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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.cloud.aws;
import com.amazonaws.auth.STSAssumeRoleSessionCredentialsProvider;
import com.amazonaws.services.securitytoken.AWSSecurityTokenService;
import com.amazonaws.services.securitytoken.AWSSecurityTokenServiceClientBuilder;
import com.amazonaws.services.simplesystemsmanagement.AWSSimpleSystemsManagement;
import com.amazonaws.services.simplesystemsmanagement.AWSSimpleSystemsManagementClient;
import com.amazonaws.services.simplesystemsmanagement.model.GetParametersRequest;
import com.amazonaws.services.simplesystemsmanagement.model.GetParametersResult;
import com.google.inject.Inject;
import com.yahoo.cloud.config.SecretStoreConfig;
import com.yahoo.component.AbstractComponent;
import com.yahoo.container.jdisc.secretstore.SecretNotFoundException;
import com.yahoo.container.jdisc.secretstore.SecretStore;
/**
* @author mortent
*/
public class AwsParameterStore extends AbstractComponent implements SecretStore {
private final VespaAwsCredentialsProvider credentialsProvider;
private final SecretStoreConfig secretStoreConfig;
@Inject
public AwsParameterStore(SecretStoreConfig secretStoreConfig) {
this.secretStoreConfig = secretStoreConfig;
this.credentialsProvider = new VespaAwsCredentialsProvider();
}
@Override
public String getSecret(String key) {
for (var group : secretStoreConfig.groups()) {
AWSSecurityTokenService tokenService = AWSSecurityTokenServiceClientBuilder
.standard()
.withRegion(group.region())
.withCredentials(credentialsProvider)
.build();
STSAssumeRoleSessionCredentialsProvider assumeExtAccountRole = new STSAssumeRoleSessionCredentialsProvider
.Builder(toRoleArn(group.awsId(), group.role()), "vespa")
.withExternalId(group.externalId())
.withStsClient(tokenService)
.build();
AWSSimpleSystemsManagement client = AWSSimpleSystemsManagementClient.builder()
.withCredentials(assumeExtAccountRole)
.withRegion(group.region())
.build();
GetParametersRequest parametersRequest = new GetParametersRequest().withNames(key).withWithDecryption(true);
GetParametersResult parameters = client.getParameters(parametersRequest);
int count = parameters.getParameters().size();
if (count == 1) {
return parameters.getParameters().get(0).getValue();
} else if (count > 1) {
throw new RuntimeException("Found too many parameters, expected 1, but found " + count);
}
}
throw new SecretNotFoundException("Could not find secret " + key + " in any configured secret store");
}
@Override
public String getSecret(String key, int version) {
// TODO
return getSecret(key);
}
private String toRoleArn(String awsId, String role) {
return "arn:aws:iam::" + awsId + ":role/" + role;
}
}
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