Trying to use gitlab-ci.yml to create a docker image

GitLab CI/CD
,
1

What I need to do:
I’m trying to create a Gitlab pipeline that will build a docker image first thing. this image will then be used in all subsequents stages of the pipeline to deploy an azure function.

I’m using a local GitLab Runner on my Mac mini.

Error
My job fails with the following error message:

Executing “step_script” stage of the job script

19$ docker build -t o3m-ext-azure:0.1 .

20Cannot connect to the Docker daemon at tcp://docker:2375. Is the docker daemon running?

21Cleaning up file based variables

22ERROR: Job failed: exit code 1

gitlab-ci.yml

stages:
 - build
 - dev
 - qa
 - production

Build:
  stage: build
  services: 
   - name: docker:dind
  script:
   - docker build -t myImageName:0.1 . 
  tags:
    - docker-azure

Dockerfile

FROM mcr.microsoft.com/dotnet/core/sdk:3.1
RUN curl -sL https://aka.ms/InstallAzureCLIDeb | bash
RUN apt-get install curl && curl -sL https://deb.nodesource.com/setup_12.x | bash -
RUN apt-get install nodes
RUN npm install -g azure-functions-core-tools@3 --unsafe-perm true
COPY . /opt/source-code

config.toml
58 [[runners]]
59 name = “jj.docker.azure”
60 url = “https://ourgitlabserver/”
61 token = “upzG1uaG-asdfasdf”
62 executor = “docker”
63 [runners.custom_build_dir]
64 [runners.cache]
65 [runners.cache.s3]
66 [runners.cache.gcs]
67 [runners.cache.azure]
68 [runners.docker]
69 tls_verify = false
70 image = “docker:stable”
71 privileged = true
72 disable_entrypoint_overwrite = false
73 oom_kill_disable = false
74 disable_cache = false
75 volumes = [“/cache”]
76 shm_size = 0

2

actually, I just updated the config.toml to include this:
volumes = ["/var/run/docker.sock:/var/run/docker.sock", "/cache"]

I thought I added it previously… but clearly not.
and now … the job works!

3

The volumes property will cause the docker client in your job to use your local Docker daemon running on your Mac and not the DinD you have started using services:.

Here are the docs how to use DinD in GitLab CI/CD.