export type InternalCacheConfiguration = {
    /**
     * The cache service relies on Redis sample settings for Redis service (see also https://github.com/luin/ioredis)
     *
     * 1. using a single Redis database:
     *  * node:
     *    * host:
     *        The host on which Redis can be reached.
     *        Can take an IP address, an URI or a hostname
     *    * port:
     *        The port on which Redis is running its database:
     *          * (optional, deprecated) database:
     *        ID of the redis database (default: 0)
     *        NOTE: this option is deprecated and will be removed in Kuzzle v3.
     *        Use 'options.db' instead. If both options are set, then
     *        "options.db" will take precedence.
     *  * (optional) options:
     *    Redis specific options compatible with IORedis.
     *    See Redis client constructor available options:
     *    https://github.com/luin/ioredis/blob/master/API.md#new-redisport-host-options
     *
     * 2. using a master/slaves Redis instance with Redis sentinels
     *   (cf. http://redis.io/topics/sentinel):
     *  * node:
     *    * sentinels:
     *        array of sentinels instances:
     *          * host:
     *              Host name/address of the sentinel server
     *              Can be an IP address, an URI or a hostname
     *          * port:
     *              Network port opened by Redis on the sentinel server
     *    * name:
     *        Group of Redis instances composed of a master and one
     *        or more slaves
     *    * (optional, deprecated) database:
     *        ID of the redis database (default: 0)
     *        NOTE: this option is deprecated and will be removed in Kuzzle v3.
     *              Use 'options.db' instead. If both options are set, then
     *              "options.db" will take precedence.
     *  * (optional) options:
     *      Redis specific options compatible with IORedis.
     *      See Redis client constructor available options:
     *      https://github.com/luin/ioredis/blob/master/API.md#redis--eventemitter
     *
     * 3. using a redis cluster (cf. http://redis.io/topics/cluster-spec):
     *   * nodes: array of master nodes of the cluster
     *     * host:
     *         Host name/address of a redis cluster node
     *         Can be an IP address, an URI or a hostname
     *     * port:
     *        Network port opened by the redis cluster node
     *   * (optional, deprecated) database:
     *       ID of the redis database (default: 0)
     *       NOTE: this option is deprecated and will be removed in Kuzzle v3.
     *             Use 'options.db' instead. If both options are set, then
     *             "options.db" will take precedence.
     *   * (optional) options:
     *       Redis specific options compatible with IORedis.
     *       See Redis client constructor available options:
     *       https://github.com/luin/ioredis/blob/master/API.md#new-redisport-host-options
     *   * (optional) clusterOptions:
     *       Redis Cluster specific options compatible with IORedis.
     *       See Redis Cluster client constructor available options:
     *       https://github.com/luin/ioredis/blob/master/API.md#new-clusterstartupnodes-options
     *   * (optional) overrideDnsLookup:
     *       Only available when using a Redis Cluster config.
     *       Use with caution: if set to true, it makes Kuzzle skip DNS validation for TLS certificates
     *       This is the only way to connect to an AWS Elasticache Cluster with TLS encryption.
     *       See: https://github.com/luin/ioredis#special-note-aws-elasticache-clusters-with-tls
     */
    /**
     * @default 'redis'
     */
    backend: "redis";
    clusterOptions: {
        /**
         * @default true
         */
        enableReadyCheck: boolean;
    };
    /**
     * @default 0
     */
    database: number;
    node: {
        /**
         * @default "localhost"
         */
        host: string;
        /**
         * @default 6379
         */
        port: number;
    };
    /**
     * * (optional) options:
     *    Redis specific options compatible with IORedis.
     *    See Redis client constructor available options:
     *    https://github.com/luin/ioredis/blob/master/API.md#new-redisport-host-options
     *
     */
    options?: Record<string, unknown>;
    /**
     * Only available when using a Redis Cluster config.
     * Use with caution: if set to true, it makes Kuzzle skip DNS validation for TLS certificates
     * This is the only way to connect to an AWS Elasticache Cluster with TLS encryption.
     *  See: https://github.com/luin/ioredis#special-note-aws-elasticache-clusters-with-tls
     * @default false
     */
    overrideDnsLookup: boolean;
};