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YARN-8873. [YARN-8811] Add CSI java-based client library. Contributed by Weiwei Yang.

This commit is contained in:
Sunil G 2018-10-23 11:46:06 +05:30
parent e3cca12048
commit 0efddd85f0
15 changed files with 1880 additions and 0 deletions
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19
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/dev-support/findbugs-exclude.xml Normal file
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<!--
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.
-->
<FindBugsFilter>
</FindBugsFilter>

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed 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. See accompanying LICENSE file.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>hadoop-yarn</artifactId>
<groupId>org.apache.hadoop</groupId>
<version>3.3.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>hadoop-yarn-csi</artifactId>
<name>Apache Hadoop YARN CSI</name>
<packaging>jar</packaging>
<properties>
<protobuf.version>3.6.1</protobuf.version>
<guava.version>20.0</guava.version>
<grpc.version>1.15.1</grpc.version>
<netty-all.version>4.1.27.Final</netty-all.version>
<os-maven-plugin.version>1.5.0.Final</os-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>${protobuf.version}</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>${netty-all.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-core</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<version>${grpc.version}</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<type>test-jar</type>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>${os-maven-plugin.version}</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<configuration>
<filesets>
<fileset>
<directory>target/</directory>
</fileset>
</filesets>
</configuration>
</plugin>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>${protobuf-maven-plugin.version}</version>
<configuration>
<protocArtifact>com.google.protobuf:protoc:3.6.1:exe:${os.detected.classifier}</protocArtifact>
<pluginId>grpc-java</pluginId>
<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.15.1:exe:${os.detected.classifier}</pluginArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>compile-custom</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${maven-shade-plugin.version}</version>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<relocations>
<relocation>
<pattern>io.grpc</pattern>
<shadedPattern>csi.io.grpc</shadedPattern>
</relocation>
<relocation>
<!-- this includes protobuf-java and guava libraries -->
<pattern>com.google</pattern>
<shadedPattern>csi.com.google</shadedPattern>
</relocation>
<relocation>
<pattern>io.netty</pattern>
<shadedPattern>csi.io.netty</shadedPattern>
</relocation>
</relocations>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer" />
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<!-- We need to rename the native library file in order to let shaded classes to load them -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<id>unpack</id>
<phase>package</phase>
<configuration>
<target>
<echo message="Unpack hadoop-yarn-csi jar file"/>
<unzip src="${project.build.directory}/${project.artifactId}-${project.version}.jar"
dest="${project.build.directory}/unpacked/"/>
<echo message="Append the shaded prefix to netty's native file in META-INF"/>
<move file="${project.build.directory}/unpacked/META-INF/native/libnetty_transport_native_epoll_x86_64.so"
tofile="${project.build.directory}/unpacked/META-INF/native/libcsi_netty_transport_native_epoll_x86_64.so" />
<echo message="Re-pack the jar"/>
<jar destfile="${project.build.directory}/${project.artifactId}-${project.version}.jar"
basedir="${project.build.directory}/unpacked"/>
</target>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.rat</groupId>
<artifactId>apache-rat-plugin</artifactId>
<configuration>
<excludes>
<exclude>target/generated-sources/**</exclude>
<exclude>target/surefire-reports/**</exclude>
<exclude>target/protoc-dependencies/**</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>

39
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/client/CsiClient.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import csi.v0.Csi.GetPluginInfoResponse;
import java.io.IOException;
/**
* General interface for a CSI client. This interface defines all APIs
* that CSI spec supports, including both identity/controller/node service
* APIs.
*/
public interface CsiClient {
/**
* Gets some basic info about the CSI plugin, including the driver name,
* version and optionally some manifest info.
* @return {@link GetPluginInfoResponse}
* @throws IOException
*/
GetPluginInfoResponse getPluginInfo() throws IOException;
}

