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feat: use default provider chains to enable support for sts assume #422

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Merged
jmt-lab merged 1 commit into from
Jan 12, 2026
Merged

feat: use default provider chains to enable support for sts assume #422

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73 changes: 39 additions & 34 deletions src/bin/coldsnap/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ snapshots.
*/

use argh::FromArgs;
use aws_config::default_provider::credentials::DefaultCredentialsChain;
use aws_config::default_provider::region::DefaultRegionChain;
use aws_sdk_ebs::types::Tag;
use aws_sdk_ebs::Client as EbsClient;
use aws_sdk_ec2::Client as Ec2Client;
Expand Down Expand Up @@ -168,49 +170,52 @@ async fn build_client_config(
profile: Option<String>,
endpoint: Option<String>,
) -> SdkConfig {
let config: aws_config::ConfigLoader = match (region, &profile) {
(Some(region), _) => {
// Region option passed in
aws_config::from_env().region(Region::new(region))
}
(None, Some(profile)) => {
// Take region from profile
aws_config::from_env().region(
aws_config::profile::ProfileFileRegionProvider::builder()
let app_name =
AppName::new(format!("coldsnap-{}", env!("CARGO_PKG_VERSION"))).expect("valid app name");
let mut config = aws_config::from_env().app_name(app_name);

config = match (region, &profile) {
(Some(region), Some(profile)) => {
let region = Region::new(region);
config.region(region.clone()).credentials_provider(
DefaultCredentialsChain::builder()
.profile_name(profile)
.build(),
.region(region.clone())
.build()
.await,
)
}
(None, None) => {
// No region or profile passed in, use defaults
aws_config::from_env()
(Some(region), None) => {
let region = Region::new(region);
config.region(region.clone()).credentials_provider(
DefaultCredentialsChain::builder()
.region(region.clone())
.build()
.await,
)
}
};

let config = if let Some(profile) = &profile {
// Add profile credential provider
config.credentials_provider(
aws_config::profile::ProfileFileCredentialsProvider::builder()
(None, Some(profile)) => {
let region = DefaultRegionChain::builder()
.profile_name(profile)
.build(),
)
} else {
// Keep config unchanged
config
};

let config: aws_config::ConfigLoader = match endpoint {
Some(endpoint) => config.endpoint_url(endpoint),
None => {
// Keep config the same
config
.build()
.region()
.await;
config.region(region.clone()).credentials_provider(
DefaultCredentialsChain::builder()
.profile_name(profile)
.region(region.clone())
.build()
.await,
)
}
(None, None) => config,
};

let app_name =
AppName::new(format!("coldsnap-{}", env!("CARGO_PKG_VERSION"))).expect("valid app name");
if let Some(endpoint) = &endpoint {
config = config.endpoint_url(endpoint);
}

config.app_name(app_name).load().await
config.load().await
}

/// Initializes the logger and sets logging level based on input.
Expand Down