主配置文件：

cat /etc/nginx/nginx.conf
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
worker_connections 1024;
}

http {
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;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;

client_header_buffer_size 16k;
large_client_header_buffers 4 64k;
client_max_body_size 5M;

proxy_headers_hash_max_size 2048;
proxy_headers_hash_bucket_size 256;

include /etc/nginx/mime.types;
default_type application/octet-stream;

# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
}

各服务配置文件：

服务一：

cat api.xxx.com.conf
server {
listen 90;
server_name api.xxx.com;

#location / {
# root /usr/share/nginx/html;
# index index.html index.htm;
#}

location / {
root /data/www_xxx/h5html;
index index.html index.htm;
proxy_pass http://127.0.0.1:28080;

# Forward the user's IP address to Rails
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;
}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}

}

服务二：

cat  m.api.xxx.com.conf
server {
listen 80;
server_name  m.api.xxx.com;

#location / {
# root /usr/share/nginx/html;
# index index.html index.htm;
#}

location / {
root /data/www/h5html;
index index.html index.htm;

# Forward the user's IP address to Rails
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;

if ( !-e $request_filename ) {
proxy_pass http://127.0.0.1:28080;
}
}

location ~ .*\.(html|htm) {
root /data/fulu/www_fulucz/h5html;
#expires 30d; #缓存30天
}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}

}

server {
listen 90;
server_name m.api.xxx.com;

return 301 https://m.api.xxx.com$request_uri;
}