error during connect: Get "https://docker:2376/v1.24/containers/json?all=.." tls: failed to verify certificate: x509: certificate signed by unknown authority

[david-nano]

error during connect: Get "https://docker:2376/v1.24/containers/json?all=.." tls: failed to verify certificate: x509: certificate signed by unknown authority

[firecow]

---
test-job:
  image: docker:24.0.2-git
  services:
    - name: registry.hub.docker.com/library/docker:24.0.2-dind
      alias: docker
  script:
    - docker version

Using this .gitlab-ci-local-env

PRIVILEGED=true
ULIMIT=8000:16000
VOLUME="/etc/docker/daemon.json:/etc/docker/daemon.json certs:/certs/client /netapp:/netapp"
VARIABLE="DOCKER_TLS_CERTDIR=/certs DOCKER_BUILDKIT=0 COMPOSE_DOCKER_CLI_BUILD=0"

I'm not seeing the symptom, when using a simple example.

https://gitlab.com/firecow/gitlab-ci-debugging/-/jobs/6254313223

Strip down your example, line by line, instruction by instruction, and eventually I'm sure we will get to the bottom of this.

[firecow]

Please, get rid of as many factors and yaml as possible.

This is not an as simple as possible example at all 😁

It makes it overly difficult for others to debug.

[david-nano]

Please, get rid of as many factors and yaml as possible.

This is not an as simple as possible example at all 😁

It makes it overly difficult for others to debug.

Is it better now?

[firecow]

I would be nice to add some sort of hint for others that might end up in a similar situation.
What was your mistake?

[david-nano]

I would be nice to add some sort of hint for others that might end up in a similar situation. What was your mistake?

Not reproducible :(
The next business day, everything worked, not sure why.