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KVM-Manager
Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Date: 2009-10-08 11:22:14-0400
This is a small set of scripts to make it relatively easy to manage a
stable of kvm instances in a fairly secure and isolated fashion.
The basic model is to use runit to supervise each KVM instance, with a
single, non-privileged user account for each instance.
Dependencies:
runit : for system supervision
uml-utilities : for tunctl for the tun/tap interface
kvm : for the virtual machine emulator
screen : for the detached, logged serial console
Recommendations:
openssh-server : i've been using ssh to access the vm's serial console
Before you begin, you may want to prepare your system by doing the following:
* Copy di-maker, kvm-manager, and kvm-creator into /usr/local/sbin
* Make the directory /usr/local/share/ISOs
* Create a serial console enabled debian installer.
* cd /usr/local/share/ISOs
* di-maker > d-i.iso
A typical workflow to start an installer is:
kvm-creator create $GUESTNAME $VG [$DISKSIZE [$RAM [$TAP [$MAC] ] ] ]
# set up boot media for the host ("put the installer CD in the drive"):
ln -s /usr/local/share/ISOs/d-i.iso /home/$GUESTNAME/vms/$GUESTNAME/cd.iso
# set up access to the account:
mkdir -p /home/$GUESTNAME/.ssh
cat ~/.ssh/authorized_keys >> /home/$GUESTNAME/.ssh/authorized_keys
# start up the host
update-service --add /etc/sv/kvm/$GUESTNAME
To access the guest's serial console, do:
ssh -t $GUESTNAME@host.machine screen -x $GUESTNAME
trouble getting a serial console-enabled debian
installer ISO? try using the di-maker script.
All patches, fixes, suggestions welcome!
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