--- /dev/null
+{ config, pkgs, lib, php, name, secrets, ... }:
+{
+ # ssh-keyscan eldiron | nix-shell -p ssh-to-age --run ssh-to-age
+ secrets.ageKeys = [ "age1dxr5lhvtnjssfaqpnf6qx80h8gfwkxg3tdf35m6n9wljmk7wadfs3kmahj" ];
+ boot = {
+ kernelModules = [ "kvm-intel" ];
+ blacklistedKernelModules = [ "nvidiafb" ];
+ loader.timeout = 1;
+ loader.grub.devices = [ "/dev/sda" "/dev/sdc" ];
+ kernel.sysctl = {
+ # https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
+ "net.ipv4.tcp_sack" = 0;
+ };
+ supportedFilesystems = [ "zfs" ];
+ kernelParams = ["zfs.zfs_arc_max=6442450944"];
+ kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+ initrd.availableKernelModules = [ "ahci" "sd_mod" ];
+ initrd.secrets = {
+ "/boot/pass.key" = "/boot/pass.key";
+ };
+ };
+ services.udev.extraRules = ''
+ ACTION=="add", SUBSYSTEM=="net", ATTR{address}=="c8:60:00:56:a0:88", NAME="eth0"
+ '';
+ nix.settings.max-jobs = 8;
+ nixpkgs.config.permittedInsecurePackages = [
+ "python-2.7.18.6" # for nagios-cli
+ "nodejs-16.20.2" # for landing page building
+ ];
+
+ nixpkgs.overlays = [
+ php.overlays.php
+ ];
+ powerManagement.cpuFreqGovernor = "powersave";
+
+ security.acme.certs."${name}".postRun = builtins.concatStringsSep "\n" [
+ (lib.optionalString config.services.websites.env.production.enable "/run/current-system/sw/bin/machinectl shell httpd-production /usr/bin/env systemctl reload httpd.service")
+ (lib.optionalString config.services.websites.env.integration.enable "/run/current-system/sw/bin/machinectl shell httpd-integration /usr/bin/env systemctl reload httpd.service")
+ ];
+
+ fileSystems = {
+ # pools:
+ # zpool: ashift=12
+ # zfast: ashift=12
+ # zfs:
+ # zpool/: acltype=posixacl ; xattr=sa ; atime=off ; mountpoint=legacy
+ # zpool/root: encryption=on ; keyformat=passphrase ; keylocation=file:///boot/pass.key
+ # zpool/root/var: atime=on
+ # zfast/: acltype=posixacl ; xattr=sa ; atime=off ; mountpoint=legacy
+ # zfast/root: encryption=on ; keyformat=passphrase ; keylocation=file:///boot/pass.key
+ # zfast/root/etc: ø
+ # zfast/root/nix: ø
+ # zfast/root/tmp: async=disabled
+ # zfast/root/var: atime=on
+ # zfast/root/var/lib: ø
+ # zfast/root/var/lib/mysql: logbias=throughput ; atime=off ; primarycache=metadata
+ # zfast/root/var/lib/postgresql: recordsize=8K ; atime=off ; logbias=throughput
+ # zfast/root/var/lib/postgresql/11.0: ø
+ # zfast/root/var/lib/postgresql/11.0/pg_wal: ø
+ "/" = { fsType = "zfs"; device = "zpool/root"; };
+ "/boot" = { fsType = "ext4"; device = "/dev/disk/by-uuid/e6bb18fb-ff56-4b5f-ae9f-e60d40dc0622"; };
+ "/etc" = { fsType = "zfs"; device = "zpool/root/etc"; };
+ "/nix" = { fsType = "zfs"; device = "zfast/root/nix"; };
+ "/tmp" = { fsType = "zfs"; device = "zfast/root/tmp"; };
+ "/var" = { fsType = "zfs"; device = "zpool/root/var"; };
+ "/var/lib/mysql" = { fsType = "zfs"; device = "zfast/root/var/lib/mysql"; };
+ "/var/lib/postgresql" = { fsType = "zfs"; device = "zfast/root/var/lib/postgresql"; };
+ "/var/lib/postgresql/11.0" = { fsType = "zfs"; device = "zfast/root/var/lib/postgresql/11.0"; };
+ "/var/lib/postgresql/11.0/pg_wal" = { fsType = "zfs"; device = "zfast/root/var/lib/postgresql/11.0/pg_wal"; };
