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https://github.com/bashclub/proxmox-zfs-postinstall.git
synced 2024-11-07 18:31:58 +01:00
Complete rework, added pve-conf-backup
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parent
b771ed1780
commit
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146
install.sh
146
install.sh
@ -1,18 +1,115 @@
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#!/bin/bash
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###### CONFIG SECTION ######
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# Define basic tools to install
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TOOLS="vim ifupdown2 net-tools dnsutils ethtool git curl unzip screen iftop lshw smartmontools nvme-cli lsscsi sysstat zfs-auto-snapshot htop mc rpl"
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# Define zfs-auto-snapshot retention policy
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SNAP_FREQUENT=8
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SNAP_HOURLY=48
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SNAP_DAILY=31
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SNAP_WEEKLY=8
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SNAP_MONTHLY=3
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# Define target dataset for backup of /etc
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# IMPORTANT NOTE: Don't type in the leading /, this will be set where needed
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PVE_CONF_BACKUP_TARGET=rpool/pveconf
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# Define zfs arcsize in Megabytes (MB)
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ZFS_ARC_MIN=128
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ZFS_ARC_MAX=256
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# Define timer for your backup cronjob (default: every 15 minutes)
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PVE_CONF_BACKUP_CRON_TIMER="*/15 * * * *"
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###### SYSTEM INFO AND INTERACTIVE CONFIGURATION SECTION ######
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#### L1ARC SIZE CONFIGURATION ####
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# get total size of all zpools
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ZPOOL_SIZE_SUM_BYTES=0
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zpool list -o size -Hp | while read size_per_pool; do
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ZPOOL_SIZE_SUM_BYTES=$(($ZPOOL_SIZE_SUM_BYTES + $size_per_pool))
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done
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# get information about available ram
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MEM_TOTAL_BYTES=$(free -tb | tail -1 | cut -d ' ' -f3)
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# get values if defaults are set
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ARC_MAX_DEFAULT_BYTES=$((MEM_TOTAL / 2))
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ARC_MIN_DEFAULT_BYTES=$((MEM_TOTAL / 32))
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# get current settings
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ARC_MIN_SET_BYTES=$(cat /sys/module/zfs/parameters/zfs_arc_min)
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ARC_MAX_SET_BYTES=$(cat /sys/module/zfs/parameters/zfs_arc_max)
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# calculate suggested l1arc sice
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ZFS_ARC_MIN_BYTES=$(($ZPOOL_SIZE_SUM_BYTES / 4096))
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ZFS_ARC_MAX_BYTES=$(($ZPOOL_SIZE_SUM_BYTES / 1024))
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echo -e "######## CONFIGURE ZFS L1ARC SIZE ########\n"
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echo "System Summary:"
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echo -e "\tSystem Memory:\t$(($MEM_TOTAL_BYTES / 1024 / 1024)) MB"
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echo -e "\tZpool size (sum):\t$(($ZPOOL_SIZE_SUM_BYTES / 1024 / 1024)) MB"
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echo -e "Calculated l1arc if set to defaults:"
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if [ $ARC_MIN_DEFAULT_BYTES -lt 33554432 ]; then
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echo -e "\tDefault zfs_arc_min:\t32 MB"
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else
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echo -e "\tDefault zfs_arc_min:\t$(($ARC_MIN_DEFAULT_BYTES / 1024 / 1024)) MB"
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fi
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echo -e "\tDefault zfs_arc_max:\t$(($ARC_MAX_DEFAULT_BYTES / 1024 / 1024)) MB"
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echo -e "Current l1arc configuration:"
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if [ $ARC_MIN_SET_BYTES > 0]; then
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echo -e "\tCurrent zfs_arc_min:\t$(($ARC_MIN_SET_BYTES / 1024 / 1024)) MB"
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else
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echo -e "\tCurrent zfs_arc_min:\t0"
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fi
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if [ $ARC_MAX_SET_BYTES > 0]; then
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echo -e "\tCurrent zfs_arc_max:\t$(($ARC_MAX_SET_BYTES / 1024 / 1024)) MB"
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else
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echo -e "\tCurrent zfs_arc_max:\t0"
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fi
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echo -e "Note: If your current values are 0, the calculated values above will apply."
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echo ""
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echo "The l1arc cache will be set relative to the size (sum) of your zpools by the policy 'zfs_arc_min = 256 MB / 1 TB' and 'zfs_arc_max = 1 GB / 1 TB'"
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echo "zfs_arc_min=\t$(($ZFS_ARC_MIN_BYTES / 1024 / 1024)) MB"
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echo "zfs_arc_max=\t$(($ZFS_ARC_MAX_BYTES / 1024 / 1024)) MB"
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echo ""
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RESULT=not_set
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while [[ "$(echo $RESULT | awk '{print tolower($0)}')" != "y" ]] && [[ "$(echo $RESULT | awk '{print tolower($0)}')" != "n"]]; do
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echo "You can now adjust the l1arc values. Change settings [y/N]?"
