195 lines
6.3 KiB
Bash
195 lines
6.3 KiB
Bash
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#!/bin/bash
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#
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# virt-install-cloud.sh : script to start an OpenStack cloud image on kvm
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# version : 1.1
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#
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# Author : Claude Durocher
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# License : GPLv3
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#
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#
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# Heavily Modified By: Brielle Bruns
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# Date: 04/09/2018
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# URL: https://git.sosdg.org/brielle/virt-install-cloud
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#
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# ref. http://mojodna.net/2014/05/14/kvm-libvirt-and-ubuntu-14-04.html
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#
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# requires the following packages on Ubuntu host:
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# wget qemu-kvm libvirt-bin virtinst bridge-utils genisoimage|xorriso
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# requires the following packages on CentOS host:
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# wget qemu-kvm libvirt virt-install bridge-utils genisoimage|xorriso
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#
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# Example CLI
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# virt-install-cloud.sh hostname domain disk-size ramsize
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# check if the script is run as root user
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if [[ $USER != "root" ]]; then
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echo "This script must be run as root!" && exit 1
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fi
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# image selection : trusty, precise, centos7, fedora26, ...
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IMG="stretch"
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# architecture : amd64 or i386
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ARCH="amd64"
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OS_TYPE="debian"
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OS_VARIANT="debian9"
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# kvm defaults pool paths
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DEF_POOL=images
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DEF_POOL_PATH=/data/images
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# vm prefs : specify vm preferences for your guest
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BACKUP_ISO_FILES=no # yes or no
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GUEST_NAME=${1}
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DOMAIN=${2}
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VROOTDISKSIZE=${3}
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VCPUS=2
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VMEM=${4}
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NETWORK="bridge=vlan2-bridge,model=virtio"
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# guest image format: qcow2 or raw
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FORMAT=raw
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# convert image format : yes or no
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CONVERT=yes
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# kvm pool
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POOL=images
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POOL_PATH=/data/images
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sed -e "s/%GUEST_NAME%/${GUEST_NAME}/" meta-data > output/meta-data
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sed -e "s/%FQDN%/${GUEST_NAME}.${DOMAIN}/" user-data > output/user-data
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case $IMG in
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trusty) IMG_USER="ubuntu"
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IMG_URL="http://cloud-images.ubuntu.com/releases/14.04/release"
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IMG_NAME="ubuntu-14.04-server-cloudimg-${ARCH}-disk1.img"
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;;
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xenial) IMG_USER="ubuntu"
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IMG_URL="http://cloud-images.ubuntu.com/releases/16.04/release"
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IMG_NAME="ubuntu-16.04-server-cloudimg-${ARCH}-disk1.img"
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;;
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artful) IMG_USER="ubuntu"
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IMG_URL="http://cloud-images.ubuntu.com/releases/17.10/release"
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IMG_NAME="ubuntu-17.10-server-cloudimg-${ARCH}-disk1.img"
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;;
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bionic) IMG_USER="ubuntu"
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IMG_URL="http://cloud-images.ubuntu.com/releases/18.04/release"
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IMG_NAME="ubuntu-18.04-server-cloudimg-${ARCH}.img"
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;;
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centos6) IMG_USER="centos"
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IMG_URL="https://cloud.centos.org/centos/6/images"
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if [[ $ARCH = "amd64" ]]; then
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IMG_NAME="CentOS-6-x86_64-GenericCloud.qcow2"
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else
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echo "Cloud image not available!"; exit 1
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fi
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;;
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centos7) IMG_USER="centos"
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IMG_URL="https://cloud.centos.org/centos/7/images"
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if [[ $ARCH = "amd64" ]]; then
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IMG_NAME="CentOS-7-x86_64-GenericCloud.qcow2"
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else
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echo "Cloud image not available!"; exit 1
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fi
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;;
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fedora27) IMG_USER="fedora"
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if [[ $ARCH = "amd64" ]]; then
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IMG_URL="https://download.fedoraproject.org/pub/fedora/linux/releases/27/CloudImages/x86_64/images/"
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IMG_NAME="Fedora-Cloud-Base-27-1.6.x86_64.qcow2"
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else
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echo "Cloud image not available!"; exit 1
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fi
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;;
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jessie) IMG_USER="debian"
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if [[ $ARCH = "amd64" ]]; then
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IMG_URL="https://cdimage.debian.org/cdimage/openstack/current-8"
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IMG_NAME="debian-8-openstack-amd64.qcow2"
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else
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echo "Cloud image not available!"; exit 1
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fi
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;;
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stretch) IMG_USER="debian"
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if [[ $ARCH = "amd64" ]]; then
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IMG_URL="https://cdimage.debian.org/cdimage/openstack/current-9"
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IMG_NAME="debian-9-openstack-amd64.qcow2"
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else
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echo "Cloud image not available!"; exit 1
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fi
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;;
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*) echo "Cloud image not available!"; exit 1
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;;
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esac
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if [[ ! -f ${IMG_NAME} ]]; then
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echo "Downloading image ${IMG_NAME}..."
