Initial commit of autobuild/autodeploy PVC ISO system

2023-09-01 15:41:53 -04:00
commit ad1d2c3e89
6 changed files with 1117 additions and 0 deletions
--- a/buildiso.sh
+++ b/buildiso.sh
@ -0,0 +1,98 @@
+#!/bin/bash
+
+# Generate a PVC autoinstaller ISO
+
+# This ISO makes a number of assumptions about the system and asks
+# minimal questions in order to streamline the install process versus
+# using a standard Debian intaller ISO. The end system is suitable
+# for immediate bootstrapping with the PVC Ansible roles.
+
+
+fail() {
+    echo $@
+    exit 1
+}
+
+which debootstrap &>/dev/null || fail "This script requires debootstrap."
+which mksquashfs &>/dev/null || fail "This script requires squashfs."
+which xorriso &>/dev/null || fail "This script requires xorriso."
+
+liveisofile="$( pwd )/debian-live-buster-DI-rc1-amd64-standard.iso"
+tempdir=$( mktemp -d )
+
+prepare_iso() {
+    echo -n "Creating directories... "
+    mkdir ${tempdir}/rootfs/ ${tempdir}/installer/ || fail "Error creating temporary directories."
+    echo "done."
+
+    echo -n "Extracting Debian LiveISO files... "
+    iso_tempdir=$( mktemp -d )
+    sudo mount ${liveisofile} ${iso_tempdir} &>/dev/null || fail "Error mounting LiveISO file."
+	sudo rsync -au --exclude live/filesystem.squashfs ${iso_tempdir}/ ${tempdir}/installer/ || fail "Error extracting LiveISO files."
+    sudo umount ${iso_tempdir} &>/dev/null || fail "Error unmounting LiveISO file."
+    rmdir ${iso_tempdir} &>/dev/null
+    sudo cp -a grub.cfg ${tempdir}/installer/boot/grub/grub.cfg &>/dev/null
+    sudo cp -a menu.cfg ${tempdir}/installer/isolinux/menu.cfg &>/dev/null
+    echo "done."
+}
+
+prepare_rootfs() {
+    echo -n "Preparing Debian live installation via debootstrap... "
+    SQUASHFS_PKGLIST="mdadm,lvm2,parted,gdisk,debootstrap,grub-pc,linux-image-amd64,sipcalc"
+    test -d debootstrap/ || \
+    sudo /usr/sbin/debootstrap \
+        --include=${SQUASHFS_PKGLIST} \
+        buster \
+        debootstrap/ \
+        http://localhost:3142/ftp.ca.debian.org/debian &>/dev/null
+    sudo rsync -au debootstrap/ ${tempdir}/rootfs/
+    echo "done."
+   
+    echo -n "Configuring Debian live installation... "
+	sudo cp install.sh ${tempdir}/rootfs/
+    sudo cp ${tempdir}/rootfs/lib/systemd/system/getty\@.service ${tempdir}/rootfs/etc/systemd/system/getty@tty1.service
+    sudo sed -i \
+        's|/sbin/agetty|/sbin/agetty --autologin root|g' \
+         ${tempdir}/rootfs/etc/systemd/system/getty@tty1.service
+    
+    sudo tee ${tempdir}/rootfs/etc/hostname <<<"pvc-node-installer" &>/dev/null
+    sudo tee -a ${tempdir}/rootfs/root/.bashrc <<<"/install.sh" &>/dev/null
+    sudo chroot ${tempdir}/rootfs/ /usr/bin/passwd -d root &>/dev/null
+    echo "done."
+    
+    echo -n "Generating squashfs image of live installation... "
+    sudo nice mksquashfs ${tempdir}/rootfs/ ${tempdir}/installer/live/install.squashfs -e boot &>/dev/null
+    echo "done."
+}
+
+build_iso() {
+    pushd ${tempdir}/installer &>/dev/null
+    echo -n "Creating LiveCD ISO... "
+    xorriso -as mkisofs \
+       -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
+       -c isolinux/boot.cat \
+       -b isolinux/isolinux.bin \
+       -no-emul-boot \
+       -boot-load-size 4 \
+       -boot-info-table \
+       -eltorito-alt-boot \
+       -e boot/grub/efi.img \
+       -no-emul-boot \
+       -isohybrid-gpt-basdat \
+       -o ../pvc-installer.iso \
+       . &>/dev/null
+    popd &>/dev/null
+    echo "done."
+    echo -n "Moving generated ISO to '$(pwd)/pvc-installer.iso'... "
+    mv ${tempdir}/pvc-installer.iso . &>/dev/null
+    echo "done."
+}
+
+prepare_iso
+prepare_rootfs
+build_iso
+echo -n "Cleaning up... "
+sudo rm -rf ${tempdir} &>/dev/null
+echo "done."
+echo
+echo "PVC Live Installer ISO generation complete."