在docker上发布netcore 遇到的坑：

Nginx

1.准备工作：

创建nginx的挂载目录：
[root@xx/] mkdir -p ~/my/nginx/www ~/my/nginx/logs ~/my/nginx/conf.d ~/my/nginx/cert

拷贝容器内 Nginx 默认配置文件到本地当前目录下的nginx 目录

[root@xx/] docker cp nginx容器ID:/etc/nginx/nginx.conf ~/mynginx

说明：

• www: 目录将映射为 nginx 容器配置的虚拟目录。
• logs: 目录将映射为 nginx 容器的日志目录。
• conf: 目录里的配置文件将映射为 nginx 容器的配置文件。
• cert: 目录里的配置文件将映射为 nginx 容器的ssl证书。

docker run --name nginx -p 443:443 -p 80:80 -v /my/nginx/www:/usr/share/nginx/html -v /my/nginx/nginx.conf:/etc/nginx/nginx.conf -v /my/nginx/conf.d:/etc/nginx/conf.d -v /my/nginx/logs:/var/log/nginx -v /my/nginx/cert:/etc/nginx/cert -d nginx

nginx.conf配置：

user  nginx;
worker_processes  1;
 
error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;
 
events {
    worker_connections  1024;
}
 
http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    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;
 
    keepalive_timeout  65;
    #gzip  on;
    include /etc/nginx/conf.d/*.conf;
}

站点conf配置（放在宿主机/etc/nginx/conf.d目录）

   upstream lol580 
    {
        server 172.17.0.1:5000 max_fails=5 fail_timeout=60s; 
    } 
    server {
        listen  80;
        server_name  www.lol580.com;
        access_log /var/log/nginx/lol580.access.log main;
        error_log /var/log/nginx/lol580.error.log error;
        location / {
            proxy_set_header  Host  $http_host;
            proxy_set_header  X-Real-IP  $remote_addr;
            proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass  http://172.17.0.1:5000/;
    }
}
 

坑：

1.connect() failed (111

connect() failed (111: Connection refused) while connecting to upstream

> 解决方案：为nginx在docker中，所以不能使用127.0.0.1:5000来访问宿主机里的应用，docker内部实际上实现了一个虚拟网桥docker0，所以要通过宿主机内网地址（172.17.0.1）来访问.
>通过ifconfig命令 查看docker0的内网ip为172.17.0.1

2.nginx connect() failed 113

nginx connect() failed (113: No route to host) while connecting to upstream
>解决方案：
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动

3.upstream sent unsupported FastCGI protocol

[error] 6#6: *1 upstream sent unsupported FastCGI protocol version: 72 while reading response header from upstream, client: 183.69.235.66, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:80", host: "doc.lol580.com"
解决方案：
配置文件如下：
server {    
listen 443 ssl;
server_name www.xx.com;
charset utf-8;
        ssl_certificate   /etc/nginx/cert/wwwxxcom.pem;
        ssl_certificate_key  /etc/nginx/cert/wwwxxcom.key;
        ssl_session_timeout 5m;      
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;  #使用此加密套件。
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;   #使用该协议进行配置。
ssl_prefer_server_ciphers on;  
        location / {
            proxy_pass http://172.17.0.1:5000; 
        }
}

server {
 listen 80;
 server_name www.xx.com;   #将localhost修改为您证书绑定的域名，例如：www.example.com。
rewrite ^(.*)$ https://$host$1 permanent;   #将所有http请求通过rewrite重定向到https。
 location / {
proxy_pass http://172.17.0.1:5000; 
}
}