forked from mirrors/nixpkgs
283 lines
8 KiB
Nix
283 lines
8 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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virtualHosts = mapAttrs (vhostName: vhostConfig:
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vhostConfig // (optionalAttrs vhostConfig.enableACME {
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sslCertificate = "/var/lib/acme/${vhostName}/fullchain.pem";
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sslCertificateKey = "/var/lib/acme/${vhostName}/key.pem";
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})
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) cfg.virtualHosts;
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configFile = pkgs.writeText "nginx.conf" ''
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user ${cfg.user} ${cfg.group};
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error_log stderr;
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daemon off;
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${cfg.config}
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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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# 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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# use secure TLS defaults
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ssl_protocols ${cfg.sslProtocols};
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ssl_session_cache shared:SSL:42m;
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ssl_session_timeout 23m;
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ssl_ciphers ${cfg.sslCiphers};
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ssl_ecdh_curve secp521r1;
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ssl_prefer_server_ciphers on;
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${optionalString (cfg.sslDhparam != null) "ssl_dhparam ${cfg.sslDhparam};"}
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ssl_stapling on;
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ssl_stapling_verify on;
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gzip on;
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gzip_disable "msie6";
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gzip_proxied any;
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gzip_comp_level 9;
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gzip_buffers 16 8k;
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gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
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# sane proxy settings/headers
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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 Accept-Encoding "";
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proxy_redirect off;
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client_max_body_size 10m;
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client_body_buffer_size 128k;
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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_buffers 32 4k;
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proxy_buffer_size 8k;
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proxy_http_version 1.0;
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server_tokens ${if cfg.serverTokens then "on" else "off"};
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${vhosts}
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${cfg.httpConfig}
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}
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${cfg.appendConfig}
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'';
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vhosts = concatStringsSep "\n" (mapAttrsToList (serverName: vhost:
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let
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ssl = vhost.enableSSL || vhost.forceSSL;
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port = if vhost.port != null then vhost.port else (if ssl then 443 else 80);
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listenString = toString port + optionalString ssl " ssl spdy";
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acmeLocation = optionalString vhost.enableACME ''
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location /.well-known/acme-challenge {
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try_files $uri @acme-fallback;
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root ${vhost.acmeRoot};
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}
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location @acme-fallback {
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proxy_pass http://${vhost.acmeFallbackHost};
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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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listen 80;
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listen [::]:80;
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server_name ${serverName} ${concatStringsSep " " vhost.serverAliases};
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${acmeLocation}
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location / {
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return 301 https://$host${optionalString (port != 443) ":${port}"}$request_uri;
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}
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}
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''}
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server {
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listen ${listenString};
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listen [::]:${listenString};
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server_name ${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 https://${vhost.globalRedirect}$request_uri;
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''}
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${optionalString ssl ''
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ssl_certificate ${vhost.sslCertificate};
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ssl_certificate_key ${vhost.sslCertificateKey};
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''}
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${genLocations 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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genLocations = locations: concatStringsSep "\n" (mapAttrsToList (location: config: ''
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location ${location} {
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${optionalString (config.proxyPass != null) "proxy_pass ${config.proxyPass};"}
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${optionalString (config.root != null) "root ${config.root};"}
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${config.extraConfig}
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}
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'') locations);
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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 = mkOption {
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default = false;
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type = types.bool;
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description = "
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Enable the nginx Web Server.
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";
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};
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package = mkOption {
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default = pkgs.nginx;
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defaultText = "pkgs.nginx";
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type = types.package;
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description = "
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Nginx package to use.
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";
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};
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config = mkOption {
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default = "events {}";
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description = "
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Verbatim nginx.conf configuration.
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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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httpConfig = mkOption {
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type = types.lines;
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default = "";
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description = "Configuration lines to be appended inside of the http {} block.";
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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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sslCiphers = mkOption {
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type = types.str;
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default = "EDH+CHACHA20:EDH+AES:EECDHE+CHACHA20:ECDHE+AES:+AES128:-DSS";
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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";
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example = "TLSv1 TLSv1.1 TLSv1.2";
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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 = literalExample "/path/to/dhparams.pem";
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description = "Path to DH parameters file.";
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};
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virtualHosts = mkOption {
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type = types.attrsOf (types.submodule (import ./vhost-options.nix {
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inherit lib;
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}));
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default = {
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localhost = {};
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};
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example = [];
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description = ''
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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# TODO: test user supplied config file pases syntax test
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systemd.services.nginx = {
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description = "Nginx Web Server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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preStart =
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''
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mkdir -p ${cfg.stateDir}/logs
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chmod 700 ${cfg.stateDir}
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chown -R ${cfg.user}:${cfg.group} ${cfg.stateDir}
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'';
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/nginx -c ${configFile} -p ${cfg.stateDir}";
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ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
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Restart = "always";
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RestartSec = "10s";
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StartLimitInterval = "1min";
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};
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};
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security.acme.certs = filterAttrs (n: v: v != {}) (
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mapAttrs (vhostName: vhostConfig:
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optionalAttrs vhostConfig.enableACME {
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webroot = vhostConfig.acmeRoot;
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extraDomains = genAttrs vhostConfig.serverAliases (alias: null);
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}
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) virtualHosts
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);
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users.extraUsers = optionalAttrs (cfg.user == "nginx") (singleton
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{ name = "nginx";
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group = cfg.group;
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uid = config.ids.uids.nginx;
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});
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users.extraGroups = optionalAttrs (cfg.group == "nginx") (singleton
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{ name = "nginx";
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gid = config.ids.gids.nginx;
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});
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};
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}
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