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wget ${IMG_URL}/${IMG_NAME} -O ${IMG_NAME}
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chmod 644 ${IMG_NAME}
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else
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echo "Using existing image ${IMG_NAME}..."
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fi
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# check if pool exists, otherwise create it
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if [[ "$(virsh pool-list|grep ${POOL} -c)" -ne "1" ]]; then
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echo "Creating pool ${POOL}..."
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virsh pool-define-as --name ${POOL} --type dir --target ${POOL_PATH}
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virsh pool-autostart ${POOL}
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virsh pool-build ${POOL}
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virsh pool-start ${POOL}
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fi
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# write the two cloud-init files into an ISO
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echo "Preparing ISO file required by cloud-init..."
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#genisoimage -input-charset utf8 -output configuration.iso -volid cidata -joliet -rock user-data meta-data
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xorriso -in_charset utf8 -outdev configuration.iso -volid cidata -joliet on -rockridge on -map output/user-data user-data -map output/meta-data meta-data
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# keep a backup of the files for future reference
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if [[ "${BACKUP_ISO_FILE}" == "yes" ]]; then
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cp user-data ${GUEST_NAME}.user-data
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cp meta-data ${GUEST_NAME}.meta-data
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chmod 640 ${GUEST_NAME}.user-data ${GUEST_NAME}.meta-data
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fi
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# copy ISO into libvirt's directory
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cp configuration.iso ${POOL_PATH}/${GUEST_NAME}.configuration.iso
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virsh pool-refresh ${POOL}
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# copy image to libvirt's pool
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if [[ ! -f ${POOL_PATH}/${IMG_NAME} ]]; then
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cp ${IMG_NAME} ${POOL_PATH}
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virsh pool-refresh ${POOL}
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fi
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# clone cloud image
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virsh vol-clone --pool ${POOL} ${IMG_NAME} ${GUEST_NAME}.root.img
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virsh vol-resize --pool ${POOL} ${GUEST_NAME}.root.img ${VROOTDISKSIZE}
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# convert image format
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if [[ "${CONVERT}" == "yes" ]]; then
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echo "Converting image to format ${FORMAT}..."
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qemu-img convert -O ${FORMAT} ${POOL_PATH}/${GUEST_NAME}.root.img ${POOL_PATH}/${GUEST_NAME}.root.img.${FORMAT}
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rm ${POOL_PATH}/${GUEST_NAME}.root.img
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mv ${POOL_PATH}/${GUEST_NAME}.root.img.${FORMAT} ${POOL_PATH}/${GUEST_NAME}.root.img
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virsh pool-refresh ${POOL}
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fi
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echo "Creating guest ${GUEST_NAME}..."
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virt-install \
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--name ${GUEST_NAME} \
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--cpu host \
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--ram ${VMEM} \
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--vcpus=${VCPUS} \
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--noautoconsole \
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--memballoon virtio \
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--network ${NETWORK} \
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--boot hd \
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--disk vol=${POOL}/${GUEST_NAME}.root.img,format=${FORMAT},bus=virtio,cache=none \
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--disk vol=${POOL}/${GUEST_NAME}.configuration.iso,bus=virtio \
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--console pty,target_type=serial \
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--os-type=${OS_TYPE} --os-variant=${OS_VARIANT}
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# display result
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echo
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echo "List of running VMs :"
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echo
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virsh list
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# cleanup
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rm configuration.iso output/meta-data output/user-data
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