+ };
+ swapDevices = [ { label = "swap1"; } { label = "swap2"; } ];
+ hardware.enableRedistributableFirmware = true;
+
+ services.zfs = {
+ autoScrub = {
+ enable = false;
+ };
+ };
+ networking = {
+ hostId = "8262ca33"; # generated with head -c4 /dev/urandom | od -A none -t x4
+ firewall.enable = true;
+ firewall.allowedTCPPorts = [ config.myEnv.ports.zrepl_flony ];
+ # FIXME: on next reboot, remove the /27 and the localCommands
+ interfaces."eth0".ipv4.addresses = pkgs.lib.flatten (pkgs.lib.attrsets.mapAttrsToList
+ (n: ips: map (ip: { address = ip; prefixLength = 32; }) (ips.ip4 or []))
+ (pkgs.lib.attrsets.filterAttrs (n: v: n != "main") config.hostEnv.ips))
+ ++ [ { address = lib.head config.hostEnv.ips.main.ip4; prefixLength = 27; } ];
+ interfaces."eth0".ipv6.addresses = pkgs.lib.flatten (pkgs.lib.attrsets.mapAttrsToList
+ (n: ips: map (ip: { address = ip; prefixLength = (if n == "main" && ip == pkgs.lib.head ips.ip6 then 64 else 128); }) (ips.ip6 or []))
+ config.hostEnv.ips);
+ defaultGateway = "176.9.151.65";
+ localCommands = ''
+ # FIXME: Those commands were added by nixops and may not be
+ # actually needed
+ ip -6 addr add '2a01:4f8:160:3445::/64' dev 'eth0' || true
+ ip -4 route change '176.9.151.64/27' via '176.9.151.65' dev 'eth0' || true
+ ip -6 route add default via 'fe80::1' dev eth0 || true
+ '';
+ nameservers = [
+ "213.133.98.98"
+ "213.133.99.99"
+ "213.133.100.100"
+ "2a01:4f8:0:a0a1::add:1010"
+ "2a01:4f8:0:a102::add:9999"
+ "2a01:4f8:0:a111::add:9898"
+ ];
+ };
+
+ imports = [
+ secrets.nixosModules.users-config-eldiron
+ ./databases
+ ./databases/mariadb.nix
+ ./databases/openldap
+ ./databases/postgresql.nix
+ ./databases/redis.nix
+
+
+ ./monitoring.nix
+ ./ejabberd
+ ./buildbot
+ ./coturn.nix
+ ./dns.nix
+ ./duply_backup.nix
+ ./gemini
+ ./gitolite
+ ./mail
+ ./websites
+ ./webstats
+ ./irc.nix
+ ./pub
+ ./tasks
+ ./ftp.nix
+ ./mpd.nix
+ ./vpn
+ ];
+
+ myServices.buildbot.enable = true;
+ myServices.databases.enable = true;
+ myServices.gitolite.enable = true;
+ myServices.monitoring.enable = true;
+ myServices.irc.enable = true;
+ myServices.pub.enable = true;
+ myServices.tasks.enable = true;
+ myServices.mpd.enable = true;
+ myServices.dns.enable = true;
+ myServices.websites.enable = true;
+ myServices.gemini.enable = true;
+ myServices.mail.enable = true;
+ myServices.ejabberd.enable = true;
+ myServices.vpn.enable = true;
+ myServices.ftp.enable = true;
+
+ myServices.chatonsProperties.hostings.infogerance = {
+ file.datetime = "2022-08-27T18:50:00";
+ hosting = {
+ name = "Infogérance";
+ description = "Administration de serveurs";
+ website = "https://www.immae.eu/";
+ logo = "https://assets.immae.eu/logo.jpg";
+ type = "HOSTEDSERVER";
+ status.level = "OK";
+ status.description = "OK";
+ registration.load = "OPEN";
+ install.type = "PACKAGE";
+ };
+ };
+
+ services.netdata.enable = true;
+ services.netdata.config.global."memory mode" = "none";
+ services.netdata.config.health."enabled" = "no";
+ services.netdata.config.web.mode = "none";
+ users.users."${config.services.netdata.user}".extraGroups = [ "keys" ];
