mirror of
https://github.com/bashclub/proxmox-zfs-postinstall.git
synced 2025-11-04 00:32:26 +01:00
Thorsten Spille
GitHub
1
.gitignore
vendored
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1
.gitignore
vendored
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ZPOOL_SIZE_SUM_BYTES
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@@ -5,6 +5,7 @@ Following settings are made:
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- Disable `pve-enterprise` repo
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- Add `pve-no-subscription` repo
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- Upgrade system to latest version
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- Install basic 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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- Configure snapshot retention for `zfs-auto-snapshot`
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- Set limits for level 1 arc (`zfs_arc_min` and `zfs_arc_max`)
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- Install basic tools: `sudo 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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- Configure snapshot retention for `zfs-auto-snapshot` interactively
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- Calculates limits for level 1 arc (`zfs_arc_min` and `zfs_arc_max`) based on all configured zpools
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- Configure backup of `/etc` folder to new zfs dataset on `rpool/pveconf`
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44
install.sh
44
install.sh
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#!/bin/bash
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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 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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# 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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echo "deb http://download.proxmox.com/debian/pve buster pve-no-subscription" > /etc/apt/sources.list.d/pve-no-subscription.list
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apt update
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# update system and install basic tools
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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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echo $ZFS_ARC_MIN_BYTES > /sys/module/zfs/parameters/zfs_arc_min
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echo $ZFS_ARC_MAX_BYTES > /sys/module/zfs/parameters/zfs_arc_max
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cat << EOF > /etc/modprobe.d/zfs.conf
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options zfs zfs_arc_min=$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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201
proxmox-zfs-postinstall.sh
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201
proxmox-zfs-postinstall.sh
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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="sudo vim ifupdown2 net-tools dnsutils ethtool git curl unzip screen iftop lshw smartmontools nvme-cli lsscsi sysstat zfs-auto-snapshot htop mc rpl lsb-release"
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#### PVE CONF BACKUP CONFIGURATION ####
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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 timer for your backup cronjob (default: every 15 minutes fron 3 through 59)
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PVE_CONF_BACKUP_CRON_TIMER="3/15 * * * *"
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###### SYSTEM INFO AND INTERACTIVE CONFIGURATION SECTION ######
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ROUND_FACTOR=512
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roundup(){
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echo $(((($1 + $ROUND_FACTOR) / $ROUND_FACTOR) * $ROUND_FACTOR))
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}
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roundoff(){
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echo $((($1 / $ROUND_FACTOR) * $ROUND_FACTOR))
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}
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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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for line in $(zpool list -o size -Hp); do ZPOOL_SIZE_SUM_BYTES=$(($ZPOOL_SIZE_SUM_BYTES+$line)); done
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# get information about available ram
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MEM_TOTAL_BYTES=$(($(awk '/MemTotal/ {print $2}' /proc/meminfo) * 1024))
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# get values if defaults are set
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ARC_MAX_DEFAULT_BYTES=$(($MEM_TOTAL_BYTES / 2))
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ARC_MIN_DEFAULT_BYTES=$(($MEM_TOTAL_BYTES / 32))
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# get current settings
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ARC_MIN_CUR_BYTES=$(cat /sys/module/zfs/parameters/zfs_arc_min)
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ARC_MAX_CUR_BYTES=$(cat /sys/module/zfs/parameters/zfs_arc_max)
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# calculate suggested l1arc sice
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ZFS_ARC_MIN_MEGABYTES=$(roundup $(($ZPOOL_SIZE_SUM_BYTES / 2048 / 1024 / 1024)))
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ZFS_ARC_MAX_MEGABYTES=$(roundoff $(($ZPOOL_SIZE_SUM_BYTES / 1024 / 1024 / 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\t$(($MEM_TOTAL_BYTES / 1024 / 1024))\tMB"
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echo -e "\tZpool size (sum):\t$(($ZPOOL_SIZE_SUM_BYTES / 1024 / 1024))\tMB"
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echo -e "Calculated l1arc if set to defaults:"
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if [ $ARC_MIN_DEFAULT_BYTES -lt 33554432 ]; then
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echo -e "\tDefault zfs_arc_min:\t32\tMB"
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else
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echo -e "\tDefault zfs_arc_min:\t$(($ARC_MIN_DEFAULT_BYTES / 1024 / 1024))\tMB"
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fi
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echo -e "\tDefault zfs_arc_max:\t$(($ARC_MAX_DEFAULT_BYTES / 1024 / 1024))\tMB"
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echo -e "Current l1arc configuration:"
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if [ $ARC_MIN_CUR_BYTES -gt 0 ]; then
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echo -e "\tCurrent zfs_arc_min:\t$(($ARC_MIN_CUR_BYTES / 1024 / 1024))\tMB"
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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 [ $ARC_MAX_CUR_BYTES -gt 0 ]; then
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echo -e "\tCurrent zfs_arc_max:\t$(($ARC_MAX_CUR_BYTES / 1024 / 1024))\tMB"
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else
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echo -e "\tCurrent zfs_arc_max:\t0"
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fi
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echo -e "Note: If your current values are 0, the calculated values above will apply."
