forked from mirrors/nixpkgs
982c5a1f0e
- Use an acme user and group, allow group override only
- Use hashes to determine when certs actually need to regenerate
- Avoid running lego more than necessary
- Harden permissions
- Support "systemctl clean" for cert regeneration
- Support reuse of keys between some configuration changes
- Permissions fix services solves for previously root owned certs
- Add a note about multiple account creation and emails
- Migrate extraDomains to a list
- Deprecate user option
- Use minica for self-signed certs
- Rewrite all tests
I thought of a few more cases where things may go wrong,
and added tests to cover them. In particular, the web server
reload services were depending on the target - which stays alive,
meaning that the renewal timer wouldn't be triggering a reload
and old certs would stay on the web servers.
I encountered some problems ensuring that the reload took place
without accidently triggering it as part of the test. The sync
commands I added ended up being essential and I'm not sure why,
it seems like either node.succeed ends too early or there's an
oddity of the vm's filesystem I'm not aware of.
- Fix duplicate systemd rules on reload services
Since useACMEHost is not unique to every vhost, if one cert
was reused many times it would create duplicate entries in
${server}-config-reload.service for wants, before and
ConditionPathExists
805 lines
27 KiB
Nix
805 lines
27 KiB
Nix
{ config, lib, pkgs, ... }:
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||
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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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dependentCertNames = unique (map (hostOpts: hostOpts.certName) acmeEnabledVhosts);
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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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certName = if vhostConfig.useACMEHost != null
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then vhostConfig.useACMEHost
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else serverName;
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in
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vhostConfig // {
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inherit serverName certName;
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} // (optionalAttrs (vhostConfig.enableACME || vhostConfig.useACMEHost != null) {
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sslCertificate = "${certs.${certName}.directory}/fullchain.pem";
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sslCertificateKey = "${certs.${certName}.directory}/key.pem";
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sslTrustedCertificate = "${certs.${certName}.directory}/chain.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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commonHttpConfig = ''
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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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'';
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configFile = pkgs.writers.writeNginxConfig "nginx.conf" ''
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pid /run/nginx/nginx.pid;
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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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${optionalString (cfg.httpConfig == "" && cfg.config == "") ''
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http {
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${commonHttpConfig}
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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 4096;
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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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# Keep in sync with https://ssl-config.mozilla.org/#server=nginx&config=intermediate
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ssl_session_timeout 1d;
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ssl_session_cache shared:SSL:10m;
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# Breaks forward secrecy: https://github.com/mozilla/server-side-tls/issues/135
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ssl_session_tickets off;
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# We don't enable insecure ciphers by default, so this allows
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# clients to pick the most performant, per https://github.com/mozilla/server-side-tls/issues/260
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ssl_prefer_server_ciphers off;
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|
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# OCSP stapling
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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 ${recommendedProxyConfig};
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''}
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|
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${optionalString (cfg.mapHashBucketSize != null) ''
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map_hash_bucket_size ${toString cfg.mapHashBucketSize};
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''}
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|
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${optionalString (cfg.mapHashMaxSize != null) ''
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map_hash_max_size ${toString cfg.mapHashMaxSize};
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''}
|
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|
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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 ${if cfg.serverTokens then "on" else "off"};
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|
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${cfg.commonHttpConfig}
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|
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${vhosts}
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|
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${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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|
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${cfg.appendHttpConfig}
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}''}
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|
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${optionalString (cfg.httpConfig != "") ''
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http {
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${commonHttpConfig}
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${cfg.httpConfig}
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}''}
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${cfg.appendConfig}
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'';
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configPath = if cfg.enableReload
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then "/etc/nginx/nginx.conf"
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else configFile;
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execCommand = "${cfg.package}/bin/nginx -c '${configPath}'";
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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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|
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redirectListen = filter (x: !x.ssl) defaultListen;
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|
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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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|
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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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|
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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 ${vhost.sslTrustedCertificate};
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''}
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|
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${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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||
|
||
${mkLocations vhost.locations}
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||
|
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${vhost.extraConfig}
|
||
}
|
||
''
|
||
) 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};"
|
||
}
|
||
${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;
|
||
''}
|
||
${optionalString config.proxyWebsockets ''
|
||
proxy_http_version 1.1;
|
||
proxy_set_header Upgrade $http_upgrade;
|
||
proxy_set_header Connection $connection_upgrade;
|
||
''}
|
||
${optionalString (config.index != null) "index ${config.index};"}
|
||
${optionalString (config.tryFiles != null) "try_files ${config.tryFiles};"}
|
||
${optionalString (config.root != null) "root ${config.root};"}
|
||
${optionalString (config.alias != null) "alias ${config.alias};"}
|
||
${optionalString (config.return != null) "return ${config.return};"}
|
||
${config.extraConfig}
|
||
${optionalString (config.proxyPass != null && cfg.recommendedProxySettings) "include ${recommendedProxyConfig};"}
|
||
}
|
||
'') (sortProperties (mapAttrsToList (k: v: v // { location = k; }) locations)));
|
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mkHtpasswd = vhostName: authDef: pkgs.writeText "${vhostName}.htpasswd" (
|
||
concatStringsSep "\n" (mapAttrsToList (user: password: ''
|
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${user}:{PLAIN}${password}
|
||
'') authDef)
|
||
);
|
||
in
|
||
|
||
{
|
||
options = {
|
||
services.nginx = {
|
||
enable = mkEnableOption "Nginx Web Server";
|
||
|
||
statusPage = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = "
|
||
Enable status page reachable from localhost on http://127.0.0.1/nginx_status.
