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add borg lock mechanism

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Yan Lin 2025-10-22 09:54:03 +02:00
parent 5936f7d0a7
commit 8d74aeac0b
1 changed files with 10 additions and 1 deletions
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9
modules/borg-client.nix
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@ -162,11 +162,20 @@ in
# Add borg and required tools to the service's PATH
path = [ pkgs.borgbackup pkgs.openssh pkgs.curl ];
# Prevent concurrent backup runs
unitConfig = {
ConditionPathExists = "!/var/run/borg-backup.lock";
};
serviceConfig = {
Type = "oneshot";
User = "root"; # Need root to access all backup paths
Group = "root";
# Create lock file on start, remove on stop
ExecStartPre = "${pkgs.coreutils}/bin/touch /var/run/borg-backup.lock";
ExecStopPost = "${pkgs.coreutils}/bin/rm -f /var/run/borg-backup.lock";
# Security settings
PrivateTmp = true;
ProtectSystem = "strict";