EBS direct API 的 AWS SDK 代码示例

async fn start(client: &Client, description: &str) -> Result<String, Error> {
    let snapshot = client
        .start_snapshot()
        .description(description)
        .encrypted(false)
        .volume_size(1)
        .send()
        .await?;

    Ok(snapshot.snapshot_id.unwrap())
}

async fn add_block(
    client: &Client,
    id: &str,
    idx: usize,
    block: Vec<u8>,
    checksum: &str,
) -> Result<(), Error> {
    client
        .put_snapshot_block()
        .snapshot_id(id)
        .block_index(idx as i32)
        .block_data(ByteStream::from(block))
        .checksum(checksum)
        .checksum_algorithm(ChecksumAlgorithm::ChecksumAlgorithmSha256)
        .data_length(EBS_BLOCK_SIZE as i32)
        .send()
        .await?;

    Ok(())
}

async fn finish(client: &Client, id: &str) -> Result<(), Error> {
    client
        .complete_snapshot()
        .changed_blocks_count(2)
        .snapshot_id(id)
        .send()
        .await?;

    println!("Snapshot ID {}", id);
    println!("The state is 'completed' when all of the modified blocks have been transferred to Amazon S3.");
    println!("Use the get-snapshot-state code example to get the state of the snapshot.");

    Ok(())
}