gitlab kubernetes runner 无法连接到 docker 守护进程

Question

我已经在 kubernetes 中配置了 gitlab runner，它无法连接到 docker daemon 。显示以下错误。

$ docker build --cache-from "${DOCKER_IMAGE_TAG}" -t "${DOCKER_IMAGE_TAG}" 。

无法连接到 unix:///var/run/docker.sock 上的 Docker 守护进程。docker 守护进程是否正在运行？错误：作业失败：命令以退出代码 1 终止

stages:
  - push_to_docker

docker_image:
 image: 'docker:latest'
 services:
  - docker:dind
 stage: push_to_docker
 variables:
    DOCKER_IMAGE_TAG: 'gcr.io/abcd-project/test'
 script:
   - docker build --cache-from "${DOCKER_IMAGE_TAG}" -t "${DOCKER_IMAGE_TAG}" .
   - echo "$SERVICE_ACCOUNT_KEY" > key.json
   - docker login -u _json_key --password-stdin https://gcr.io < key.json
   - docker push ${DOCKER_IMAGE_TAG}
 only:
   - master
 tags:
   - abcd

我的config.toml文件如下

listen_address = "[::]:9252"
concurrent = 4
check_interval = 3
log_level = "info"

[session_server]
  session_timeout = 1800

[[runners]]
  name = "runner-gitlab-runner-78c7db94bc-lzv76"
  request_concurrency = 1
  url = "https://gitlab.com/"
  token = "*********"
  executor = "kubernetes"
  [runners.custom_build_dir]
  [runners.cache]
    [runners.cache.s3]
    [runners.cache.gcs]
  [runners.kubernetes]
    host = ""
    bearer_token_overwrite_allowed = false
    image = "ubuntu:16.04"
    namespace = "gitlab-managed-apps"
    namespace_overwrite_allowed = ""
    privileged = true
    service_account_overwrite_allowed = ""
    pod_annotations_overwrite_allowed = ""
    [runners.kubernetes.pod_security_context]
    [runners.kubernetes.volumes]

检查配置如下

    image: docker:19.03.1
    services:
    - docker:19.03.1-dind
    variables:
      DOCKER_HOST: tcp://docker:2375

更改配置后我的 .gitlab-ci.yml 文件如下：

stages:
  - push_to_docker
  - deploy_into_kubernetes
variables:
  DOCKER_IMAGE_TAG: 'gcr.io/abcd-project/test:$CI_COMMIT_SHORT_SHA'
  DOCKER_HOST: tcp://docker:2375

docker_image_creation:
 image: docker:19.03.1
 services:
  - docker:19.03.1-dind

 stage: push_to_docker

 script:
   - docker build -t "${DOCKER_IMAGE_TAG}" .
   - echo "$SERVICE_ACCOUNT_KEY" > key.json
   - docker login -u _json_key --password-stdin https://gcr.io < key.json
   - docker push ${DOCKER_IMAGE_TAG}
 tags:
   - cluster
   - kubernetes

但出现以下错误：

跳过 Git 子模块 setup $ docker build -t "${DOCKER_IMAGE_TAG}" 。time="2019-11-04T08:07:37Z" level=error msg="failed to dial gRPC: cannot connect to the Docker daemon. Is 'docker daemon' running on this host?: dial tcp: lookup docker on 10.0. 0.10:53：连接期间没有这样的主机”错误：发布 http://docker:2375/v1.40/build?buildargs=%7B%7D&cachefrom=%5B%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&dockerfile = Dockerfile＆标签=％7B％7D＆存储器= 0＆memswap = 0＆网络模式=默认＆RM = 1＆会话= l1ce41pzm1p9a4jdhs31z9p64＆shmsize = 0＆T = gcr.io％2Fupbeat阻燃247110％2Fgitlab浇道-POC％3A25b1faa0＆目标=＆ulimits = NULL＆版本= 1：上下文取消

Answer 1

使用 docker19，它会自动为您配置其主机：

image: docker:19.03.1
services:
- docker:19.03.1-dind
variables:
  DOCKER_HOST: tcp://docker:2375

https://docs.gitlab.com/ee/ci/docker/using_docker_build.html