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read
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RESULT=${REPLY}
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done
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if [[ "$(echo $RESULT | awk '{print tolower($0)}')" == "y" ]]; then
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echo "Please type in the desired value in MB for 'zfs_arc_min' [$(($ZFS_ARC_MIN_BYTES / 1024 / 1024))]:"
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read
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if [[ ${REPLY} -gt 0 ]]; then
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$ZFS_ARC_MIN_BYTES=$((${REPLY} * 1024 * 1024))
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fi
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echo "Please type in the desired value in MB for 'zfs_arc_max' [$(($ZFS_ARC_MAX_BYTES / 1024 / 1024))]:"
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read
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if [[ ${REPLY} -gt 0 ]]; then
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$ZFS_ARC_MAX_BYTES=$((${REPLY} * 1024 * 1024))
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fi
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fi
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#### ZFS AUTO SNAPSHOT CONFIGURATION ####
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# get information about zfs-auto-snapshot and ask for snapshot retention
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dpkg -l zfs-auto-snapshot
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declare -A auto_snap_keep
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if [ $1 -ne 0 ]; then
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auto_snap_keep["frequent"]=8 ; auto_snap_keep["hourly"]=48 ; auto_snap_keep["daily"]=31 ; auto_snap_keep["weekly"]=8 ; auto_snap_keep["monthly"]=3
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else
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for interval in "${auto_snap_keep[@]}"; do
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if [[ "$interval" == "frequent" ]]; then
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auto_snap_keep["$interval"]=$(cat /etc/cron.d/zfs-auto-snapshot | grep keep | cut -d' ' -f19 | cut -d '=' -f2)
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else
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auto_snap_keep["$interval"]=$(cat /etc/cron.$interval/zfs-auto-snapshot | grep keep | cut -d' ' -f6 | cut -d'=' -f2)
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fi
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done
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fi
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echo -e "######## CONFIGURE ZFS AUTO SNAPSHOT ########\n"
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for interval in "${auto_snap_keep[@]}"; do
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echo "Please set how many $interval snapshots to keep (current: keep=${auto_snap_keep[$interval]})"
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read
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if [ "${auto_snap_keep[$interval]}" != "${REPLY}" ]; then
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auto_snap_keep["$interval"]=${REPLY}
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fi
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done
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###### INSTALLER SECTION ######
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# disable pve-enterprise repo and add pve-no-subscription repo
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mv /etc/apt/sources.list.d/pve-enterprise.list /etc/apt/sources.list.d/pve-enterprise.list.bak
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@ -24,15 +121,19 @@ DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq dist-upgrade
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DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install $TOOLS
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# configure zfs-auto-snapshot
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rpl "keep=4" "keep=$SNAP_FREQUENT" /etc/cron.d/zfs-auto-snapshot
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rpl "keep=24" "keep=$SNAP_HOURLY" /etc/cron.hourly/zfs-auto-snapshot
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rpl "keep=31" "keep=$SNAP_DAILY" /etc/cron.hourly/zfs-auto-snapshot
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rpl "keep=8" "keep=$SNAP_WEEKLY" /etc/cron.weekly/zfs-auto-snapshot
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rpl "keep=8" "keep=$SNAP_MONTHLY" /etc/cron.monthly/zfs-auto-snapshot
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# set zfs_arc_limits
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ZFS_ARC_MIN_BYTES=$(($ZFS_ARC_MIN*1024*1024))
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ZFS_ARC_MAX_BYTES=$(($ZFS_ARC_MAX*1024*1024))
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for interval in "${auto_snap_keep[@]}"; do
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if [[ "$interval" == "frequent" ]]; then
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CURRENT=$(cat /etc/cron.d/zfs-auto-snapshot | grep keep | cut -d' ' -f19 | cut -d '=' -f2)
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if [[ "${auto_snap_keep[$interval]}" != "$CURRENT" ]]; then
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rpl "keep=$CURRENT" "keep=${auto_snap_keep[$interval]}" /etc/cron.d/zfs-auto-snapshot
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fi
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else
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CURRENT=$(cat /etc/cron.$interval/zfs-auto-snapshot | grep keep | cut -d' ' -f6 | cut -d'=' -f2)
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if [[ "${auto_snap_keep[$interval]}" != "$CURRENT"]]; then
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rpl "keep=$CURRENT" "keep=${auto_snap_keep[$interval]}" /etc/cron.$interval/zfs-auto-snapshot
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fi
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fi
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done
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echo $ZFS_ARC_MIN_BYTES > /sys/module/zfs/parameters/zfs_arc_min
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echo $ZFS_ARC_MAX_BYTES > /sys/module/zfs/parameters/zfs_arc_max
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@ -42,3 +143,12 @@ options zfs zfs_arc_min=$ZFS_ARC_MIN_BYTES
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options zfs zfs_arc_min=$ZFS_ARC_MAX_BYTES
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EOF
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update-initramfs -u -k all
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# create backup jobs of /etc
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zfs list $PVE_CONF_BACKUP_TARGET
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if [ $? -ne 0 ]
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zfs create $PVE_CONF_BACKUP_TARGET
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fi
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echo "$PVE_CONF_BACKUP_CRON_TIMER root rsync -rtvupo /etc /$PVE_CONF_BACKUP_TARGET" > /etc/cron.d/pve-conf-backup
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