|
||
";
|
||
};
|
||
|
||
recommendedTlsSettings = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = "
|
||
Enable recommended TLS settings.
|
||
";
|
||
};
|
||
|
||
recommendedOptimisation = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = "
|
||
Enable recommended optimisation settings.
|
||
";
|
||
};
|
||
|
||
recommendedGzipSettings = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = "
|
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Enable recommended gzip settings.
|
||
";
|
||
};
|
||
|
||
recommendedProxySettings = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = "
|
||
Enable recommended proxy settings.
|
||
";
|
||
};
|
||
|
||
package = mkOption {
|
||
default = pkgs.nginxStable;
|
||
defaultText = "pkgs.nginxStable";
|
||
type = types.package;
|
||
description = "
|
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Nginx package to use. This defaults to the stable version. Note
|
||
that the nginx team recommends to use the mainline version which
|
||
available in nixpkgs as <literal>nginxMainline</literal>.
|
||
";
|
||
};
|
||
|
||
logError = mkOption {
|
||
default = "stderr";
|
||
description = "
|
||
Configures logging.
|
||
The first parameter defines a file that will store the log. The
|
||
special value stderr selects the standard error file. Logging to
|
||
syslog can be configured by specifying the “syslog:” prefix.
|
||
The second parameter determines the level of logging, and can be
|
||
one of the following: debug, info, notice, warn, error, crit,
|
||
alert, or emerg. Log levels above are listed in the order of
|
||
increasing severity. Setting a certain log level will cause all
|
||
messages of the specified and more severe log levels to be logged.
|
||
If this parameter is omitted then error is used.
|
||
";
|
||
};
|
||
|
||
preStart = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = "
|
||
Shell commands executed before the service's nginx is started.
|
||
";
|
||
};
|
||
|
||
config = mkOption {
|
||
default = "";
|
||
description = "
|
||
Verbatim nginx.conf configuration.
|
||
This is mutually exclusive with the structured configuration
|
||
via virtualHosts and the recommendedXyzSettings configuration
|
||
options. See appendConfig for appending to the generated http block.
|
||
";
|
||
};
|
||
|
||
appendConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
Configuration lines appended to the generated Nginx
|
||
configuration file. Commonly used by different modules
|
||
providing http snippets. <option>appendConfig</option>
|
||
can be specified more than once and it's value will be
|
||
concatenated (contrary to <option>config</option> which
|
||
can be set only once).
|
||
'';
|
||
};
|
||
|
||
commonHttpConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
example = ''
|
||
resolver 127.0.0.1 valid=5s;
|
||
|
||
log_format myformat '$remote_addr - $remote_user [$time_local] '
|
||
'"$request" $status $body_bytes_sent '
|
||
'"$http_referer" "$http_user_agent"';
|
||
'';
|
||
description = ''
|
||
With nginx you must provide common http context definitions before
|
||
they are used, e.g. log_format, resolver, etc. inside of server
|
||
or location contexts. Use this attribute to set these definitions
|
||
at the appropriate location.
|
||
'';
|
||
};
|
||
|
||
httpConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = "
|
||
Configuration lines to be set inside the http block.
|
||
This is mutually exclusive with the structured configuration
|
||
via virtualHosts and the recommendedXyzSettings configuration
|
||
options. See appendHttpConfig for appending to the generated http block.
