Install CentOS cloud images on KVM using cloud-init (noCloud) ※理解するために書き直し

virt-install-centos

#!/bin/bash

POOL=${POOL:-zfsimages}
POOL_PATH=${POOL_PATH:-"/ztank/libvirt/images"}
ORIGINAL_IMAGE=${ORIGINAL_IMAGE:-CentOS-7-x86_64-GenericCloud.qcow2}

VM_NAME=${1}
VM_RAM=1024
VM_CPU=1
VM_DISK=${1}.qcow2
VM_SEED_CD=seed_${1}.iso

if [[ -n $IPADDR ]]; then
VM_ETH1_IFACE=${VM_ETH1_IFACE:-"iface eth1 inet static"}
VM_ETH1_IPADDR="address ${IPADDR}"
VM_ETH1_MASK="netmask ${NETMASK:-"255.255.255.0"}"
fi

# Take one argument from the commandline: VM name
if ! [ $# -eq 1 ]; then
    echo "Usage: $0 <node-name>"
    exit 1
fi

# Check if domain already exists
virsh dominfo $1 > /dev/null 2>&1
if [ "$?" -eq 0 ]; then
    echo -n "[WARNING] $1 already exists.  "
    read -p "Do you want to overwrite $1 (y/[N])? " -r
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo ""
        virsh destroy $1 > /dev/null
        virsh undefine $1 > /dev/null
    else
        echo -e "\nNot overwriting $1. Exiting..."
        exit 1
    fi
fi

LOG_FILE=${VM_NAME}.log
VM_UUID=$(uuidgen)

echo build kvm start from `date` > $LOG_FILE
echo "----------" | tee -a $LOG_FILE

echo "-- meta-data" | tee -a $LOG_FILE
cat <<EOS | tee -a meta-data 
instance-id: ${VM_UUID}
local-hostname: ${VM_NAME}
network-interfaces: |
  iface eth0 inet dhcp
  ${VM_ETH1_IFACE}
  ${VM_ETH1_IPADDR}
  ${VM_ETH1_MASK}
EOS

echo "-- user-data" | tee -a $LOG_FILE
cat <<EOS | tee -a user-data
#cloud-config

# user (centos)
password: passw0rd
chpasswd: { expire: False }
ssh_pwauth: True

manage_etc_hosts: true
hostname: ${VM_NAME}
fqdn: ${VM_NAME}.devopt.local

timezone: "Asia/Tokyo"

groups:
  - ansible

# passwd: password
users:
  - default
  - name: ansible
    gecos: ansible
    primary-group: ansible
    groups: wheel
    selinux-user: staff_u
    ssh-authorized-keys:
      - "ssh-rsa HOGEHOGE"
    sudo: "ALL=(ALL) NOPASSWD:ALL"
EOS


# create seed.iso
echo "-- genisoimage" | tee -a $LOG_FILE
genisoimage  -output ${VM_SEED_CD} -volid cidata -joliet -rock user-data meta-data 2>&1 | tee -a $LOG_FILE

# volume delete if exists
virsh vol-info ${VM_DISK} --pool ${POOL} > /dev/null 2>&1
if [ "$?" -eq 0 ]; then
    echo -n "[WARNING] ${VM_DISK} already exists.  "
    read -p "Do you want to delete ${VM_DISK} (y/[N])? " -r
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo ""
        virsh vol-delete ${VM_DISK} --pool ${POOL}
    else
        echo -e "\nNot delete ${VM_DISK}. Exiting..."
        exit 1
    fi
fi

# volume clone
echo "-- qemu-img create " | tee -a $LOG_FILE

qemu-img create -f qcow2 -b "${POOL_PATH}/${ORIGINAL_IMAGE}" "${POOL_PATH}/${VM_DISK}" | tee -a $LOG_FILE
#virsh vol-clone ${ORIGINAL_IMAGE} ${VM_DISK} --pool ${POOL} | tee -a $LOG_FILE

virsh pool-refresh --pool ${POOL} | tee -a $LOG_FILE
virsh vol-list --pool ${POOL} | tee -a $LOG_FILE

virt-install \
  --import \
  --name ${VM_NAME} \
  --uuid "${VM_UUID}" \
  --hvm \
  --virt-type kvm \
  --ram ${VM_RAM} \
  --vcpus ${VM_CPU} \
  --arch x86_64 \
  --os-type linux \
  --os-variant rhel7 \
  --boot hd \
  --disk vol=${POOL}/${VM_DISK} \
  --disk ${PWD}/${VM_SEED_CD},device=cdrom \
  --network network=default,model=virtio \
  --network bridge=br0,model=virtio \
  --graphics none \
  --console pty \
  --serial pty