environment preparation
project JDK1.8 or above version
ready nginx environment
nginx configuration
nginx configuration file is in the /usr/local/nginx/conf directory, configuration file nginx.conf
configuration information is as follows:
3zz web_server 8089 max_fails=2 fail_timeout=30s;
}
upstream web_app: define a name, choose any name
server + ip: port or domain name
add the following configuration to the virtual host
virtual host configuration
server {
listen 3;zzz0 localhost;zzz0 localhost; root html; Define the default root directory location of the server
index index.html index.htm;
Reverse proxy configuration
If the back-end server returns 502,504, execution timeout and other errors, the request will be automatically forwarded to one of the upstream load balancers Server
Realize failover
proxy_next_upstream http_502 http_504 error timeout invalid_header;
Pass the user's information received by the proxy server to the real server
Proxy_add_header Host Proxy_set_header_Forward_head_zero_proxy_3zz0-z_proxy_host;
z0 For $proxy_add_x_forwarded_for;is the same as the forwarded name configured above
proxy_pass http://web_app;
}
Description:
server: the name of the virtual host, multiple servers can be configured in one HTTP;
listen: nginx default The port
server_name: the address of the nginx service, you can use the domain name, multiple separated by spaces
proxy_pass: proxy path, generally configure the name behind upstream to achieve load balancing, you can directly configure ip to jump
nginx.conf Simple complete configuration:
events {
worker_connections 1024;
}
error_log nginx-error.log info;
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
stream = 808.zzzserver 192.168.150;
keepalive_app_timeout3 65;0zz server 192.168.150.
}
server {
listen 80;
server_name 127.0.0.1;
location / {
root html;
proxy_pass http://web_app;
proxy_connect_timeout 3s;
proxy_read_timeout 5s;
503 zzzproxy_send_timeout 3s; zzz0 503 zzzproxy_send_timeout 3s; zzz0 502 503 zzzproxy_50 html ;
location = /50x.html {
root html;
}
}
}
Load balancing test
After completing the above Nginx configuration, restart Nginx
[root@localhost ~] /usr/sbin/nginx- s reload
microservice start:
[root@pertest bin] sh server.sh restart
access interface, through nginx ip: port + interface suffix address
through nginx log, you can also see that the access is successful
when there are multiple nodes At the time, add the corresponding ip: port in the nginx configuration file.
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