如何解决 Spring Boot 上的 org.testcontainers.containers.ContainerFetchException？

Question

我正在为我的 Spring Boot 应用程序开发一些集成测试。我正在使用testcontainers以创建MongoDBdocker 映像。到目前为止我的代码：

ContainerListener.java类：

公共类 ContainerListener 实现了 TestListener {

@ClassRule
public static Network sharedNetwork = Network.newNetwork();

@ClassRule
public static GenericContainer mongoDBContainer = new GenericContainer("mongo:3.2.4").withNetwork(sharedNetwork)
        .withNetworkAliases("mongo").withExposedPorts(27017);

public static MockServerContainer mockServerContainer = new MockServerContainer().withNetwork(sharedNetwork)
        .withNetworkAliases("mockserver").withExposedPorts(1080);

public static int getMockPort() {
    return mockServerContainer.getMappedPort(1080);
}

public static int getMongoPort() {
    return mongoDBContainer.getMappedPort(27017);
}

public static void runAll() {
    List.of(mongoDBContainer, mockServerContainer).forEach(e -> e.start());
}

public static void stopAll() {
    List.of(mongoDBContainer, mockServerContainer).forEach(e -> e.stop());
}

}

和SomeControllerIntegrationTest.java类：

import io.restassured.RestAssured;
import io.restassured.parsing.Parser;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import static io.restassured.RestAssured.given;

public class RatingControllerIntegrationTest {

    @BeforeAll
    public static void setuo() {
        ContainerListener.runAll();

    }

    @AfterAll
    public static void tearDown() {
        ContainerListener.stopAll();
    }

    @Test
    public void detailsTest() throws Exception {
        RestAssured.enableLoggingOfRequestAndResponseIfValidationFails();
        RestAssured.defaultParser = Parser.JSON;

        given().log().all().when().get("http://localhost:8080/actuator/info/").then().log().all()
                .statusCode(200);
    }

}

尽管在运行测试后我收到以下错误：

org.testcontainers.containers.ContainerLaunchException: Container startup failed

Caused by: org.testcontainers.containers.ContainerFetchException: Can't get Docker image: RemoteDockerImage(imageName=mongo:3.2.4, imagePullPolicy=DefaultPullPolicy())
    at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1279)
    at org.testcontainers.containers.GenericContainer.logger(GenericContainer.java:613)
    at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:320)
    ... 58 more
Caused by: java.lang.IllegalStateException: Can not connect to Ryuk at localhost:32770
    at org.testcontainers.utility.ResourceReaper.start(ResourceReaper.java:176)
    at org.testcontainers.DockerClientFactory.client(DockerClientFactory.java:168)
    at org.testcontainers.LazyDockerClient.getDockerClient(LazyDockerClient.java:14)
    at org.testcontainers.LazyDockerClient.listImagesCmd(LazyDockerClient.java:12)
    at org.testcontainers.images.LocalImagesCache.maybeInitCache(LocalImagesCache.java:68)
    at org.testcontainers.images.LocalImagesCache.get(LocalImagesCache.java:32)
    at org.testcontainers.images.AbstractImagePullPolicy.shouldPull(AbstractImagePullPolicy.java:18)
    at org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:59)
    at org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:26)
    at org.testcontainers.utility.LazyFuture.getResolvedValue(LazyFuture.java:20)
    at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:27)
    at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1277)
    ... 60 more

Answer 1

如果您还没有看到：https ://github.com/testcontainers/testcontainers-java/issues/3166

github 用户 @bsideup 概述了三个选项。当然，这只适用于您是使用 Docker for Mac 的 Mac 用户。

• 使用包含修复程序的 Testcontainers 1.15.0-rc2
• 在 Docker for Mac 2.4.0 中禁用 gRPC FUSE
• 降级到 Docker for Mac 2.3.x

这（禁用 gRPC）为我解决了这个问题，所以我将其作为参考。不使用 gRPC FUSE 可能会产生重大影响，具体取决于您的工作流程。因此，您最好检查一下是否可以，或者最好降级到 Docker for Mac 2.3.x。我没有选择第一个选项，因为它似乎不会停止容器，这对我来说是所有选项中最糟糕的。