hydra-module.nix: Remove log compression which is a local policy

Dependencies

• [2] T4DBPQOF hydra-module: Run hydra-init during hydra-init.service
• [3] UYOMSOGJ hydra-module/compressLogs: Avoid creating /root/r.
• [4] BBF7ZJWH hydra-module.nix: Use startAt
• [5] 3FTM52B2 hydra-module: Always GC to have at least 100 GiB available.
• [6] KMPLMG7T hydra-module.nix: Cleanup
• [7] ZYEFL36Q Ported/merged properties from the TUD configuration's hydra-module
• [*] D3MDJONY

Change contents

• edit in hydra-module.nix at line 278
  [4.1286]→[4.1286:1346](∅→∅),[4.1346]→[3.0:181](∅→∅),[3.181]→[4.1498:1511](∅→∅),[4.1498]→[4.1498:1511](∅→∅)
  −

  − compressLogs = pkgs.writeScript "compress-logs" ''

  − #! ${pkgs.stdenv.shell} -e

  − find /nix/var/log/nix/drvs \

  − -type f -a ! -newermt 'last month' \

  − -name '*.drv' -exec bzip2 -v {} +

  − '';
• edit in hydra-module.nix at line 280
  [2.384]→[2.384:461](∅→∅)
  − "15 5 * * * root ${compressLogs} &> ${baseDir}/data/compress.log"