     return self.load_wsgiapp()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
flask        |     return util.import_app(self.app_uri)
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/util.py", line 352, in import_app
flask        |     __import__(module)
flask        | ModuleNotFoundError: No module named 'wsgi'
flask        | [2020-03-09 15:00:11 +0000] [8] [INFO] Worker exiting (pid: 8)
flask        | [2020-03-09 15:00:11 +0000] [9] [INFO] Booting worker with pid: 9
flask        | [2020-03-09 15:00:11 +0000] [9] [ERROR] Exception in worker process
flask        | Traceback (most recent call last):
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/arbiter.py", line 578, in spawn_worker
flask        |     worker.init_process()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 126, in init_process
flask        |     self.load_wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/workers/base.py", line 135, in load_wsgi
flask        |     self.wsgi = self.app.wsgi()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/base.py", line 67, in wsgi
flask        |     self.callable = self.load()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
flask        |     return self.load_wsgiapp()
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
flask        |     return util.import_app(self.app_uri)
flask        |   File "/usr/local/lib/python3.6/site-packages/gunicorn/util.py", line 352, in import_app
flask        |     __import__(module)
flask        | ModuleNotFoundError: No module named 'wsgi'
flask        | [2020-03-09 15:00:11 +0000] [9] [INFO] Worker exiting (pid: 9)
flask        | [2020-03-09 15:00:11 +0000] [1] [INFO] Shutting down: Master
flask        | [2020-03-09 15:00:11 +0000] [1] [INFO] Reason: Worker failed to boot.

这意味着我的Flask服务无法构建，因此应用服务器Nginx没有运行，根据这个answer.But，我不知道哪里出了问题。

这是我的docker-compose.yml

代码语言：javascript
复制
  version: '3'
  services:

  flask:
    build:
      context: app
      dockerfile: Dockerfile
    container_name: flask
    image: digitalocean.com/flask-python:3.6
    restart: unless-stopped
    environment:
      APP_ENV: "prod"
      APP_DEBUG: "False"
      APP_PORT: 5000  

  service_2: 
     ...

  service_3:
    ...

这是我的app/Dockerfile

代码语言：javascript
复制
FROM python:3.6.8-alpine3.9

WORKDIR /var/www/

ADD . /var/www/
RUN apk add --no-cache build-base libffi-dev openssl-dev ncurses-dev

RUN python -m pip install --upgrade pip
RUN pip install -r requirements.txt // gunicorn is install inside requirements.txt

EXPOSE 5000

CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi"]

这是我的项目目录，如：

代码语言：javascript
复制
home
-project_root
-docker-compose.yml
--app
---all other files
---Dockerfile
---requirements.txt
---wsgi.py

这是我的wsgi.py：

代码语言：javascript
复制
import os
from app import create_app
from flask_cors import CORS

app = create_app()
cors = CORS(app)

if __name__ == '__main__':
    ENVIRONMENT_DEBUG = os.environ.get("APP_DEBUG", True)
    ENVIRONMENT_PORT = os.environ.get("APP_PORT", 5000)
    app.run(host='0.0.0.0', port=ENVIRONMENT_PORT, debug=ENVIRONMENT_DEBUG)

我尝试了什么：

根据这个answer，我将app\Dockerfile中的CMD从以下内容中更改：

代码语言：javascript
复制
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi"]

对此：

代码语言：javascript
复制
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "/home/project_root/app/wsgi.py"]

但是在码头上运行docker-compose up -d.I新手时，I仍然得到相同的错误，所以完全不知道是什么导致了错误，也不知道我到底做错了什么。谁来帮帮忙。

更新：

根据这个answer，以及下面的答案，我尝试像这样运行这个命令：

代码语言：javascript
复制
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi:app"]

仍然会犯同样的错误。

如果我像这样将wsgi.py移到app文件夹之外：

代码语言：javascript
复制
home
    -project_root
    -docker-compose.yml
    -wsgi.py
    --app
    ---all other files
    ---Dockerfile
    ---requirements.txt

也有同样的错误。

更新2:

我将CMD更改如下：

代码语言：javascript
复制
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "/var/www/app/wsgi.py"]

现在我得到了这样的错误：

代码语言：javascript
复制
flask        | ModuleNotFoundError: No module named '/var/www/app/wsgi.py'
python
docker
nginx
flask
gunicorn
EN

回答 2

Stack Overflow用户

回答已采纳

发布于 2020-03-12 03:45:01

你能试着用你的项目结构像这样吗？

代码语言：javascript
复制
home
    -project_root
    -docker-compose.yml
    -wsgi.py
    -Dockerfile
    -requirements.txt
    --app
    ---all other files

你的Dockerfile就像这样

代码语言：javascript
复制
FROM python:3.6.8-alpine3.9

WORKDIR /var/www/

ADD . /var/www/
RUN apk add --no-cache build-base libffi-dev openssl-dev ncurses-dev

RUN python -m pip install --upgrade pip
RUN pip install -r requirements.txt // gunicorn is install inside requirements.txt

EXPOSE 5000

CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi:app"]
票数 2
EN

Stack Overflow用户

发布于 2020-03-09 15:50:47

你应该指着wsgi.app吗？运行此命令是否解决了问题？

CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi:app"]

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/60603593

复制
相关文章

相似问题

领券

腾讯云开发者

扫码关注腾讯云开发者

扫码关注腾讯云开发者

领取腾讯云代金券

热门产品

热门推荐

更多推荐

Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有 

深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 粤公网安备44030502008569号

腾讯云计算（北京）有限责任公司 京ICP证150476号 |  京ICP备11018762号

问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档