Squash changes containing private information

[perso/Immae/Config/Nix.git] / systems / backup-2 / base.nix

diff --git a/systems/backup-2/base.nix b/systems/backup-2/base.nix
new file mode 100644 (file)
index 0000000..97a364c
--- /dev/null
+++ b/systems/backup-2/base.nix
@@ -0,0 +1,164 @@
+{ config, pkgs, resources, name, lib, nixpkgs, secrets, ... }:
+{
+  # ssh-keyscan backup-2 | nix-shell -p ssh-to-age --run ssh-to-age
+  secrets.ageKeys = [ "age1kk3nr27qu42j28mcfdag5lhq0zu2pky7gfanvne8l4z2ctevjpgskmw0sr" ];
+  secrets.keys = {
+    "rsync_backup/identity" = {
+      user = "backup";
+      group = "backup";
+      permissions = "0400";
+      text = config.myEnv.rsync_backup.ssh_key.private;
+    };
+    "rsync_backup/identity.pub" = {
+      user = "backup";
+      group = "backup";
+      permissions = "0444";
+      text = config.myEnv.rsync_backup.ssh_key.public;
+    };
+  };
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
+  nixpkgs.config.permittedInsecurePackages = [
+    "python-2.7.18.6" # for nagios-cli
+  ];
+
+  imports =
+    [
+      secrets.nixosModules.users-config-backup-2
+      (nixpkgs + "/nixos/modules/profiles/qemu-guest.nix")
+      ./databases/mariadb_replication.nix
+      ./databases/openldap_replication.nix
+      ./databases/postgresql_replication.nix
+      ./databases/redis_replication.nix
+      ./mail/relay.nix
+      ./monitoring.nix
+    ];
+
+  fileSystems = {
+    "/backup2" = {
+      fsType = "ext4";
+      device = "UUID=b9425333-f567-435d-94d8-b26c22d93426";
+    };
+    "/" = { device = "/dev/sda1"; fsType = "ext4"; };
+  };
+
+  networking = {
+    firewall.enable = true;
+    interfaces."ens3".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));
+    interfaces."ens3".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);
+    defaultGateway6 = { address = "fe80::1"; interface = "ens3"; };
+  };
+
+  boot.loader.grub.device = "nodev";
+
+  security.acme.certs."${name}" = {
+    group = config.services.nginx.group;
+  };
+  services.nginx = {
+    enable = true;
+    recommendedOptimisation = true;
+    recommendedGzipSettings = true;
+    recommendedProxySettings = true;
+  };
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+  services.cron = {
+    mailto = "cron@immae.eu";
+    enable = true;
+  };
+
+  myServices.chatonsProperties.hostings.rsync-backup = {
+    file.datetime = "2022-08-27T16:00:00";
+    hosting = {
+      name = "Rsync backups";
+      description = "Remote initiated rsync backups";
+      website = "backup-2.v.immae.eu";
+      status.level = "OK";
+      status.description = "OK";
+      registration.load = "OPEN";
+      install.type = "PACKAGE";
+    };
+    software = {
+      name = "rsync";
+      website = "https://rsync.samba.org/";
+      license.url = "https://rsync.samba.org/GPL.html";
+      license.name = "GNU General Public License version 3";
+      version = pkgs.rsync.version;
+      source.url = "https://github.com/WayneD/rsync";
+    };
+  };
+
+  services.rsyncBackup = {
+    mountpoint = "/backup2";
+    profiles = config.myEnv.rsync_backup.profiles;
+    ssh_key_public = config.secrets.fullPaths."rsync_backup/identity.pub";
+    ssh_key_private = config.secrets.fullPaths."rsync_backup/identity";
+  };
+
+  myServices.mailRelay.enable = true;
+  myServices.mailBackup.enable = true;
+  myServices.monitoring.enable = true;
+  myServices.databasesReplication = {
+    postgresql = {
+      enable = true;
+      base = "/backup2";
+      mainPackage = pkgs.postgresql;
+      hosts = {
+        eldiron = {
+          slot = "backup_2";
+          connection = "postgresql://backup-2:${config.hostEnv.ldap.password}@eldiron.immae.eu";
+          package = pkgs.postgresql;
+        };
+      };
+    };
+    mariadb = {
+      enable = true;
+      base = "/backup2";
+      hosts = {
+        eldiron = {
+          serverId = 2;
+          # mysql resolves "backup-2" host and checks the ip, but uses /etc/hosts which only contains ip4
+          host = lib.head config.myEnv.servers.eldiron.ips.main.ip4;
+          port = config.myEnv.databases.mysql.port;
+          user = "backup-2";
+          password = config.hostEnv.ldap.password;
+          dumpUser = "root";
+          dumpPassword = config.myEnv.databases.mysql.systemUsers.root;
+        };
+      };
+    };
+    redis = {
+      enable = true;
+      base = "/backup2";
+      hosts = {
+        eldiron = {
+          host = "127.0.0.1";
+          port = "16379";
+        };
+      };
+    };
+    openldap = {
+      enable = true;
+      base = "/backup2";
+      hosts = {
+        eldiron = {
+          url = "ldaps://${config.myEnv.ldap.host}:636";
+          dn = config.myEnv.ldap.replication_dn;
+          password = config.myEnv.ldap.replication_pw;
+          base = config.myEnv.ldap.base;
+        };
+      };
+    };
+  };
+
+  # 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?
+}