import * as pulumi from "@pulumi/pulumi";
/**
 * Attaches resource to a Hetzner Cloud Firewall.
 *
 * _Note_: only one `hcloud.FirewallAttachment` per Firewall is allowed.
 * Any resources that should be attached to that Firewall need to be
 * specified in that `hcloud.FirewallAttachment`.
 *
 * ## Example Usage
 *
 * ### Attach Servers
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as hcloud from "@pulumi/hcloud";
 *
 * const testServer = new hcloud.Server("test_server", {
 *     name: "test-server",
 *     serverType: "cx22",
 *     image: "ubuntu-20.04",
 * });
 * const basicFirewall = new hcloud.Firewall("basic_firewall", {name: "basic_firewall"});
 * const fwRef = new hcloud.FirewallAttachment("fw_ref", {
 *     firewallId: basicFirewall.id,
 *     serverIds: [testServer.id],
 * });
 * ```
 *
 * ### Attach Label Selectors
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as hcloud from "@pulumi/hcloud";
 *
 * const testServer = new hcloud.Server("test_server", {
 *     name: "test-server",
 *     serverType: "cx22",
 *     image: "ubuntu-20.04",
 *     labels: {
 *         "firewall-attachment": "test-server",
 *     },
 * });
 * const basicFirewall = new hcloud.Firewall("basic_firewall", {name: "basic_firewall"});
 * const fwRef = new hcloud.FirewallAttachment("fw_ref", {
 *     firewallId: basicFirewall.id,
 *     labelSelectors: ["firewall-attachment=test-server"],
 * });
 * ```
 */
export declare class FirewallAttachment extends pulumi.CustomResource {
    /**
     * Get an existing FirewallAttachment resource's state with the given name, ID, and optional extra
     * properties used to qualify the lookup.
     *
     * @param name The _unique_ name of the resulting resource.
     * @param id The _unique_ provider ID of the resource to lookup.
     * @param state Any extra arguments used during the lookup.
     * @param opts Optional settings to control the behavior of the CustomResource.
     */
    static get(name: string, id: pulumi.Input<pulumi.ID>, state?: FirewallAttachmentState, opts?: pulumi.CustomResourceOptions): FirewallAttachment;
    /**
     * Returns true if the given object is an instance of FirewallAttachment.  This is designed to work even
     * when multiple copies of the Pulumi SDK have been loaded into the same process.
     */
    static isInstance(obj: any): obj is FirewallAttachment;
    /**
     * ID of the firewall the resources
     * should be attached to.
     */
    readonly firewallId: pulumi.Output<number>;
    /**
     * List of label selectors used to
     * select resources to attach to the firewall.
     */
    readonly labelSelectors: pulumi.Output<string[] | undefined>;
    /**
     * List of Server IDs to attach to the
     * firewall.
     */
    readonly serverIds: pulumi.Output<number[] | undefined>;
    /**
     * Create a FirewallAttachment resource with the given unique name, arguments, and options.
     *
     * @param name The _unique_ name of the resource.
     * @param args The arguments to use to populate this resource's properties.
     * @param opts A bag of options that control this resource's behavior.
     */
    constructor(name: string, args: FirewallAttachmentArgs, opts?: pulumi.CustomResourceOptions);
}
/**
 * Input properties used for looking up and filtering FirewallAttachment resources.
 */
export interface FirewallAttachmentState {
    /**
     * ID of the firewall the resources
     * should be attached to.
     */
    firewallId?: pulumi.Input<number>;
    /**
     * List of label selectors used to
     * select resources to attach to the firewall.
     */
    labelSelectors?: pulumi.Input<pulumi.Input<string>[]>;
    /**
     * List of Server IDs to attach to the
     * firewall.
     */
    serverIds?: pulumi.Input<pulumi.Input<number>[]>;
}
/**
 * The set of arguments for constructing a FirewallAttachment resource.
 */
export interface FirewallAttachmentArgs {
    /**
     * ID of the firewall the resources
     * should be attached to.
     */
    firewallId: pulumi.Input<number>;
    /**
     * List of label selectors used to
     * select resources to attach to the firewall.
     */
    labelSelectors?: pulumi.Input<pulumi.Input<string>[]>;
    /**
     * List of Server IDs to attach to the
     * firewall.
     */
    serverIds?: pulumi.Input<pulumi.Input<number>[]>;
}