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In my environment in rancher I use built in ingress load balancer to route trafic to custom nginx, which acts like reverse proxy for 2 "apps". In condition i choose which server I want to proxy. Everything works fine, but after random time application is not available. In browser i get 504 and basic nginx message An error occurred. blah blah Faithfully yours, nginx. I use nginx:lts from dockerhub

nginx

2021/02/25 19:46:27 [error] 31#31: *789 upstream timed out (110: Connection timed out) while connecting to upstream, client: X.X.X.X, server: _, request: "GET / HTTP/1.1", upstream: "http://10.42.0.36:8080/", host: "www.example.com"
2021/02/25 19:47:27 [info] 31#31: *789 client X.X.X.X closed keepalive connection

If I restart nginx container, everything works again for a few hours.

config

worker_processes                    auto;
error_log                           /dev/stdout info;
pid                                 /run/nginx.pid;

include                             /usr/share/nginx/modules/*.conf;


events {
    worker_connections              1024;
    multi_accept                    on;
}


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                      /dev/stdout;

client_body_buffer_size         10K;
client_header_buffer_size       1k;
client_max_body_size            100m;
large_client_header_buffers     4 32k;
server_names_hash_bucket_size   64;
sendfile                        on;
tcp_nodelay                     on;
tcp_nopush                      on;
keepalive_requests              1000;
reset_timedout_connection       on;
client_body_timeout             10;
send_timeout                    5;
server_tokens                   off;
keepalive_timeout               65;
types_hash_max_size             2048;

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

server {
    listen                      8080 default_server;
    server_name                 _;

    charset                     utf-8;
    underscores_in_headers      on;

    root                        /usr/share/nginx/html;

    location / {
        proxy_http_version      1.1;
        proxy_read_timeout      120;
        proxy_cache_bypass      true;
        proxy_no_cache          true;
        proxy_connect_timeout   20s;

        if ($http_user_agent ~ someagent) {
            proxy_pass              http://app1:8000;
        }

        proxy_pass              http://app2:8080;
    }

    error_page 404 /404.html;
        location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
        location = /50x.html {
    }
}



}
l2ysho
  • 101

0 Answers0