737 lines
24 KiB
Nix
737 lines
24 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.nginx;
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certs = config.security.acme.certs;
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vhostsConfigs = mapAttrsToList (vhostName: vhostConfig: vhostConfig) virtualHosts;
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acmeEnabledVhosts = filter (vhostConfig: vhostConfig.enableACME && vhostConfig.useACMEHost == null) vhostsConfigs;
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virtualHosts = mapAttrs (vhostName: vhostConfig:
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let
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serverName = if vhostConfig.serverName != null
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then vhostConfig.serverName
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else vhostName;
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in
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vhostConfig // {
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inherit serverName;
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} // (optionalAttrs vhostConfig.enableACME {
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sslCertificate = "${certs.${serverName}.directory}/fullchain.pem";
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sslCertificateKey = "${certs.${serverName}.directory}/key.pem";
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sslTrustedCertificate = "${certs.${serverName}.directory}/full.pem";
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}) // (optionalAttrs (vhostConfig.useACMEHost != null) {
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sslCertificate = "${certs.${vhostConfig.useACMEHost}.directory}/fullchain.pem";
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sslCertificateKey = "${certs.${vhostConfig.useACMEHost}.directory}/key.pem";
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sslTrustedCertificate = "${certs.${vhostConfig.useACMEHost}.directory}/fullchain.pem";
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})
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) cfg.virtualHosts;
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enableIPv6 = config.networking.enableIPv6;
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recommendedProxyConfig = pkgs.writeText "nginx-recommended-proxy-headers.conf" ''
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_set_header X-Forwarded-Host $host;
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proxy_set_header X-Forwarded-Server $host;
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proxy_set_header Accept-Encoding "";
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'';
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upstreamConfig = toString (flip mapAttrsToList cfg.upstreams (name: upstream: ''
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upstream ${name} {
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${toString (flip mapAttrsToList upstream.servers (name: server: ''
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server ${name} ${optionalString server.backup "backup"};
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''))}
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${upstream.extraConfig}
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}
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''));
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configFile = pkgs.writers.writeNginxConfig "nginx.conf" ''
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user ${cfg.user} ${cfg.group};
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error_log ${cfg.logError};
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daemon off;
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${cfg.config}
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${optionalString (cfg.eventsConfig != "" || cfg.config == "") ''
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events {
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${cfg.eventsConfig}
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}
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''}
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${optionalString (cfg.httpConfig == "" && cfg.config == "") ''
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http {
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# The mime type definitions included with nginx are very incomplete, so
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# we use a list of mime types from the mailcap package, which is also
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# used by most other Linux distributions by default.
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include ${pkgs.mailcap}/etc/nginx/mime.types;
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include ${cfg.package}/conf/fastcgi.conf;
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include ${cfg.package}/conf/uwsgi_params;
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${optionalString (cfg.resolver.addresses != []) ''
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resolver ${toString cfg.resolver.addresses} ${optionalString (cfg.resolver.valid != "") "valid=${cfg.resolver.valid}"} ${optionalString (!cfg.resolver.ipv6) "ipv6=off"};
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''}
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${upstreamConfig}
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${optionalString (cfg.recommendedOptimisation) ''
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# optimisation
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sendfile on;
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tcp_nopush on;
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tcp_nodelay on;
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keepalive_timeout 65;
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types_hash_max_size 2048;
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''}
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ssl_protocols ${cfg.sslProtocols};
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ssl_ciphers ${cfg.sslCiphers};
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${optionalString (cfg.sslDhparam != null) "ssl_dhparam ${cfg.sslDhparam};"}
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${optionalString (cfg.recommendedTlsSettings) ''
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ssl_session_cache shared:SSL:42m;
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ssl_session_timeout 23m;
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ssl_ecdh_curve secp384r1;
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ssl_prefer_server_ciphers on;
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ssl_stapling on;
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ssl_stapling_verify on;
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''}
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${optionalString (cfg.recommendedGzipSettings) ''
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gzip on;
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gzip_proxied any;
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gzip_comp_level 5;
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gzip_types
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application/atom+xml
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application/javascript
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application/json
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application/xml
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application/xml+rss
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image/svg+xml
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text/css
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text/javascript
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text/plain
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text/xml;
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gzip_vary on;
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''}
