modules/private/system/backup-2.nix

   1 { privateFiles }:
   2 { config, pkgs, resources, name, ... }:
   3 {
   4   boot.kernelPackages = pkgs.linuxPackages_latest;
   5   myEnv = import "${privateFiles}/environment.nix" // { inherit privateFiles; };
   6
   7   imports = builtins.attrValues (import ../..);
   8
   9   deployment = {
  10     targetEnv = "hetznerCloud";
  11     hetznerCloud = {
  12       authToken = config.myEnv.hetznerCloud.authToken;
  13       datacenter = "hel1-dc2";
  14       location  ="hel1";
  15       serverType = "cx11";
  16     };
  17   };
  18
  19   fileSystems = {
  20     "/backup2" = {
  21       fsType = "ext4";
  22       device = "UUID=b9425333-f567-435d-94d8-b26c22d93426";
  23     };
  24   };
  25
  26   networking = {
  27     firewall.enable = true;
  28     interfaces."ens3".ipv4.addresses = pkgs.lib.attrsets.mapAttrsToList
  29       (n: ips: { address = ips.ip4; prefixLength = 32; })
  30       (pkgs.lib.attrsets.filterAttrs (n: v: n != "main") config.hostEnv.ips);
  31     interfaces."ens3".ipv6.addresses = pkgs.lib.flatten (pkgs.lib.attrsets.mapAttrsToList
  32       (n: ips: map (ip: { address = ip; prefixLength = (if n == "main" && ip == pkgs.lib.head ips.ip6 then 64 else 128); }) (ips.ip6 or []))
  33       config.hostEnv.ips);
  34     defaultGateway6 = { address = "fe80::1"; interface = "ens3"; };
  35   };
  36
  37   myServices.certificates.enable = true;
  38   security.acme.certs."${name}" = {
  39     user = config.services.nginx.user;
  40     group = config.services.nginx.group;
  41   };
  42   services.nginx = {
  43     enable = true;
  44     recommendedOptimisation = true;
  45     recommendedGzipSettings = true;
  46     recommendedProxySettings = true;
  47   };
  48   networking.firewall.allowedTCPPorts = [ 80 443 ];
  49
  50   services.cron = {
  51     mailto = "cron@immae.eu";
  52     enable = true;
  53   };
  54
  55   services.rsyncBackup = {
  56     mountpoint = "/backup2";
  57     profiles = config.myEnv.rsync_backup.profiles;
  58     ssh_key_public = config.myEnv.rsync_backup.ssh_key.public;
  59     ssh_key_private = config.myEnv.rsync_backup.ssh_key.private;
  60   };
  61
  62   myServices.mailRelay.enable = true;
  63   myServices.mailBackup.enable = true;
  64   myServices.monitoring.enable = true;
  65   myServices.databasesReplication = {
  66     postgresql = {
  67       enable = true;
  68       base = "/backup2";
  69       mainPackage = pkgs.postgresql;
  70       hosts = {
  71         eldiron = {
  72           slot = "backup_2";
  73           connection = "postgresql://backup-2:${config.hostEnv.ldap.password}@eldiron.immae.eu";
  74           package = pkgs.postgresql;
  75         };
  76       };
  77     };
  78     mariadb = {
  79       enable = true;
  80       base = "/backup2";
  81       hosts = {
  82         eldiron = {
  83           serverId = 2;
  84           # mysql resolves "backup-2" host and checks the ip, but uses /etc/hosts which only contains ip4
  85           host = config.myEnv.servers.eldiron.ips.main.ip4;
  86           port = "3306";
  87           user = "backup-2";
  88           password = config.hostEnv.ldap.password;
  89           dumpUser = "root";
  90           dumpPassword = config.myEnv.databases.mysql.systemUsers.root;
  91         };
  92       };
  93     };
  94     redis = {
  95       enable = true;
  96       base = "/backup2";
  97       hosts = {
  98         eldiron = {
  99           host = "127.0.0.1";
 100           port = "16379";
 101         };
 102       };
 103     };
 104     openldap = {
 105       enable = true;
 106       base = "/backup2";
 107       hosts = {
 108         eldiron = {
 109           url = "ldaps://${config.myEnv.ldap.host}:636";
 110           dn = config.myEnv.ldap.replication_dn;
 111           password = config.myEnv.ldap.replication_pw;
 112           base = config.myEnv.ldap.base;
 113         };
 114       };
 115     };
 116   };
 117
 118   # This value determines the NixOS release with which your system is
 119   # to be compatible, in order to avoid breaking some software such as
 120   # database servers. You should change this only after NixOS release
 121   # notes say you should.
 122   # https://nixos.org/nixos/manual/release-notes.html
 123   system.stateVersion = "20.03"; # Did you read the comment?
 124 }