wifibackup

This commit is contained in:
Motiejus Jakštys 2024-06-06 01:57:00 +03:00
parent 1ad5cd63d5
commit 95def71a76
3 changed files with 79 additions and 0 deletions

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@ -111,6 +111,12 @@
group = "users"; group = "users";
}; };
wifibackup = {
enable = true;
toPath = "/home/motiejus/M-Active/wifi";
toUser = config.mj.username;
};
remote-builder.client = let remote-builder.client = let
host = myData.hosts."fra1-a.servers.jakst"; host = myData.hosts."fra1-a.servers.jakst";
in { in {

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@ -15,6 +15,7 @@
./sshguard ./sshguard
./syncthing ./syncthing
./tailscale ./tailscale
./wifibackup
./zfsunlock ./zfsunlock
]; ];
} }

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@ -0,0 +1,72 @@
{
lib,
config,
pkgs,
...
}: let
mergeNmConnections = pkgs.writeShellApplication {
name = "merge-nmconnections";
text = ''
CURRENT1="$1"
CURRENT2="$2"
NEW="$3"
NEW1="$4"
NEW2="$5"
sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT1"
sed -i -E '/^(uuid|interface-name)=/d' "$CURRENT2"
if cmp "$1" "$2"; then
mv "$CURRENT1" "$NEW"
else
mv "$CURRENT1" "$NEW1"
mv "$CURRENT2" "$NEW2"
exit 1
fi
'';
};
in {
options.mj.services.wifibackup = with lib.types; {
enable = lib.mkEnableOption "enable wifi code backups to M-Active";
fromPath = lib.mkOption {
type = path;
default = "/etc/NetworkManager/system-connections";
};
toPath = lib.mkOption {
type = path;
example = "/home/motiejus/M-Active/wifi";
};
toUser = lib.mkOption {
type = str;
example = "motiejus";
};
};
config = with config.mj.services.wifibackup;
lib.mkIf enable {
systemd.timers.wifibackup = {
description = "wifibackup to M-Active";
wantedBy = ["timers.target"];
timerConfig.OnCalendar = "*-*-* 22:00:00 UTC";
};
systemd.services.wifibackup = {
description = "backup ${fromPath} to ${toPath}";
serviceConfig = {
Type = "oneshot";
User = "root";
ExecStart = ''
${pkgs.unison}/bin/unison \
-sshargs "-i /etc/ssh/ssh_host_ed25519_key" \
-batch \
-merge "Name *.nmconnection -> ${mergeNmConnections}/bin/merge-nmconnections CURRENT1 CURRENT2 NEW NEW1 NEW2" \
-backuploc local \
-backup "Name *" \
-backupprefix "" \
-backupsuffix ".backup-$VERSION" \
${fromPath} \
ssh://${toUser}@localhost/${toPath}/
'';
};
};
};
}