diff options
author | Gregor Kleen <gkleen@yggdrasil.li> | 2018-04-09 12:36:53 +0200 |
---|---|---|
committer | Gregor Kleen <gkleen@yggdrasil.li> | 2018-04-09 12:36:53 +0200 |
commit | b543388729dd73389777cfd08d436da0f32815fd (patch) | |
tree | 513a1690ca36d0caa11d72f018e0e0f07359b278 /custom | |
parent | d72b85f52945bc057a3d598f51eddb55837fd465 (diff) | |
download | nixos-b543388729dd73389777cfd08d436da0f32815fd.tar nixos-b543388729dd73389777cfd08d436da0f32815fd.tar.gz nixos-b543388729dd73389777cfd08d436da0f32815fd.tar.bz2 nixos-b543388729dd73389777cfd08d436da0f32815fd.tar.xz nixos-b543388729dd73389777cfd08d436da0f32815fd.zip |
…
Diffstat (limited to 'custom')
-rw-r--r-- | custom/lvm-snapshots.nix | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/custom/lvm-snapshots.nix b/custom/lvm-snapshots.nix index 74b33570..ef4a97c4 100644 --- a/custom/lvm-snapshots.nix +++ b/custom/lvm-snapshots.nix | |||
@@ -6,6 +6,7 @@ let | |||
6 | cfg = config.services.lvm-snapshots; | 6 | cfg = config.services.lvm-snapshots; |
7 | 7 | ||
8 | snapshotMount = name: "${cfg.mountPoint}/${if isNull cfg.snapshots."${name}".mountName then name else cfg.snapshots."${name}".mountName}"; | 8 | snapshotMount = name: "${cfg.mountPoint}/${if isNull cfg.snapshots."${name}".mountName then name else cfg.snapshots."${name}".mountName}"; |
9 | snapshotName = name: "${name}-snapshot"; | ||
9 | 10 | ||
10 | snapshotConfig = { | 11 | snapshotConfig = { |
11 | options = { | 12 | options = { |
@@ -58,11 +59,13 @@ in { | |||
58 | 59 | ||
59 | config = mkIf (cfg != {}) { | 60 | config = mkIf (cfg != {}) { |
60 | 61 | ||
62 | boot.kernelModules = [ "dm_snapshot" ]; | ||
63 | |||
61 | system.activationScripts = mapAttrs' (name: scfg: nameValuePair ("lvm-mountpoint" + name) '' | 64 | system.activationScripts = mapAttrs' (name: scfg: nameValuePair ("lvm-mountpoint" + name) '' |
62 | mkdir -p ${snapshotMount name} | 65 | mkdir -p ${snapshotMount name} |
63 | '') cfg.snapshots; | 66 | '') cfg.snapshots; |
64 | 67 | ||
65 | systemd.services = mapAttrs' (name: scfg: nameValuePair ("lvm-snapshot@" + name) { | 68 | systemd.services = mapAttrs' (name: scfg: nameValuePair ("lvm-snapshot@" + snapshotName name) { |
66 | enable = true; | 69 | enable = true; |
67 | 70 | ||
68 | unitConfig = { | 71 | unitConfig = { |
@@ -71,8 +74,8 @@ in { | |||
71 | 74 | ||
72 | serviceConfig = with pkgs; { | 75 | serviceConfig = with pkgs; { |
73 | Type = "oneshot"; | 76 | Type = "oneshot"; |
74 | ExecStart = "${devicemapper}/bin/lvcreate -s ${scfg.cowSize} --name ${name} ${scfg.VG}/${scfg.LV}"; | 77 | ExecStart = "${devicemapper}/bin/lvcreate -s ${scfg.cowSize} --name ${snapshotName name} ${scfg.VG}/${scfg.LV}"; |
75 | ExecStop = "${devicemapper}/bin/lvremove ${scfg.VG}/${name}"; | 78 | ExecStop = "${devicemapper}/bin/lvremove ${scfg.VG}/${snapshotName name}"; |
76 | RemainAfterExit = true; | 79 | RemainAfterExit = true; |
77 | }; | 80 | }; |
78 | }) cfg.snapshots; | 81 | }) cfg.snapshots; |
@@ -85,13 +88,13 @@ in { | |||
85 | StopWhenUnneeded = !scfg.persist; | 88 | StopWhenUnneeded = !scfg.persist; |
86 | }; | 89 | }; |
87 | 90 | ||
88 | bindsTo = [ ("lvm-snapshot@" + name + ".service") ]; | 91 | bindsTo = [ ("lvm-snapshot@" + snapshotName name + ".service") ]; |
89 | after = [ ("lvm-snapshot@" + name + ".service") ]; | 92 | after = [ ("lvm-snapshot@" + snapshotName name + ".service") ]; |
90 | 93 | ||
91 | options = mkIf scfg.readOnly "ro"; | 94 | options = mkIf scfg.readOnly "ro"; |
92 | 95 | ||
93 | where = snapshotMount name; | 96 | where = snapshotMount name; |
94 | what = "/dev/" + scfg.VG + "/" + name; | 97 | what = "/dev/" + scfg.VG + "/" + snapshotName name; |
95 | }) cfg.snapshots; | 98 | }) cfg.snapshots; |
96 | }; | 99 | }; |
97 | } | 100 | } |