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upsnapz.sh
Executable file
279
upsnapz.sh
Executable file
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#!/bin/bash
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# Time-stamp: <2025-02-09 07:37:50 nomad>
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#
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# Michel Le Cocq <lecocq@ipgp.fr>
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# <nomad@neuronfarm.net>
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#
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# Licence Art Libre 1.3 (LAL 1.3)
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# upsnapz.sh
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# What dit it do ?
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# - apt update
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# -
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## To do or not :
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#
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# ajouter zpool upgrade or not
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# ajouter question cleanup zroot
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#
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# regarder si un nouveau kernel existe et si oui faire ce qu'il y a a faire
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function check_zpool_status
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{
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# check zpool status if it's upgradable
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printf 'Check ZFS pool status:\n'
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e=$(zpool status | grep action | grep 'zpool upgrade')
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if [ $? -eq 0 ]
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then
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printf 'One or more ZFS pool can be upgraded\n'
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zpool status
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printf 'In case of ZFS Root be carefull that your bootloader is up to date and compatible with this new ZFS feature.\n'
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else
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printf 'every things ok for ZFS pool.\n'
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fi
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}
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function check_ZFS_BOOT_MENU
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{
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# need to do
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# use https://github.com/zbm-dev/zfsbootmenu/releases/download/v3.0.1/sha256.txt
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# check sha256sum /boot/efi/EFI/ZBM/VMLINUZ.EFI vs .../sha256.txt
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# display your current using release
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#
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# affiche si la version que l'on a actuellement est dans le fichier sha256.txt du github
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# grep $(sha256sum /boot/efi/EFI/ZBM/VMLINUZ.EFI | awk '{print $1}') sha256.txt
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#
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# le numero de version est dans l'URL
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# url du dernier : https://get.zfsbootmenu.org/latest.EFI
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# comment afficher le numero de version actuel ???
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printf '\nCheck ZFS_BOOT_MENU:\n'
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# curl -# -o /tmp/VMLINUZ.EFI -L https://get.zfsbootmenu.org/efi
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# if [ $(md5sum /tmp/VMLINUZ.EFI | awk '{print $1}') != $(md5sum /boot/efi/EFI/ZBM/VMLINUZ.EFI | awk '{print $1}') ];
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# then
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# printf '\n/!\ /boot/efi/EFI/ZBM/VMLINUZ.EFI is different as one present on https://get.zfsbootmenu.org/efi\n\n'
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# printf '\n https://github.com/zbm-dev/zfsbootmenu/releases\n'
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# printf 'considere update it by running:\n\n'
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# printf ' curl -o /boot/efi/EFI/ZBM/VMLINUZ.EFI -L https://get.zfsbootmenu.org/efi\n'
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# printf ' cp /boot/efi/EFI/ZBM/VMLINUZ.EFI /boot/efi/EFI/ZBM/VMLINUZ-BACKUP.EFI\n\n'
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# else
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# printf 'every things ok for ZFS_BOOT_MENU\n'
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# fi
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# rm /tmp/VMLINUZ.EFI
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PA="https://get.zfsbootmenu.org/sha256.txt"
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echo "Hit:zfsbootmenu "$PA
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curl -s -o /tmp/sha256.txt -L $PA
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e=$(grep $(sha256sum /boot/efi/EFI/ZBM/VMLINUZ.EFI | awk '{print $1}') /tmp/sha256.txt | awk -F"[()]" '{print $2}' )
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echo -n "zfsbootmenu version : "
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echo $e | awk -F'-' '{print $4}'
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if [ ! -z $e ]
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then
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echo "in sync with : "$PA
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else
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echo "/!\ not in sync with : "$PA
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echo 'avaible release :'
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cat /tmp/sha256.txt | grep EFI | grep release | awk -F"[()]" '{print $2}'
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fi
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}
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function askpromote()
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{
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# ask if we wanted to promote that last snapshot
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# promote last bootfs snapshot to a new bootfs env
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# suggest name for new bootfs env
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# clone promote activate new bootfs
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# ask to reboot to new bootfs
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snapname=$1
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bootfs=$2
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parents=$(zfs list -o name | grep $bootfs | awk 'BEGIN{FS=OFS="/"}{NF--; print}')
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printf '\nclone and promote before upgrade %s or not \nhost will reboot to new bootfs : [Y-n]' $bootfs@$snapname
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read dopromote
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if [ -z $dopromote ]
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then
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dopromote='y'
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echo y
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fi
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if [[ "$dopromote" == "y" ]]
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then
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printf '\nactual bootfs : %s\n' $bootfs
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printf 'other bootfs :\n' $bootfs
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zfs list -o name,creation -r $parents -s creation | grep -v ^$parents$
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e=$(lsb_release -is)
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f=$(date +%b)
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sugsname="${e,,}_"$(lsb_release -cs)"_"$(date +%Y)"_"$(date +%m)"_"$(date +%d)
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zfs list -H -o name | grep $sugsname
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if [ $? -eq 0 ]
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then
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sugsname=$sugsname"_"$(date +%Y-%m-%d-%H%M%S)
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fi
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printf '\nname suggestion for new zpool bootfs : %s [Y-n]' $sugsname
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read namepros
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if [ -z $namepros ]
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then
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echo y
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namepros='y'
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fi
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if [[ "$namepros" == "n" ]]
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then
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printf 'new bootfs name :'
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read sugsname
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if [ $(zfs list -H -o name | grep $sugsname) -eq 0 ]
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then
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sugsname=$newname_$(date +%Y-%m-%d-%H%M%S)
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printf '%s already exist I siggest : %s\n'
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fi
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printf 'name suggestion : %s\n' $sugsname
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fi
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sudo zfs clone $bootfs@$snapname $parents/$sugsname
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sudo zfs promote $parents/$sugsname
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sudo zfs set -u mountpoint=/ $parents/$sugsname
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sudo zfs set canmount=noauto $parents/$sugsname
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sudo zpool set bootfs=$parents/$sugsname zroot
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printf '%s will reboot to new bootfs %s in 5s\nHit Ctrl^c to abort' $(hostname) $sugsname
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printf "\nRun again current script $(basename $0) after reboot.\n"
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echo -n '.'; sleep 1; echo -n '.'; sleep 1; echo -n '.'; sleep 1; echo -n '.'; sleep 1; echo -n '.';sleep 1; echo -n '.';sleep 1; echo -n '.'
