Examples with AWSCredentialsProviderChain com.amazonaws.auth.AWSCredentialsProviderChain used on opensource projects

Example 1 with AWSCredentialsProviderChain

use of com.amazonaws.auth.AWSCredentialsProviderChain in project alluxio by Alluxio.

the class S3AUnderFileSystem method createInstance.

/**
   * Constructs a new instance of {@link S3AUnderFileSystem}.
   *
   * @param uri the {@link AlluxioURI} for this UFS
   * @return the created {@link S3AUnderFileSystem} instance
   */
public static S3AUnderFileSystem createInstance(AlluxioURI uri) {
    String bucketName = uri.getHost();
    // Set the aws credential system properties based on Alluxio properties, if they are set
    if (Configuration.containsKey(PropertyKey.S3A_ACCESS_KEY)) {
        System.setProperty(SDKGlobalConfiguration.ACCESS_KEY_SYSTEM_PROPERTY, Configuration.get(PropertyKey.S3A_ACCESS_KEY));
    }
    if (Configuration.containsKey(PropertyKey.S3A_SECRET_KEY)) {
        System.setProperty(SDKGlobalConfiguration.SECRET_KEY_SYSTEM_PROPERTY, Configuration.get(PropertyKey.S3A_SECRET_KEY));
    }
    // Checks, in order, env variables, system properties, profile file, and instance profile
    AWSCredentialsProvider credentials = new AWSCredentialsProviderChain(new DefaultAWSCredentialsProviderChain());
    // Set the client configuration based on Alluxio configuration values
    ClientConfiguration clientConf = new ClientConfiguration();
    // Socket timeout
    clientConf.setSocketTimeout(Configuration.getInt(PropertyKey.UNDERFS_S3A_SOCKET_TIMEOUT_MS));
    // HTTP protocol
    if (Configuration.getBoolean(PropertyKey.UNDERFS_S3A_SECURE_HTTP_ENABLED)) {
        clientConf.setProtocol(Protocol.HTTPS);
    } else {
        clientConf.setProtocol(Protocol.HTTP);
    }
    // Proxy host
    if (Configuration.containsKey(PropertyKey.UNDERFS_S3_PROXY_HOST)) {
        clientConf.setProxyHost(Configuration.get(PropertyKey.UNDERFS_S3_PROXY_HOST));
    }
    // Proxy port
    if (Configuration.containsKey(PropertyKey.UNDERFS_S3_PROXY_PORT)) {
        clientConf.setProxyPort(Configuration.getInt(PropertyKey.UNDERFS_S3_PROXY_PORT));
    }
    int numAdminThreads = Configuration.getInt(PropertyKey.UNDERFS_S3_ADMIN_THREADS_MAX);
    int numTransferThreads = Configuration.getInt(PropertyKey.UNDERFS_S3_UPLOAD_THREADS_MAX);
    int numThreads = Configuration.getInt(PropertyKey.UNDERFS_S3_THREADS_MAX);
    if (numThreads < numAdminThreads + numTransferThreads) {
        LOG.warn("Configured s3 max threads: {} is less than # admin threads: {} plus transfer " + "threads {}. Using admin threads + transfer threads as max threads instead.");
        numThreads = numAdminThreads + numTransferThreads;
    }
    clientConf.setMaxConnections(numThreads);
    // Set client request timeout for all requests since multipart copy is used, and copy parts can
    // only be set with the client configuration.
    clientConf.setRequestTimeout(Configuration.getInt(PropertyKey.UNDERFS_S3A_REQUEST_TIMEOUT));
    AmazonS3Client amazonS3Client = new AmazonS3Client(credentials, clientConf);
    // Set a custom endpoint.
    if (Configuration.containsKey(PropertyKey.UNDERFS_S3_ENDPOINT)) {
        amazonS3Client.setEndpoint(Configuration.get(PropertyKey.UNDERFS_S3_ENDPOINT));
    }
    // Disable DNS style buckets, this enables path style requests.
    if (Configuration.getBoolean(PropertyKey.UNDERFS_S3_DISABLE_DNS_BUCKETS)) {
        S3ClientOptions clientOptions = S3ClientOptions.builder().setPathStyleAccess(true).build();
        amazonS3Client.setS3ClientOptions(clientOptions);
    }
    ExecutorService service = ExecutorServiceFactories.fixedThreadPoolExecutorServiceFactory("alluxio-s3-transfer-manager-worker", numTransferThreads).create();
    TransferManager transferManager = new TransferManager(amazonS3Client, service);
    TransferManagerConfiguration transferConf = new TransferManagerConfiguration();
    transferConf.setMultipartCopyThreshold(MULTIPART_COPY_THRESHOLD);
    transferManager.setConfiguration(transferConf);
    // Default to readable and writable by the user.
    short bucketMode = (short) 700;
    // There is no known account owner by default.
    String accountOwner = "";
    // if ACL enabled inherit bucket acl for all the objects.
    if (Configuration.getBoolean(PropertyKey.UNDERFS_S3A_INHERIT_ACL)) {
        String accountOwnerId = amazonS3Client.getS3AccountOwner().getId();
        // Gets the owner from user-defined static mapping from S3 canonical user
        // id to Alluxio user name.
        String owner = CommonUtils.getValueFromStaticMapping(Configuration.get(PropertyKey.UNDERFS_S3_OWNER_ID_TO_USERNAME_MAPPING), accountOwnerId);
        // If there is no user-defined mapping, use the display name.
        if (owner == null) {
            owner = amazonS3Client.getS3AccountOwner().getDisplayName();
        }
        accountOwner = owner == null ? accountOwnerId : owner;
        AccessControlList acl = amazonS3Client.getBucketAcl(bucketName);
        bucketMode = S3AUtils.translateBucketAcl(acl, accountOwnerId);
    }
    return new S3AUnderFileSystem(uri, amazonS3Client, bucketName, bucketMode, accountOwner, transferManager);
}