Check to see if an instance profile exists.

    CLI Example:

    .. code-block:: bash

        salt myminion boto_iam.instance_profile_exists myiprofile

def instance_profile_exists(name, region=None, key=None, keyid=None,
                            profile=None):
    '''
    Check to see if an instance profile exists.

    CLI Example:

    .. code-block:: bash

        salt myminion boto_iam.instance_profile_exists myiprofile
    '''
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)

    try:
        # Boto weirdly returns an exception here if an instance profile doesn't
        # exist.
        conn.get_instance_profile(name)
        return True
    except boto.exception.BotoServerError:
        return False