Gitlab docker runner does not run pipeline jobs - docker

Question

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Yes wants to draw more attention to this question.
I have a gitlab runner that is running on my local machine. I disabled all the other shared runners in my repository, and configured my runner exactly according to the runner/install/docker tutorial.
When I select shell as the executor, the pipeline runs fine. However, when I select docker as the executor as they specify in the tutorial, I get the following message on gitlab:
This job is stuck because the project doesn't have any runners online assigned to it.Go to project CI settings
My docker runner is enabled and configured exactly like the shell runner that is working with no problem, I only followed the steps outlined in the abovementioned docker tutorial.
On gitlab, my runner is enabled under the "Active runners" section:
This is the result of docker inspect <image hash>:
% docker inspect 145a3d0b000e700e0ee87ad7d0ed26f2c5e2f10a7334f94802b6cd60bdabcd16
[
{
"Id": "sha256:145a3d0b000e700e0ee87ad7d0ed26f2c5e2f10a7334f94802b6cd60bdabcd16",
"RepoTags": [
"gitlab/gitlab-runner:latest"
],
"RepoDigests": [
"gitlab/gitlab-runner#sha256:207a72393d0f5da5078e5c61039e495aa5727c5bf9a7d4bea0cde72ce9ae26fe"
],
"Parent": "",
"Comment": "buildkit.dockerfile.v0",
"Created": "2023-02-02T16:27:53.208812304Z",
"Container": "",
"ContainerConfig": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": null,
"Cmd": null,
"Image": "",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": null
},
"DockerVersion": "",
"Author": "",
"Config": {
"Hostname": "",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
],
"Cmd": [
"run",
"--user=gitlab-runner",
"--working-directory=/home/gitlab-runner"
],
"ArgsEscaped": true,
"Image": "",
"Volumes": {
"/etc/gitlab-runner": {},
"/home/gitlab-runner": {}
},
"WorkingDir": "",
"Entrypoint": [
"/usr/bin/dumb-init",
"/entrypoint"
],
"OnBuild": null,
"Labels": {
"org.opencontainers.image.ref.name": "ubuntu",
"org.opencontainers.image.version": "20.04"
},
"StopSignal": "SIGQUIT"
},
"Architecture": "amd64",
"Os": "linux",
"Size": 706603328,
"VirtualSize": 706603328,
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/442844f68437704d9950f9613eda83e9b1b2e7ca159682f9d981a45207f74c24/diff:/var/lib/docker/overlay2/44ed4b6ca8fa1ee991f93e551c8aa57598ddd510f934e96ed5f6417221835592/diff",
"MergedDir": "/var/lib/docker/overlay2/263e1ed7165ebfe9a7b158a8ddc96ce6f3c8d51dbfb1bd1063b8ed02e0f03ec4/merged",
"UpperDir": "/var/lib/docker/overlay2/263e1ed7165ebfe9a7b158a8ddc96ce6f3c8d51dbfb1bd1063b8ed02e0f03ec4/diff",
"WorkDir": "/var/lib/docker/overlay2/263e1ed7165ebfe9a7b158a8ddc96ce6f3c8d51dbfb1bd1063b8ed02e0f03ec4/work"
},
"Name": "overlay2"
},
"RootFS": {
"Type": "layers",
"Layers": [
"sha256:d543b8cad89e3428ac8852a13cb2dbfaf55b1e10fd95a9753e51faf393d60e81",
"sha256:ec62d73d1c4bd3feb4b9d3630f9728c127076c4f63d2de15534cd6a524d5c3ee",
"sha256:e156984aefdb9217aa8df6efaa022838b0a2706bba77ff12855c2f2c2e8a58a0"
]
},
"Metadata": {
"LastTagTime": "0001-01-01T00:00:00Z"
}
}
]
What am I missing in my configuration that is preventing me from running my pipeline in my container?

Answer 1

You need either set a runner "Tag" in your runner configuration AND in your job, or you need to set the runner configuration "Run untagged jobs" and use no "tag" in your job.
In a job you would set a runner tag like this:
job:
tags:
- myrunnertag