112 lines
2.9 KiB
Bash
Executable File
112 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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set -v
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# Based on
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# https://wiki.alpinelinux.org/wiki/LVM_on_LUKS
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# Prerequisites for this script
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# setup-interfaces
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# ifup eth0
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# Ask for passwords
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read -sp 'Encryption password:' ENCPWD
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echo
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# Set up repositories
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cat <<EOF >/etc/apk/repositories
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http://dl-cdn.alpinelinux.org/alpine/v3.9/main
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http://dl-cdn.alpinelinux.org/alpine/v3.9/community
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EOF
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# Install disk management tools
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apk --no-cache add lvm2 cryptsetup e2fsprogs syslinux
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# Create disk partitions
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cat <<EOF | fdisk /dev/sda
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n
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p
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1
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+50m
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a
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1
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n
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p
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2
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t
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2
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8e
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w
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EOF
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# Set up partition encryption
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echo -n "${ENCPWD}" | cryptsetup -q luksFormat /dev/sda2
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echo -n "${ENCPWD}" | cryptsetup open --type luks /dev/sda2 system
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# Set up LVM
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pvcreate /dev/mapper/system
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vgcreate vg0 /dev/mapper/system
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lvcreate -l 100%FREE vg0 -n root
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# Format
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mkfs.ext4 -m0 /dev/sda1
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mkfs.ext4 -m1 /dev/vg0/root
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# Mount
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mount -t ext4 /dev/vg0/root /mnt
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mkdir /mnt/boot
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mount -t ext4 /dev/sda1 /mnt/boot
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# Install Alpine linux
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setup-disk -m sys /mnt
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# Update boot-time volume information
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BOOT_UUID=$(blkid -o value /dev/sda1 | head -1)
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CRYPT_UUID=$(blkid -o value /dev/sda2 | head -1)
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cat <<EOF >/mnt/etc/fstab
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/dev/vg0/root / ext4 rw,noatime,data=ordered 0 1
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UUID=${BOOT_UUID} /boot ext4 rw,noatime,data=ordered 0 2
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/dev/vg0/swap swap swap defaults 0 0
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EOF
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echo "system UUID=${CRYPT_UUID} none luks" >/mnt/etc/crypttab
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# Rebuild initfs
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sed -i 's/lvm/lvm cryptsetup/' /mnt/etc/mkinitfs/mkinitfs.conf
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mkinitfs -c /mnt/etc/mkinitfs/mkinitfs.conf -b /mnt $(ls /mnt/lib/modules)
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# Update extlinux (ignore the errors)
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sed -i "s/rootfstype=ext4/rootfstype=ext4 cryptroot=UUID=${CRYPT_UUID} cryptdm=system/" /mnt/etc/update-extlinux.conf
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chroot /mnt update-extlinux
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sed -i 's/overwrite=1/overwrite=0/' /mnt/etc/update-extlinux.conf
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# Set time zone
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chroot /mnt setup-timezone -z Europe/Prague
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# Install basic system
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apk --no-cache add apache2-utils gettext
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wget https://repo.spotter.cz/vm.tar -O - | tar xf - -C /mnt
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envsubst </boot/extlinux.conf.old >/boot/extlinux.conf
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chroot /mnt apk --no-cache add bridge ca-certificates curl e2fsprogs-extra gettext iptables kbd-misc libressl lxc postfix nginx openssh-server openssh-sftp-server util-linux wireguard-virt@vm wireguard-tools-wg@vm acme-sh@vm vmmgr@vm
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chroot /mnt newaliases
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mkdir -p /mnt/var/log/lxc
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for SERVICE in cgroups consolefont crond iptables networking nginx ntpd postfix swap urandom vmmgr; do
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ln -s /etc/init.d/${SERVICE} /mnt/etc/runlevels/boot
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done
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ADMINPWD=$(htpasswd -bnBC 10 '' "${ENCPWD}" | tr -d ':\n' | sed 's/$2y/$2b/') envsubst </mnt/etc/vmmgr/config.default.json >/mnt/etc/vmmgr/config.json
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# Cleanup
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rm -rf /mnt/root
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mkdir -p /mnt/root/.ssh
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# Install bootloader to MBR
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dd bs=440 count=1 conv=notrunc if=/mnt/usr/share/syslinux/mbr.bin of=/dev/sda
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# Unmount and shut down
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umount /mnt/boot
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umount /mnt
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vgchange -a n
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cryptsetup luksClose system
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poweroff
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