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
|
(define-module (tw system vin)
#:use-module (gnu)
#:use-module (gnu bootloader grub)
#:use-module (gnu services docker)
#:use-module (gnu services dbus)
#:use-module (gnu services desktop) ; elogind-service-type
#:use-module (gnu system locale)
#:use-module (gnu system nss)
#:use-module (guix gexp)
#:use-module (tw services restic)
#:use-module (tw system))
;; The device's BIOS does not support UEFI, sadly. It also doesn't recognise
;; NVME devices, so we can only use SATA hard disks, not the M.2 SSD.
;; /dev/sda1 is the https://en.wikipedia.org/wiki/BIOS_boot_partition for grub.
(define grub-boot-disk ; must contain a BIOS boot partition
"/dev/disk/by-id/wwn-0x5000cca39dd469de") ; this is /dev/sda, usually
(define guixsd-root-partition ; /dev/sda2, 500 GB
(uuid "86970883-b074-4673-a993-193287432352" 'btrfs))
(define backups-partition ; /dev/sdb1, 1000 GB
(uuid "383ee9c7-b17e-43c9-9c39-447d63e22b94" 'btrfs))
(define-public %vin-system
(operating-system
(host-name "vin.twilken.net")
(timezone "Europe/Paris")
(locale "en_GB.utf8")
(locale-definitions
(list (locale-definition (name "en_GB.utf8") (source "en_GB"))
(locale-definition (name "de_DE.utf8") (source "de_DE"))
(locale-definition (name "fr_FR.utf8") (source "fr_FR"))
(locale-definition (name "en_US.utf8") (source "en_US"))))
;; Allow resolution of '.local' host names with mDNS.
(name-service-switch %mdns-host-lookup-nss)
;; Choose UK English console keyboard layout.
(keyboard-layout %british-keyboard)
;; Packages installed system-wide. Users can also install packages
;; under their own account: use 'guix search KEYWORD' to search
;; for packages and 'guix install PACKAGE' to install a package.
(packages %base-system-packages)
;; Below is the list of system services. To search for available
;; services, run 'guix system search KEYWORD' in a terminal.
(services
(cons*
(service restic-server-service-type
(restic-server-configuration
(repository-path "/var/backups/restic")
(bind-address
(server-wireguard-address host-name 8181))
(append-only? #t) ; run cleanup jobs separately, using plain restic
(private-repos-only? #t) ; require /user/ path prefix
(prometheus? #t)
(prometheus-auth? #f)))
(service restic-cleanup-service-type
(list (restic-cleanup-repository
;; Laptop backups run at "0 */2 * * *".
(schedule #~"0 5 * * *")
(url "/var/backups/restic/timo/laptop")
(password-file "/etc/restic/timo-laptop")
(keep-within "14d")
(keep-weekly 52)
(keep-monthly -1))
;; Phone backups run with a new version of restic, which creates
;; v2 repos by default. Guix' older restic version can't read
;; these, so create the repo on the server before pushing to it.
;; Restic doesn't automatically upgrade the repo version.
;;
;; Phone backups run "hourly" (modulo Android's throttling of
;; the Restic app), but the underlying data changes at most once
;; a day, so use `keep-daily' instead of `keep-within'.
(restic-cleanup-repository
(schedule #~"0 3 * * *")
(url "/var/backups/restic/timo/phone")
(password-file "/etc/restic/timo-phone")
(snapshot-paths '("/storage/FF37-F8E6/SignalBackup"))
;; We only really care about the last signal backup, but guard
;; against accidental deletion by keeping more.
(keep-daily 7))
(restic-cleanup-repository
(schedule #~"0 4 * * *")
(url "/var/backups/restic/timo/phone")
(password-file "/etc/restic/timo-phone")
(snapshot-paths '("/storage/emulated/0/Backups"))
(keep-daily 14)
(keep-monthly -1))
(restic-cleanup-repository
;; OAndBackupX/NeoBackup backups can run until the early-ish
;; morning; cleanup once they're all done and pushed.
(schedule #~"0 9 * * *")
(url "/var/backups/restic/timo/phone")
(password-file "/etc/restic/timo-phone")
(snapshot-paths '("/storage/FF37-F8E6/OAndBackupX"))
(keep-daily 14)
(keep-monthly -1))))
;; For running the Grafana docker container.
(service docker-service-type)
(service dbus-root-service-type) ; required by docker-service-type
(service elogind-service-type) ; required by docker-service-type
(server-base-services host-name)))
;; The list of user accounts ('root' is implicit).
(users %server-base-user-accounts)
;; Use the non-UEFI/legacy BIOS variant of GRUB with the boot header
;; installed on the system/root disk.
(bootloader
(bootloader-configuration
(bootloader grub-bootloader)
(targets (list grub-boot-disk))
(keyboard-layout keyboard-layout)))
;; The list of file systems that get "mounted". The unique
;; file system identifiers there ("UUIDs") can be obtained
;; by running 'blkid' in a terminal.
(file-systems
(cons* (file-system ; this is the smaller (500 GB) disk
(mount-point "/")
(device guixsd-root-partition)
(flags '(no-atime))
(options (alist->file-system-options
'(("compress" . "zstd"))))
(type "btrfs"))
(file-system ; this is the bigger (1000 GB) disk
(mount-point "/var/backups")
(create-mount-point? #t)
(device backups-partition)
(flags '(no-atime))
(options (alist->file-system-options
'(("compress" . "zstd"))))
(type "btrfs"))
%base-file-systems))))
%vin-system
|