|
||
";
|
||
};
|
||
|
||
eventsConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
Configuration lines to be set inside the events block.
|
||
'';
|
||
};
|
||
|
||
appendHttpConfig = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = "
|
||
Configuration lines to be appended to the generated http block.
|
||
This is mutually exclusive with using config and httpConfig for
|
||
specifying the whole http block verbatim.
|
||
";
|
||
};
|
||
|
||
enableReload = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = ''
|
||
Reload nginx when configuration file changes (instead of restart).
|
||
The configuration file is exposed at <filename>/etc/nginx/nginx.conf</filename>.
|
||
See also <literal>systemd.services.*.restartIfChanged</literal>.
|
||
'';
|
||
};
|
||
|
||
enableSandbox = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = ''
|
||
Starting Nginx web server with additional sandbox/hardening options.
|
||
'';
|
||
};
|
||
|
||
user = mkOption {
|
||
type = types.str;
|
||
default = "nginx";
|
||
description = "User account under which nginx runs.";
|
||
};
|
||
|
||
group = mkOption {
|
||
type = types.str;
|
||
default = "nginx";
|
||
description = "Group account under which nginx runs.";
|
||
};
|
||
|
||
serverTokens = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = "Show nginx version in headers and error pages.";
|
||
};
|
||
|
||
clientMaxBodySize = mkOption {
|
||
type = types.str;
|
||
default = "10m";
|
||
description = "Set nginx global client_max_body_size.";
|
||
};
|
||
|
||
sslCiphers = mkOption {
|
||
type = types.str;
|
||
# Keep in sync with https://ssl-config.mozilla.org/#server=nginx&config=intermediate
|
||
default = "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384";
|
||
description = "Ciphers to choose from when negotiating TLS handshakes.";
|
||
};
|
||
|
||
sslProtocols = mkOption {
|
||
type = types.str;
|
||
default = "TLSv1.2 TLSv1.3";
|
||
example = "TLSv1 TLSv1.1 TLSv1.2 TLSv1.3";
|
||
description = "Allowed TLS protocol versions.";
|
||
};
|
||
|
||
sslDhparam = mkOption {
|
||
type = types.nullOr types.path;
|
||
default = null;
|
||
example = "/path/to/dhparams.pem";
|
||
description = "Path to DH parameters file.";
|
||
};
|
||
|
||
proxyResolveWhileRunning = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Resolves domains of proxyPass targets at runtime
|
||
and not only at start, you have to set
|
||
services.nginx.resolver, too.
|
||
'';
|
||
};
|
||
|
||
mapHashBucketSize = mkOption {
|
||
type = types.nullOr (types.enum [ 32 64 128 ]);
|
||
default = null;
|
||
description = ''
|
||
Sets the bucket size for the map variables hash tables. Default
|
||
value depends on the processor’s cache line size.
|
||
'';
|
||
};
|
||
|
||
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";
|
||
};
|
||
};
|
||
};
|
||
|
||
imports = [
|
||
(mkRemovedOptionModule [ "services" "nginx" "stateDir" ] ''
|
||
The Nginx log directory has been moved to /var/log/nginx, the cache directory
|
||
to /var/cache/nginx. The option services.nginx.stateDir has been removed.
