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我现在使用 Nginx 和 Docker 部署我的 Flask 应用程序。我的 docker 已启动并正在运行,但我总是得到 502 Bad Gateway nginx
当去端点之一时。
所以我删除了所有 docker 并重新构建它,然后在运行 docker-compose up -d
时出现此错误:
[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.
docker-compose.yml
:
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:
...
app/Dockerfile
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"]
home
-project_root
-docker-compose.yml
--app
---all other files
---Dockerfile
---requirements.txt
---wsgi.py
wsgi.py
:
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)
CMD
在
app\Dockerfile
由此:
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi"]
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "/home/project_root/app/wsgi.py"]
docker-compose up -d
时,我仍然遇到同样的错误。 .我是 docker 的新手,所以完全不知道是什么导致了错误以及我到底做错了什么。有人请帮忙。
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "wsgi:app"]
wsgi.py
外
app
像这样的文件夹:
home
-project_root
-docker-compose.yml
-wsgi.py
--app
---all other files
---Dockerfile
---requirements.txt
CMD [ "gunicorn", "-w", "4", "--bind", "0.0.0.0:5000", "/var/www/app/wsgi.py"]
flask | ModuleNotFoundError: No module named '/var/www/app/wsgi.py'
最佳答案
您可以尝试将您的项目结构变成这样吗
home
-project_root
-docker-compose.yml
-wsgi.py
-Dockerfile
-requirements.txt
--app
---all other files
Dockerfile
变成这样
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"]
关于python - 由于 ModuleNotFoundError : No module named 'wsgi' ,Flask 无法使用 Docker 启动服务器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/60603593/
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