nginx配置微服务的网关和负载均衡

     nginx配置微服务的网关和负载均衡                  nginx配置微服务的网关和负载均衡利用Nginx配置上游服务器配置位置：[http块]配置upstream：nginx.conf源文件：usernginx;worker_processes1;error_log/var/log/nginx/error.logwarn;pid/var/run/nginx.pid;events{worker_connections1024;}http{include/etc/nginx/mime.types;default_typeapplication/octet-stream;log_formatmain'$remote_addr-$remote_user[$time_local]"$request"''$status$body_bytes_sent"$http_referer"''"$http_user_agent""$http_x_forwarded_for"';access_log/var/log/nginx/access.logmain;sendfileon;#tcp_nopushon;keepalive_timeout65;#gzipon;include/etc/nginx/conf.d/*.conf;}拿出http块代码：http{include/etc/nginx/mime.types;default_typeapplication/octet-stream;log_formatmain'$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.logmain;sendfileon;#tcp_nopushon;keepalive_timeout65;#gzipon;######配置聚焦看这里##上游服务器组整个组起名字servernameupstreamservername{##每个服务器试用server标签写上服务地址##微服务网关gateway的访问这里不要写http直接ip:portserver192.168.31.173:88;}include/etc/nginx/conf.d/*.conf;}修改server块反向配置（负载均衡）：server块代码：server{listen80;server_namegulimall1.com*.gulimall1.com;#charsetkoi8-r;#access_log/var/log/nginx/log/host.access.logmain;#######修改聚焦看这里location/{###上游服务器组整个组起名字servernameproxy_passhttp://servername;}#error_page404/404.html;#redirectservererrorpagestothestaticpage/50x.html#error_page500502503504/50x.html;location=/50x.html{root/usr/share/nginx/html;}#proxythePHPscriptstoApachelisteningon127.0.0.1:80##location~\.php${#proxy_passhttp://127.0.0.1;#}#passthePHPscriptstoFastCGIserverlisteningon127.0.0.1:9000##location~\.php${#roothtml;#fastcgi_pass127.0.0.1:9000;#fastcgi_indexindex.php;#fastcgi_paramSCRIPT_FILENAME/scripts$fastcgi_script_name;#includefastcgi_params;#}#denyaccessto.htaccessfiles,ifApache'sdocumentroot#concurswithnginx'sone##location~/\.ht{#denyall;#}}备注：server_namegulimall1.com*.gulimall1.com;反向代理多个域名写法与server对应的gateway网关的配置路由配置文件application.yml：##增加gateway的路由规则**.xxx.com任意子域名定向访问值nacos的nacosServerName服务-id:host_routeuri:lb://nacosServerNamepredicates:-Host=**.xxx.com,xxx.com断言规则：复杂的靠前写，简单的往后写。放置覆盖坑点：接口通讯而页面没有成功。至此api接口可以通讯！但是页面不能正常访问。[server块]配置nginx代理转发至网关的时候会丢失请求的host信息（域名）proxy_set_headerHost$host。而gateway的断言规则predicates:-Host=**.xxx.com,xxx.com是基于域名，导致gateway网关路由分发失败。api的断言规则正常。所以，api接口正常，页面木有打开。中心作用点：gateway的路由断言规则修改补充server的location反向代理配置：#######修改聚焦看这里location/{#######方向代理转发网关时补充头信息###补充转发是header的host信息后续缺少什么这里补充proxy_set_headerHost$host;###上游服务器组整个组起名字servernameproxy_passhttp://servername;}持此配置完成！修改后的nginx.confusernginx;worker_processes1;error_log/var/log/nginx/error.logwarn;pid/var/run/nginx.pid;events{worker_connections1024;}http{include/etc/nginx/mime.types;default_typeapplication/octet-stream;log_formatmain'$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.logmain;sendfileon;#tcp_nopushon;keepalive_timeout65;#gzipon;######配置聚焦看这里##上游服务器组整个组起名字servernameupstreamservername{##每个服务器试用server标签写上服务地址##微服务网关gateway的访问server192.168.31.173:88;}include/etc/nginx/conf.d/*.conf;}修改后的server.confserver{listen80;server_namexxx.com;#charsetkoi8-r;#access_log/var/log/nginx/log/host.access.logmain;#######修改聚焦看这里location/{#######方向代理转发网关时补充头信息###补充转发是header的host信息后续缺少什么这里补充proxy_set_headerHost$host##上游服务器组整个组起名字servernameproxy_passhttp://servername;}#error_page404/404.html;#redirectservererrorpagestothestaticpage/50x.html#error_page500502503504/50x.html;location=/50x.html{root/usr/share/nginx/html;}#proxythePHPscriptstoApachelisteningon127.0.0.1:80##location~\.php${#proxy_passhttp://127.0.0.1;#}#passthePHPscriptstoFastCGIserverlisteningon127.0.0.1:9000##location~\.php${#roothtml;#fastcgi_pass127.0.0.1:9000;#fastcgi_indexindex.php;#fastcgi_paramSCRIPT_FILENAME/scripts$fastcgi_script_name;#includefastcgi_params;#}#denyaccessto.htaccessfiles,ifApache'sdocumentroot#concurswithnginx'sone##location~/\.ht{#denyall;#}}修改后的gateway断言规则application.ymlspring:cloud:gateway:globalcors:corsConfigurations:'[/**]':allowedOrigins:"*"routes:##接口的断言规则-id:product_routeuri:lb://nacosServerNamepredicates:-Path=/api/product/**filters:-RewritePath=/api/(?.*),/$\{segment}##页面的断言规则##增加gateway的路由规则**.xxx.com任意子域名定向访问值nacos的nacosServerName服务-id:gulimall_host_routeuri:lb://nacosServerNamepredicates:-Host=**.xxx.com,xxx.com -全文完-