[英]Docker Image with uWSGI/Gunicorn + Nginx for Flask apps in CentOS
我一直在互联网上搜索使用uWSGI或Gunicorn和Nginx在CentOS 7环境中提供Flask应用程序的Docker映像的任何示例。 我发现的最接近的是它 ,它基于Ubuntu。 如何重新编写此Dockerfile以使用CentOS 7而非Ubuntu:
FROM ubuntu:14.04
MAINTAINER Phillip Bailey <phillip@bailey.st>
ENV DEBIAN_FRONTEND noninteractive
RUN apt-get update && apt-get install -y \
python-pip python-dev uwsgi-plugin-python \
nginx supervisor
COPY nginx/flask.conf /etc/nginx/sites-available/
COPY supervisor/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
COPY app /var/www/app
RUN mkdir -p /var/log/nginx/app /var/log/uwsgi/app /var/log/supervisor \
&& rm /etc/nginx/sites-enabled/default \
&& ln -s /etc/nginx/sites-available/flask.conf /etc/nginx/sites-enabled/flask.conf \
&& echo "daemon off;" >> /etc/nginx/nginx.conf \
&& pip install -r /var/www/app/requirements.txt \
&& chown -R www-data:www-data /var/www/app \
&& chown -R www-data:www-data /var/log
CMD ["/usr/bin/supervisord"]
这是具有最新centos基础,nginx和gunicorn的变体。 请注意,此配置仅是草图。 这样的设置存在几个安全问题(例如,flask应用程序以root身份运行),但我认为它概述了基于ubuntu进行设置的主要区别。
Dockerfile:
FROM centos:latest
MAINTAINER Deine Mudda<deine@mudda.co.uk>
RUN yum -y update && yum -y install python-setuptools epel-release
RUN yum -y install nginx && \
easy_install pip supervisor && \
echo_supervisord_conf > /etc/supervisord.conf
COPY nginx/nginx.conf /etc/nginx/nginx.conf
COPY nginx/flask.conf /etc/nginx/conf.d/
COPY supervisor/supervisord.conf /tmp/supervisord.conf
RUN cat /tmp/supervisord.conf >> /etc/supervisord.conf && \
rm /tmp/supervisord.conf
COPY app /app
RUN pip install -r /app/requirements.txt
CMD ["/usr/bin/supervisord","-nc","/etc/supervisord.conf"]
nginx.conf(这是默认的回购版本,其中删除了一些centos的怪癖):
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
daemon off;
events {
worker_connections 1024;
}
http {
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
include /etc/nginx/conf.d/*.conf;
}
flask.conf:
upstream flask {
server 127.0.0.1:8080;
}
server {
listen 80;
location / {
proxy_pass http://flask;
}
}
administratord.conf:
[program:flask]
directory=/app
command=gunicorn --bind 0.0.0.0:8080 app:app
autostart=true
autorestart=true
[program:nginx]
command=/usr/sbin/nginx
autostart=true
autorestart=true
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