我正在 gitlab ci/cd 管道中工作。该管道使用 maven 和 docker 执行其所有命令（不包括部署）。在本例中，我尝试运行集成测试（由 Maven 启动），它使用测试容器（用于 mysql 数据库）。这些测试在本地运行时工作正常。然而，当我尝试从 gitlab 运行它们时遇到了问题。我相当确定我的问题是我无法访问 docker （但是，在这种情况下，我需要我的图像同时具有 docker 和 maven）。
这是 gitlab 文件的适用部分：
#This phase is only run when merging (to master)
merge_tests:
image: maven:latest
stage: mvn_build_and_test
#TODO can remove services if this does not work without docker image as base image
services:
- docker:stable-dind
#set variables for use later when running maven in script section
variables:
MAVEN_CLI_OPTS: "-s .m2/settings.xml --batch-mode"
MAVEN_OPTS: "-Dmaven.repo.local=.m2/repository"
script:
#ONLY RUN WHEN MERGE REQUEST IS TO MASTER BRANCH
#if ["$CI_MERGE_REQUEST_TARGET_BRANCH_NAME" == "master"]; then
#check docker is installed and running
#- docker --version #this fails if uncommented
- mvn $MAVEN_CLI_OPTS clean install -Pintegration-test-profile
#; fi
#only:
#- merge_requests
这是 gitlab 上的错误堆栈跟踪：
org.testcontainers.containers.ContainerLaunchException: Container startup failed
1958 Caused by: org.testcontainers.containers.ContainerFetchException: Can't get Docker image: RemoteDockerImage(imageNameFuture=java.util.concurrent.CompletableFuture@21baa903[Completed normally], imagePullPolicy=DefaultPullPolicy(), dockerClient=LazyDockerClient.INSTANCE)
1959 Caused by: java.lang.IllegalStateException: Could not find a valid Docker environment. Please see logs and check configuration
在有人建议之前，这个测试在本地工作（并且已经在本地工作了很长时间）。以下是示例输出的一部分：
[INFO] --- maven-failsafe-plugin:2.22.1:integration-test (integration-tests) @ reading-comprehension-api ---
[INFO]
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running com.connor.retrieving.GetByIsbnIT
-----content ommitted for brevity----------------------------
Tests run: 3, Failures: 0, Errors: 0, Skipped: 1, Time elapsed: 10.451 s - in com.connor.adding.AddAssessmentIT
--content ommitted, but test containers start
[INFO] --- maven-failsafe-plugin:2.22.1:verify (integration-tests) @ reading-comprehension-api ---
[INFO]
[INFO] --- maven-cucumber-reporting:2.8.0:generate (addCucumberReport) @ reading-comprehension-api ---
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
[INFO] About to generate Cucumber report.
[INFO]
[INFO] --- maven-cucumber-reporting:2.8.0:generate (getCucumberReport) @ reading-comprehension-api ---
[INFO] About to generate Cucumber report.
[INFO]
[INFO] --- maven-cucumber-reporting:2.8.0:generate (updateCucumberReport) @ reading-comprehension-api ---
[INFO] About to generate Cucumber report.
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ reading-comprehension-api ---
[INFO] Installing /home/connor/Desktop/code/reading-comprehension-api/target/reading-comprehension-api-0.0.1-SNAPSHOT.jar to /home/connor/.m2/repository/com/connor/reading-comprehension-api/0.0.1-SNAPSHOT/reading-comprehension-api-0.0.1-SNAPSHOT.jar
[INFO] Installing /home/connor/Desktop/code/reading-comprehension-api/pom.xml to /home/connor/.m2/repository/com/connor/reading-comprehension-api/0.0.1-SNAPSHOT/reading-comprehension-api-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 38.282 s
[INFO] Finished at: 2019-12-04T22:31:23-05:00
我应该如何解决这个问题？我应该创建自己的安装了 Maven 和 docker 的基础镜像吗？我可以轻松修改我的容器以在我的容器中使用 apt get 吗？欢迎任何建议，但我想要 docker 和 maven，因为它们在我的技术堆栈中并且正在工作——只是 gitlab 配置问题。
这是gitlab上的项目位置：https://gitlab.com/connorbutch/reading-compressive-api https://gitlab.com/connorbutch/reading-comprehension-api
虽然我当然欢迎对项目其他部分的评论，但这些评论应该通过电子邮件发送给我，以保持此页面干净（不要将它们放在这里）
