CentOS7下让Asp.Net Core的网站自动运行

安装新版本的Nginx（vim /etc/yum.repos.d/nginx.repo）

[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true
[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

yum-config-manager --enable nginx-mainline

一、安装Nginx

yum install nginx

二、配置Nginx

vi /etc/nginx/nginx.conf

location / {
            proxy_pass http://127.0.0.1:5000;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection keep-alive;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_cache_bypass $http_upgrade;
        }

 如果启动Nginx失败，提示bind() to 0.0.0.0:8000 failed (13: Permission denied)则需要在SElinux中把自定义端口加入（默认SELinux只允许80, 81, 443, 488, 8008, 8009, 8443, 9000提供Http服务）

semanage port -l | grep http_port_t
yum install policycoreutils-python.x86_64
semanage port -a -t http_port_t -p tcp 8088
#如果添加端口的时候提示 ValueError: 已定义端口，则使用下面的命令，覆盖配置
# semanage port -m -t http_port_t -p tcp 8000 //覆盖
# semanage port -d -t http_port_t -p tcp 6033 //删除

打开Nginx的Web链接状态查看

在nginx.conf配置中增加一个配置(务必注意access_log的配置文件夹是否存在)

location /Nginxstatus {
           stub_status on;
           access_log /usr/local/nginx/logs/status.log;
           auth_basic "NginxStatus";
        }

查看结果说明:

Active connections    //当前 Nginx 正处理的活动连接数

server accepts handledrequests  //总共处理了n个连接,成功创建y次握手,总共处理了z个请求.

Reading         //nginx 读取到客户端的 Header 信息数.

Writing         //nginx 返回给客户端的 Header 信息数.

Waiting         //开启 keep-alive 的情况下,这个值等于active-(reading+writing),意思就是Nginx已经处理完正在等候下一次请求指令的驻留连接.

三、设置Nginx开机启动

systemctl enable nginx.service

四、安装守护进程工具

方法一：

yum install python-setuptools
wget https://files.pythonhosted.org/packages/d3/7f/c780b7471ba0ff4548967a9f7a8b0bfce222c3a496c3dfad0164172222b0/supervisor-4.2.2.tar.gz

tar -zxvf supervisor-4.2.2.tar.gz
cd supervisor-4.2.2
python setup.py install

# 检查是否正常安装
supervisord -v
4.2.2
# 生成配置文件
mkdir -p /etc/supervisor/conf.d
echo_supervisord_conf > /etc/supervisor/supervisord.conf

方法二：yum install supervisor

配置/etc/supervisor/supervisord.conf

[supervisord]
logfile=/tmp/supervisord.log ; main log file; default $CWD/supervisord.log
logfile_maxbytes=50MB        ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10           ; # of main logfile backups; 0 means none, default 10
loglevel=info                ; log level; default info; others: debug,warn,trace
pidfile=/tmp/supervisord.pid ; supervisord pidfile; default supervisord.pid
nodaemon=false               ; start in foreground if true; default false
 
# 重要
minfds=655350                  ; min. avail startup file descriptors; default 1024
minprocs=65535                 ; min. avail process descriptors;default 200 
 
[include]
files = /etc/supervisor/conf.d/*.conf

五、配置守护进程信息

cd /etc/supervisord.d

vi videoserver.ini  (注意program:后面的名字是唯一的)

[program:VideoServer.Site]
command=dotnet VideoCheckServer.dll
directory=/usr/bin/videoserver
environment=ASPNETCORE__ENVIRONMENT=Production
user=root
stopsignal=INT
autostart=true
autorestart=true
startsecs=3
stderr_logfile=/var/log/videoserver.err.log    
stdout_logfile=/var/log/videoserver.out.log

supervisord -c /etc/supervisord.conf

六、设置开机启动守护工具

systemctl enable supervisord.service

如果要显示验证码，需要安装libgdiplus：

sudo yum install libgdiplus

yum install libtiff libtiff-devel libjpeg libjpeg-devel giflib giflib-devel libpng libpng-devel libX11 libX11-devel freetype 

rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

yum install libgdiplus-devel

如果安装 libgidplus提示缺少glib-2.0  就先安装：

yum install glib2-devel cairo-devel -y 

然后执行 

./configure --prefix=/usr/local && make && install

 

Ubuntu在线安装.NET Core SDK流程：

1、将 Microsoft 包签名密钥添加到受信任密钥列表，并添加包存储库。

wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
rm packages-microsoft-prod.deb

2、安装 .NET Core SDK 6.0

sudo apt-get update; \
sudo apt-get install -y apt-transport-https && \
sudo apt-get update && \
sudo apt-get install -y dotnet-sdk-6.0

如果只需要安装asp.netcore运行时，则上述最后一句换成

sudo apt-get install -y aspnetcore-runtime-6.0