maintenance/hydra/nginx/mirror.conf

# This is the /etc/nginx/nginx.conf file for mirrors.

user www-data;
worker_processes auto;

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

lock_file  /var/lock/nginx.lock;

pcre_jit   on;

events {
    worker_connections  1024;
}

http {
    default_type  application/octet-stream;

    client_body_temp_path /var/lib/nginx/body;
    proxy_temp_path       /var/lib/nginx/proxy;

    access_log	/var/log/nginx/access.log;

    sendfile        on;

    # Maximum chunk size to send.  Partly this is a workaround
    # for <http://bugs.gnu.org/19939>, but also the nginx docs
    # mention that "Without the limit, one fast connection may
    # seize the worker process entirely."
    # <http://nginx.org/en/docs/http/ngx_http_core_module#sendfile_max_chunk>
    sendfile_max_chunk 1m;

    keepalive_timeout  65;

    # Use HTTP 1.1 to talk to the backend so we benefit from
    # keep-alive connections and chunked transfer encoding.  The
    # latter allows us to make sure we do not cache partial downloads.
    proxy_http_version 1.1;

    # The 'inactive' parameter for caching is not very useful in our
    # case: all that matters is that LRU sweeping happens when
    # 'max_size' is hit.

    # cache for narinfo files
    proxy_cache_path /var/cache/nginx/narinfo
		     levels=2
		     inactive=10d          # inactive keys removed after 10d
		     keys_zone=narinfo:8m  # narinfo meta data: ~64K keys
		     max_size=4g;          # total cache data size max

    # cache for nar files
    proxy_cache_path /var/cache/nginx/nar
		     levels=2
		     inactive=90d	   # inactive keys removed after 90d
		     keys_zone=nar:8m      # nar cache meta data: ~64K keys
		     max_size=95g;         # total cache data size max

    # cache for content-addressed files
    proxy_cache_path /var/cache/nginx/cas
		     levels=2
		     inactive=180d	   # inactive keys removed after 180d
		     keys_zone=cas:8m      # nar cache meta data: ~64K keys
		     max_size=30g;         # total cache data size max

    # cache for static data
    proxy_cache_path /var/cache/nginx/static
		     levels=1
		     inactive=90d	   # inactive keys removed after 90d
		     keys_zone=static:1m   # nar cache meta data: ~8K keys
		     max_size=2m;          # total cache data size max

    # cache for build logs
    proxy_cache_path /var/cache/nginx/logs
		     levels=2
		     inactive=60d          # inactive keys removed after 60d
		     keys_zone=logs:8m     # narinfo meta data: ~64K keys
		     max_size=4g;          # total cache data size max

    # We'd rather fail early than wait forever for hydra.gnu.org.
    proxy_connect_timeout 5s;
    proxy_read_timeout 10s;
    proxy_send_timeout 10s;

    server {
	listen       80;
	server_name  hydra.gnunet.org;

	access_log  /var/log/nginx/hydra.access.log;

	proxy_set_header X-Forwarded-Host $host;
	proxy_set_header X-Forwarded-Port $server_port;
	proxy_set_header X-Forwarded-For  $proxy_add_x_forwarded_for;

	include mirror-locations.conf;
    }

    server {
	listen              443 ssl;
	server_name         hydra.gnunet.org;
	keepalive_timeout   70;

	# Make sure SSL is disabled.
	ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;

	# Disable weak cipher suites.
	ssl_ciphers         HIGH:!aNULL:!MD5;
    	ssl_prefer_server_ciphers on;

	# Use our own DH parameters created with:
	#    openssl dhparam -out dhparams.pem 2048
	# as suggested at <https://weakdh.org/sysadmin.html>.
	ssl_dhparam         /etc/dhparams.pem;

	access_log  /var/log/nginx/hydra.https.access.log;

	ssl_certificate     /etc/letsencrypt/live/hydra.gnunet.org/fullchain.pem;
	ssl_certificate_key /etc/letsencrypt/live/hydra.gnunet.org/privkey.pem;

	include mirror-locations.conf;
    }
}