magento-report.sh

#!/bin/bash
#
# List log items above NOTICE severity of every Magento log.
#
# VERSION       :0.2.1
# DATE          :2017-06-13
# AUTHOR        :Viktor Szépe <viktor@szepe.net>
# LICENSE       :The MIT License (MIT)
# URL           :https://github.com/szepeviktor/debian-server-tools
# BASH-VERSION  :4.2+
# DEPENDS       :apt-get install logtail
# LOCATION      :/usr/local/bin/magento-report.sh

# It is a cron job at every hour 59 minutes.
#
#     59 *	* * *	USER	/usr/local/bin/magento-report.sh /home/USER/website/code/var/log/
#
# Last minute tries to make sure there is a new log file after midnight at 00:59.

# Logrotate config
# /home/USER/website/code/var/log/*.log {
#     su mage mage
#     weekly
#     rotate 15
#     missingok
#     notifempty
#     nocreate
#     nocompress
#     sharedscripts
#     postrotate
#         rm /home/USER/website/code/var/log/*.log.offset
#     endscript
# }

ZEND_LOG_LEVELS="NOTICE|WARN|ERR|CRIT|ALERT|EMERG"
declare -i EXTRA_LINES="3"

set -e

# Log directory
LOG_PATH="$1"
test -d "$LOG_PATH"

# No logs yet
compgen -G "${LOG_PATH}/*.log" >/dev/null || exit 0

LOGS="$(find "$LOG_PATH" -type f -name "*.log")"
while read -r LOG; do
    # Take new lines and look for errors
    /usr/sbin/logtail2 "$LOG" \
        | dd iflag=fullblock bs=1M count=5 2> /dev/null \
        | grep -a -E -A "$EXTRA_LINES" '^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}\+\S+ ('"$ZEND_LOG_LEVELS"') \([0-9]\):' \
        || if [ "$?" != 1 ]; then
            # This is a real error, 1 is "not found"
            exit 102
        fi
done <<<"$LOGS"

exit 0