Logrotate cgroups

Logrotate

логротейт с ограничением по дисковому вводу-выводу

#!/bin/bash

# Clean non existent log file entries from status file
cd /var/lib/logrotate
test -e status || touch status
head -1 status > status.clean
sed 's/"//g' status | while read logfile date
do
    [ -e "$logfile" ] && echo "\"$logfile\" $date"
done >> status.clean
mv status.clean status

test -x /usr/sbin/logrotate || exit 0

GROUP_NAME="logrotate"
DISK_NAME="/dev/xvda"
DISK_SPEED_LIMIT_READ="419430400" #40 Mbites per second (in fact speed is limited by IOPS)
DISK_SPEED_LIMIT_WRITE=${DISK_SPEED_LIMIT_READ}

IOPS_LIMIT_READ=40
IOPS_LIMIT_WRITE=40
# Create CGroup

/usr/bin/cgcreate \
    -t root:root \
    -g blkio:/${GROUP_NAME}

for DISK_NAME in $(/sbin/fdisk -l | grep 'Disk /dev/xvd' | awk '{ print $2 }' | sed 's/://g');
do
    read -r MAJOR MINOR <<<$(file ${DISK_NAME} | awk -F '(' '{ print $2 }' | tr '/)' ' ')

    /usr/bin/cgset -r blkio.throttle.read_iops_device="${MAJOR}:${MINOR}   ${IOPS_LIMIT_READ}"  ${GROUP_NAME}
    /usr/bin/cgset -r blkio.throttle.write_iops_device="${MAJOR}:${MINOR}  ${IOPS_LIMIT_WRITE}" ${GROUP_NAME}

    /usr/bin/cgset -r blkio.throttle.write_bps_device="${MAJOR}:${MINOR} ${DISK_SPEED_LIMIT_READ}"  ${GROUP_NAME}
    /usr/bin/cgset -r blkio.throttle.read_bps_device="${MAJOR}:${MINOR}  ${DISK_SPEED_LIMIT_WRITE}" ${GROUP_NAME}
done

/usr/bin/cgexec -g blkio:/${GROUP_NAME} \
    /usr/sbin/logrotate -v /etc/logrotate.conf  >/var/log/logrotate.log 2>/var/log/logrotate.err