#This format takes into account the following and formats properly to connect to the instance:
# - Using a specific private
# - Specify the correct user
# - Adding sshpass variable for authentication
# - Have password protected key

    - name: add new instance to hosts
      add_host:
        hostname: "{{ item.public_ip }}"
        ansible_ssh_private_key_file: ~/.ssh/jfrap-web2
        ansible_user: "ec2-user"
        ansible_ssh_pass: "{{ sshpass }}"
        groupname: awslinux
      with_items: "{{ ec2.instances }}"