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[filesystem] Support AssumeRole STS for RustFS #2989

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[filesystem] Support AssumeRole STS for RustFS #2989

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4351e0a
[filesystem] Support AssumeRole STS for RustFS
fresh-borzoni Apr 3, 2026
bae5026
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fresh-borzoni Apr 4, 2026
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77 changes: 62 additions & 15 deletions ...ems/fluss-fs-s3/src/main/java/org/apache/fluss/fs/s3/token/S3DelegationTokenProvider.java
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Original file line number Diff line number Diff line change
Expand Up @@ -22,17 +22,23 @@

import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.client.builder.AwsClientBuilder;
import com.amazonaws.services.securitytoken.AWSSecurityTokenService;
import com.amazonaws.services.securitytoken.AWSSecurityTokenServiceClientBuilder;
import com.amazonaws.services.securitytoken.model.AssumeRoleRequest;
import com.amazonaws.services.securitytoken.model.AssumeRoleResult;
import com.amazonaws.services.securitytoken.model.Credentials;
import com.amazonaws.services.securitytoken.model.GetSessionTokenResult;
import org.apache.hadoop.conf.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.annotation.Nullable;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import static org.apache.fluss.utils.Preconditions.checkNotNull;

Expand All @@ -47,10 +53,15 @@ public class S3DelegationTokenProvider {
private static final String REGION_KEY = "fs.s3a.region";
private static final String ENDPOINT_KEY = "fs.s3a.endpoint";

private static final String ROLE_ARN_KEY = "fs.s3a.assumed.role.arn";
private static final String STS_ENDPOINT_KEY = "fs.s3a.assumed.role.sts.endpoint";

private final String scheme;
private final String region;
private final String accessKey;
private final String secretKey;
@Nullable private final String roleArn;
@Nullable private final String stsEndpoint;
private final Map<String, String> additionInfos;

public S3DelegationTokenProvider(String scheme, Configuration conf) {
Expand All @@ -59,6 +70,8 @@ public S3DelegationTokenProvider(String scheme, Configuration conf) {
checkNotNull(region, "Region is not set.");
this.accessKey = conf.get(ACCESS_KEY_ID);
this.secretKey = conf.get(ACCESS_KEY_SECRET);
this.roleArn = conf.get(ROLE_ARN_KEY);
this.stsEndpoint = conf.get(STS_ENDPOINT_KEY);
this.additionInfos = new HashMap<>();
for (String key : Arrays.asList(REGION_KEY, ENDPOINT_KEY)) {
if (conf.get(key) != null) {
Expand All @@ -68,25 +81,59 @@ public S3DelegationTokenProvider(String scheme, Configuration conf) {
}

public ObtainedSecurityToken obtainSecurityToken() {
LOG.info("Obtaining session credentials token with access key: {}", accessKey);
AWSSecurityTokenService stsClient = buildStsClient();
try {
Credentials credentials;

if (roleArn != null) {
LOG.info(
"Obtaining session credentials via AssumeRole with access key: {}, role: {}",
accessKey,
roleArn);
AssumeRoleRequest request =
new AssumeRoleRequest()
.withRoleArn(roleArn)
.withRoleSessionName("fluss-" + UUID.randomUUID());
AssumeRoleResult result = stsClient.assumeRole(request);
credentials = result.getCredentials();
} else {
LOG.info(
"Obtaining session credentials via GetSessionToken with access key: {}",
accessKey);
GetSessionTokenResult result = stsClient.getSessionToken();
credentials = result.getCredentials();
}

AWSSecurityTokenService stsClient =
LOG.info(
"Session credentials obtained successfully with access key: {} expiration: {}",
credentials.getAccessKeyId(),
credentials.getExpiration());

return new ObtainedSecurityToken(
scheme,
toJson(credentials),
credentials.getExpiration().getTime(),
additionInfos);
} finally {
stsClient.shutdown();
}
}

private AWSSecurityTokenService buildStsClient() {
AWSSecurityTokenServiceClientBuilder builder =
AWSSecurityTokenServiceClientBuilder.standard()
.withRegion(region)
.withCredentials(
new AWSStaticCredentialsProvider(
new BasicAWSCredentials(accessKey, secretKey)))
.build();
GetSessionTokenResult sessionTokenResult = stsClient.getSessionToken();
Credentials credentials = sessionTokenResult.getCredentials();

LOG.info(
"Session credentials obtained successfully with access key: {} expiration: {}",
credentials.getAccessKeyId(),
credentials.getExpiration());

return new ObtainedSecurityToken(
scheme, toJson(credentials), credentials.getExpiration().getTime(), additionInfos);
new BasicAWSCredentials(accessKey, secretKey)));

if (stsEndpoint != null) {
builder.withEndpointConfiguration(
new AwsClientBuilder.EndpointConfiguration(stsEndpoint, region));
} else {
builder.withRegion(region);
}

return builder.build();
}

private byte[] toJson(Credentials credentials) {
Expand Down
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