import * as iam from '@aws-cdk/aws-iam';
import { OperatingSystemType } from '../machine-image';
import { UserData } from '../user-data';
/**
 * The type of the init element.
 */
export declare enum InitElementType {
    PACKAGE = "PACKAGE",
    GROUP = "GROUP",
    USER = "USER",
    SOURCE = "SOURCE",
    FILE = "FILE",
    COMMAND = "COMMAND",
    SERVICE = "SERVICE"
}
/**
 * The platform to which the init template applies.
 */
export declare enum InitPlatform {
    WINDOWS = "WINDOWS",
    LINUX = "LINUX"
}
/**
 * Options for attach a CloudFormationInit to a resource
 */
export interface AttachInitOptions {
    /**
     * Instance role of the consuming instance or fleet
     */
    readonly instanceRole: iam.IRole;
    /**
     * OS Platform the init config will be used for
     */
    readonly platform: OperatingSystemType;
    /**
     * UserData to add commands to
     */
    readonly userData: UserData;
    /**
     * ConfigSet to activate
     *
     * @default ['default']
     */
    readonly configSets?: string[];
    /**
     * Whether to embed a hash into the userData
     *
     * If `true` (the default), a hash of the config will be embedded into the
     * UserData, so that if the config changes, the UserData changes and
     * the instance will be replaced.
     *
     * If `false`, no such hash will be embedded, and if the CloudFormation Init
     * config changes nothing will happen to the running instance.
     *
     * @default true
     */
    readonly embedFingerprint?: boolean;
    /**
     * Print the results of running cfn-init to the Instance System Log
     *
     * By default, the output of running cfn-init is written to a log file
     * on the instance. Set this to `true` to print it to the System Log
     * (visible from the EC2 Console), `false` to not print it.
     *
     * (Be aware that the system log is refreshed at certain points in
     * time of the instance life cycle, and successful execution may
     * not always show up).
     *
     * @default true
     */
    readonly printLog?: boolean;
    /**
     * Don't fail the instance creation when cfn-init fails
     *
     * You can use this to prevent CloudFormation from rolling back when
     * instances fail to start up, to help in debugging.
     *
     * @default false
     */
    readonly ignoreFailures?: boolean;
}