Christian Busch
2cc6bad069
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42 lines
1.1 KiB
Bash
42 lines
1.1 KiB
Bash
#!/bin/sh
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set -eu
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SCHEDULE="${SCHEDULE:-* * * * *}"
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CRON_LOG_LEVEL="${CRON_LOG_LEVEL:-2}"
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PUID="${PUID:-1000}"
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PGID="${PGID:-1000}"
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CRON_FILE="/etc/crontabs/root"
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# Create or update group with specified PGID
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if grep -q "^nsupdate:" /etc/group 2>/dev/null; then
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delgroup nsupdate 2>/dev/null || true
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fi
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addgroup -g "${PGID}" nsupdate 2>/dev/null || true
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# Create or update user with specified PUID
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if grep -q "^nsupdate:" /etc/passwd 2>/dev/null; then
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deluser nsupdate 2>/dev/null || true
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fi
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adduser -u "${PUID}" -G nsupdate -s /sbin/nologin -D nsupdate 2>/dev/null || true
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# Set ownership of volumes
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chown -R "${PUID}:${PGID}" /config /log
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# Ensure crontabs directory exists
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mkdir -p "$(dirname "${CRON_FILE}")"
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# Write cron job to run as the specified user (by UID:GID)
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printf '%s su -s /bin/sh %s:%s -c /usr/local/bin/nsupdate.sh\n' "${SCHEDULE}" "${PUID}" "${PGID}" > "${CRON_FILE}"
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chmod 600 "${CRON_FILE}"
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if [ "$#" -gt 0 ]; then
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if [ "$1" = "crond" ]; then
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shift
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exec crond -l "${CRON_LOG_LEVEL}" "$@"
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fi
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exec "$@"
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fi
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exec crond -l "${CRON_LOG_LEVEL}" -f |