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batch-helloworld.rs
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batch-helloworld.rs
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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
use aws_config::meta::region::RegionProviderChain;
use aws_sdk_batch::{Client, Error, Region, PKG_VERSION};
use structopt::StructOpt;
#[derive(Debug, StructOpt)]
struct Opt {
/// The AWS Region.
#[structopt(short, long)]
region: Option<String>,
/// Whether to display additional information.
#[structopt(short, long)]
verbose: bool,
}
// Lists your AWS Batch compute environments.
// snippet-start:[batch.rust.batch-helloworld]
async fn show_envs(client: &Client) -> Result<(), Error> {
let rsp = client.describe_compute_environments().send().await?;
let compute_envs = rsp.compute_environments().unwrap_or_default();
println!("Found {} compute environments:", compute_envs.len());
for env in compute_envs {
let arn = env.compute_environment_arn().unwrap_or_default();
let name = env.compute_environment_name().unwrap_or_default();
println!(" Name : {}", name);
println!(" ARN: {}", arn);
println!();
}
Ok(())
}
// snippet-end:[batch.rust.batch-helloworld]
/// Lists the names and the ARNs of your AWS Batch compute environments in the Region.
/// # Arguments
///
/// * `[-r REGION]` - The Region in which the client is created.
/// If not supplied, uses the value of the **AWS_REGION** environment variable.
/// If the environment variable is not set, defaults to **us-west-2**.
/// * `[-v]` - Whether to display additional information.
#[tokio::main]
async fn main() -> Result<(), Error> {
tracing_subscriber::fmt::init();
let Opt { region, verbose } = Opt::from_args();
let region_provider = RegionProviderChain::first_try(region.map(Region::new))
.or_default_provider()
.or_else(Region::new("us-west-2"));
println!();
if verbose {
println!("Batch client version: {}", PKG_VERSION);
println!(
"Region: {}",
region_provider.region().await.unwrap().as_ref()
);
println!();
}
let shared_config = aws_config::from_env().region(region_provider).load().await;
let client = Client::new(&shared_config);
show_envs(&client).await
}