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author | Gregor Kleen <gkleen@yggdrasil.li> | 2022-02-19 15:51:23 +0100 |
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committer | Gregor Kleen <gkleen@yggdrasil.li> | 2022-02-19 15:51:23 +0100 |
commit | 9c37ce946826258711e15cd55ee221fa8fe02256 (patch) | |
tree | ce5fe1ba2c6b7bc2eabcb4bae04a76e05bbb39b2 /hosts/surtr/zfs.nix | |
parent | 4fcf328753b43b7d473ddd43a93acbf5bf64099b (diff) | |
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zfssnap: ...
Diffstat (limited to 'hosts/surtr/zfs.nix')
-rw-r--r-- | hosts/surtr/zfs.nix | 59 |
1 files changed, 2 insertions, 57 deletions
diff --git a/hosts/surtr/zfs.nix b/hosts/surtr/zfs.nix index 3e42ef3e..3a69fd96 100644 --- a/hosts/surtr/zfs.nix +++ b/hosts/surtr/zfs.nix | |||
@@ -1,32 +1,5 @@ | |||
1 | { pkgs, config, ... }: | 1 | { pkgs, config, ... }: |
2 | let | 2 | { |
3 | snapshotNames = ["frequent" "hourly" "daily" "monthly" "yearly"]; | ||
4 | snapshotCount = { | ||
5 | frequent = 24; | ||
6 | hourly = 24; | ||
7 | daily = 30; | ||
8 | monthly = 12; | ||
9 | yearly = 5; | ||
10 | }; | ||
11 | snapshotTimerConfig = { | ||
12 | frequent = { OnCalendar = "*:0/5 UTC"; Persistent = true; }; | ||
13 | hourly = { OnCalendar = "hourly UTC"; Persistent = true; }; | ||
14 | daily = { OnCalendar = "daily UTC"; Persistent = true; }; | ||
15 | monthly = { OnCalendar = "monthly UTC"; Persistent = true; }; | ||
16 | yearly = { OnCalendar = "yearly UTC"; Persistent = true; }; | ||
17 | }; | ||
18 | snapshotDescr = { | ||
19 | frequent = "few minutes"; | ||
20 | hourly = "hour"; | ||
21 | daily = "day"; | ||
22 | monthly = "month"; | ||
23 | yearly = "year"; | ||
24 | }; | ||
25 | |||
26 | zfs = config.boot.zfs.package; | ||
27 | |||
28 | autosnapPackage = pkgs.zfstools.override { inherit zfs; }; | ||
29 | in { | ||
30 | config = { | 3 | config = { |
31 | fileSystems = { | 4 | fileSystems = { |
32 | "/nix" = | 5 | "/nix" = |
@@ -69,35 +42,7 @@ in { | |||
69 | }; | 42 | }; |
70 | }; | 43 | }; |
71 | 44 | ||
72 | systemd.services = | 45 | services.zfssnap.enable = true; |
73 | let mkSnapService = snapName: { | ||
74 | name = "zfs-snapshot-${snapName}"; | ||
75 | value = { | ||
76 | description = "ZFS auto-snapshot every ${snapshotDescr.${snapName}}"; | ||
77 | after = [ "zfs-import.target" ]; | ||
78 | serviceConfig = { | ||
79 | Type = "oneshot"; | ||
80 | ExecStart = "${autosnapPackage}/bin/zfs-auto-snapshot -k -p -u ${snapName} ${toString snapshotCount.${snapName}}"; | ||
81 | }; | ||
82 | restartIfChanged = false; | ||
83 | |||
84 | preStart = '' | ||
85 | ${zfs}/bin/zfs set com.sun:auto-snapshot=true surtr/safe | ||
86 | ''; | ||
87 | }; | ||
88 | }; | ||
89 | in builtins.listToAttrs (map mkSnapService snapshotNames); | ||
90 | |||
91 | systemd.timers = | ||
92 | let mkSnapTimer = snapName: { | ||
93 | name = "zfs-snapshot-${snapName}"; | ||
94 | value = { | ||
95 | wantedBy = [ "timers.target" ]; | ||
96 | timerConfig = snapshotTimerConfig.${snapName}; | ||
97 | }; | ||
98 | }; | ||
99 | in builtins.listToAttrs (map mkSnapTimer snapshotNames); | ||
100 | |||
101 | services.zfs.trim.enable = false; | 46 | services.zfs.trim.enable = false; |
102 | services.zfs.autoScrub = { | 47 | services.zfs.autoScrub = { |
103 | enable = true; | 48 | enable = true; |