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livecd-rootfs/live-build/ubuntu-cpc/hooks/042-vagrant.binary

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6.7 KiB

#!/bin/bash -ex
# vi: ts=4 noexpandtab
#
# Generate a generic Vagrant Box.
#
# Vagrant images are essentially nothing more than OVA's with extra-metadata
# and some preinstalled packages.
#
# We can't use the OVA's for Vagrant since Vagrant uses SSH to modify the
# instance. This build step creates a cloud-config ISO so that Cloud-Init
# will configure the initial user, creates meta-data that tells Vagrant how
# to interact with the cloud-init created users, and finally create the OVA.
#
# For this step, we make a deriviative of binary/boot/disk.ext4 and install
# some packages in it, convert it to a vmdk, and then assemble the vagrant
# box.
case $IMAGE_TARGETS in
""|*vagrant*)
;;
*)
echo "Skipping Vagrant image build"
exit 0
;;
esac
cur_d=${PWD}
my_d=$(dirname $(readlink -f ${0}))
# Switch on $ARCH to determine which ID and description to use in the produced
# OVF. We have fancy Ubuntu-specific IDs in the OVF specification, we might as
# well use them.
case $ARCH in
amd64)
ovf_id=94
ovf_os_type="ubuntu64Guest"
ovf_desc_bits=64 ;;
i386)
ovf_id=93
ovf_os_type="ubuntu32Guest"
ovf_desc_bits=32 ;;
*)
echo "Vagrant images are not supported for $ARCH yet."
exit 0;;
esac
. config/functions
# Lets be safe about this
box_d=$(mktemp -d)
seed_d=$(mktemp -d)
mount_d=$(mktemp -d)
create_derivative "disk" "vagrant" #sets ${derivative_img}
mount_disk_image ${derivative_img} ${mount_d}
cleanup_vagrant() {
if [ -d "$mount_d" ]; then
umount_disk_image "$mount_d"
fi
rm -rf ${box_d} ${seed_d} ${mount_d} ${derivative_img}
}
trap cleanup_vagrant EXIT
chroot ${mount_d} apt-get update
# virtualbox-guest-utils Recommends: virtualbox-guest-x11, which we want to
# avoid pulling into a cloud image.
chroot ${mount_d} apt-get install --no-install-recommends -y virtualbox-guest-utils
chroot ${mount_d} apt-get clean
umount_disk_image "$mount_d"
rmdir "$mount_d"
# Used to identify bits
suite=$(chroot chroot lsb_release -c -s)
version=$(chroot chroot lsb_release --release --short)
distro=$(chroot chroot lsb_release --id --short | tr [:upper:] [:lower:])
# Get the VMDK in place
prefix="${distro}-${suite}-${version}-cloudimg"
vmdk_f="${box_d}/${prefix}.vmdk"
create_vmdk ${derivative_img} ${vmdk_f}
# Vagrant needs a base user. We either inject the well-known SSH key
# or use password authentication. Both are ugly. So we'll use a password
# and make it random. This obviously is insecure...but at least its
# better than the alternatives.
ubuntu_user_pass=$(openssl rand -hex 12)
####################################
# Create the ConfigDrive
# This is a cloud-init piece that instructs cloud-init to configure
# a default user at first boot.
cdrom_vmdk_f="${box_d}/${prefix}-configdrive.vmdk"
# Create the user-data. This is totally insecure, but so is Vagrant. To
# mitigate this insecurity, the vagrant instance is not accessible
# except via local host.
cat > ${seed_d}/user-data <<END
#cloud-config
password: ${ubuntu_user_pass}
chpasswd: { expire: False }
ssh_pwauth: True
manage_etc_hosts: localhost
END
# Create the fake meta-data
cat > ${seed_d}/meta-data <<END
instance-id: iid-$(openssl rand -hex 8)