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sudo reboot
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else
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echo no
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fi
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}
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function askautoclean()
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{
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# ask to autoremove and zfs snapshot before
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printf '\napt-get -s autoremove\n'
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if [ $(apt-get -s autoremove | sed -n '/The following packages will be REMOVED:/,/^[0-9+] upgraded, [0-9+] newly installed, [0-9+] to remove and [0-9+] not upgraded.$/p' | wc -l) -gt 0 ]
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then
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apt-get -s autoremove | sed -n '/The following packages will be REMOVED:/,/^[0-9+] upgraded, [0-9+] newly installed, [0-9+] to remove and [0-9+] not upgraded.$/p'
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printf '\n%s\n' 'Do we run an autoremove ? : [Y-n]'
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read autoclean
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if [ -z $autoclean ]
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then
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echo y
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autoclean='y'
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fi
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if [[ "$autoclean" == "y" ]]
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then
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printf 'before autoremove : '
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asksnap
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sudo apt-get -y autoremove
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else
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echo
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fi
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fi
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sudo apt autoclean
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}
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function asksnap()
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{
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# print creation info of last bootfs snapshot
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# ask if we want a snapshot of bootfs
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# snapshot bootfs
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bootfs=$(zpool get bootfs -o value -H zroot)
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l=$(zfs list -H -t snapshot -o creation,name -S creation $(zpool get bootfs -o value -H zroot) | head -n1)
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printf 'last snapshot : \n%s\n' "$l"
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printf '%s <- now\n' "$(date '+%a %b %d %H:%M %Y')"
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printf 'snapshot bootfs %s or not ? : [Y-n]' $bootfs
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read dosnap
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if [ -z $dosnap ]
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then
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echo y
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dosnap='y'
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fi
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if [[ "$dosnap" == "y" ]]
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then
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snapname=$(date +%Y-%m-%d-%H%M%S)
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sudo zfs snapshot $bootfs@$snapname
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zfs list -H -o name $bootfs@$snapname
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askpromote $snapname $bootfs
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else
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echo no
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fi
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}
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function askupgrade()
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{
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# run apt update
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# if there were upgrade ask for upgrade or not
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# ask for making a snapshot
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# run apt upgrade
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# else
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# ask for making a snapshot
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printf '%s\n' 'apt update'
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sudo apt update
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if [ $(apt list --upgradable 2>/dev/null | wc -l) -gt 1 ]
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then
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printf '\n%s\n' 'apt list --upgradable'
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apt list --upgradable
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printf '\nUpgrade or not : [Y-n]'
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read answer
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if [ -z $answer ]
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then
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echo y
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answer='y'
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fi
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if [[ "$answer" == "y" ]]
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then
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printf 'before upgrade : '
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asksnap
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printf '%s\n' 'apt -y upgrade'
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sudo apt -y upgrade
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else
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echo no
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fi
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else
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echo
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asksnap
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fi
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}
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function usage()
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{
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echo "Usage: $(basename $0) [-h]"
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echo "-b : only check zfs boot menu"
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}
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while getopts 'hb' OPTION; do
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case "$OPTION" in
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h)
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usage
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exit 1
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;;
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b)
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check_ZFS_BOOT_MENU
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echo
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exit 1
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;;
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?)
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usage
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exit 1
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;;
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esac
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done
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askupgrade
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askautoclean
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echo
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check_zpool_status
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check_ZFS_BOOT_MENU
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echo
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zpool status
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printf '\nNothing else to do.\n'
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~/bin/clean-snapshot.sh
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