/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.processors.gcp.credentials.factory.strategies;
import com.google.auth.oauth2.ComputeEngineCredentials;
import com.google.auth.oauth2.GoogleCredentials;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.processors.gcp.credentials.factory.CredentialPropertyDescriptors;
import java.io.IOException;
import java.util.Map;
/**
* Supports Google Compute Engine credentials. Fetches access tokens from the Google Compute Engine metadata server.
*
* @see <a href="https://cloud.google.com/compute/docs/access/create-enable-service-accounts-for-instances">
* Service Accounts for Instances</a>
*/
public class ComputeEngineCredentialsStrategy extends AbstractBooleanCredentialsStrategy {
public ComputeEngineCredentialsStrategy() {
super("Compute Engine Credentials", CredentialPropertyDescriptors.USE_COMPUTE_ENGINE_CREDENTIALS);
}
@Override
public GoogleCredentials getGoogleCredentials(Map<PropertyDescriptor, String> properties) throws IOException {
return new ComputeEngineCredentials();
}
}