Gitlab CI生成失败，为“0”；准备失败：无法连接到Docker端点"；

这是

.gitlab ci.yml

文件

image: maven:3-jdk-8
build:
   script: "mvn install -B"

然后生成将失败，并出现以下错误

Running with gitlab-ci-multi-runner 1.8.0 (734bc5d)
Using Docker executor with image maven:3-jdk-8 ...
ERROR: Preparation failed: cannot connect to Docker endpoint
Will be retried in 3s ...
Using Docker executor with image maven:3-jdk-8 ...
ERROR: Preparation failed: cannot connect to Docker endpoint
Will be retried in 3s ...
Using Docker executor with image maven:3-jdk-8 ...
ERROR: Preparation failed: cannot connect to Docker endpoint
Will be retried in 3s ...
ERROR: Build failed (system failure): cannot connect to Docker endpoint

这就是跑步者的出发方式

docker run -d --name gitlab-runner --restart always \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /srv/gitlab-runner/config:/etc/gitlab-runner \
  gitlab/gitlab-runner:latest

docker exec -it gitlab-runner gitlab-runner register

Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com )
https://gitlab.com
Please enter the gitlab-ci token for this runner
xxx
Please enter the gitlab-ci description for this runner
my-runner
INFO[0034] fcf5c619 Registering runner... succeeded
Please enter the executor: shell, docker, docker-ssh, ssh?
docker
Please enter the Docker image (eg. ruby:2.1):
maven:3-jdk-8
INFO[0037] Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

这是如何配置运行程序的

docker run -d --name gitlab-runner --restart always \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /srv/gitlab-runner/config:/etc/gitlab-runner \
  gitlab/gitlab-runner:latest

docker exec -it gitlab-runner gitlab-runner register

Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com )
https://gitlab.com
Please enter the gitlab-ci token for this runner
xxx
Please enter the gitlab-ci description for this runner
my-runner
INFO[0034] fcf5c619 Registering runner... succeeded
Please enter the executor: shell, docker, docker-ssh, ssh?
docker
Please enter the Docker image (eg. ruby:2.1):
maven:3-jdk-8
INFO[0037] Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

---

上面还有什么我遗漏的吗？

这里没有足够的信息。您的跑步者是如何配置的？docker守护进程正在运行吗？@Frap感谢您的关注，我刚刚用您提到的信息更新了我的问题above@YuwenYan你找到解决办法了吗？