|
Size: 1946
Comment:
|
Size: 1414
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 47: | Line 47: |
| == Unique keys for ssh == Make sure your clone does indeed have unique ssh keys. This is a really important step when cloning. Consider all your clones had the same ssh keys, that would really be a mess. {{{ rm /etc/ssh/ssh_host_* dpkg-reconfigure openssh-server service sshd restart }}} == Hostname == Change the hostname of your new guest. {{{ cp /etc/hosts /etc/hosts.bak sed -i "s/stretch-template/clone/g" /etc/hosts cp /etc/hostname /etc/hostname.bak sed -i "s/stretch-template/clone/g" /etc/hostname }}} == Root password == Make sure to change the root password. {{{ passwd }}} |
== Guest OS == Continue by configuring the [[KVM Guest|editing the domain]]. |
Domain Cloning
Once a template system has been installed, that system can be cloned. virt-clone will automatically change the MAC address of your network device.
Cloning
Use the script below to clone your template.
domain_clone.sh
1 #!/bin/sh
2
3 LVM_GROUP="vg2"
4 NAME_ORIGINAL="stretch-template"
5 LVM_NAME_ORIGINAL="kvm_${NAME_ORIGINAL}_vda"
6 LVM_SIZE_ORIGINAL=`lvs /dev/${LVM_GROUP}/${LVM_NAME_ORIGINAL} -o LV_SIZE --noheadings --units B --nosuffix`
7 NAME_CLONE="stretch-clone"
8 LVM_NAME_CLONE="kvm_${NAME_CLONE}_vda"
9
10 if [ $# -gt 0 ]
11 then
12 NAME_CLONE=${1}
13 LVM_NAME_CLONE="kvm_${NAME_CLONE}_vda"
14 fi
15
16 if [ ! -e /dev/${LVM_GROUP}/${LVM_NAME_CLONE} ]
17 then
18 # create lvm partition
19 lvcreate --size ${LVM_SIZE_ORIGINAL}B --name ${LVM_NAME_CLONE} ${LVM_GROUP}
20
21 # clone the domain
22 virt-clone --original ${NAME_ORIGINAL} --name ${NAME_CLONE} --file /dev/${LVM_GROUP}/${LVM_NAME_CLONE} --check path_in_use=off,path_exists=off
23 else
24 echo "${0}: refusing to overwrite existing domain"
25 fi
Make a clone.
./domain_clone.sh clone
Console Access
Remove console access by editing the domain.
Memory
Increase or decrease amount of memory by editing the domain.
Guest OS
Continue by configuring the editing the domain.