An absolute path to an executable to be run for each process killed. Some environment variables are available, see README and the man page for details.
WARNING: earlyoom is running in a sandbox with ProtectSystem="strict" by default, so filesystem write is also prohibited for the hook. If you want to change these protection rules, override the systemd service via systemd.services.earlyoom.serviceConfig.ProtectSystem.
Declarations
Type
null or pathDefault
nullExample
pkgs.writeShellScript "earlyoom-kill-hook" ''
echo "Process $EARLYOOM_NAME ($EARLYOOM_PID) was killed" >> /path/to/log
''