skynet-webportal/docker/nginx/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  1;

#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 SKYNET_PORTAL_API;
env SKYNET_SERVER_API;
env ACCOUNTS_ENABLED;

events {
    worker_connections  1024;
}


http {
    include       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" $upstream_response_time '
        '$upstream_bytes_sent $upstream_bytes_received '
        '"$upstream_http_content_type" "$upstream_cache_status" '
        '"$portal_domain" "$sent_http_skynet_skylink" '
        '$upstream_connect_time $upstream_header_time '
        '$request_time "$hns_domain"';

    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;

    #gzip  on;

    # expose env variables as regular variables (env variables are not easily accessible in nginx)
    set_by_lua $SKYNET_PORTAL_API 'return os.getenv("SKYNET_PORTAL_API")';
    set_by_lua $SKYNET_SERVER_API 'return os.getenv("SKYNET_SERVER_API")';
    set_by_lua $ACCOUNTS_ENABLED 'return os.getenv("ACCOUNTS_ENABLED")';

    # include skynet-portal-api header on every request
    header_filter_by_lua 'ngx.header["Skynet-Portal-Api"] = os.getenv("SKYNET_PORTAL_API")';

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