Centos7系统下搭建.NET Core2.0+Nginx+Supervisor环境

systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动
firewall-cmd --state #查看默认防火墙状态（关闭后显示notrunning，开启后显示running）

sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config

[root@localhost ~]# cat /etc/selinux/config 
 
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#   enforcing - SELinux security policy is enforced.
#   permissive - SELinux prints warnings instead of enforcing.
#   disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
#   targeted - Targeted processes are protected,
#   minimum - Modification of targeted policy. Only selected processes are protected. 
#   mls - Multi Level Security protection.
SELINUXTYPE=targeted

reboot

rpm --import https://packages.microsoft.com/keys/microsoft.asc                   
sh -c 'echo -e "[packages-microsoft-com-prod]nname=packages-microsoft-com-prod nbaseurl=https://packages.microsoft.com/yumrepos/microsoft-rhel7.3-prodnenabled=1ngpgcheck=1ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" > /etc/yum.repos.d/dotnetdev.repo'

yum update
yum install libunwind libicu -y
yum install dotnet-sdk-2.0.0 -y

dotnet --info
dotnet --version

cd /home
dotnet new console -o hwapp
cd hwapp
dotnet run

[root@localhost hwapp]# dotnet run
Hello World! 

cd /home/WebApplication1
dotnet restore  //如果使过用测试方式一，就需先执行这命令重新加载一下当前新的网站文件
dotnet run

[root@localhost ~]#curl -o nginx.rpm http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
[root@localhost ~]#rpm -ivh nginx.rpm
[root@localhost ~]#yum install nginx -y

[root@localhost ~]# systemctl start nginx

[root@localhost ~]#systemctl enable nginx
Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.

[root@localhost nginx-1.8.1]# ps -ef|grep nginx
root   14626   1 0 08:47 "" src="/UploadFiles/2021-04-10/20181011102735865.png">

nginx常用的操作命令
systemctl start nginx.service             　 #启动nginx服务
systemctl enable nginx.service             #设置开机自启动
systemctl disable nginx.service            #停止开机自启动
systemctl status nginx.service             #查看服务当前状态
systemctl restart nginx.service　          #重新启动服务
systemctl list-units –type=service        #查看所有已启动的服务
4.防火墙配置(如果系统有防火墙就需要进行写入规则）
命令：firewall-cmd –zone=public –add-port=80/tcp –permanent（开放80端口）
命令：systemctl restart firewalld（重启防火墙以使配置即时生效）
5.配置nginx对ASP.NET Core应用的转发
修改 /etc/nginx/conf.d/default.conf 文件。
将文件内容替换为


server {
  listen 80;
  location / {
    proxy_pass http://localhost:88;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection keep-alive;
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
  }
}


 重新加载nignx


[root@localhost nginx]# nginx -s reload


nginx的配置己完成
6.开启dotnet run进行测试


[root@localhost ~]# cd /home/WebApplication1/
[root@localhost WebApplication1]# dotnet run
Using launch settings from /home/WebApplication1/Properties/launchSettings.json...
Hosting environment: Development
Content root path: /home/WebApplication1
Now listening on: http://[::]:88
Application started. Press Ctrl+C to shut down.


通过IP 80端口访问

六、配置守护服务（Supervisor）
目前存在三个问题
问题1：ASP.NET Core应用程序运行在shell之中，如果关闭shell则会发现ASP.NET Core应用被关闭，从而导致应用无法访问，这种情况当然是我们不想遇到的，而且生产环境对这种情况是零容忍的。
问题2：如果ASP.NET Core进程意外终止那么需要人为连进shell进行再次启动，往往这种操作都不够及时。
问题3：如果服务器宕机或需要重启我们则还是需要连入shell进行启动。
为了解决这个问题，我们需要有一个程序来监听ASP.NET Core 应用程序的状况。在应用程序停止运行的时候立即重新启动。这边我们用到了Supervisor这个工具，Supervisor使用Python开发的。
1.安装Supervisor


[root@localhost /]# yum install python-setuptools -y
[root@localhost /]#easy_install supervisor


2.配置Supervisor


[root@localhost /]#mkdir /etc/supervisor
[root@localhost /]#echo_supervisord_conf > /etc/supervisor/supervisord.conf


修改supervisord.conf文件，将文件尾部的配置


[root@localhost /]# vi /etc/supervisor/supervisord.conf


将里面的最后两行:


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


 改为


[include]
files = conf.d/*.conf


ps:如果服务已启动，修改配置文件可用“supervisorctl reload”命令来使其生效
3.配置对ASP.NET Core应用的守护
创建一个 WebApplication1.conf文件，内容大致如下


[root@localhost /]# vi WebApplication1.conf
[program:WebApplication1]
command=dotnet WebApplication1.dll ; 运行程序的命令
directory=/home/WebApplication1/ ; 命令执行的目录
autorestart=true ; 程序意外退出是否自动重启
stderr_logfile=/var/log/WebApplication1.err.log ; 错误日志文件
stdout_logfile=/var/log/WebApplication1.out.log ; 输出日志文件
environment=ASPNETCORE_ENVIRONMENT=Production ; 进程环境变量
user=root ; 进程执行的用户身份
stopsignal=INT


将文件拷贝至：“/etc/supervisor/conf.d/WebApplication1.conf”下


[root@localhost /]#mkdir /etc/supervisor/conf.d
[root@localhost /]#cp WebApplication1.conf /etc/supervisor/conf.d/


运行supervisord，查看是否生效


[root@localhost /]#supervisord -c /etc/supervisor/supervisord.confsupervisord -c /etc/supervisor/supervisord.conf
[root@localhost /]# ps -ef | grep WebApplication1
root   29878 29685 0 09:57 "" src="/UploadFiles/2021-04-10/20181011102739028.png">

至此关于ASP.NET Core应用程序的守护即配置完成。
Supervisor守护进程常用操作
【启动supervisord】

确保配置无误后可以在每台主机上使用下面的命令启动supervisor的服务器端supervisord

supervisord
【停止supervisord】     

supervisorctl shutdown
【重新加载配置文件】

supervisorctl reload
七 、配置Supervisor开机启动


新建一个“supervisord.service”文件


[root@localhost /]# vi supervisord.service
# dservice for systemd (CentOS 7.0+)
# by ET-CS (https://github.com/ET-CS)
[Unit]
Description=Supervisor daemon
[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c /etc/supervisor/supervisord.conf
ExecStop=/usr/bin/supervisorctl shutdown
ExecReload=/usr/bin/supervisorctl reload
KillMode=process
Restart=on-failure
RestartSec=42s
[Install]
WantedBy=multi-user.target


 将文件拷贝至：“/usr/lib/systemd/system/supervisord.service”


[root@localhost /]# cp supervisord.service /usr/lib/systemd/system/


 执行命令：systemctl enable supervisord


[root@localhost /]# systemctl enable supervisord
Created symlink from /etc/systemd/system/multi-user.target.wants/supervisord.service to /usr/lib/systemd/system/supervisord.service.


执行命令：systemctl is-enabled supervisord #来验证是否为开机启动


[root@localhost /]# systemctl is-enabled supervisord


重启系统看能否能成功访问


[root@localhost /]# reboot


 
以上既是 Centos7系统下搭建.NET Core2.0+Nginx+Supervisor+Mysql环境的详细方法，希望对大家有所帮助