modules/private/system/backup-2.nix

   1 { privateFiles }:
   2 { config, pkgs, resources, ... }:
   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   services.nginx = {
  39     enable = true;
  40     recommendedOptimisation = true;
  41     recommendedGzipSettings = true;
  42     recommendedProxySettings = true;
  43   };
  44   networking.firewall.allowedTCPPorts = [ 80 443 ];
  45
  46   services.cron = {
  47     mailto = "cron@immae.eu";
  48     enable = true;
  49   };
  50
  51   services.rsyncBackup = {
  52     mountpoint = "/backup2";
  53     mailto = config.myEnv.rsync_backup.mailto;
  54     profiles = config.myEnv.rsync_backup.profiles;
  55     ssh_key_public = config.myEnv.rsync_backup.ssh_key.public;
  56     ssh_key_private = config.myEnv.rsync_backup.ssh_key.private;
  57   };
  58
  59   myServices.mailRelay.enable = true;
  60   myServices.mailBackup.enable = true;
  61   myServices.monitoring.enable = true;
  62   myServices.databasesReplication = {
  63     postgresql = {
  64       enable = true;
  65       base = "/backup2";
  66       hosts = {
  67         eldiron = {
  68           slot = "backup_2";
  69           connection = "postgresql://backup-2:${config.hostEnv.ldap.password}@eldiron.immae.eu";
  70         };
  71       };
  72     };
  73     mariadb = {
  74       enable = true;
  75       base = "/backup2";
  76       hosts = {
  77         eldiron = {
  78           serverId = 2;
  79           # mysql resolves "backup-2" host and checks the ip, but uses /etc/hosts which only contains ip4
  80           host = config.myEnv.servers.eldiron.ips.main.ip4;
  81           port = "3306";
  82           user = "backup-2";
  83           password = config.hostEnv.ldap.password;
  84           dumpUser = "root";
  85           dumpPassword = config.myEnv.databases.mysql.systemUsers.root;
  86         };
  87       };
  88     };
  89     redis = {
  90       enable = true;
  91       base = "/backup2";
  92       hosts = {
  93         eldiron = {
  94           host = "127.0.0.1";
  95           port = "16379";
  96         };
  97       };
  98     };
  99     openldap = {
 100       enable = true;
 101       base = "/backup2";
 102       hosts = {
 103         eldiron = {
 104           url = "ldaps://${config.myEnv.ldap.host}:636";
 105           dn = config.myEnv.ldap.replication_dn;
 106           password = config.myEnv.ldap.replication_pw;
 107           base = config.myEnv.ldap.base;
 108         };
 109       };
 110     };
 111   };
 112
 113   # This value determines the NixOS release with which your system is
 114   # to be compatible, in order to avoid breaking some software such as
 115   # database servers. You should change this only after NixOS release
 116   # notes say you should.
 117   # https://nixos.org/nixos/manual/release-notes.html
 118   system.stateVersion = "19.03"; # Did you read the comment?
 119 }