Docker on Digitalocean
We're running Ubuntu 13.04 (Digitalocean image id 350076) due to the 3.8 kernel.
This is an example for running Docker on Digitalocean.
Supply your digitalocean API id and key with the following variables:
export DIGITALOCEAN_API_KEY=key
export DIGITALOCEAN_CLIENT_ID=client_id
Then run the following command:
packer build docker.json