51
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/client/CsiClientImpl.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import csi.v0.Csi.GetPluginInfoRequest;
import csi.v0.Csi.GetPluginInfoResponse;
import org.apache.hadoop.yarn.csi.utils.GrpcHelper;
import java.io.IOException;
import java.net.SocketAddress;
/**
* A CSI client implementation that communicates with a CSI driver via
* unix domain socket. It leverages gRPC blocking stubs to synchronize
* the call with CSI driver. CSI spec is designed as a set of synchronized
* APIs, in order to make the call idempotent for failure recovery,
* so the client does the same.
*/
public class CsiClientImpl implements CsiClient {
private final SocketAddress address;
public CsiClientImpl(String address) {
this.address = GrpcHelper.getSocketAddress(address);
}
@Override
public GetPluginInfoResponse getPluginInfo() throws IOException {
try (CsiGrpcClient client = CsiGrpcClient.newBuilder()
.setDomainSocketAddress(address).build()) {
GetPluginInfoRequest request = GetPluginInfoRequest.getDefaultInstance();
return client.createIdentityBlockingStub().getPluginInfo(request);
}
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/client/CsiGrpcClient.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import csi.v0.ControllerGrpc;
import csi.v0.IdentityGrpc;
import csi.v0.NodeGrpc;
import io.grpc.ManagedChannel;
import io.grpc.netty.NettyChannelBuilder;
import io.netty.channel.epoll.EpollDomainSocketChannel;
import io.netty.channel.epoll.EpollEventLoopGroup;
import io.netty.channel.unix.DomainSocketAddress;
import io.netty.util.concurrent.DefaultThreadFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.IOException;
import java.net.SocketAddress;
import java.util.concurrent.TimeUnit;
/**
* A CSI gRPC client, it connects a CSI driver via a given unix domain socket.
*/
public final class CsiGrpcClient implements AutoCloseable {
private static final Log LOG = LogFactory.getLog(CsiGrpcClient.class);
private final ManagedChannel channel;
private CsiGrpcClient(ManagedChannel channel) {
this.channel = channel;
}
public static GrpcClientBuilder newBuilder() {
return new GrpcClientBuilder();
}
/**
* The Grpc Client builder.
*/
public static class GrpcClientBuilder {
private SocketAddress socket;
public GrpcClientBuilder setDomainSocketAddress(SocketAddress address) {
this.socket = address;
return this;
}
private ManagedChannel getChannel(SocketAddress socketAddress)
throws IOException {
DefaultThreadFactory tf = new DefaultThreadFactory(
"yarn-csi-client-", true);
EpollEventLoopGroup loopGroup = new EpollEventLoopGroup(0, tf);
if (socketAddress instanceof DomainSocketAddress) {
ManagedChannel channel = NettyChannelBuilder.forAddress(socketAddress)
.channelType(EpollDomainSocketChannel.class)
.eventLoopGroup(loopGroup)
.usePlaintext()
.build();
return channel;
} else {
throw new IOException("Currently only unix domain socket is supported");
}
}
public CsiGrpcClient build() throws IOException {
ManagedChannel socketChannel = getChannel(socket);
return new CsiGrpcClient(socketChannel);
}
}
/**
* Shutdown the communication channel gracefully,
* wait for 5 seconds before it is enforced.
* @throws InterruptedException
*/
@Override
public void close() {
try {
this.channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOG.error("Failed to gracefully shutdown"
+ " gRPC communication channel in 5 seconds", e);
}
}
/**
* Creates a blocking stub for CSI identity plugin on the given channel.
* @return the blocking stub
*/
public IdentityGrpc.IdentityBlockingStub createIdentityBlockingStub() {
return IdentityGrpc.newBlockingStub(channel);
}
/**
* Creates a blocking stub for CSI controller plugin on the given channel.
* @return the blocking stub
*/
public ControllerGrpc.ControllerBlockingStub createControllerBlockingStub(){
return ControllerGrpc.newBlockingStub(channel);
}
/**
* Creates a blocking stub for CSI node plugin on the given channel.
* @return the blocking stub
*/
public NodeGrpc.NodeBlockingStub createNodeBlockingStub() {
return NodeGrpc.newBlockingStub(channel);
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/client/package-info.java Normal file
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/*
* 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.
*/
/**
* This package contains CSI client classes.
*/
package org.apache.hadoop.yarn.csi.client;

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/package-info.java Normal file
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/*
* 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.
*/
/**
* This package contains classes for CSI.
*/
package org.apache.hadoop.yarn.csi;

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/utils/GrpcHelper.java Normal file
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/**
* 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.hadoop.yarn.csi.utils;
import io.netty.channel.unix.DomainSocketAddress;
import java.io.File;
import java.net.SocketAddress;
/**
* Helper classes for gRPC utility functions.
*/
public final class GrpcHelper {
protected static final String UNIX_DOMAIN_SOCKET_PREFIX = "unix://";
private GrpcHelper() {
// hide constructor for utility class
}
public static SocketAddress getSocketAddress(String value) {
if (value.startsWith(UNIX_DOMAIN_SOCKET_PREFIX)) {
String filePath = value.substring(UNIX_DOMAIN_SOCKET_PREFIX.length());
File file = new File(filePath);
if (!file.isAbsolute()) {
throw new IllegalArgumentException(
"Unix domain socket file path must be absolute, file: " + value);
}
// Create the SocketAddress referencing the file.
return new DomainSocketAddress(file);
} else {
throw new IllegalArgumentException("Given address " + value
+ " is not a valid unix domain socket path");
}
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/java/org/apache/hadoop/yarn/csi/utils/package-info.java Normal file
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/*
* 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.
*/
/**
* This package contains utility classes for CSI.
*/
package org.apache.hadoop.yarn.csi.utils;