|
||
'')
|
||
];
|
||
|
||
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 (certName: [ "acme-finished-${certName}.target" ]) dependentCertNames);
|
||
after = [ "network.target" ] ++ map (certName: "acme-selfsigned-${certName}.service") dependentCertNames;
|
||
# Nginx needs to be started in order to be able to request certificates
|
||
# (it's hosting the acme challenge after all)
|
||
# This fixes https://github.com/NixOS/nixpkgs/issues/81842
|
||
before = map (certName: "acme-${certName}.service") dependentCertNames;
|
||
stopIfChanged = false;
|
||
preStart = ''
|
||
${cfg.preStart}
|
||
${execCommand} -t
|
||
'';
|
||
serviceConfig = {
|
||
ExecStart = execCommand;
|
||
ExecReload = [
|
||
"${execCommand} -t"
|
||
"${pkgs.coreutils}/bin/kill -HUP $MAINPID"
|
||
];
|
||
Restart = "always";
|
||
RestartSec = "10s";
|
||
StartLimitInterval = "1min";
|
||
# User and group
|
||
User = cfg.user;
|
||
Group = cfg.group;
|
||
# Runtime directory and mode
|
||
RuntimeDirectory = "nginx";
|
||
RuntimeDirectoryMode = "0750";
|
||
# Cache directory and mode
|
||
CacheDirectory = "nginx";
|
||
CacheDirectoryMode = "0750";
|
||
# Logs directory and mode
|
||
LogsDirectory = "nginx";
|
||
LogsDirectoryMode = "0750";
|
||
# Capabilities
|
||
AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" "CAP_SYS_RESOURCE" ];
|
||
CapabilityBoundingSet = [ "CAP_NET_BIND_SERVICE" "CAP_SYS_RESOURCE" ];
|
||
# Security
|
||
NoNewPrivileges = true;
|
||
} // optionalAttrs cfg.enableSandbox {
|
||
# Sandboxing
|
||
ProtectSystem = "strict";
|
||
ProtectHome = mkDefault true;
|
||
PrivateTmp = true;
|
||
PrivateDevices = true;
|
||
ProtectHostname = true;
|
||
ProtectKernelTunables = true;
|
||
ProtectKernelModules = true;
|
||
ProtectControlGroups = true;
|
||
RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" ];
|
||
LockPersonality = true;
|
||
MemoryDenyWriteExecute = !(builtins.any (mod: (mod.allowMemoryWriteExecute or false)) pkgs.nginx.modules);
|
||
RestrictRealtime = true;
|
||
RestrictSUIDSGID = true;
|
||
PrivateMounts = true;
|
||
# System Call Filtering
|
||
SystemCallArchitectures = "native";
|
||
};
|
||
};
|
||
|
||
environment.etc."nginx/nginx.conf" = mkIf cfg.enableReload {
|
||
source = configFile;
|
||
};
|
||
|
||
# postRun hooks on cert renew can't be used to restart Nginx since renewal
|
||
# runs as the unprivileged acme user. sslTargets are added to wantedBy + before
|
||
# which allows the acme-finished-$cert.target to signify the successful updating
|
||
# of certs end-to-end.
|
||
systemd.services.nginx-config-reload = let
|
||
sslServices = map (certName: "acme-${certName}.service") dependentCertNames;
|
||
sslTargets = map (certName: "acme-finished-${certName}.target") dependentCertNames;
|
||
in mkIf (cfg.enableReload || sslServices != []) {
|
||
wants = optionals (cfg.enableReload) [ "nginx.service" ];
|
||
wantedBy = sslServices ++ [ "multi-user.target" ];
|
||
# Before the finished targets, after the renew services.
|
||
# This service might be needed for HTTP-01 challenges, but we only want to confirm
|
||
# certs are updated _after_ config has been reloaded.
|
||
before = sslTargets;
|
||
after = sslServices;
|
||
restartTriggers = optionals (cfg.enableReload) [ configFile ];
|
||
# Block reloading if not all certs exist yet.
|
||
# Happens when config changes add new vhosts/certs.
|
||
unitConfig.ConditionPathExists = optionals (sslServices != []) (map (certName: certs.${certName}.directory + "/fullchain.pem") dependentCertNames);
|
||
serviceConfig = {
|
||
Type = "oneshot";
|
||
TimeoutSec = 60;
|
||
ExecCondition = "/run/current-system/systemd/bin/systemctl -q is-active nginx.service";
|
||
ExecStart = "/run/current-system/systemd/bin/systemctl reload nginx.service";
|
||
};
|
||
};
|
||
|
||
security.acme.certs = let
|
||
acmePairs = map (vhostConfig: nameValuePair vhostConfig.serverName {
|
||
group = mkDefault cfg.group;
|
||
webroot = vhostConfig.acmeRoot;
|
||
extraDomainNames = vhostConfig.serverAliases;
|
||
# Filter for enableACME-only vhosts. Don't want to create dud certs
|
||
}) (filter (vhostConfig: vhostConfig.useACMEHost == null) acmeEnabledVhosts);
|
||
in listToAttrs acmePairs;
|
||
|
||
users.users = optionalAttrs (cfg.user == "nginx") {
|
||
nginx = {
|
||
group = cfg.group;
|
||
uid = config.ids.uids.nginx;
|
||
};
|
||
};
|
||
|
||
users.groups = optionalAttrs (cfg.group == "nginx") {
|
||
nginx.gid = config.ids.gids.nginx;
|
||
};
|
||
|
||
};
|
||
}
|