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${optionalString (cfg.recommendedProxySettings) ''
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proxy_redirect off;
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proxy_connect_timeout 90;
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proxy_send_timeout 90;
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proxy_read_timeout 90;
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proxy_http_version 1.0;
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include ${recommendedProxyConfig};
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''}
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${optionalString (cfg.mapHashBucketSize != null) ''
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map_hash_bucket_size ${toString cfg.mapHashBucketSize};
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''}
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${optionalString (cfg.mapHashMaxSize != null) ''
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map_hash_max_size ${toString cfg.mapHashMaxSize};
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''}
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# $connection_upgrade is used for websocket proxying
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map $http_upgrade $connection_upgrade {
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default upgrade;
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''' close;
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}
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client_max_body_size ${cfg.clientMaxBodySize};
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server_tokens ${if cfg.serverTokens then "on" else "off"};
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${cfg.commonHttpConfig}
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${vhosts}
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${optionalString cfg.statusPage ''
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server {
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listen 80;
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${optionalString enableIPv6 "listen [::]:80;" }
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server_name localhost;
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location /nginx_status {
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stub_status on;
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access_log off;
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allow 127.0.0.1;
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${optionalString enableIPv6 "allow ::1;"}
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deny all;
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}
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}
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''}
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${cfg.appendHttpConfig}
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}''}
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${optionalString (cfg.httpConfig != "") ''
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http {
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include ${cfg.package}/conf/mime.types;
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include ${cfg.package}/conf/fastcgi.conf;
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include ${cfg.package}/conf/uwsgi_params;
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${cfg.httpConfig}
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}''}
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${cfg.appendConfig}
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'';
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configPath = if cfg.enableReload
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then "/etc/nginx/nginx.conf"
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else configFile;
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vhosts = concatStringsSep "\n" (mapAttrsToList (vhostName: vhost:
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let
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onlySSL = vhost.onlySSL || vhost.enableSSL;
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hasSSL = onlySSL || vhost.addSSL || vhost.forceSSL;
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defaultListen =
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if vhost.listen != [] then vhost.listen
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else ((optionals hasSSL (
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singleton { addr = "0.0.0.0"; port = 443; ssl = true; }
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++ optional enableIPv6 { addr = "[::]"; port = 443; ssl = true; }
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)) ++ optionals (!onlySSL) (
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singleton { addr = "0.0.0.0"; port = 80; ssl = false; }
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++ optional enableIPv6 { addr = "[::]"; port = 80; ssl = false; }
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));
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hostListen =
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if vhost.forceSSL
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then filter (x: x.ssl) defaultListen
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else defaultListen;
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listenString = { addr, port, ssl, extraParameters ? [], ... }:
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"listen ${addr}:${toString port} "
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+ optionalString ssl "ssl "
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+ optionalString (ssl && vhost.http2) "http2 "
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+ optionalString vhost.default "default_server "
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+ optionalString (extraParameters != []) (concatStringsSep " " extraParameters)
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+ ";";
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redirectListen = filter (x: !x.ssl) defaultListen;
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acmeLocation = optionalString (vhost.enableACME || vhost.useACMEHost != null) ''
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location /.well-known/acme-challenge {
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${optionalString (vhost.acmeFallbackHost != null) "try_files $uri @acme-fallback;"}
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root ${vhost.acmeRoot};
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auth_basic off;
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}
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${optionalString (vhost.acmeFallbackHost != null) ''
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location @acme-fallback {
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auth_basic off;
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proxy_pass http://${vhost.acmeFallbackHost};
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}
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''}
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'';
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in ''
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${optionalString vhost.forceSSL ''
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server {
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${concatMapStringsSep "\n" listenString redirectListen}
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server_name ${vhost.serverName} ${concatStringsSep " " vhost.serverAliases};
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${acmeLocation}
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location / {
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return 301 https://$host$request_uri;
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}
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}
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''}
