LXC/Logrotate: Difference between revisions

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<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash" highlight="18-23">
lxc restore  logrotate faketime:0.9.10
lxc restore  logrotate faketime:0.9.10
cat <<'EXE'| lxc exec logrotate -- bash
cat <<'EXE'| lxc exec logrotate -- bash
Line 127: Line 127:
     copytruncate
     copytruncate
     postrotate
     postrotate
         LOGDIR="/var/log/myapp"
         LOGDIR='/var/log/academia/'
         DATE=$(date +'%Y/%Y-%m')
         DATE=$(date +'%Y/%Y-%m')
         mkdir -p "$LOGDIR/$DATE"
         mkdir -p "${LOGDIR}/${DATE}"
         mv "$LOGDIR/myapp.log-"* "$LOGDIR/$DATE/" 2>/dev/null || true
         mv "${LOGDIR}/myapp.log-"* "${LOGDIR}/${DATE}/" 2>/dev/null || true
     endscript
     endscript
}
}

Revision as of 04:02, 9 June 2025

LXC » Logrotate » Alpine

lxc image ls images:alpine/3.21
lxc rm -f    logrotate 2>/dev/null
lxc launch   images:alpine/3.21 logrotate

lxc delete   logrotate/alpine:3.21 2>/dev/null
lxc snapshot logrotate alpine:3.21
lxc export   logrotate logrotate_alpine-20250523.tar.gz --optimized-storage

lxc rm -f    logrotate 2>/dev/null
lxc import   logrotate logrotate_alpine-20250523.tar.gz logrotate
lxc start    logrotate

lxc restore  logrotate alpine:3.21
lxc info     logrotate

LXC » Logrotate » Ubuntu

lxc image ls ubuntu:24.04
lxc rm -f    logrotate 2>/dev/null
lxc launch   ubuntu:24.04 logrotate

lxc delete   logrotate/ubuntu:24.04 2>/dev/null
lxc snapshot logrotate ubuntu:24.04
lxc export   logrotate logrotate_ubuntu-20250604.tar.gz --optimized-storage

lxc rm -f    logrotate 2>/dev/null
lxc import   logrotate_ubuntu-20250604.tar.gz logrotate
lxc start    logrotate

lxc restore  logrotate ubuntu:24.04
lxc info     logrotate

cat <<'EXE'| lxc exec logrotate -- bash
echo;apt-get update;echo
apt-get install -y logrotate faketime;echo;apt-get clean
EXE

lxc delete   logrotate/faketime:0.9.10 2>/dev/null
lxc snapshot logrotate faketime:0.9.10
lxc export   logrotate logrotate_faketime-20250604.tar.gz --optimized-storage

lxc rm -f    logrotate 2>/dev/null
lxc import   logrotate_faketime-20250604.tar.gz logrotate
lxc start    logrotate

lxc restore  logrotate faketime:0.9.10
lxc info     logrotate

LXC » Logrotate » Ubuntu » Config

lxc restore  logrotate faketime:0.9.10
cat <<'EXE'| lxc exec logrotate -- bash
mkdir -p /var/log/academia
chown root:root /var/log/academia
chmod 755 /var/log/academia

cat <<'CFG'| tee /etc/logrotate.d/academia >/dev/null
/var/log/academia/academia.log {
    daily
    dateext
    dateformat -%Y-%m-%d
    rotate 90
    missingok
    notifempty
    compress
    delaycompress
    copytruncate
}
CFG
EXE
lxc restore  logrotate faketime:0.9.10
cat <<'EXE'| lxc exec logrotate -- bash
mkdir -p /var/log/academia
chown root:root /var/log/academia
chmod 755 /var/log/academia

cat <<'CFG'| tee /etc/logrotate.d/academia >/dev/null
/var/log/academia/academia.log {
    daily
    dateext
    dateformat -%Y-%m-%d
    rotate 90
    missingok
    notifempty
    compress

    copytruncate
}
CFG
EXE

lxc restore  logrotate faketime:0.9.10
cat <<'EXE'| lxc exec logrotate -- bash
mkdir -p /var/log/academia
chown root:root /var/log/academia
chmod 755 /var/log/academia

cat <<'CFG'| tee /etc/logrotate.d/academia >/dev/null
/var/log/academia/academia.log {
    daily
    dateext
    dateformat -%Y-%m-%d
    rotate 90
    missingok
    notifempty
    compress

    copytruncate
    postrotate
        LOGDIR='/var/log/academia/'
        DATE=$(date +'%Y/%Y-%m')
        mkdir -p "${LOGDIR}/${DATE}"
        mv "${LOGDIR}/myapp.log-"* "${LOGDIR}/${DATE}/" 2>/dev/null || true
    endscript
}
CFG
EXE

LXC » Logrotate » Ubuntu » Rotate

cat <<'EXE'| lxc exec logrotate -- bash
for DAYS_AGO in {0..90};do
cat << LOG | tee -a /var/log/academia/academia.log >/dev/null
$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z') academia user: admin signed up
$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z') academia user: admin, page: /home
$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z') academia user: admin, page: /setting
$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z') academia user: admin, page: /sales/report
$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z') academia user: admin, page: /payment/maybank2u
LOG

if [ "${DAYS_AGO}" != "0" ];then
  faketime "$(date -d "${DAYS_AGO} days ago" +%Y-%m-%d)" logrotate -f /etc/logrotate.d/academia
fi
done

ls -ahl /var/log/academia/
EXE

Playground

INET_PATH='.[].state.network.[].addresses[]|select(.family=="inet" and .scope=="global").address'
INET_ADDR=$(lxc list name=logrotate -f=yaml|yq  -r "${INET_PATH}")
apk cache clean
rm -vrf /var/cache/apk/*

echo "$(date +'D%Y%m%d-T%H%M')-Z$(date +'%z'|tr '+-' 'PM')"
echo "$(date --utc +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=BDT-6 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=MYT-8 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=GMT-8 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=GMT-6 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"

echo "$(TZ=UTC-8 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=UTC-6 date +'%Y-%m-%dT%H:%M:%S.%6N%:z')"
echo "$(TZ=UTC-8 date +'%Y-%m-%dT%H:%M:%S.%6N %Z%:z')"
echo "$(TZ=UTC-6 date +'%Y-%m-%dT%H:%M:%S.%6N %Z%:z')"
echo "$(TZ=UTC-8 date +'%Y-%m-%dT%H:%M:%S.%6N %Z%z')"
echo "$(TZ=UTC-6 date +'%Y-%m-%dT%H:%M:%S.%6N %Z%z')"

faketime 'today'      logrotate -f /etc/logrotate.d/academia
faketime 'yesterday'  logrotate -f /etc/logrotate.d/academia
faketime '2025-06-01' logrotate -f /etc/logrotate.d/academia
xzcat /var/log/apt/eipp.log.xz
xzcat /var/log/apt/eipp.log.xz|less
xzcat /var/log/apt/eipp.log.xz|more

References