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/main/proto/csi.proto Normal file
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/test/java/org/apache/hadoop/yarn/csi/client/FakeCsiDriver.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import io.grpc.Server;
import io.grpc.netty.NettyServerBuilder;
import io.netty.channel.epoll.EpollEventLoopGroup;
import io.netty.channel.epoll.EpollServerDomainSocketChannel;
import org.apache.hadoop.yarn.csi.utils.GrpcHelper;
import java.io.IOException;
import java.util.logging.Logger;
/**
* A fake implementation of CSI driver.
* This is for testing purpose only.
*/
public class FakeCsiDriver {
private static final Logger LOG = Logger
.getLogger(FakeCsiDriver.class.getName());
private Server server;
private String socketAddress;
public FakeCsiDriver(String socketAddress) {
this.socketAddress = socketAddress;
}
public void start() throws IOException {
EpollEventLoopGroup group = new EpollEventLoopGroup();
server = NettyServerBuilder
.forAddress(GrpcHelper.getSocketAddress(socketAddress))
.channelType(EpollServerDomainSocketChannel.class)
.workerEventLoopGroup(group)
.bossEventLoopGroup(group)
.addService(new FakeCsiIdentityService())
.build();
server.start();
LOG.info("Server started, listening on " + socketAddress);
}
public void stop() {
if (server != null) {
server.shutdown();
LOG.info("Server has been shutdown");
}
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/test/java/org/apache/hadoop/yarn/csi/client/FakeCsiIdentityService.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import csi.v0.Csi.GetPluginInfoRequest;
import csi.v0.Csi.GetPluginInfoResponse;
import csi.v0.IdentityGrpc;
import io.grpc.stub.StreamObserver;
/**
* A fake implementation of CSI identity plugin gRPC service.
* This is for testing purpose only.
*/
public class FakeCsiIdentityService extends IdentityGrpc.IdentityImplBase {
@Override
public void getPluginInfo(GetPluginInfoRequest request,
StreamObserver<GetPluginInfoResponse> responseObserver) {
GetPluginInfoResponse response = GetPluginInfoResponse.newBuilder()
.setName("fake-csi-identity-service")
.setVendorVersion("0.1")
.build();
responseObserver.onNext(response);
responseObserver.onCompleted();
}
}

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/test/java/org/apache/hadoop/yarn/csi/client/TestCsiClient.java Normal file
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/**
* 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.hadoop.yarn.csi.client;
import csi.v0.Csi;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.test.GenericTestUtils;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
/**
* Test class for CSI client.
*/
public class TestCsiClient {
private static File testRoot = null;
private static String domainSocket = null;
private static FakeCsiDriver driver = null;
@BeforeClass
public static void setUp() throws IOException {
testRoot = GenericTestUtils.getTestDir("csi-test");
File socketPath = new File(testRoot, "csi.sock");
FileUtils.forceMkdirParent(socketPath);
domainSocket = "unix://" + socketPath.getAbsolutePath();
driver = new FakeCsiDriver(domainSocket);
}
@AfterClass
public static void tearDown() throws IOException {
if (testRoot != null) {
FileUtils.deleteDirectory(testRoot);
}
}
@Before
public void beforeMethod() {
// Skip tests on non-linux systems
String osName = System.getProperty("os.name").toLowerCase();
Assume.assumeTrue(osName.contains("nix") || osName.contains("nux"));
}
@Test
public void testIdentityService() throws IOException {
try {
driver.start();
CsiClient client = new CsiClientImpl(domainSocket);
Csi.GetPluginInfoResponse response = client.getPluginInfo();
Assert.assertEquals("fake-csi-identity-service", response.getName());
} finally {
driver.stop();
}
}
}

21
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/src/test/java/org/apache/hadoop/yarn/csi/client/package-info.java Normal file
View File

@ -0,0 +1,21 @@
/*
* 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.
*/
/**
* This package contains classes for CSI client library testing.
*/
package org.apache.hadoop.yarn.csi.client;

1
hadoop-yarn-project/hadoop-yarn/pom.xml
View File

@ -244,5 +244,6 @@
<module>hadoop-yarn-client</module>
<module>hadoop-yarn-registry</module>
<module>hadoop-yarn-ui</module>
<module>hadoop-yarn-csi</module>
</modules>
</project>