local-hostname: ubuntu-${suite}
END
# Pad the cdrom, otherwise the VMDK will be invalid
dd if=/dev/zero of=${seed_d}/bloat_file bs=1M count=10
# Create the ISO
genisoimage \
-output ${seed_d}/seed.iso \
-volid cidata \
-joliet -rock \
-input-charset utf-8 \
${seed_d}/user-data \
${seed_d}/meta-data
# Make a VMDK out of the seed file.
create_vmdk ${seed_d}/seed.iso ${cdrom_vmdk_f} 10
### END Create ConfigDrive
##########################
##########################
# VAGRANT meta-data
# Create the Vagrant file. This file is used by Vagrant to define how
# Vagrant uses Virtualbox and how Vagrant interacts with the host.
macaddr="02$(openssl rand -hex 5 | tr [:lower:] [:upper:])"
cat > ${box_d}/Vagrantfile <<EOF
# Front load the includes
include_vagrantfile = File.expand_path("../include/_Vagrantfile", __FILE__)
load include_vagrantfile if File.exist?(include_vagrantfile)
Vagrant.configure("2") do |config|
config.vm.base_mac = "${macaddr}"
config.ssh.username = "ubuntu"
config.ssh.password = "${ubuntu_user_pass}"
config.vm.provider "virtualbox" do |vb|
vb.customize [ "modifyvm", :id, "--uart1", "0x3F8", "4" ]
vb.customize [ "modifyvm", :id, "--uartmode1", "file", File.join(Dir.pwd, "${prefix}-console.log") ]
end
end
EOF
# Tag it as a Virtualbox Vagrant
cat > ${box_d}/metadata.json <<EOF
{
"provider": "virtualbox"
}
EOF
# END
##########################
##########################
# Create the actual box
# Get information about the disks for the OVF
vmdk_size=$(du -b "${vmdk_f}" | cut -f1)
vmdk_capacity=$(qemu-img info "${vmdk_f}" | awk '-F[\( ]' '$1 ~ /virtual/ && $NF ~ /bytes.*/ {print$(NF-1)}')
vmdk_sha256=$(sha256sum ${vmdk_f} | cut -d' ' -f1)
cdrom_size=$(du -b "${cdrom_vmdk_f}" | cut -f1)
cdrom_capacity=$(qemu-img info "${cdrom_vmdk_f}" | awk '-F[\( ]' '$1 ~ /virtual/ && $NF ~ /bytes.*/ {print$(NF-1)}')
cdrom_sha256=$(sha256sum ${cdrom_vmdk_f} | cut -d' ' -f1)
# Populate the OVF template
ovf="${box_d}/box.ovf"
cp ${my_d}/ovf/ubuntu-ova-v1-cloudcfg-vmdk.tmpl ${ovf}
serial_stamp=$(date +%Y%m%d)
sed -i "${ovf}" \
-e "s/@@NAME@@/${prefix}-${serial_stamp}/g" \
-e "s/@@FILENAME1@@/${vmdk_f##*/}/g" \
-e "s/@@VMDK_FILE_SIZE@@/${vmdk_size}/g" \
-e "s/@@VMDK_CAPACITY@@/${vmdk_capacity}/g" \
-e "s/@@FILENAME2@@/${cdrom_vmdk_f##*/}/g" \
-e "s/@@VMDK_FILE_SIZE2@@/${cdrom_size}/g" \
-e "s/@@VMDK_CAPACITY2@@/${cdrom_capacity}/g" \
-e "s/@@NUM_CPUS@@/2/g" \
-e "s/@@VERSION@@/${version}/g" \
-e "s/@@DATE@@/${serial_stamp}/g" \
-e "s/@@MEM_SIZE@@/1024/g" \
-e "s/@@OVF_ID@@/${ovf_id}/g" \
-e "s/@@OVF_OS_TYPE@@/${ovf_os_type}/g" \
-e "s/@@OVF_DESC_BITS@@/${ovf_desc_bits}/g"
ovf_sha256=$(sha256sum ${ovf} | cut -d' ' -f1)
# Generate the manifest
manifest="${box_d}/${prefix}.mf"
cat > "${manifest}" <<EOF
SHA256(${vmdk_f##*/})= ${vmdk_sha256}
SHA256(${cdrom_vmdk_f##*/})= ${cdrom_sha256}
SHA256(${ovf##*/})= ${ovf_sha256}
EOF
# Now create the box
echo "Creating OVA with the following attributes:"
cat <<EOM
OVA information:
Name: ${prefix}
Size: ${vmdk_size}
VMDK Name: ${vmdk_f##*/}
VMDK Capacity: ${vmdk_capacity}
VMDK SHA256: ${vmdk_sha256}
CDROM Name: ${cdrom_vmdk_f##*/}
CDROM Capacity: ${cdrom_capacity}
CDROM SHA256: ${cdrom_sha256}
EOM
tar -C ${box_d} \
-cf ${cur_d}/livecd.ubuntu-cpc.vagrant.box \
box.ovf \
Vagrantfile \
metadata.json \
${prefix}.mf \
${vmdk_f##*/} \
${cdrom_vmdk_f##*/}