blob: fe62c95613ce31d77005bb163df26d6885dee893 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
{ config, pkgs, lib, flakeInputs, ... }:
with lib;
let
sshConfig = pkgs.writeText "config" ''
Include /etc/ssh/ssh_config
ControlMaster auto
ControlPath /var/lib/borg/.borgssh-master-%r@%n:%p
ControlPersist yes
Host yggdrasil.borgbase
HostName nx69hpl8.repo.borgbase.com
User nx69hpl8
IdentityFile ${config.sops.secrets."append.borgbase".path}
IdentitiesOnly yes
BatchMode yes
ServerAliveInterval 10
ServerAliveCountMax 30
'';
copyService = { repo, repoEscaped }: let
serviceName = "copy-borg@${repoEscaped}";
in nameValuePair serviceName {
serviceConfig = {
Type = "oneshot";
ExecStart = "${copyBorg}/bin/copy ${escapeShellArg repo} yggdrasil.borgbase:repo";
TimeoutStartSec = "8h";
# User = "borg";
# Group = "borg";
# StateDirectory = "borg";
RuntimeDirectory = "copy-borg";
Environment = [
"BORG_RSH=\"${pkgs.openssh}/bin/ssh -F ${sshConfig}\""
"BORG_BASE_DIR=/var/lib/borg"
"BORG_CONFIG_DIR=/var/lib/borg/config"
"BORG_CACHE_DIR=/var/lib/borg/cache"
"BORG_SECURITY_DIR=/var/lib/borg/security"
"BORG_KEYS_DIR=/var/lib/borg/keys"
"BORG_KEY_FILE=${config.sops.secrets."yggdrasil.borgkey".path}"
"BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK=yes"
"BORG_HOSTNAME_IS_UNIQUE=yes"
];
};
};
copyBorg = pkgs.stdenv.mkDerivation (let
packageOverrides = pkgs.callPackage ./pyprctl-packages.nix {};
inpPython = pkgs.python39.override { inherit packageOverrides; };
in rec {
name = "copy";
src = ./copy.py;
phases = ["buildPhase" "checkPhase" "installPhase"];
buildInputs = with pkgs; [makeWrapper];
python = inpPython.withPackages (ps: with ps; [humanize tqdm python-dateutil xdg python-unshare pyprctl halo]);
buildPhase = ''
substitute $src copy \
--subst-var-by python ${escapeShellArg python}
'';
doCheck = true;
checkPhase = ''
${python}/bin/python -m py_compile copy
'';
installPhase = ''
install -m 0755 -D -t $out/bin \
copy
wrapProgram $out/bin/copy \
--prefix PATH : ${makeBinPath (with pkgs; [config.boot.zfs.package util-linux borgbackup])}:${config.security.wrapperDir}
'';
});
borgsnap = flakeInputs.mach-nix.lib.${config.nixpkgs.system}.buildPythonPackage rec {
pname = "borgsnap";
src = ./borgsnap;
version = "0.0.0";
ignoreDataOutdated = true;
requirements = ''
atomicwrites
pyprctl
python-unshare
python-dateutil
'';
postInstall = ''
wrapProgram $out/bin/borgsnap \
--prefix PATH : ${makeBinPath (with pkgs; [util-linux borgbackup])}:${config.security.wrapperDir}
'';
providers.python-unshare = "nixpkgs";
overridesPre = [
(self: super: { python-unshare = super.python-unshare.overrideAttrs (oldAttrs: { name = "python-unshare-0.2.1"; version = "0.2.1"; }); })
];
_.tomli.buildInputs.add = with pkgs."python3Packages"; [ flit-core ];
};
in {
config = {
services.zfssnap.config.exec = {
check = "${borgsnap}/bin/borgsnap -vv --target yggdrasil.borgbase:repo --archive-prefix yggdrasil.vidhar. check --cache-file /run/zfssnap-prune/archives-cache.json";
cmd = "${borgsnap}/bin/borgsnap -vv --target yggdrasil.borgbase:repo --archive-prefix yggdrasil.vidhar. create";
halfweekly = "8";
monthly = "-1";
};
systemd.services = {
"zfssnap-prune" = {
serviceConfig = {
Environment = [
"BORG_RSH=\"${pkgs.openssh}/bin/ssh -F ${sshConfig}\""
"BORG_BASE_DIR=/var/lib/borg"
"BORG_CONFIG_DIR=/var/lib/borg/config"
"BORG_CACHE_DIR=/var/lib/borg/cache"
"BORG_SECURITY_DIR=/var/lib/borg/security"
"BORG_KEYS_DIR=/var/lib/borg/keys"
"BORG_KEY_FILE=${config.sops.secrets."yggdrasil.borgkey".path}"
"BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK=yes"
"BORG_HOSTNAME_IS_UNIQUE=yes"
];
RuntimeDirectory = "zfssnap-prune";
};
};
} // listToAttrs (map copyService [{ repo = "/srv/backup/borg/jotnar"; repoEscaped = "srv-backup-borg-jotnar"; }]);
services.borgbackup.repos.jotnar = {
path = "/srv/backup/borg/jotnar";
authorizedKeysAppendOnly = let
dir = ./jotnar;
toAuthKey = fname: ftype: if ftype != "regular" || !(hasSuffix ".pub" fname) then null else builtins.readFile (dir + "/${fname}");
in filter (v: v != null) (mapAttrsToList toAuthKey (builtins.readDir dir));
};
boot.postBootCommands = mkBefore ''
${pkgs.findutils}/bin/find /srv/backup/borg -type d -empty -delete
'';
users.users.borg.extraGroups = ["ssh"];
services.openssh.extraConfig = ''
Match User borg
ClientAliveInterval 10
ClientAliveCountMax 30
Match All
'';
sops.secrets."append.borgbase" = {
format = "binary";
sopsFile = ./append.borgbase;
owner = "borg";
group = "borg";
mode = "0400";
};
sops.secrets."yggdrasil.borgkey" = {
format = "binary";
sopsFile = ./yggdrasil.borgkey;
owner = "borg";
group = "borg";
mode = "0400";
};
systemd.timers."copy-borg@srv-backup-borg-jotnar" = {
wantedBy = ["multi-user.target"];
timerConfig = {
OnCalendar = "*-*-* 00/4:00:00 Europe/Berlin";
};
};
};
}
|
