gistfile1.sh

$ knife ec2 server create \
        --region eu-west-1 \
        --availability-zone eu-west-1a \
        --node-name foo \
        --flavor t1.micro \
        --image ami-ab6170df \
        --identity-file ~/.ssh/aws.pem \
        --run-list "role[database]" \
        --ssh-user ubuntu
ERROR: Excon::Errors::BadRequest: Expected(200) <=> Actual(400 Bad Request)