908c0c630a6c7c6e35b7bb0e172d41372bfb309d,python/ray/autoscaler/aws/config.py,,_configure_iam_role,#Any#,95

Before Change

    profile = _get_instance_profile(DEFAULT_RAY_INSTANCE_PROFILE, config)

    if profile is None:
        logger.info("_configure_iam_role: "
                    "Creating new instance profile {}".format(
                        DEFAULT_RAY_INSTANCE_PROFILE))
        client = _client("iam", config)
        client.create_instance_profile(
            InstanceProfileName=DEFAULT_RAY_INSTANCE_PROFILE)
        profile = _get_instance_profile(DEFAULT_RAY_INSTANCE_PROFILE, config)
        time.sleep(15)  // wait for propagation

    assert profile is not None, "Failed to create instance profile"

    if not profile.roles:
        role = _get_role(DEFAULT_RAY_IAM_ROLE, config)
        if role is None:
            logger.info("_configure_iam_role: "
                        "Creating new role {}".format(DEFAULT_RAY_IAM_ROLE))
            iam = _resource("iam", config)
            iam.create_role(
                RoleName=DEFAULT_RAY_IAM_ROLE,
                AssumeRolePolicyDocument=json.dumps({

After Change

def _configure_iam_role(config):
    if "IamInstanceProfile" in config["head_node"]:
        _set_config_info(head_instance_profile_src="config")
        return config
    _set_config_info(head_instance_profile_src="default")

    profile = _get_instance_profile(DEFAULT_RAY_INSTANCE_PROFILE, config)

Instances