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{ 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?
}
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