知識點

supervisor配置與使用
nginx配置

1. supervisor

為了統一管理Tornado的多個進程，我們可以借助supervisor工具。

安裝

sudo pip install supervisor

配置

運行echo_supervisord_conf命令輸出默認的配置項，可以如下操作將默認配置保存到文件中

echo_supervisord_conf > supervisord.conf

vim 打開編輯supervisord.conf文件，修改

[include]
files = relative/directory/*.ini

為

[include]
files = /etc/supervisor/*.conf

include選項指明包含的其他配置文件。

將編輯后的supervisord.conf文件復制到/etc/目錄下

sudo cp supervisord.conf /etc/

然后我們在/etc目錄下新建子目錄supervisor（與配置文件里的選項相同），并在/etc/supervisor/中新建tornado管理的配置文件tornado.conf。

[group:tornadoes]
programs=tornado-8000,tornado-8001,tornado-8002,tornado-8003

[program:tornado-8000]
command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat    /server.py --port=8000
directory=/home/python/Documents/demo/chat
user=python
autorestart=true
redirect_stderr=true
stdout_logfile=/home/python/tornado.log
loglevel=info

[program:tornado-8001]
command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat    /server.py --port=8001
directory=/home/python/Documents/demo/chat
user=python
autorestart=true
redirect_stderr=true
stdout_logfile=/home/python/tornado.log
loglevel=info

[program:tornado-8002]
command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat    /server.py --port=8002
directory=/home/python/Documents/demo/chat
user=python
autorestart=true
redirect_stderr=true
stdout_logfile=/home/python/tornado.log
loglevel=info

[program:tornado-8003]
command=/home/python/.virtualenvs/tornado_py2/bin/python /home/python/Documents/demo/chat    /server.py --port=8003
directory=/home/python/Documents/demo/chat
user=python
autorestart=true
redirect_stderr=true
stdout_logfile=/home/python/tornado.log
loglevel=info

啟動

supervisord -c /etc/supervisord.conf

查看 supervisord 是否在運行：

ps aux | grep supervisord

supervisorctl

我們可以利用supervisorctl來管理supervisor。

supervisorctl

> status    # 查看程序狀態
> stop tornadoes:*   # 關閉 tornadoes組 程序
> start tornadoes:*  # 啟動 tornadoes組 程序
> restart tornadoes:*    # 重啟 tornadoes組 程序
> update    ＃ 重啟配置文件修改過的程序

執行status命令時，顯示如下信息說明tornado程序運行正常：

supervisor> status
tornadoes:tornado-8000 RUNNING pid 32091, uptime 00:00:02
tornadoes:tornado-8001 RUNNING pid 32092, uptime 00:00:02
tornadoes:tornado-8002 RUNNING pid 32093, uptime 00:00:02
tornadoes:tornado-8003 RUNNING pid 32094, uptime 00:00:02

2. nginx

對于使用ubuntu apt-get 安裝nginx，其配置文件位于/etc/nginx/sites-available中，修改default文件如下：

upstream tornadoes {
    server 127.0.0.1:8000;
    server 127.0.0.1:8001;
    server 127.0.0.1:8002;
    server 127.0.0.1:8003;
}

upstream websocket {
    server 127.0.0.1:8000;
}

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name _;
    location /static/ {
        root /home/python/Documents/demo/chat;
        if ($query_string) {
            expires max;
        }
    }

    location /chat {
        proxy_pass http://websocket/chat;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

    location / {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;  # 協議 http https
        proxy_pass http://tornadoes;
    }
}

啟動nginx

service nginx start   # 啟動
service nginx stop    # 停止
service nginx restart # 重啟

源碼安裝版本

啟動：sudo sbin/nginx
停止：sudo sbin/nginx -s stop
重啟：sudo sbin/nginx -s reload

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