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186 lines
5.4 KiB
186 lines
5.4 KiB
8 years ago
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#!/bin/bash -eux
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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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#
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# We can't use the OVA's for Vagrant since Vagrant uses SSH to modify the instance.
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# This build step creates a cloud-config ISO so that Cloud-Init will configure
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# the initial user, creates meta-data that tells Vagrant how to interact with
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# the cloud-init created users, and finally create the OVA.
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#
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# For this step, we re-use the VMDK's made in 040-vmdk-image.binary
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cur_d=${PWD}
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my_d=$(dirname $(readlink -f ${0}))
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architecture=$(chroot chroot dpkg --print-architecture)
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base_vmdk="livecd.ubuntu-cpc.disk1.vmdk"
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if [[ ! "${architecture}" =~ (amd64|i386) ]]; then
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echo "Vagrant images are not supported for ${architecutre}"
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exit 0
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elif [ ! -e ${base_vmdk} ]; then
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echo "Did not find VMDK to produce Vagrant images."
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exit 0
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fi
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. /build/config/functions
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# Virtualbox is needed for making a small VMDK
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apt-get -qqy install genisoimage qemu-utils
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# Lets be safe about this
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box_d=$(mktemp -d)
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seed_d=$(mktemp -d)
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trap "rm -rf ${box_d} ${seed_d}" EXIT
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# Used to identify bits
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suite=$(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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cp ${base_vmdk} ${vmdk_f}
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# Vagrant needs a base user. We either inject the well-known SSH key
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# or use password authentication. Both are ugly. So we'll use a password
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# and make it random. This obviously is insecure...but at least its
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# better than the alternatives.
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ubuntu_user_pass=$(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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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.synced_folder '.', '/vagrant', disabled: true
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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@@/${serial_stamp}/g" \
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-e "s/@@MEM_SIZE@@/1024/g"
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ovf_sha256=$(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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