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server {
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${concatMapStringsSep "\n" listenString hostListen}
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server_name ${vhost.serverName} ${concatStringsSep " " vhost.serverAliases};
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${acmeLocation}
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${optionalString (vhost.root != null) "root ${vhost.root};"}
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${optionalString (vhost.globalRedirect != null) ''
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return 301 http${optionalString hasSSL "s"}://${vhost.globalRedirect}$request_uri;
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''}
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${optionalString hasSSL ''
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ssl_certificate ${vhost.sslCertificate};
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ssl_certificate_key ${vhost.sslCertificateKey};
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''}
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${optionalString (hasSSL && vhost.sslTrustedCertificate != null) ''
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ssl_trusted_certificate ${vhost.sslTrustedCertificate};
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''}
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${optionalString (vhost.basicAuthFile != null || vhost.basicAuth != {}) ''
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auth_basic secured;
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auth_basic_user_file ${if vhost.basicAuthFile != null then vhost.basicAuthFile else mkHtpasswd vhostName vhost.basicAuth};
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''}
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${mkLocations vhost.locations}
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${vhost.extraConfig}
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}
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''
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) virtualHosts);
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mkLocations = locations: concatStringsSep "\n" (map (config: ''
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location ${config.location} {
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${optionalString (config.proxyPass != null && !cfg.proxyResolveWhileRunning)
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"proxy_pass ${config.proxyPass};"
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}
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${optionalString (config.proxyPass != null && cfg.proxyResolveWhileRunning) ''
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set $nix_proxy_target "${config.proxyPass}";
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proxy_pass $nix_proxy_target;
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''}
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${optionalString config.proxyWebsockets ''
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proxy_http_version 1.1;
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proxy_set_header Upgrade $http_upgrade;
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proxy_set_header Connection $connection_upgrade;
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''}
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${optionalString (config.index != null) "index ${config.index};"}
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${optionalString (config.tryFiles != null) "try_files ${config.tryFiles};"}
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${optionalString (config.root != null) "root ${config.root};"}
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${optionalString (config.alias != null) "alias ${config.alias};"}
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${optionalString (config.return != null) "return ${config.return};"}
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${config.extraConfig}
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${optionalString (config.proxyPass != null && cfg.recommendedProxySettings) "include ${recommendedProxyConfig};"}
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}
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'') (sortProperties (mapAttrsToList (k: v: v // { location = k; }) locations)));
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mkHtpasswd = vhostName: authDef: pkgs.writeText "${vhostName}.htpasswd" (
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concatStringsSep "\n" (mapAttrsToList (user: password: ''
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${user}:{PLAIN}${password}
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'') authDef)
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);
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in
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{
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options = {
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services.nginx = {
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enable = mkEnableOption "Nginx Web Server";
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statusPage = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable status page reachable from localhost on http://127.0.0.1/nginx_status.
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";
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};
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recommendedTlsSettings = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable recommended TLS settings.
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";
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};
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recommendedOptimisation = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable recommended optimisation settings.
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";
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};
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recommendedGzipSettings = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable recommended gzip settings.
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";
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};
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recommendedProxySettings = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable recommended proxy settings.
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";
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};
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package = mkOption {
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default = pkgs.nginxStable;
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defaultText = "pkgs.nginxStable";
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type = types.package;
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description = "
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Nginx package to use. This defaults to the stable version. Note
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that the nginx team recommends to use the mainline version which
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available in nixpkgs as <literal>nginxMainline</literal>.
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";
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};
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logError = mkOption {
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default = "stderr";
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description = "
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Configures logging.
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The first parameter defines a file that will store the log. The
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special value stderr selects the standard error file. Logging to
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syslog can be configured by specifying the “syslog:” prefix.
