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feat(borg): support specifying different hosts for repos
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matt1432 2024-09-13 01:58:00 -04:00
parent 65061bac48
commit 27e5b1671d
2 changed files with 20 additions and 10 deletions
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3
nixosModules/borgbackup/default.nix
View file

@ -5,6 +5,7 @@
existingRepos = [
{
name = "docker";
host = "nos";
authorizedKeys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPijoxuSwH9IrS4poewzHHwe64UoX4QY7Qix5VhEdqKR root@servivi"
];
@ -12,6 +13,7 @@
{
name = "mc";
host = "nos";
authorizedKeys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPijoxuSwH9IrS4poewzHHwe64UoX4QY7Qix5VhEdqKR root@servivi"
];
@ -19,6 +21,7 @@
{
name = "seven-days";
host = "nos";
authorizedKeys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPijoxuSwH9IrS4poewzHHwe64UoX4QY7Qix5VhEdqKR root@servivi"
];

27
nixosModules/borgbackup/module.nix
View file

@ -4,8 +4,8 @@
pkgs,
...
}: let
inherit (lib) all any attrValues length mapAttrs mkIf mkOption types;
inherit (builtins) listToAttrs removeAttrs;
inherit (lib) all any attrValues findSingle length mapAttrs mkIf mkOption types;
inherit (builtins) filter hasAttr listToAttrs removeAttrs;
inherit (config.sops) secrets;
inherit (config.vars) hostName;
@ -182,6 +182,9 @@ in {
name = mkOption {
type = types.str;
};
host = mkOption {
type = types.str;
};
authorizedKeys = mkOption {
type = types.listOf types.str;
default = [];
@ -206,20 +209,24 @@ in {
];
services.borgbackup = let
backupDir = "/data/borgbackups";
backupDir = {
nos = "/data/borgbackups";
servivi = "/home/backups";
};
in {
repos =
mkIf (hostName == "nos" && length cfg.existingRepos > 0)
mkIf (length cfg.existingRepos > 0)
(listToAttrs (map (r: {
inherit (r) name;
value = {
authorizedKeysAppendOnly = r.authorizedKeys;
path = "${backupDir}/${r.name}";
path = "${backupDir.${hostName}}/${r.name}";
};
})
cfg.existingRepos));
(filter (x: x.host == hostName) cfg.existingRepos)));
jobs = mapAttrs (n: v: let
existingRepo = findSingle (x: x.name == v.repo) null null cfg.existingRepos;
otherAttrs = removeAttrs v [
"environment"
"paths"
@ -233,7 +240,7 @@ in {
{
environment =
v.environment
// (mkIf (hostName != "nos") {
// (mkIf (hasAttr "borg-ssh" secrets) {
BORG_RSH = "ssh -o 'StrictHostKeyChecking=no' -i ${secrets.borg-ssh.path}";
});
@ -256,9 +263,9 @@ in {
'';
repo =
if (hostName != "nos")
then "ssh://borg@nos${backupDir}/${v.repo}"
else "${backupDir}/${v.repo}";
if (hostName != existingRepo.host)
then "ssh://borg@${existingRepo.host}${backupDir.${existingRepo.host}}/${v.repo}"
else "${backupDir.${existingRepo.host}}/${v.repo}";
}
// otherAttrs)
cfg.configs;