This Vagrantfile works with vagrant-cloudstack v1.0.0 and v1.1.0, and vagrant 1.7.4

Vagrantfile

Vagrant.configure(2) do |config|
  config.vm.box = "csdummy" # From vagrant-cloudstack

  config.vm.provider :cloudstack do |cloudstack, override|
    override.nfs.functional = false
    cloudstack.api_key    = ENV['EXO_API_KEY']
    cloudstack.secret_key = ENV['EXO_SECRET_KEY']
    cloudstack.service_offering_name = "Micro"
    #cloudstack.service_offering_id = "71004023-bb72-4a97-b1e9-bc66dfce9470"
    cloudstack.security_group_names = ["default"]
    cloudstack.keypair = "default"
    cloudstack.ssh_key = "~/.ssh/id_rsa"
    cloudstack.ssh_user = "root"
    cloudstack.network_type = "Basic"
    cloudstack.host = "api.exoscale.ch"
    cloudstack.path = "/compute"
    cloudstack.port = "443"
    cloudstack.scheme = "https"
    cloudstack.template_id = "cdefccdb-996d-41c4-9ffc-7e493ba24957"
    #cloudstack.network_id = "00304a04-c7ea-4e77-a786-18bc64347bf7"
    cloudstack.zone_id = "1128bd56-b4d9-4ac6-a7b9-c715b187ce11"
  end

end


#$ vagrant up --provider=cloudstack
#Bringing machine 'default' up with 'cloudstack' provider...
#==> default: Warning! The Cloudstack provider doesn't support any of the Vagrant
#==> default: high-level network configurations (`config.vm.network`). They
#==> default: will be silently ignored.
#==> default: Fetching name for zone with UUID '1128bd56-b4d9-4ac6-a7b9-c715b187ce11'
#==> default: Fetching UUID for service_offering with name 'Micro'
#==> default: Fetching name for template with UUID 'cdefccdb-996d-41c4-9ffc-7e493ba24957'
#==> default: Fetching UUID for security_group with name 'default'
#==> default: Launching an instance with the following settings...
#==> default:  -- Display Name: nicolasbrechet_vagrant_1446727081
#==> default:  -- Service offering: Micro (71004023-bb72-4a97-b1e9-bc66dfce9470)
#==> default:  -- Template: Linux Ubuntu 15.04 64-bit (cdefccdb-996d-41c4-9ffc-7e493ba24957)
#==> default:  -- Zone: ch-gva-2 (1128bd56-b4d9-4ac6-a7b9-c715b187ce11)
#==> default:  -- Keypair: default
#==> default:  -- Security Group: default (df89cc01-55b9-4222-9f70-d1ddad9e33ef)
#==> default: Waiting for instance to become "ready"...
#==> default: Waiting for SSH to become available...
#==> default: Machine is booted and ready for use!
#==> default: Rsyncing folder: /Users/nicolasbrechet/exo/vagrant/ => /vagrant