KVMでk8sクラスタを自動で作成する

master

k8sdep.sh

#!/bin/bash
cd `dirname $0`

rm /home/yamato/kubetoken
virt-clone --original ubuntu2 --name ubuntu-k8s-master-$1 --file /var/lib/libvirt/images/ubuntu-k8s-master-$1.qcow2



virt-edit -d ubuntu-k8s-master-$1 /etc/netplan/00-installer-config.yaml -e "s/172.24.20.30/172.24.20.$1/"
virt-edit -d ubuntu-k8s-master-$1 /etc/hostname -e "s/ubuntu-k8s-master/ubuntu-k8s-master-$1/"

virsh start ubuntu-k8s-master-$1

worker

k8swordep.sh

#!/bin/bash
cd `dirname $0`

virt-clone --original ubuntu3 --name ubuntu-k8s-worker-$1 --file /var/lib/libvirt/images/ubuntu-k8s-worker-$1.qcow2



virt-edit -d ubuntu-k8s-worker-$1 /etc/netplan/00-installer-config.yaml -e "s/172.24.20.31/172.24.20.$1/"
virt-edit -d ubuntu-k8s-worker-$1 /etc/hostname -e "s/ubuntu-k8s-worker/ubuntu-k8s-worker-$1/"


virt-edit -d ubuntu-k8s-worker-$1 /etc/rc.sh -e "s/172.24.20.30/172.24.20.$3/"
TT="--token kgu8yd.3b83hmhjeesqpqz3 --discovery-token-ca-cert-hash sha256:c3262b24e5b222fcc09affb10efd66e59ba821b443f82e4ec28a45e9e86883bc"
virt-edit -d ubuntu-k8s-worker-$1 /etc/rc.sh -e "s/$TT/$4/"

cp -p /var/lib/libvirt/images/k8s.qcow2 /var/lib/libvirt/images/k8s-$1.qcow2


mozi="<disk type='file' device='disk'><driver name='qemu' type='qcow2' cache='none'/><source file='/var/lib/libvirt/images/k8s-$1.qcow2'/><target dev='vdb' bus='virtio'/><address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/></disk><disk type='file' device='cdrom'>"
mozi1="<disk type='file' device='cdrom'>"


sed -e "s#$mozi1#$mozi#g" -i /etc/libvirt/qemu/ubuntu-k8s-worker-$1.xml





virsh define /etc/libvirt/qemu/ubuntu-k8s-worker-$1.xml
virsh start ubuntu-k8s-worker-$1

k8swordep.py

import os,sys,time

args = sys.argv

ip1 = args[1]
ip = int(ip1)

num1 = args[2]
num = int(num1)

masip = args[3]
token = args[4]

while num > 0:

    com = "/home/yamato/image/k8swordep.sh " +"\""+ str(ip) +"\"" + " "+"\""+ str(num) +"\"" + " "+"\""+ str(masip) +"\"" + " "+"\""+ str(token) +"\""
    print(com)
    os.system(com)
    ip = ip + 1
    num = num - 1
    time.sleep(5)

print("VM作成完了")