2

I am trying to build a super-simple CI/CD pipeline using GitLab CI. Upon running it I get presented with the error:

Server:
ERROR: Cannot connect to the Docker daemon at tcp://docker:2375.
Is the docker daemon running?

My .gitlab-ci.yml is :

image: docker:latest
variables:
  DOCKER_HOST: tcp://docker:2375
services:
  - name: docker:dind
    entrypoint: ["env", "-u", "DOCKER_HOST"]
    command: ["dockerd-entrypoint.sh"]


before_script:
  - docker --version
docker_build:
  stage: build
  image: docker:latest
  services:
    - docker:dind
  script:
    - docker build -t arieltar/hubsec:1.1 .
    - docker push arieltar/hubsec:1.1
halfer
  • 19,824
  • 17
  • 99
  • 186
Ariel Tarayants
  • 149
  • 6

2 Answers2

1

Based on the error message I would ask, does the gitlab-runner user belong to the docker group?

You will need to decide if you want to use Docker-in-Docker with, or without TLS. This requires changing /etc/gitlab-runner/config.toml settings, and assigning the DOCKER_TLS_CERTDIR in your .gitlab-ci.yml file. See the Docker-in-docker section of the GitLab docs.

Richard
  • 2,226
  • 2
  • 19
  • 35
1

Please check below things as prelim.

  1. Whether docker is running or not
  2. Login with gitlab-user if you are running pipeline with gitlab user and check if that user can access or run docker ps without sudo :).
  3. add below entry if pt1. and pt2 satisfied.

services:

  • name: docker:dind entrypoint: ["dockerd-entrypoint.sh", "--tls=false"] script:
  • export DOCKER_HOST=tcp://127.0.0.1:2375 && docker build -t arieltar/hubsec:1.1 .
Time
  • 143
  • 1
  • 1
  • 10