etcd

use opendal::Operator;

let operator = Operator::via_iter("etcd", [
    // network address of the Etcd services.
    // Use HTTPS endpoints for TLS. Set `ca_path` to trust a custom certificate authority.
    // Client authentication additionally requires both `cert_path` and `key_path`.
    // e.g. "127.0.0.1:23790,127.0.0.1:23791,127.0.0.1:23792" or "http://127.0.0.1:23790,http://127.0.0.1:23791,http://127.0.0.1:23792" or "https://127.0.0.1:23790,https://127.0.0.1:23791,https://127.0.0.1:23792"
    //
    // default is "http://127.0.0.1:2379"
    // ("endpoints".to_string(), "...".to_string()),

    // the username to connect etcd service.
    //
    // default is None
    // ("username".to_string(), "...".to_string()),

    // the password for authentication
    //
    // default is None
    // ("password".to_string(), "...".to_string()),

    // the working directory of the etcd service. Can be "/path/to/dir"
    //
    // default is "/"
    // ("root".to_string(), "...".to_string()),

    // PEM certificate authority file used to verify the server.
    // Enables TLS independently of `cert_path` and `key_path`.
    //
    // default is None
    // ("ca_path".to_string(), "...".to_string()),

    // PEM client certificate file used for mutual TLS.
    // Must be configured together with `key_path`.
    //
    // default is None
    // ("cert_path".to_string(), "...".to_string()),

    // PEM client private key file used for mutual TLS.
    // Must be configured together with `cert_path`.
    //
    // default is None
    // ("key_path".to_string(), "...".to_string()),

    // the maximum size in bytes of a gRPC response that the etcd client decodes.
    //
    // Set this to read values larger than the etcd client's own limit. The etcd
    // server must also allow responses of that size.
    //
    // Refer to [`etcd_client::KvClient::max_decoding_message_size`](https://docs.rs/etcd-client/latest/etcd_client/struct.KvClient.html#method.max_decoding_message_size)
    //
    // default is None, which keeps the etcd client default of 4 MiB
    // ("max_decoding_message_size".to_string(), "1000".to_string()),
])?;