GitLab Runner - Docker Image - docker

Question

I started to work with GitLab CI/CD. I have setup my own GitLab-runner with docker executor. It is working fine. When I read about docker, I came to know that it creates a separate space for each run so that we could even access it and use it. I would like to know the path in which the docker images are created.
This is my config.toml
concurrent = 1
check_interval = 0
[session_server]
session_timeout = 1800
[[runners]]
name = "Linux-Docker1"
url = "https://gitlab.com/"
token = "4-UWY1A_J2rS7r32wxJi"
executor = "docker"
builds_dir = "/var/working/gitlab-runner-docker"
[runners.custom_build_dir]
[runners.cache]
[runners.cache.s3]
[runners.cache.gcs]
[runners.docker]
tls_verify = false
image = "ruby:2.6"
privileged = false
disable_entrypoint_overwrite = false
oom_kill_disable = false
disable_cache = false
volumes = ["/cache"]
shm_size = 0
[[runners]]
name = "Linux-Shell1"
url = "https://gitlab.com/"
token = "LzdxrS1zA58rXihSQWCn"
executor = "shell"
builds_dir = "/var/working/gitlab-runner"
[runners.custom_build_dir]
[runners.cache]
[runners.cache.s3]
[runners.cache.gcs]
This is my .gitlab-ci.yml file
stages:
- build
- test
build:
stage: build
script:
- whoami
- mkdir test-build
- touch test-build/info.txt
- ls
- pwd
- cd ..
- pwd
- ls
artifacts:
paths:
- test-build/
test:
stage: test
script:
- echo "Test Script"
- ls
- test -f "test-build/info.txt"

Answer 1

In your case you didn't create a docker image, because in your build step you do not run docker build command
about the path, if you build a docker image, you need to push it to a container registry (docker hub or a private one)
look at this doc to know how to do it
https://docs.gitlab.com/ee/ci/docker/using_docker_build.html