nginx.conf

# nginx.conf  --  docker-openresty
#
# This file is installed to:
#   `/usr/local/openresty/nginx/conf/nginx.conf`
# and is the file loaded by nginx at startup,
# unless the user specifies otherwise.
#
# It tracks the upstream OpenResty's `nginx.conf`, but removes the `server`
# section and adds this directive:
#     `include /etc/nginx/conf.d/*.conf;`
#
# The `docker-openresty` file `nginx.vh.default.conf` is copied to
# `/etc/nginx/conf.d/default.conf`.  It contains the `server section
# of the upstream `nginx.conf`.
#
# See https://github.com/openresty/docker-openresty/blob/master/README.md#nginx-config-files
#

user root;
worker_processes auto;

# Enables the use of JIT for regular expressions to speed-up their processing.
pcre_jit on;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;

# declare env variables to use it in config
env PORTAL_DOMAIN;
env SERVER_DOMAIN;
env PORTAL_MODULES;
env DENY_PUBLIC_ACCESS;
env ACCOUNTS_LIMIT_ACCESS;
env SIA_API_PASSWORD;
env ACCOUNTS_REDIRECT_URL;
env ACCOUNTS_REDIRECT_STATUS_CODE;

events {
    worker_connections 8192;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    lua_package_path "/etc/nginx/libs/?.lua;;";

    lua_max_pending_timers 16384; # maximum number of waiting tasks
    lua_max_running_timers 4096; # maximum number of simultaneous running tasks

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        '$status $body_bytes_sent "$http_referer" '
        '"$http_user_agent" $upstream_response_time '
        '$upstream_bytes_sent $upstream_bytes_received '
        '"$upstream_http_content_type" "$upstream_cache_status" '
        '"$server_alias" "$sent_http_skynet_skylink" '
        '$upstream_connect_time $upstream_header_time '
        '$request_time "$hns_domain" "$skylink" $upstream_http_skynet_cache_ratio';

    access_log  logs/access.log  main;

    # See Move default writable paths to a dedicated directory (#119)
    # https://github.com/openresty/docker-openresty/issues/119
    client_body_temp_path /var/run/openresty/nginx-client-body;
    proxy_temp_path       /var/run/openresty/nginx-proxy;
    fastcgi_temp_path     /var/run/openresty/nginx-fastcgi;
    uwsgi_temp_path       /var/run/openresty/nginx-uwsgi;
    scgi_temp_path        /var/run/openresty/nginx-scgi;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    # globally enable http 1.1 on all proxied requests
    # http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_http_version
    proxy_http_version 1.1;

    # proxy cache definition
    proxy_cache_path /data/nginx/cache levels=1:2 keys_zone=skynet:10m max_size=50g min_free=100g inactive=48h use_temp_path=off;

    # init phase runs before forking out nginx worker processes
    # and preloads the libraries once to improve performance
    init_by_lua_block {
        -- preload external libraries 
        require("cjson")
        require("resty.http")
        require("resty.ipmatcher")
        -- preload local lua general use libraries
        require("basexx")
        require("utils")
        -- preload local lua skynet libraries
        require("skynet.access")
        require("skynet.account")
        require("skynet.modules")
        require("skynet.pinner")
        require("skynet.scanner")
        require("skynet.skylink")
        require("skynet.tracker")
        require("skynet.utils")
    }

    # include skynet-portal-api and skynet-server-api header on every request
    header_filter_by_lua_block {
        ngx.header["Skynet-Portal-Api"] = ngx.var.scheme .. "://" .. ngx.var.skynet_portal_domain
        ngx.header["Skynet-Server-Api"] = ngx.var.scheme .. "://" .. ngx.var.skynet_server_domain
    }

    # do not rate limit local traffic (ie. health checks)
    geo $limit {
        default 1;
        127.0.0.0/8 0; # host network
        10.0.0.0/8 0; # private network
        172.16.0.0/12 0; # private network
        192.168.0.0/16 0; # private network
    }

    map $limit $limit_key {
        0 "";
        1 $binary_remote_addr;
    }

    limit_req_zone $limit_key zone=uploads_by_ip:10m rate=10r/s;
    limit_req_zone $limit_key zone=registry_access_by_ip:10m rate=60r/m;
    limit_conn_zone $limit_key zone=upload_conn_limit:10m;
    limit_conn_zone $limit_key zone=download_conn_limit:10m;

    limit_req_status 429;
    limit_conn_status 429;

    # Add X-Forwarded-* headers
    proxy_set_header X-Forwarded-Host  $host;
    proxy_set_header X-Forwarded-Proto $scheme;

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