db2fc5dea1
- Dockerfile: dcron -> busybox crond (kein setpgid-Fehler im Container) Crontab in /var/spool/cron/crontabs/root - backup.sh: grep-Filter fuer PostgreSQL 17 Security-Tokens (\restrict / \unrestrict) die sich bei jedem Dump aendern
17 lines
603 B
Docker
17 lines
603 B
Docker
FROM alpine:3.21
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# Install PostgreSQL client (busybox crond is included with Alpine)
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RUN apk add --no-cache postgresql-client
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COPY backup.sh /usr/local/bin/backup.sh
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RUN chmod +x /usr/local/bin/backup.sh
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# Crontab: run backup daily at 03:00 UTC
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# busybox crond reads from /var/spool/cron/crontabs/<user>
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RUN mkdir -p /var/spool/cron/crontabs \
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&& echo "0 3 * * * /usr/local/bin/backup.sh >> /var/log/backup.log 2>&1" \
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> /var/spool/cron/crontabs/root \
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&& chmod 600 /var/spool/cron/crontabs/root
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# busybox crond: -f = foreground, -d 8 = log level debug
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CMD ["crond", "-f", "-d", "8"]
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