mirror of
https://github.com/bashclub/proxmox-zfs-postinstall.git
synced 2024-11-07 18:31:58 +01:00
162 lines
6.6 KiB
Bash
162 lines
6.6 KiB
Bash
#!/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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###### 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 list -o size -Hp | while read line; do SUM=$(($SUM+$line)); echo "ZPOOL_SIZE_SUM_BYTES=$SUM" > ./ZPOOL_SIZE_SUM_BYTES; done
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source ./ZPOOL_SIZE_SUM_BYTES
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rm -f ./ZPOOL_SIZE_SUM_BYTES
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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=$(cat /sys/module/zfs/parameters/zfs_arc_max)
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# calculate suggested l1arc sice
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ZFS_ARC_MIN_BYTES=$(($ZPOOL_SIZE_SUM_BYTES / 4096))
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ZFS_ARC_MAX_BYTES=$(($ZPOOL_SIZE_SUM_BYTES / 1024))
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echo -e "######## CONFIGURE ZFS L1ARC SIZE ########\n"
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echo "System Summary:"
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echo -e "\tSystem Memory:\t\t$(($MEM_TOTAL_BYTES / 1024 / 1024))\tMB"
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echo -e "\tZpool size (sum):\t$(($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 [ $ARC_MAX_CUR_BYTES -gt 0 ]; then
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echo -e "\tCurrent zfs_arc_max:\t$(($ARC_MAX_CUR_BYTES / 1024 / 1024))\tMB"
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else
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echo -e "\tCurrent zfs_arc_max:\t0"
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fi
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echo -e "Note: If your current values are 0, the calculated values above will apply."
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echo ""
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echo -e "The l1arc cache will be set relative to the size (sum) of your zpools by policy"
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echo -e "zfs_arc_min:\t\t\t$(($ZFS_ARC_MIN_BYTES / 1024 / 1024))\tMB\t\t= 256 MB RAM per 1 TB ZFS storage"
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echo -e "zfs_arc_max:\t\t\t$(($ZFS_ARC_MAX_BYTES / 1024 / 1024))\tMB\t\t= 1 GB RAM per 1 TB ZFS storage"
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echo ""
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RESULT=not_set
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while [ "$(echo $RESULT | awk '{print tolower($0)}')" != "y" ] && [ "$(echo $RESULT | awk '{print tolower($0)}')" != "n" ] && [ "$(echo $RESULT | awk '{print tolower($0)}')" != "" ]; do
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echo "If you want to adjust the values yourself type 'y', type 'n' to apply the values by script policy [y/N]?"
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read
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RESULT=${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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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 - $interval unchanged."
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fi
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done
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#### PVE CONF BACKUP CONFIGURATION ####
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# Define target dataset for backup of /etc
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# IMPORTANT NOTE: Don't type in the leading /, this will be set where needed
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PVE_CONF_BACKUP_TARGET=rpool/pveconf
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# Define timer for your backup cronjob (default: every 15 minutes)
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PVE_CONF_BACKUP_CRON_TIMER="*/15 * * * *"
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###### INSTALLER SECTION ######
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# disable pve-enterprise repo and add pve-no-subscription repo
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if [[ "$(uname -r)" == *"-pve" ]]; then
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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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fi
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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 $TOOLS
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# configure zfs-auto-snapshot
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for interval in "${!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 $ZFS_ARC_MAX_BYTES > /sys/module/zfs/parameters/zfs_arc_max
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cat << EOF > /etc/modprobe.d/zfs.conf
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options zfs zfs_arc_min=$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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# create backup jobs of /etc
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zfs list $PVE_CONF_BACKUP_TARGET
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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 -vhab --delete /etc /$PVE_CONF_BACKUP_TARGET > /$PVE_CONF_BACKUP_TARGET/pve-conf-backup.log" > /etc/cron.d/pve-conf-backup |