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feat(base): cap systemd-coredump retention at 7d fleet-wide #56

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hermes wants to merge 1 commit from hermes/coredump-retention into main AGit
pull from: hermes/coredump-retention
merge into: harald:main
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hermes commented 2026-10-08 09:49:08 +02:00
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Upstream's tmpfiles entry keeps cores for 2w, which is too generous for
a crash loop: the journal-upload watchdog regression (PR#48) left 780
files / 166 MiB on hermes within a day, and amd, mx and halo a few
hundred each. Set the age to 7d via systemd.tmpfiles.rules in the base
module (every NixOS host; verified via nix eval on all nine). The rule
lands in 00-nixos.conf, whose entry wins over systemd.conf's 2w
per tmpfiles.d filename precedence (verified against live tmpfiles:
threshold now-7d, upstream line reported as duplicate and ignored).

Replaces manual cleanup on hosts the agent cannot reach (kanban
t_e80e60fa comment).

Upstream's tmpfiles entry keeps cores for 2w, which is too generous for a crash loop: the journal-upload watchdog regression (PR#48) left 780 files / 166 MiB on hermes within a day, and amd, mx and halo a few hundred each. Set the age to 7d via systemd.tmpfiles.rules in the base module (every NixOS host; verified via nix eval on all nine). The rule lands in 00-nixos.conf, whose entry wins over systemd.conf's 2w per tmpfiles.d filename precedence (verified against live tmpfiles: threshold now-7d, upstream line reported as duplicate and ignored). Replaces manual cleanup on hosts the agent cannot reach (kanban t_e80e60fa comment).
feat(base): cap systemd-coredump retention at 7d fleet-wide
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74957fbd15 
Upstream's tmpfiles entry keeps cores for 2w, which is too generous for
a crash loop: the journal-upload watchdog regression (PR#48) left 780
files / 166 MiB on hermes within a day, and amd, mx and halo a few
hundred each. Set the age to 7d via systemd.tmpfiles.rules in the base
module (every NixOS host; verified via nix eval on all nine). The rule
lands in 00-nixos.conf, whose entry wins over systemd.conf's 2w
per tmpfiles.d filename precedence (verified against live tmpfiles:
threshold now-7d, upstream line reported as duplicate and ignored).

Replaces manual cleanup on hosts the agent cannot reach (kanban
t_e80e60fa comment).
All checks were successful
nix flake check / flake-check (pull_request) Successful in 4m23s
Details
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git fetch -u origin +refs/pull/56/head:hermes/coredump-retention
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