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* #369 Mark all long-living threads started by Testcontainers as daemons and group them * simplify the classpath logic * fixes * Add a line about the logs to CHANGELOG and explain the DaemonTest and why we fork
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304 changes: 304 additions & 0 deletions
304
...in/java/org/testcontainers/dockerclient/transport/TestcontainersDockerCmdExecFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,304 @@ | ||
| package org.testcontainers.dockerclient.transport; | ||
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| import com.github.dockerjava.api.command.DockerCmdExecFactory; | ||
| import com.github.dockerjava.core.AbstractDockerCmdExecFactory; | ||
| import com.github.dockerjava.core.DockerClientConfig; | ||
| import com.github.dockerjava.core.SSLConfig; | ||
| import com.github.dockerjava.core.WebTarget; | ||
| import com.github.dockerjava.netty.NettyWebTarget; | ||
| import io.netty.bootstrap.Bootstrap; | ||
| import io.netty.channel.*; | ||
| import io.netty.channel.epoll.EpollDomainSocketChannel; | ||
| import io.netty.channel.epoll.EpollEventLoopGroup; | ||
| import io.netty.channel.kqueue.KQueueDomainSocketChannel; | ||
| import io.netty.channel.kqueue.KQueueEventLoopGroup; | ||
| import io.netty.channel.nio.NioEventLoopGroup; | ||
| import io.netty.channel.socket.DuplexChannel; | ||
| import io.netty.channel.socket.SocketChannel; | ||
| import io.netty.channel.socket.nio.NioSocketChannel; | ||
| import io.netty.channel.unix.DomainSocketAddress; | ||
| import io.netty.channel.unix.UnixChannel; | ||
| import io.netty.handler.codec.http.HttpClientCodec; | ||
| import io.netty.handler.ssl.SslHandler; | ||
| import io.netty.handler.timeout.IdleState; | ||
| import io.netty.handler.timeout.IdleStateEvent; | ||
| import io.netty.handler.timeout.IdleStateHandler; | ||
| import io.netty.util.concurrent.DefaultThreadFactory; | ||
| import org.apache.commons.lang.SystemUtils; | ||
| import org.bouncycastle.jce.provider.BouncyCastleProvider; | ||
| import org.testcontainers.DockerClientFactory; | ||
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|
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| import javax.net.ssl.SSLEngine; | ||
| import javax.net.ssl.SSLParameters; | ||
| import java.io.IOException; | ||
| import java.net.SocketTimeoutException; | ||
| import java.security.Security; | ||
| import java.util.concurrent.ThreadFactory; | ||
| import java.util.concurrent.TimeUnit; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
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| /** | ||
| * This class is a modified version of docker-java's NettyDockerCmdExecFactory v3.1.0-rc-2 | ||
| * Changes: | ||
| * - daemonized thread factory | ||
| * - thread group | ||
| * - the logging handler removed | ||
| * - | ||
| */ | ||
| public class TestcontainersDockerCmdExecFactory extends AbstractDockerCmdExecFactory implements DockerCmdExecFactory { | ||
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| private static final String THREAD_PREFIX = "testcontainers-netty"; | ||
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| /* | ||
| * useful links: | ||
| * | ||
| * http://stackoverflow.com/questions/33296749/netty-connect-to-unix-domain-socket-failed | ||
| * http://netty.io/wiki/native-transports.html | ||
| * https://github.com/netty/netty/blob/master/example/src/main/java/io/netty/example/http/snoop/HttpSnoopClient.java | ||
| * https://github.com/slandelle/netty-request-chunking/blob/master/src/test/java/slandelle/ChunkingTest.java | ||
| */ | ||
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| private Bootstrap bootstrap; | ||
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| private EventLoopGroup eventLoopGroup; | ||
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| private NettyInitializer nettyInitializer; | ||
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| private WebTarget baseResource; | ||
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| private Integer connectTimeout = null; | ||
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| private Integer readTimeout = null; | ||
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| @Override | ||
| public void init(DockerClientConfig dockerClientConfig) { | ||
| super.init(dockerClientConfig); | ||
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| bootstrap = new Bootstrap(); | ||
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| String scheme = dockerClientConfig.getDockerHost().getScheme(); | ||
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| if ("unix".equals(scheme)) { | ||
| nettyInitializer = new UnixDomainSocketInitializer(); | ||
| } else if ("tcp".equals(scheme)) { | ||
| nettyInitializer = new InetSocketInitializer(); | ||
| } | ||
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| eventLoopGroup = nettyInitializer.init(bootstrap, dockerClientConfig); | ||
