linux python环境安装: https://blog.csdn.net/weixin_41934979/article/details/140528410
1.创建虚拟环境
python3.12 -m venv .venv
2.激活环境
. .venv/bin/activate3.安装依赖包(pip3.12 install -r requirements.txt)
pip3.12 install -r requirements.txt4.测试启动项目
python3.12 app.py
5.在虚拟环境中安装gunicorn
pip install gunicorn6.安装配置Supervisor
6.1安装Supervisor
CentOS
首先，安装 EPEL 扩展源（如果尚未安装）：
sudo yum install epel-release
然后，使用 yum 命令安装 Supervisor：
sudo yum install supervisorUbuntu
sudo apt install supervisor查看版本，确认supervisor是否成功安装
supervisord --version6.2配置supervisor
查看supervisor的配置
注意不同版本的Linux系统，不同版本supervisor，配置文件路径可能不同
CentOS
cat /etc/supervisord.conf主要配置代码如下(主要看[include]下的文件路径):
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = supervisord.d/*.iniUbuntu
cat /etc/supervisor/supervisord.conf; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = /etc/supervisor/conf.d/*.conf
创建.ini配置文件或者.conf配置文件(具体要看[include]下面路径是*.ini,还是*.conf)，
文件要放进 [include]下的文件路径里
这里以Ubuntu为例
再次提醒.conf配置文件，文件要放进：[include]下的文件路径里，
放进/etc/supervisor/conf.d路径里
创建文件flaskapi.conf配置文件
vi /etc/supervisor/conf.d/flaskapi.conf内容如下：
[program:flaskapi] ; :右边是项目名称
command=/bin/bash -c ". .venv/bin/activate&&nohup python -m gunicorn -D -w 4 -b 0.0.0.0:8011 -t 120 app:app --access-logfile access.log --error-logfile error.log" ; 启动虚拟环境下的gunicorn，这里建议使用绝对路径
directory=/usr/projects/flask-api ; 程序的启动目录，这里是Flask网站根目录
user=root ; 用户名
autostart=true ; 在 supervisord 启动的时候也自动启动
autorestart=true ; 程序异常退出后自动重启
stopasgroup=true ; 它表示当该进程停止时，与该进程属于同一组的所有相关进程也会同时停止
killasgroup=true ; "杀死"整个组的进程
loglevel=info ; 日志级别设置为“信息”级别6.3更新配置文件
supervisorctl update启动supervisor服务
systemctl enable supervisor查看服务状态
systemctl status supervisor.service
7.curl测试是否能访问接口
curl http://localhost:8011/ -w '\n'成功访问
8.重启服务器flask是否开机自启
重启后再次访问接口
curl http://localhost:8011/ -w '\n'服务开机自启成功
参考资料
https://blog.csdn.net/qq_39680564/article/details/102739143