+ services.netdata.configDir."stream.conf" = config.secrets.fullPaths."netdata-stream.conf";
+ secrets.keys = {
+ "ldap/pam_pgsql" = {
+ user = "root";
+ group = "root";
+ permissions = "0400";
+ text = ''
+ database = immae
+ user = immae_auth_read
+ password = {{ .postgresql.immae_auth_read }}
+ table = ldap_users
+ user_column = login
+ pw_type = function
+ auth_query = SELECT (mechanism = 'SSHA' AND password = encode(digest( %p || salt, 'sha1'), 'hex')) FROM ldap_users WHERE login = %u OR login || '@' || realm = %u
+ #pwd_query = WITH newsalt as (select gen_random_bytes(4)) UPDATE ldap_users SET password = encode(digest( %p || (SELECT * FROM newsalt), 'sha1'), 'hex'), salt = (SELECT * FROM newsalt), mechanism = 'SSHA' WHERE login = %u OR login || '@' || realm = %u
+ '';
+ };
+
+ "netdata-stream.conf" = {
+ user = config.services.netdata.user;
+ group = config.services.netdata.group;
+ permissions = "0400";
+ text = ''
+ [stream]
+ enabled = yes
+ destination = ${config.myEnv.monitoring.netdata_aggregator}
+ api key = ${config.myEnv.monitoring.netdata_keys.eldiron}
+ '';
+ };
+ "zrepl_backup/identity" = {
+ user = "root";
+ group = "root";
+ permissions = "0400";
+ text = config.myEnv.zrepl_backup.ssh_key.private;
+ };
+ "zrepl/${name}.key" = {
+ permissions = "0400";
+ text = config.myEnv.zrepl_backup.certs."${name}".key;
+ user = "root";
+ group = "root";
+ };
+ } // builtins.listToAttrs (map (x: lib.attrsets.nameValuePair "zrepl/certificates/${x}.crt" {
+ permissions = "0400";
+ text = config.myEnv.zrepl_backup.certs."${x}".certificate;
+ user = "root";
+ group = "root";
+ }) (builtins.attrNames config.myEnv.zrepl_backup.certs));
+
+ programs.ssh.knownHosts.dilion = {
+ extraHostNames = ["dilion.immae.eu"];
+ publicKey = config.myEnv.servers.dilion.hostKey;
+ };
+
+ services.cron = {
+ enable = true;
+ mailto = "cron@immae.eu";
+ systemCronJobs = [
+ ''
+ 0 0 * * * root journalctl -q --since="25 hours ago" -u postfix -t postfix/smtpd -g "immae.eu.*Recipient address rejected"
+ # Need a way to blacklist properly
+ # 0 0 * * * root journalctl -q --since="25 hours ago" -u postfix -t postfix/smtpd -g "NOQUEUE:"
+ 0 0 * * * root journalctl -q --since="25 hours ago" -u postfix -t postfix/smtp -g "status=bounced"
+ ''
+ ];
+ };
+
+ environment.systemPackages = [ pkgs.bindfs ];
+
+ environment.etc."mdadm.conf" = {
+ enable = true;
+ mode = "0644";
+ user = "root";
+ text = "MAILADDR ${config.myEnv.monitoring.email}";
+ };
+
+ systemd.services.zrepl.path = [ pkgs.openssh ];
+ services.zrepl = {
+ enable = true;
+ settings = {
+ jobs = [
+ {
+ type = "push";
+ # must not change
+ name = "backup-to-dilion";
+ filesystems."zpool/root" = true;
+ filesystems."zpool/root/etc" = true;
+ filesystems."zpool/root/var<" = true;
+ connect = {
+ address = "dilion.immae.eu:19000";
+ type = "tls";
+ server_cn = "dilion";
+ ca = config.secrets.fullPaths."zrepl/certificates/dilion.crt";
+ cert = config.secrets.fullPaths."zrepl/certificates/eldiron.crt";
+ key = config.secrets.fullPaths."zrepl/eldiron.key";
+ };
+ snapshotting = {
+ type = "periodic";
+ prefix = "zrepl_";
+ interval = "1h";
+ # hooks = [
+ # {
+ # type = "mysql-lock-tables";
