来源：https://blog.csdn.net/liushuyul/article/details/125047906

nginx 反向代理支持 grpc

#此配置为负载均衡配置
upstream datacenter_load {
        server 127.0.0.1:9090;
}

server {
    #此处配置上http2，因为gprc是基于http2的
    listen 88 http2;
    server_name test.datacenter.technocore.network;
    #此处貌似不能像http转https一样，会报错，所以注释掉单独再写个grpcs的server配置
    #return 301 grpc://$server_name:880/$request_uri;

    location / {
        #此处配置grpc服务的反向代理
        grpc_pass  grpc://datacenter_load;
        grpc_set_header Host $host;
        grpc_set_header X-Real-IP $remote_addr;
        grpc_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

}

nginx 反向代理支持 grpc + ssl

#此配置为负载均衡配置
upstream datacenter_load2 {
        server 127.0.0.1:9090;
}

server {
    #此处配置上http2和ssl，因为gprc是基于http2的
    listen 880 ssl http2;
    server_name test.technocore.network;
    #此处配置ssl证书的路径
    ssl_certificate /opt/metisnetwork/nginx/ssl/test.technocore.network.pem;
    ssl_certificate_key /opt/metisnetwork/nginx/ssl/test.technocore.network.key;

    location / {
        #此处配置grpc服务的反向代理
        grpc_pass  grpc://datacenter_load2;
        grpc_set_header Host $host;
        grpc_set_header X-Real-IP $remote_addr;
        grpc_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}