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Add bind-mount liveness guard to cron container

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DokPloy rm-rf's the host code dir on every redeploy, orphaning the
long-running cron container's ./content and ./.git bind mounts (pinned to
the now-deleted inode). The wiki export then spins forever in fs.mkdir
against the dead directory and never commits.

mount-guard.sh detects a stale mount (directory hard-link count < 2 = a
deleted inode) and re-binds it via docker restart, run every 15 min from
cron and once at the top of export-content-cron.sh as a fast-fail.
This commit is contained in:
Jennie Robinson Faber 2026-05-24 15:28:45 +01:00
parent 9ed1518d83
commit 15a5c49324
3 changed files with 48 additions and 0 deletions
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4
cron/crontab
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@ -4,3 +4,7 @@
# Wiki content export to git — daily at 4 AM UTC
0 4 * * * . /etc/environment.sh; /app/scripts/export-content-cron.sh >> /var/log/wiki-export.log 2>&1
# Bind-mount liveness guard — re-binds ./content + ./.git if a DokPloy redeploy
# orphaned them (every 15 min, offset off :00 to avoid racing the jobs above).
7,22,37,52 * * * * . /etc/environment.sh; /app/scripts/mount-guard.sh >> /var/log/mount-guard.log 2>&1