+ # dsn = "${config.myEnv.zrepl_backup.mysql.user}:${config.myEnv.zrepl_backup.mysql.password}@tcp(localhost)/";
+ # filesystems."zpool/root/var" = true;
+ # }
+ # {
+ # type = "command";
+ # path = pkgs.writeScript "redis-dump" ''
+ # #!${pkgs.stdenv.shell}
+ # ${pkgs.redis}/bin/redis-cli bgsave
+ # '';
+ # err_is_fatal = false;
+ # filesystems."zpool/root/var" = true;
+ # }
+ # ];
+ };
+ send.encrypted = true;
+ pruning.keep_sender = [
+ { type = "regex"; regex = "^manual_.*"; }
+ { type = "grid"; grid = "24x1h | 7x1d | 4x7d | 6x30d"; regex = "^zrepl_.*"; }
+ ];
+ pruning.keep_receiver = [
+ { type = "regex"; regex = "^manual_.*"; }
+ { type = "grid"; grid = "6x4h | 7x1d | 4x7d | 6x30d"; regex = "^zrepl_.*"; }
+ ];
+ }
+ {
+ type = "source";
+ # must not change
+ name = "backup-to-wd-zpool";
+ serve.type = "tls";
+ serve.listen = ":${builtins.toString config.myEnv.ports.zrepl_flony}";
+ serve.ca = config.secrets.fullPaths."zrepl/certificates/flony.crt";
+ serve.cert = config.secrets.fullPaths."zrepl/certificates/eldiron.crt";
+ serve.key = config.secrets.fullPaths."zrepl/eldiron.key";
+ serve.client_cns = [ "flony" ];
+ filesystems."zpool/root" = true;
+ filesystems."zpool/root/etc" = true;
+ filesystems."zpool/root/var<" = true;
+ filesystems."zfast/root/var<" = true;
+ send.encrypted = true;
+ snapshotting.type = "manual";
+ }
+ ];
+ };
+ };
+
+ environment.etc."fail2ban/filter.d/postgresql.conf".text = ''
+ [Definition]
+ failregex = <HOST> \S+ FATAL: password authentication failed for user .+$
+ <HOST> \S+ FATAL: PAM authentication failed for user.+$
+ <HOST> \S+ FATAL: no pg_hba.conf entry for host.+$
+ '';
+ environment.etc."fail2ban/filter.d/mysqld-auth.local".text = ''
+ [Definition]
+ _daemon = mysql[-\w]*
+ '';
+ services.fail2ban.jails.dovecot = ''
+ enabled = true
+ '';
+ services.fail2ban.jails.postfix-sasl = ''
+ enabled = true
+ '';
+ services.fail2ban.jails.proftpd = ''
+ enabled = true
+ '';
+ services.fail2ban.jails.postgresql = ''
+ enabled = true
+ port = 5432
+ logpath = %(syslog_daemon)s
+ backend = %(default_backend)s
+ journalmatch = _SYSTEMD_UNIT=postgresql.service + _COMM=postgres
+ '';
+ services.fail2ban.jails.mysqld-auth = ''
+ enabled = true
+ journalmatch = _SYSTEMD_UNIT=mysql.service + _COMM=mysqld
+ '';
+ # This value determines the NixOS release with which your system is
+ # to be compatible, in order to avoid breaking some software such as
+ # database servers. You should change this only after NixOS release
+ # notes say you should.
+ # https://nixos.org/nixos/manual/release-notes.html
+ system.stateVersion = "23.05"; # Did you read the comment?
+
+ security.pam.services.ldap.text = ''
+ # Authentication from ldap for pgsql
+ auth required ${pkgs.pam_pgsql}/lib/security/pam_pgsql.so config_file=/var/secrets/ldap/pam_pgsql
+ account required ${pkgs.pam_pgsql}/lib/security/pam_pgsql.so config_file=/var/secrets/ldap/pam_pgsql
+ '';
+ services.saslauthd = {
+ enable = true;
+ mechanism = "pam";
+ };
+ environment.etc."sasl2/slapd.conf".text = ''
+ mech_list: plain
+ pwcheck_method: saslauthd
+ saslauthd_path: /run/saslauthd/mux
+ '';
+}
projects / perso / Immae / Config / Nix.git / blobdiff