mirror of
https://github.com/RWejlgaard/pez-infra.git
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Rasmus "Pez" Wejlgaard
9d56a22c30
docker-log-cleanup.sh lived in the repo but nothing deployed it — the script and monthly cron on nuremberg-a were set up by hand and got wiped when the host was reinstalled. Fold both into the docker role so every docker_hosts member gets the script in /usr/local/bin and a monthly cron, and it survives a rebuild.
20 lines
729 B
Bash
Executable file
20 lines
729 B
Bash
Executable file
#!/bin/bash
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# Truncate large Docker container log files.
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#
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# Managed by Ansible (docker role) — deployed to /usr/local/bin/ on all
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# docker_hosts and run monthly via cron. Do not edit on the host.
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#
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# Safety net for containers using the json-file log driver; most containers
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# ship logs via the Loki driver and never write *-json.log, so on a healthy
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# host this is usually a no-op.
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LOG_DIR=/var/lib/docker/containers
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MAX_SIZE_MB=100
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find "$LOG_DIR" -name '*-json.log' | while read -r logfile; do
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size_mb=$(du -m "$logfile" | cut -f1)
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if [ "$size_mb" -gt "$MAX_SIZE_MB" ]; then
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echo "$(date): Truncating $logfile (${size_mb}MB)" >> /var/log/docker-log-cleanup.log
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truncate -s 0 "$logfile"
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fi
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done
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