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| baseResource = new NettyWebTarget(this::connect).path(dockerClientConfig.getApiVersion().asWebPathPart()); | ||
| } | ||
|
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| private DuplexChannel connect() { | ||
| try { | ||
| return connect(bootstrap); | ||
| } catch (InterruptedException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
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| private DuplexChannel connect(final Bootstrap bootstrap) throws InterruptedException { | ||
| return nettyInitializer.connect(bootstrap); | ||
| } | ||
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| private interface NettyInitializer { | ||
| EventLoopGroup init(final Bootstrap bootstrap, DockerClientConfig dockerClientConfig); | ||
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| DuplexChannel connect(final Bootstrap bootstrap) throws InterruptedException; | ||
| } | ||
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| private class UnixDomainSocketInitializer implements NettyInitializer { | ||
| @Override | ||
| public EventLoopGroup init(Bootstrap bootstrap, DockerClientConfig dockerClientConfig) { | ||
| if (SystemUtils.IS_OS_LINUX) { | ||
| return epollGroup(); | ||
| } else if (SystemUtils.IS_OS_MAC_OSX) { | ||
| return kqueueGroup(); | ||
| } | ||
| throw new RuntimeException("Unspported OS"); | ||
| } | ||
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| private ThreadFactory createThreadFactory() { | ||
| return new DefaultThreadFactory(THREAD_PREFIX, true, Thread.NORM_PRIORITY, DockerClientFactory.TESTCONTAINERS_THREAD_GROUP); | ||
| } | ||
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| public EventLoopGroup epollGroup() { | ||
| EventLoopGroup epollEventLoopGroup = new EpollEventLoopGroup(0, createThreadFactory()); | ||
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| ChannelFactory<EpollDomainSocketChannel> factory = () -> configure(new EpollDomainSocketChannel()); | ||
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| bootstrap.group(epollEventLoopGroup).channelFactory(factory).handler(new ChannelInitializer<UnixChannel>() { | ||
| @Override | ||
| protected void initChannel(final UnixChannel channel) throws Exception { | ||
| channel.pipeline().addLast(new HttpClientCodec()); | ||
| } | ||
| }); | ||
| return epollEventLoopGroup; | ||
| } | ||
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| public EventLoopGroup kqueueGroup() { | ||
| EventLoopGroup nioEventLoopGroup = new KQueueEventLoopGroup(0, createThreadFactory()); | ||
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| bootstrap.group(nioEventLoopGroup).channel(KQueueDomainSocketChannel.class) | ||
| .handler(new ChannelInitializer<KQueueDomainSocketChannel>() { | ||
| @Override | ||
| protected void initChannel(final KQueueDomainSocketChannel channel) throws Exception { | ||
| channel.pipeline().addLast(new HttpClientCodec()); | ||
| } | ||
| }); | ||
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| return nioEventLoopGroup; | ||
| } | ||
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| @Override | ||
| public DuplexChannel connect(Bootstrap bootstrap) throws InterruptedException { | ||
| return (DuplexChannel) bootstrap.connect(new DomainSocketAddress("/var/run/docker.sock")).sync().channel(); | ||
| } | ||
| } | ||
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| private class InetSocketInitializer implements NettyInitializer { | ||
| @Override | ||
| public EventLoopGroup init(Bootstrap bootstrap, final DockerClientConfig dockerClientConfig) { | ||
| EventLoopGroup nioEventLoopGroup = new NioEventLoopGroup(0, new DefaultThreadFactory(THREAD_PREFIX)); | ||
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| // TODO do we really need BouncyCastle? | ||
| Security.addProvider(new BouncyCastleProvider()); | ||
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| ChannelFactory<NioSocketChannel> factory = () -> configure(new NioSocketChannel()); | ||
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| bootstrap.group(nioEventLoopGroup).channelFactory(factory) | ||
| .handler(new ChannelInitializer<SocketChannel>() { | ||
| @Override | ||
| protected void initChannel(final SocketChannel channel) throws Exception { | ||
| channel.pipeline().addLast(new HttpClientCodec()); | ||
| } | ||
| }); | ||
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| return nioEventLoopGroup; | ||
| } | ||
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| @Override | ||
| public DuplexChannel connect(Bootstrap bootstrap) throws InterruptedException { | ||
| DockerClientConfig dockerClientConfig = getDockerClientConfig(); | ||
| String host = dockerClientConfig.getDockerHost().getHost(); | ||
| int port = dockerClientConfig.getDockerHost().getPort(); | ||
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| if (port == -1) { | ||
| throw new RuntimeException("no port configured for " + host); | ||
| } | ||
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| DuplexChannel channel = (DuplexChannel) bootstrap.connect(host, port).sync().channel(); | ||
