docker - 无法连接到 tcp://localhost:2375/ 上的 Docker 守护程序。docker 守护进程是否正在运行。在 GitLab 上
问题描述
我正在尝试在 GitLab 中构建 CI 管道。我想问一下在 GitLab CI 中工作的 docker。
从这个问题:https ://gitlab.com/gitlab-org/gitlab-runner/issues/4501#note_195033385
我按照两种方式的说明进行操作。使用 TLS 而未使用 TLS。但它仍然卡住了。哪个在同一个错误
无法连接到 tcp://localhost:2375/ 上的 Docker 守护程序。docker 守护进程是否正在运行
我已尝试解决此问题。按照下面,
1) 启用 TLS
其中使用 .gitlab-ci.yml 和 config.toml 在 Runner 中启用 TLS。
这是我的.gitlab-ci.yml
image: docker:19.03
variables:
DOCKER_HOST: tcp://localhost:2375/
DOCKER_DRIVER: overlay2
DOCKER_TLS_CERTDIR: "/certs"
IMAGE_NAME: image_name
services:
- docker:19.03-dind
stages:
- build
publish:
stage: build
script:
- docker build -t$IMAGE_NAME:$(echo $CI_COMMIT_SHA | cut -c1-10) .
- docker push $IMAGE_NAME:$(echo $CI_COMMIT_SHA | cut -c1-10)
only:
- master
这是我的config.toml
[[runners]]
name = MY_RUNNER
url = MY_HOST
token = MY_TOKEN_RUNNER
executor = "docker"
[runners.custom_build_dir]
[runners.docker]
tls_verify = false
image = "docker:stable"
privileged = true
disable_entrypoint_overwrite = false
oom_kill_disable = false
disable_cache = false
volumes = ["/certs/client", "/cache"]
shm_size = 0
2) 禁用 TLS
.gitlab-ci.yml
image: docker:18.09
variables:
DOCKER_HOST: tcp://localhost:2375/
DOCKER_DRIVER: overlay2
DOCKER_TLS_CERTDIR: ""
IMAGE_NAME: image_name
services:
- docker:18.09-dind
stages:
- build
publish:
stage: build
script:
- docker build -t$IMAGE_NAME:$(echo $CI_COMMIT_SHA | cut -c1-10) .
- docker push $IMAGE_NAME:$(echo $CI_COMMIT_SHA | cut -c1-10)
only:
- master
这是我的config.toml
[[runners]]
environment = ["DOCKER_TLS_CERTDIR="]
有人知道吗?
解决方案
你想设置DOCKER_HOST
为tcp://docker:2375
. 它是一个“服务”,即在一个单独的容器中运行,默认情况下以图像名称命名,而不是本地主机。
这是一个.gitlab-ci.yml
应该工作的片段:
# Build and push the Docker image off of merges to master; based off
# of Gitlab CI support in https://pythonspeed.com/products/pythoncontainer/
docker-build:
stage: build
image:
# An alpine-based image with the `docker` CLI installed.
name: docker:stable
# This will run a Docker daemon in a container (Docker-In-Docker), which will
# be available at thedockerhost:2375. If you make e.g. port 5000 public in Docker
# (`docker run -p 5000:5000 yourimage`) it will be exposed at thedockerhost:5000.
services:
- name: docker:dind
alias: thedockerhost
variables:
# Tell docker CLI how to talk to Docker daemon; see
# https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#use-docker-in-docker-executor
DOCKER_HOST: tcp://thedockerhost:2375/
# Use the overlayfs driver for improved performance:
DOCKER_DRIVER: overlay2
DOCKER_TLS_CERTDIR: ""
script:
# Download bash:
- apk add --no-cache bash python3
# GitLab has a built-in Docker image registry, whose parameters are set automatically.
# See https://docs.gitlab.com/ee/ci/docker/using_docker_build.html#using-the-gitlab-contai
#
# CHANGEME: You can use some other Docker registry though by changing the
# login and image name.
- docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
- docker build -t "$CI_REGISTRY_IMAGE" .
- docker push "$CI_REGISTRY_IMAGE"
# Only build off of master branch:
only:
- master
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