(1). 前言
看到一位运维同学的nginx配置,特意记录下来,这个配置,非常的简洁,不用每次都要添加location.只需要按照这个规范:
- 定义URL按照(*-service)开头.
- 每上线一个服务,仅只需要定义一个upstream(upstream的名称就是:*-service的名称).
(2). nginx.conf
worker_processes 1;
error_log logs/error.log;
events {
worker_connections 1024;
}
http {
include 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 logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
# 定义服务名称(hello-service)
upstream hello-service {
server 127.0.0.1:9090;
server 127.0.0.1:9091;
}
# 定义服务名称(test-service)
upstream test-service {
server 127.0.0.1:8090;
server 127.0.0.1:8091;
}
# 定义服务名称(default-service)
upstream default-service {
server 127.0.0.1:7090;
server 127.0.0.1:7091;
}
server {
listen 8080;
server_name localhost;
# nginx的location是有顺序的
location ~ .*\.(js|css|png|jpg|gif|html|woff|ttf|svg|eot|map|ico|woff2)$ {
root /home/data/html;
}
# / : 是URL的最后一个,利用这个功能,进行URL的重写.
location / {
# 设置微服务的名称为默认的微服务名称
set $service_name "default-service";
# 判断URL是否为:/*-service/
# 比如:http://localhost:8080/hello-service,那么,$service_name=hello-service
if ($request_uri ~ ^/(.*)-service/(.*)$) {
set $service_name "$1-service";
}
# 对URL进行重写(实际,在微服务后,不需要重写,全部请求打到gateway就可以了)
# 比如:/hello-service/hello 会重写成: /hello
# 最终请求为:http://$service_name/hello
rewrite ^/(.*)-service/(.*)$ /$2 break;
# proxy_pass 指向的upstream都是个变量
proxy_pass http://$service_name;
}
}
include servers/*;
}
(3). 测试
# 1. 请求URL
lixin-macbook:~ lixin$ curl http://localhost:8080/test-service/test.do
# 2. 观察错误日志(tail -500f logs/error.log)
2018/09/23 18:59:03 [error] 11298#0: *54 kevent() reported that connect() failed (61: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /test-service/test.do HTTP/1.1", upstream: "http://127.0.0.1:8090/test.do", host: "localhost:8080"
2018/09/23 18:59:03 [error] 11298#0: *54 kevent() reported that connect() failed (61: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /test-service/test.do HTTP/1.1", upstream: "http://127.0.0.1:8091/test.do", host: "localhost:8080"
# 3. 请求URL
lixin-macbook:~ lixin$ curl http://localhost:8080/hello-service/test.do
# 4. 观察错误日志(tail -500f logs/error.log)
2018/09/23 19:00:03 [error] 11298#0: *57 kevent() reported that connect() failed (61: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /hello-service/test.do HTTP/1.1", upstream: "http://127.0.0.1:9090/test.do", host: "localhost:8080"
2018/09/23 19:00:03 [error] 11298#0: *57 kevent() reported that connect() failed (61: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "GET /hello-service/test.do HTTP/1.1", upstream: "http://127.0.0.1:9091/test.do", host: "localhost:8080"
# 5. 在日志上看起来是有两个请求,是因为失败的情况下,Nginx会向另一个发起请求
# 如果请求是正常的情况下,是不会有两次请求的.
