enricobuehler
3074b30988
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The hourly docker-prune could never reclaim the real disk filler: the act_runner cache server's blob store (cache.dir:"" -> /root/.cache/actcache/cache) lives in the long-running runner container's WRITABLE LAYER, which docker prune can't see. It grew to ~66 GB and filled the 125 GB disk on its own. - New docker-prune.sh holds the logic (inline ExecStart= broke under systemd's own $-expansion, which emptied $SZ/$(...) before sh ran them — silently no-oping the burst guard). The unit now just calls the script. - Caps the actcache: clears the blobs once they exceed ~20 GB (act_runner repopulates; keys are content-hashed, so only stale entries drop). - Burst guard lowered 85%->80% and now also clears the actcache. - Timer hourly -> every 30 min; image/cache `until` 12h -> 6h. Live: cleared 66 GB on home-runner-1 (93% -> 20%), deployed + verified. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
15 lines
496 B
SYSTEMD
15 lines
496 B
SYSTEMD
# Runs docker-prune.service every 30 min. The runner is hammered with build bursts that can refill
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# the disk fast (and the actcache cap needs to react well within an hour), so 30 min beats hourly.
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# Persistent=true catches up after downtime. Install: see the header of docker-prune.service.
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[Unit]
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Description=Run docker-prune every 30 min (CI runner disk hygiene + actcache cap + burst guard)
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[Timer]
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OnCalendar=*:0/30
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RandomizedDelaySec=120
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Persistent=true
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[Install]
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WantedBy=timers.target
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