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The second parameter determines the level of logging, and can be
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one of the following: debug, info, notice, warn, error, crit,
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alert, or emerg. Log levels above are listed in the order of
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increasing severity. Setting a certain log level will cause all
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messages of the specified and more severe log levels to be logged.
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If this parameter is omitted then error is used.
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";
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};
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preStart = mkOption {
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type = types.lines;
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default = ''
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test -d ${cfg.stateDir}/logs || mkdir -m 750 -p ${cfg.stateDir}/logs
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test `stat -c %a ${cfg.stateDir}` = "750" || chmod 750 ${cfg.stateDir}
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test `stat -c %a ${cfg.stateDir}/logs` = "750" || chmod 750 ${cfg.stateDir}/logs
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chown -R ${cfg.user}:${cfg.group} ${cfg.stateDir}
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'';
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description = "
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Shell commands executed before the service's nginx is started.
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";
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};
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config = mkOption {
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default = "";
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description = "
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Verbatim nginx.conf configuration.
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This is mutually exclusive with the structured configuration
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via virtualHosts and the recommendedXyzSettings configuration
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options. See appendConfig for appending to the generated http block.
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";
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};
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appendConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Configuration lines appended to the generated Nginx
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configuration file. Commonly used by different modules
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providing http snippets. <option>appendConfig</option>
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can be specified more than once and it's value will be
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concatenated (contrary to <option>config</option> which
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can be set only once).
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'';
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};
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commonHttpConfig = mkOption {
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type = types.lines;
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default = "";
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example = ''
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resolver 127.0.0.1 valid=5s;
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log_format myformat '$remote_addr - $remote_user [$time_local] '
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'"$request" $status $body_bytes_sent '
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'"$http_referer" "$http_user_agent"';
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'';
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description = ''
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With nginx you must provide common http context definitions before
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they are used, e.g. log_format, resolver, etc. inside of server
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or location contexts. Use this attribute to set these definitions
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at the appropriate location.
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'';
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};
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httpConfig = mkOption {
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type = types.lines;
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default = "";
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description = "
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Configuration lines to be set inside the http block.
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This is mutually exclusive with the structured configuration
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via virtualHosts and the recommendedXyzSettings configuration
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options. See appendHttpConfig for appending to the generated http block.
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";
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};
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eventsConfig = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Configuration lines to be set inside the events block.
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'';
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};
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appendHttpConfig = mkOption {
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type = types.lines;
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default = "";
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description = "
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Configuration lines to be appended to the generated http block.
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This is mutually exclusive with using config and httpConfig for
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specifying the whole http block verbatim.
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";
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};
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enableReload = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Reload nginx when configuration file changes (instead of restart).
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The configuration file is exposed at <filename>/etc/nginx/nginx.conf</filename>.
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See also <literal>systemd.services.*.restartIfChanged</literal>.
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'';
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};
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stateDir = mkOption {
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default = "/var/spool/nginx";
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description = "
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Directory holding all state for nginx to run.
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";
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};
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user = mkOption {
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type = types.str;
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default = "nginx";
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description = "User account under which nginx runs.";
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};
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group = mkOption {
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type = types.str;
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default = "nginx";
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description = "Group account under which nginx runs.";
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};
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serverTokens = mkOption {
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type = types.bool;
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default = false;
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description = "Show nginx version in headers and error pages.";
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};
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clientMaxBodySize = mkOption {
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type = types.str;
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default = "10m";
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description = "Set nginx global client_max_body_size.";
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};
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sslCiphers = mkOption {
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type = types.str;
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default = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
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description = "Ciphers to choose from when negotiating tls handshakes.";
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};
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sslProtocols = mkOption {
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type = types.str;
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default = "TLSv1.2 TLSv1.3";
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example = "TLSv1 TLSv1.1 TLSv1.2 TLSv1.3";
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description = "Allowed TLS protocol versions.";
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};
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sslDhparam = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/path/to/dhparams.pem";
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description = "Path to DH parameters file.";
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};
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proxyResolveWhileRunning = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Resolves domains of proxyPass targets at runtime
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and not only at start, you have to set
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services.nginx.resolver, too.
