This is a set of very small wrappers around uvtool to set up development VMs
just how I like them.
In particular, at the moment, this means:
- using ubuntu cloud images
- installing
avahi-daemonfor*.localmDNS - configuring a passthrough filesystem with overlayfs for host/guest code sharing
Install prerequisites:
sudo apt-get install uvtool-libvirt xmlstarlet
Download appropriate cloud images. Example:
uvt-simplestreams-libvirt sync release=precise arch=amd64
By default, the NAT bridge has access to everything your host machine has access to, including secure VPNs. To make this not the case, choose a specific network device as safe and modify the network config appropriately:
virsh net-edit default
Then change <forward mode='nat'> to include dev="wlan0" (or whatever
device) and restart the network:
virsh net-destroy default
virsh net-start default
This should only need to be done once as all the guests by default will share that properly configured network from then on.
The script is designed to work with Ubuntu Cloud Images that have a default
user of ubuntu.
The passthrough filesystem it configures will map /home/$USER/src on your
host OS read-only to /usr/local/src in the guest. The guest will then use
overlayfs to put a read-write overlay in /home/ubuntu/src allowing build
artifacts etc to live in the vm.
To create a VM, specify the release and the name of the domain:
./create-dev-vm.sh precise testvm
Once that's done, you can log in with SSH
uvt-kvm ssh testvm
or
ssh ubuntu@testvm.local
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