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| final SslHandler ssl = initSsl(dockerClientConfig); | ||
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| if (ssl != null) { | ||
| channel.pipeline().addFirst(ssl); | ||
| } | ||
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| return channel; | ||
| } | ||
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| private SslHandler initSsl(DockerClientConfig dockerClientConfig) { | ||
| SslHandler ssl = null; | ||
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| try { | ||
| String host = dockerClientConfig.getDockerHost().getHost(); | ||
| int port = dockerClientConfig.getDockerHost().getPort(); | ||
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| final SSLConfig sslConfig = dockerClientConfig.getSSLConfig(); | ||
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| if (sslConfig != null && sslConfig.getSSLContext() != null) { | ||
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| SSLEngine engine = sslConfig.getSSLContext().createSSLEngine(host, port); | ||
| engine.setUseClientMode(true); | ||
| engine.setSSLParameters(enableHostNameVerification(engine.getSSLParameters())); | ||
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| // in the future we may use HostnameVerifier like here: | ||
| // https://github.com/AsyncHttpClient/async-http-client/blob/1.8.x/src/main/java/com/ning/http/client/providers/netty/NettyConnectListener.java#L76 | ||
|
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| ssl = new SslHandler(engine); | ||
| } | ||
|
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| } catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
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| return ssl; | ||
| } | ||
| } | ||
|
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| public SSLParameters enableHostNameVerification(SSLParameters sslParameters) { | ||
| sslParameters.setEndpointIdentificationAlgorithm("HTTPS"); | ||
| return sslParameters; | ||
| } | ||
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| @Override | ||
| public void close() throws IOException { | ||
| checkNotNull(eventLoopGroup, "Factory not initialized. You probably forgot to call init()!"); | ||
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| eventLoopGroup.shutdownGracefully(); | ||
| } | ||
|
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| /** | ||
| * Configure connection timeout in milliseconds | ||
| */ | ||
| public TestcontainersDockerCmdExecFactory withConnectTimeout(Integer connectTimeout) { | ||
| this.connectTimeout = connectTimeout; | ||
| return this; | ||
| } | ||
|
|
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| /** | ||
| * Configure read timeout in milliseconds | ||
| */ | ||
| public TestcontainersDockerCmdExecFactory withReadTimeout(Integer readTimeout) { | ||
| this.readTimeout = readTimeout; | ||
| return this; | ||
| } | ||
|
|
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| private <T extends Channel> T configure(T channel) { | ||
| ChannelConfig channelConfig = channel.config(); | ||
|
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| if (connectTimeout != null) { | ||
| channelConfig.setConnectTimeoutMillis(connectTimeout); | ||
| } | ||
| if (readTimeout != null) { | ||
| channel.pipeline().addLast("readTimeoutHandler", new ReadTimeoutHandler()); | ||
| } | ||
|
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| return channel; | ||
| } | ||
|
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| private final class ReadTimeoutHandler extends IdleStateHandler { | ||
| private boolean alreadyTimedOut; | ||
|
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| ReadTimeoutHandler() { | ||
| super(readTimeout, 0, 0, TimeUnit.MILLISECONDS); | ||
| } | ||
|
|
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| /** | ||
| * Called when a read timeout was detected. | ||
| */ | ||
| @Override | ||
| protected synchronized void channelIdle(ChannelHandlerContext ctx, IdleStateEvent evt) throws Exception { | ||
| assert evt.state() == IdleState.READER_IDLE; | ||
| final Channel channel = ctx.channel(); | ||
| if (channel == null || !channel.isActive() || alreadyTimedOut) { | ||
| return; | ||
| } | ||
| DockerClientConfig dockerClientConfig = getDockerClientConfig(); | ||
| final Object dockerAPIEndpoint = dockerClientConfig.getDockerHost(); | ||
| final String msg = "Read timed out: No data received within " + readTimeout | ||
| + "ms. Perhaps the docker API (" + dockerAPIEndpoint | ||
| + ") is not responding normally, or perhaps you need to increase the readTimeout value."; | ||
| final Exception ex = new SocketTimeoutException(msg); | ||
| ctx.fireExceptionCaught(ex); | ||
| alreadyTimedOut = true; | ||
| } | ||
| } | ||
|
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| protected WebTarget getBaseResource() { | ||
| checkNotNull(baseResource, "Factory not initialized, baseResource not set. You probably forgot to call init()!"); | ||
| return baseResource; | ||
| } | ||
| } |
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