racket-pkg-website/on-ping-service-failure.sh
2018-06-01 19:01:52 +01:00

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#!/bin/bash
#
# I am potentially invoked when ping-service.sh (which see) fails to
# contact the racket-pkg-website service.
#
# Request a dump of running threads:
touch $HOME/racket-pkg-website/signals/.dumpinfo
# Wait a few seconds for the dump to complete:
sleep 10
# Tar up the most recent few hours' worth of logs:
logarchive=$HOME/ping-failure-logs-$(date +%Y%m%d%H%M%S).tar.gz
(
cd $HOME/service/racket-pkg-website/log/main/; \
ls -tr | tail -n 10 | xargs tar -zcf $logarchive \
)
# Restart the service using daemontools:
svc -du $HOME/service/racket-pkg-website
# Finally, complain out loud. We expect to be running in some kind of
# cron-ish context, so the output we produce here will likely find its
# way into an email to a responsible party.
echo "racket-pkg-website on-ping-service-failure.sh invoked. logarchive=$logarchive"