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'';
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};
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mapHashBucketSize = mkOption {
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type = types.nullOr (types.enum [ 32 64 128 ]);
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default = null;
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description = ''
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Sets the bucket size for the map variables hash tables. Default
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value depends on the processor’s cache line size.
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'';
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};
|
||
|
||
mapHashMaxSize = mkOption {
|
||
type = types.nullOr types.ints.positive;
|
||
default = null;
|
||
description = ''
|
||
Sets the maximum size of the map variables hash tables.
|
||
'';
|
||
};
|
||
|
||
resolver = mkOption {
|
||
type = types.submodule {
|
||
options = {
|
||
addresses = mkOption {
|
||
type = types.listOf types.str;
|
||
default = [];
|
||
example = literalExample ''[ "[::1]" "127.0.0.1:5353" ]'';
|
||
description = "List of resolvers to use";
|
||
};
|
||
valid = mkOption {
|
||
type = types.str;
|
||
default = "";
|
||
example = "30s";
|
||
description = ''
|
||
By default, nginx caches answers using the TTL value of a response.
|
||
An optional valid parameter allows overriding it
|
||
'';
|
||
};
|
||
ipv6 = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
By default, nginx will look up both IPv4 and IPv6 addresses while resolving.
|
||
If looking up of IPv6 addresses is not desired, the ipv6=off parameter can be
|
||
specified.
|
||
'';
|
||
};
|
||
};
|
||
};
|
||
description = ''
|
||
Configures name servers used to resolve names of upstream servers into addresses
|
||
'';
|
||
default = {};
|
||
};
|
||
|
||
upstreams = mkOption {
|
||
type = types.attrsOf (types.submodule {
|
||
options = {
|
||
servers = mkOption {
|
||
type = types.attrsOf (types.submodule {
|
||
options = {
|
||
backup = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Marks the server as a backup server. It will be passed
|
||
requests when the primary servers are unavailable.
|
||
'';
|
||
};
|
||
};
|
||
});
|
||
description = ''
|
||
Defines the address and other parameters of the upstream servers.
|
||
'';
|
||
default = {};
|
||
};
|
||
extraConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
These lines go to the end of the upstream verbatim.
|
||
'';
|
||
};
|
||
};
|
||
});
|
||
description = ''
|
||
Defines a group of servers to use as proxy target.
|
||
'';
|
||
default = {};
|
||
};
|
||
|
||
virtualHosts = mkOption {
|
||
type = types.attrsOf (types.submodule (import ./vhost-options.nix {
|
||
inherit config lib;
|
||
}));
|
||
default = {
|
||
localhost = {};
|
||
};
|
||
example = literalExample ''
|
||
{
|
||
"hydra.example.com" = {
|
||
forceSSL = true;
|
||
enableACME = true;
|
||
locations."/" = {
|
||
proxyPass = "http://localhost:3000";
|
||
};
|
||
};
|
||
};
|
||
'';
|
||
description = "Declarative vhost config";
|
||
};
|
||
};
|
||
};
|
||
|
||
config = mkIf cfg.enable {
|
||
# TODO: test user supplied config file pases syntax test
|
||
|
||
warnings =
|
||
let
|
||
deprecatedSSL = name: config: optional config.enableSSL
|
||
''
|
||
config.services.nginx.virtualHosts.<name>.enableSSL is deprecated,
|
||
use config.services.nginx.virtualHosts.<name>.onlySSL instead.
