import * as pulumi from "@pulumi/pulumi";
/**
 * Provides access to available Google Kubernetes Engine versions in a zone or region for a given project.
 *
 * To get more information about GKE versions, see:
 *   * [The API reference](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations/getServerConfig)
 *
 * > If you are using the `gcp.container.getEngineVersions` datasource with a
 * regional cluster, ensure that you have provided a region as the `location` to
 * the datasource. A region can have a different set of supported versions than
 * its component zones, and not all zones in a region are guaranteed to
 * support the same version.
 *
 * ## Example Usage
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as gcp from "@pulumi/gcp";
 *
 * const central1b = gcp.container.getEngineVersions({
 *     location: "us-central1-b",
 *     versionPrefix: "1.12.",
 * });
 * const foo = new gcp.container.Cluster("foo", {
 *     name: "test-cluster",
 *     location: "us-central1-b",
 *     nodeVersion: central1b.then(central1b => central1b.latestNodeVersion),
 *     initialNodeCount: 1,
 * });
 * export const stableChannelDefaultVersion = central1b.then(central1b => central1b.releaseChannelDefaultVersion?.STABLE);
 * export const stableChannelLatestVersion = central1b.then(central1b => central1b.releaseChannelLatestVersion?.STABLE);
 * ```
 */
export declare function getEngineVersions(args?: GetEngineVersionsArgs, opts?: pulumi.InvokeOptions): Promise<GetEngineVersionsResult>;
/**
 * A collection of arguments for invoking getEngineVersions.
 */
export interface GetEngineVersionsArgs {
    /**
     * The location (region or zone) to list versions for.
     * Must exactly match the location the cluster will be deployed in, or listed
     * versions may not be available. If `location`, `region`, and `zone` are not
     * specified, the provider-level zone must be set and is used instead.
     */
    location?: string;
    /**
     * ID of the project to list available cluster versions for. Should match the project the cluster will be deployed to.
     * Defaults to the project that the provider is authenticated with.
     */
    project?: string;
    /**
     * If provided, the provider will only return versions
     * that match the string prefix. For example, `1.11.` will match all `1.11` series
     * releases. Since this is just a string match, it's recommended that you append a
     * `.` after minor versions to ensure that prefixes such as `1.1` don't match
     * versions like `1.12.5-gke.10` accidentally. See [the docs on versioning schema](https://cloud.google.com/kubernetes-engine/versioning-and-upgrades#versioning_scheme)
     * for full details on how version strings are formatted.
     */
    versionPrefix?: string;
}
/**
 * A collection of values returned by getEngineVersions.
 */
export interface GetEngineVersionsResult {
    /**
     * Version of Kubernetes the service deploys by default.
     */
    readonly defaultClusterVersion: string;
    /**
     * The provider-assigned unique ID for this managed resource.
     */
    readonly id: string;
    /**
     * The latest version available in the given zone for use with master instances.
     */
    readonly latestMasterVersion: string;
    /**
     * The latest version available in the given zone for use with node instances.
     */
    readonly latestNodeVersion: string;
    readonly location?: string;
    readonly project?: string;
    /**
     * A map from a release channel name to the channel's default version. See the docs on [available release channel names](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations.clusters#Cluster.Channel_1) for more details.
     */
    readonly releaseChannelDefaultVersion: {
        [key: string]: string;
    };
    /**
     * A map from a release channel name to the channel's latest version. See the docs on [available release channel names](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations.clusters#Cluster.Channel_1) for more details.
     */
    readonly releaseChannelLatestVersion: {
        [key: string]: string;
    };
    /**
     * A list of versions available in the given zone for use with master instances.
     */
    readonly validMasterVersions: string[];
    /**
     * A list of versions available in the given zone for use with node instances.
     */
    readonly validNodeVersions: string[];
    readonly versionPrefix?: string;
}
/**
 * Provides access to available Google Kubernetes Engine versions in a zone or region for a given project.
 *
 * To get more information about GKE versions, see:
 *   * [The API reference](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations/getServerConfig)
 *
 * > If you are using the `gcp.container.getEngineVersions` datasource with a
 * regional cluster, ensure that you have provided a region as the `location` to
 * the datasource. A region can have a different set of supported versions than
 * its component zones, and not all zones in a region are guaranteed to
 * support the same version.
 *
 * ## Example Usage
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as gcp from "@pulumi/gcp";
 *
 * const central1b = gcp.container.getEngineVersions({
 *     location: "us-central1-b",
 *     versionPrefix: "1.12.",
 * });
 * const foo = new gcp.container.Cluster("foo", {
 *     name: "test-cluster",
 *     location: "us-central1-b",
 *     nodeVersion: central1b.then(central1b => central1b.latestNodeVersion),
 *     initialNodeCount: 1,
 * });
 * export const stableChannelDefaultVersion = central1b.then(central1b => central1b.releaseChannelDefaultVersion?.STABLE);
 * export const stableChannelLatestVersion = central1b.then(central1b => central1b.releaseChannelLatestVersion?.STABLE);
 * ```
 */
export declare function getEngineVersionsOutput(args?: GetEngineVersionsOutputArgs, opts?: pulumi.InvokeOutputOptions): pulumi.Output<GetEngineVersionsResult>;
/**
 * A collection of arguments for invoking getEngineVersions.
 */
export interface GetEngineVersionsOutputArgs {
    /**
     * The location (region or zone) to list versions for.
     * Must exactly match the location the cluster will be deployed in, or listed
     * versions may not be available. If `location`, `region`, and `zone` are not
     * specified, the provider-level zone must be set and is used instead.
     */
    location?: pulumi.Input<string>;
    /**
     * ID of the project to list available cluster versions for. Should match the project the cluster will be deployed to.
     * Defaults to the project that the provider is authenticated with.
     */
    project?: pulumi.Input<string>;
    /**
     * If provided, the provider will only return versions
     * that match the string prefix. For example, `1.11.` will match all `1.11` series
     * releases. Since this is just a string match, it's recommended that you append a
     * `.` after minor versions to ensure that prefixes such as `1.1` don't match
     * versions like `1.12.5-gke.10` accidentally. See [the docs on versioning schema](https://cloud.google.com/kubernetes-engine/versioning-and-upgrades#versioning_scheme)
     * for full details on how version strings are formatted.
     */
    versionPrefix?: pulumi.Input<string>;
}