Vagrant getting started

ansible.cfg

[defaults]
host_key_checking = False

[ssh_connection]
ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s -o UserKnownHostsFile=/dev/null -o IdentitiesOnly=yes

inventory_vagrant

controller ansible_connection=local
node1      ansible_ssh_host=172.17.177.21 ansible_ssh_private_key_file=/vagrant/.vagrant/machines/node1/virtualbox/private_key
node2      ansible_ssh_host=172.17.177.22 ansible_ssh_private_key_file=/vagrant/.vagrant/machines/node2/virtualbox/private_key

[nodes]
node[1:2]

playbook.yml

---
- hosts: nodes
  remote_user: vagrant
  tasks:
    - name: test connection
      ping:
    - debug:
        var: inventory_hostname

Vagrantfile

Vagrant.configure("2") do |config|

  config.vm.box = "ubuntu/trusty64"

  config.vm.define "node1" do |machine|
    machine.vm.network "private_network", ip: "172.17.177.21"
    machine.vm.provider "virtualbox" do |v|
      v.name = "mynode1"
    end
  end

  config.vm.define "node2" do |machine|
    machine.vm.network "private_network", ip: "172.17.177.22"
    machine.vm.provider "virtualbox" do |v|
      v.name = "mynode2"
    end
  end

  config.vm.define 'controller' do |machine|
    machine.vm.network "private_network", ip: "172.17.177.11"
    machine.vm.provider "virtualbox" do |v|
      v.name = "mycontroller"
    end
    machine.vm.provision :ansible_local do |ansible|
      ansible.playbook       = "playbook.yml"
      ansible.verbose        = true
      ansible.install        = true
      ansible.limit          = "all" # or only "nodes" group, etc.
      ansible.inventory_path = "inventory/vagrant"
    end
  end
end