|
||
'';
|
||
|
||
in flatten (mapAttrsToList deprecatedSSL virtualHosts);
|
||
|
||
assertions =
|
||
let
|
||
hostOrAliasIsNull = l: l.root == null || l.alias == null;
|
||
in [
|
||
{
|
||
assertion = all (host: all hostOrAliasIsNull (attrValues host.locations)) (attrValues virtualHosts);
|
||
message = "Only one of nginx root or alias can be specified on a location.";
|
||
}
|
||
|
||
{
|
||
assertion = all (conf: with conf;
|
||
!(addSSL && (onlySSL || enableSSL)) &&
|
||
!(forceSSL && (onlySSL || enableSSL)) &&
|
||
!(addSSL && forceSSL)
|
||
) (attrValues virtualHosts);
|
||
message = ''
|
||
Options services.nginx.service.virtualHosts.<name>.addSSL,
|
||
services.nginx.virtualHosts.<name>.onlySSL and services.nginx.virtualHosts.<name>.forceSSL
|
||
are mutually exclusive.
|
||
'';
|
||
}
|
||
|
||
{
|
||
assertion = all (conf: !(conf.enableACME && conf.useACMEHost != null)) (attrValues virtualHosts);
|
||
message = ''
|
||
Options services.nginx.service.virtualHosts.<name>.enableACME and
|
||
services.nginx.virtualHosts.<name>.useACMEHost are mutually exclusive.
|
||
'';
|
||
}
|
||
];
|
||
|
||
systemd.services.nginx = {
|
||
description = "Nginx Web Server";
|
||
wantedBy = [ "multi-user.target" ];
|
||
wants = concatLists (map (vhostConfig: ["acme-${vhostConfig.serverName}.service" "acme-selfsigned-${vhostConfig.serverName}.service"]) acmeEnabledVhosts);
|
||
after = [ "network.target" ] ++ map (vhostConfig: "acme-selfsigned-${vhostConfig.serverName}.service") acmeEnabledVhosts;
|
||
stopIfChanged = false;
|
||
preStart =
|
||
''
|
||
${cfg.preStart}
|
||
${cfg.package}/bin/nginx -c ${configPath} -p ${cfg.stateDir} -t
|
||
'';
|
||
serviceConfig = {
|
||
ExecStart = "${cfg.package}/bin/nginx -c ${configPath} -p ${cfg.stateDir}";
|
||
ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
|
||
Restart = "always";
|
||
RestartSec = "10s";
|
||
StartLimitInterval = "1min";
|
||
};
|
||
};
|
||
|
||
environment.etc."nginx/nginx.conf" = mkIf cfg.enableReload {
|
||
source = configFile;
|
||
};
|
||
|
||
systemd.services.nginx-config-reload = mkIf cfg.enableReload {
|
||
wantedBy = [ "nginx.service" ];
|
||
restartTriggers = [ configFile ];
|
||
script = ''
|
||
if ${pkgs.systemd}/bin/systemctl -q is-active nginx.service ; then
|
||
${pkgs.systemd}/bin/systemctl reload nginx.service
|
||
fi
|
||
'';
|
||
serviceConfig.RemainAfterExit = true;
|
||
};
|
||
|
||
security.acme.certs = filterAttrs (n: v: v != {}) (
|
||
let
|
||
acmePairs = map (vhostConfig: { name = vhostConfig.serverName; value = {
|
||
user = cfg.user;
|
||
group = lib.mkDefault cfg.group;
|
||
webroot = vhostConfig.acmeRoot;
|
||
extraDomains = genAttrs vhostConfig.serverAliases (alias: null);
|
||
postRun = ''
|
||
systemctl reload nginx
|
||
'';
|
||
}; }) acmeEnabledVhosts;
|
||
in
|
||
listToAttrs acmePairs
|
||
);
|
||
|
||
users.users = optionalAttrs (cfg.user == "nginx") (singleton
|
||
{ name = "nginx";
|
||
group = cfg.group;
|
||
uid = config.ids.uids.nginx;
|
||
});
|
||
|
||
users.groups = optionalAttrs (cfg.group == "nginx") (singleton
|
||
{ name = "nginx";
|
||
gid = config.ids.gids.nginx;
|
||
});
|
||
};
|
||
}
|