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echo ""
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echo -e "The l1arc cache will be set relative to the size (sum) of your zpools by policy"
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echo -e "zfs_arc_min:\t\t\t$(($ZFS_ARC_MIN_MEGABYTES))\tMB\t\t= 512 MB RAM per 1 TB ZFS storage (round off in 512 MB steps)"
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echo -e "zfs_arc_max:\t\t\t$(($ZFS_ARC_MAX_MEGABYTES))\tMB\t\t= 1 GB RAM per 1 TB ZFS storage (round up in 512 MB steps)"
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echo ""
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RESULT=not_set
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while [ "$(echo $RESULT | awk '{print tolower($0)}')" != "y" ] && [ "$(echo $RESULT | awk '{print tolower($0)}')" != "n" ] && [ "$(echo $RESULT | awk '{print tolower($0)}')" != "" ]; do
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echo "If you want to apply the values by script policy type 'y', type 'n' to adjust the values yourself [Y/n]?"
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read
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RESULT=${REPLY}
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done
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if [[ "$(echo $RESULT | awk '{print tolower($0)}')" == "n" ]]; then
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echo "Please type in the desired value in MB for 'zfs_arc_min' [$(($ZFS_ARC_MIN_MEGABYTES))]:"
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read
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if [[ ${REPLY} -gt 0 ]]; then
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ZFS_ARC_MIN_MEGABYTES=$((${REPLY}))
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fi
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echo "Please type in the desired value in MB for 'zfs_arc_max' [$(($ZFS_ARC_MAX_MEGABYTES))]:"
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read
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if [[ ${REPLY} -gt 0 ]]; then
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ZFS_ARC_MAX_MEGABYTES=$((${REPLY}))
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fi
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fi
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#### SWAPPINESS ####
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echo -e "######## CONFIGURE SWAPPINESS ########\n"
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SWAPPINESS=$(cat /proc/sys/vm/swappiness)
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echo "The current swappiness is configured to '$SWAPPINESS %' of free memory until using swap."
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read -p "If you want to change the swappiness, please type in the percentage as number (0 = diasbled):" user_input
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if echo "$user_input" | grep -qE '^[0-9]+$'; then
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echo "Changing swappiness from '$SWAPPINESS %' to '$user_input %'"
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SWAPPINESS=$user_input
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else
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echo "No input - swappiness unchanged at '$SWAPPINESS %'."
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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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declare -A auto_snap_keep=( ["frequent"]="8" ["hourly"]="48" ["daily"]="31" ["weekly"]="8" ["monthly"]="3" )
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dpkg -l zfs-auto-snapshot > /dev/null
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if [ $? -eq 0 ]; then
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echo "'zfs-auto-snapshot' already installed. Reading config..."
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for interval in "${!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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else
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echo "'zfs-auto-snapshot' not installed yet, using script defaults..."
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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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read -p "Please set how many $interval snapshots to keep (current: keep=${auto_snap_keep[$interval]})" user_input
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if echo "$user_input" | grep -qE '^[0-9]+$'; then
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echo "Changing $interval from ${auto_snap_keep[$interval]} to $user_input"
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auto_snap_keep[$interval]=$user_input
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else
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echo "No input - $interval unchanged at ${auto_snap_keep[$interval]}."
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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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if [[ "$(uname -r)" == *"-pve" ]]; then
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echo "Deactivating pve-enterprise repository"
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mv /etc/apt/sources.list.d/pve-enterprise.list /etc/apt/sources.list.d/pve-enterprise.list.bak > /dev/null 2>&1
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echo "Activating pve-no-subscription repository"
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echo "deb http://download.proxmox.com/debian/pve buster pve-no-subscription" > /etc/apt/sources.list.d/pve-no-subscription.list
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fi
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echo "Getting latest package lists"
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apt update > /dev/null 2>&1
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# update system and install basic tools
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echo "Upgrading system to latest version - Depending on your version this could take a while..."
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DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq dist-upgrade > /dev/null 2>&1
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echo "Installing toolset - Depending on your version this could take a while..."
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DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install $TOOLS > /dev/null 2>&1
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# configure zfs-auto-snapshot
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for interval in "${!auto_snap_keep[@]}"; do
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echo "Setting zfs-auto-snapshot retention: $interval = ${auto_snap_keep[$interval]}"
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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 > /dev/null 2>&1
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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.$interval/zfs-auto-snapshot > /dev/null 2>&1
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fi
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fi
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done
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echo "Configuring swappiness"
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echo "vm.swappiness=$SWAPPINESS" > /etc/sysctl.d/swappiness.conf
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sysctl -w vm.swappiness=$SWAPPINESS
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echo "Configuring pve-conf-backup"
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# create backup jobs of /etc
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zfs list $PVE_CONF_BACKUP_TARGET > /dev/null 2>&1
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if [ $? -ne 0 ]; then
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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 -va --delete /etc /$PVE_CONF_BACKUP_TARGET > /$PVE_CONF_BACKUP_TARGET/pve-conf-backup.log" > /etc/cron.d/pve-conf-backup
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ZFS_ARC_MIN_BYTES=$((ZFS_ARC_MIN_MEGABYTES * 1024 *1024))
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ZFS_ARC_MAX_BYTES=$((ZFS_ARC_MAX_MEGABYTES * 1024 *1024))
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echo "Adjusting ZFS level 1 arc"
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echo $ZFS_ARC_MIN_BYTES > /sys/module/zfs/parameters/zfs_arc_min
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echo $ZFS_ARC_MAX_BYTES > /sys/module/zfs/parameters/zfs_arc_max
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cat << EOF > /etc/modprobe.d/zfs.conf
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options zfs zfs_arc_min=$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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echo "Updating initramfs - This will take some time..."
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update-initramfs -u -k all > /dev/null 2>&1
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echo "Proxmox postinstallation finished!"
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