plantuml-server/examples/nginx-contextpath/nginx.conf

user  nginx;
worker_processes  auto;

error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;

include /etc/nginx/modules-enabled/*.conf;

events {
    worker_connections  1024;
}

http {

    server {
        listen          80;
        server_name     localhost;

        # PlantUML
        location /plantuml/ {
            proxy_set_header  HOST               $host;
            proxy_set_header  X-Forwarded-Host   $host;
            proxy_set_header  X-Forwarded-Proto  $scheme;

            proxy_pass http://plantuml-server:8080/plantuml/;
        }
    }

    client_max_body_size    0;

    include /etc/nginx/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  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}