todo list

check exists cloud image
if image is dont exitst try download cloud image ans extract image
check exists vm file, if exists purge files
generate new user-data, meta-data
generate ci-image file
create vm

설명

아래 스크립트 대로 실행하면
- 인증 : ssh passwd 인증 root, yjkim1
- 인증 : ssh-authorized-key 인증, yjkim1 -> sudo 하셔서 다음 작업하시면 됨
metadata
- static ip 정의 방법 까지는 테스트 해서 돌아가는것 확인 되었음
- cloud-init 20.02 버전의 latest 상태이며
- network 정의 방식이 nodatasource 의 레거시 정의방식은 잘되는것 확인
- version2 는 netplan 방식이다보니 안되는듯 함
- version1 도 해보니 안됨, 추가 디버깅 필요
- hostname 세팅도 잘되고 있음



> ls -al template
-rwxrwxrwx 1 root root 858783744  6월 20 00:56 CentOS-7-x86_64-GenericCloud-2003.qcow2
-rwxrwxrwx 1 root root       206  6월 20 12:41 meta-data
-rwxrwxrwx 1 root root      1117  6월 20 12:00 user-data

> cat template/user-data
#cloud-config
users:
  - name: yjkim1
    passwd: $6$5Z0nx4BSLgORhjka$tTGRJQi9cdh8a3tNVfrWCl1gHT9/t0jGQtZ3D4Ksm5ytDu2FXIubiIqalFm8dkO8Z/N4ilZP4EH3FG5IUfxNu/
    groups: wheel
    lock_passwd: false
    shell: /bin/bash
    sudo: ['ALL=(ALL) NOPASSWD:ALL']
    ssh-authorized-keys:
      - ssh-rsa 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 yjkim1@yjkim1-15Z980-GP50ML

    # yjkim1:admin1234 
    # ssh-auth token 은 local 의 ssh key 이다. ssh-keygen -> ~/.ssh/idrsa.pub

ssh_pwauth: false
disable_root: false
chpasswd:
  list: |
     root:admin1234
  expire: False

# Remove cloud-init
runcmd:
#  - yum -y remove cloud-init
#  - updatedb

# Configure where output will go
output:
  all: ">> /var/log/cloud-init.log"
# EOF 

> cat template/meta-data
instance-id: kf0
local-hostname: kf0

network:
  version: 1
  config:
  - id: eth0
    mtu: 1500
    name: eth0
    subnets:
    - address: 192.168.122.14/24
      gateway: 192.168.122.1
      type: static
# EOF

> cat create-vm.sh
#!/bin/bash 

WORKSPACE=${PWD}
TEMPLATE=$WORKSPACE/template

CPU=6
MEM=10240
HOSTNAME=kf0
DISK=$HOSTNAME.qcow2

USER_DATA=user-data
META_DATA=meta-data
CI_ISO=$HOSTNAME-cidata.iso

IMAGE=$TEMPLATE/CentOS-7-x86_64-GenericCloud-2003.qcow2

rm -rf $WORKSPACE/$HOSTNAME 
mkdir -p $WORKSPACE/$HOSTNAME
cp $IMAGE $WORKSPACE/$HOSTNAME/$HOSTNAME.qcow2

cp $TEMPLATE/user-data $WORKSPACE/$HOSTNAME/$USER_DATA
cp $TEMPLATE/meta-data $WORKSPACE/$HOSTNAME/$META_DATA

genisoimage -output $WORKSPACE/$HOSTNAME/$CI_ISO -volid cidata -joliet -r $WORKSPACE/$HOSTNAME/$USER_DATA $WORKSPACE/$HOSTNAME/$META_DATA &>> $WORKSPACE/$HOSTNAME/$HOSTNAME-gen-image.log

virt-install \
  --memory $MEM \
  --vcpus $CPU \
  --name ${HOSTNAME} \
  --disk $WORKSPACE/$HOSTNAME/$HOSTNAME.qcow2,device=disk \
  --disk $WORKSPACE/$HOSTNAME/$CI_ISO,device=cdrom \
  --os-type Linux \
  --os-variant centos7.0 \
  --virt-type kvm \
  --graphics none \
  --network default \
  --import
# EOF 

> cat template/backup/meta-data-static-ip-success-case
instance-id: kf0
local-hostname: kf0

network-interfaces: |
  iface eth0 inet static
  address 192.168.122.2
  network 192.168.122.0
  netmask 255.255.255.0
  broadcast 192.168.122.255
  gateway 192.168.122.254
# EOF 

> sh -x create-vm.sh

결과물

https://github.com/seaofnight/cloud-init-tutorial

참고자료

Last modified on 2020-06-19