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baremetal-builders: more 'intelligent' gc

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This commit is contained in:
Yureka 2024-07-26 12:17:04 +02:00
parent bd8aa2eb08
commit 15a684c5d7
1 changed files with 12 additions and 3 deletions
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15
services/baremetal-builder/default.nix
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@ -146,14 +146,23 @@ in
};
systemd.services.hydra-gc = {
wantedBy = [ "multi-user.target" ];
description = "Nix Garbage Collector";
script = "exec ${config.nix.package.out}/bin/nix-store --gc --store /mnt";
script = ''
while : ; do
percent_filled=$(($(stat -f --format="100-(100*%a/%b)" /)))
if [ "$percent_filled" -gt "85" ]; then
${config.nix.package.out}/bin/nix-store --gc --max-freed 100G --store /mnt
else
break
fi
done
'';
serviceConfig.Type = "oneshot";
serviceConfig.User = "builder";
};
systemd.timers.hydra-gc = {
timerConfig.OnStartupSec = "4h";
timerConfig.OnUnitActiveSec = "20h";
timerConfig.OnUnitInactiveSec = "10min";
wantedBy = [ "timers.target" ];
};
systemd.timers.hydra-gc.timerConfig.Persistent = true;