title: getting "skipping: no hosts matched" with ansible playbook
body: <p>my below ansible (2.1.1.0) playbook is throwing "skipping: no hosts matched" error when playing for host [ec2-test]. The ansible hosts file has the fqdn of the newly created instance added. It runs fine if if i re run my playbook second time. but 1st time running throws no hosts matched error :(</p>
  
  <p>my playbook:</p>
  
  <pre><code>  ---
   - name: Provision an EC2 instance
     hosts: localhost
     connection: local
     gather_facts: no
     become: False
     vars_files:
     - awsdetails.yml
     tasks:
      - name: Launch the new EC2 Instance
        ec2:
         aws_access_key: "{{ aws_id }}"
         aws_secret_key: "{{ aws_key }}"
         group_id: "{{ security_group_id }}"
         instance_type: "{{ instance_type }}"
         image: "{{ image }}"
         key_name: "{{ ssh_keyname }}"
         wait: yes
         region: "{{ region }}"
         count: 1
        register: ec2
      - name: Update the ansible hosts file with new IP address
        local_action: lineinfile dest="/etc/ansible/hosts" regexp={{ item.dns_name }} insertafter='\[ec2-test\]'line="{{item.dns_name}} ansible_ssh_private_key_file=/etc/ansible/e2-key-file.pem ansible_user=ec2-user"
        with_items: ec2.instances
      - name: Wait for SSH to come up
        wait_for: host={{ item.public_dns_name }} port=22 delay=60 timeout=320 state=started
        with_items: ec2.instances
   - name: playing ec2-test instances
     hosts: ec2-test
     gather_facts: no
  </code></pre>
  
  <p>my hosts file has these inventories</p>
  
  <pre><code>[localhost]
  localhost 
  ....
  [ec2-test]
  ec2-54-244-180-186.us-west-2.compute.amazonaws.com
  </code></pre>
  
  <p>Any idea why i am getting the skipping: no hosts matched error if showing up here? any help would be greatly appreciated</p>
  
  <p>Thanks!</p>