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