Gitlab Runner 16.2.0 jsonschema: '/runners/0/docker/ulimit' does not validate ... expected object, but got null
I want to migrate an existing Gitlab instance to another server. Today, I've updated Gitlab and Gitlab-Runner from 15.3.3 to 15.6 to 16.2. After upgrading the Gitlab runner, I get the following Warning/Error:
There might be a problem with your config based on jsonschema annotations in common/config.go (experimental feature):
jsonschema: '/runners/0/docker/ulimit' does not validate with https://gitlab.com/gitlab-org/gitlab-runner/common/config#/$ref/properties/runners/items/$ref/properties/docker/$ref/properties/ulimit/type: expected object, but got null
I did not set docker.ulimit anywhere and want to stay with default values. As I can see, it's related to this MR: #4482 (closed).
Here are some specs if needed:
[root@server gitlab-runner]# cat config.toml
concurrent = 8
check_interval = 0
[session_server]
session_timeout = 1800
[[runners]]
name = "brandbox-docker-ciexecutor"
url = "https://git.domain.tld/"
token = "<TOKEN>"
executor = "docker"
[runners.docker]
tls_verify = false
image = "<IMAGE>"
privileged = false
disable_entrypoint_overwrite = false
oom_kill_disable = false
disable_cache = false
volumes = ["/var/run/docker.sock:/var/run/docker.sock", "/cache"]
shm_size = 0
[runners.cache]
[runners.cache.s3]
[runners.cache.gcs]
[[runners]]
name = "brandbox-shell"
url = "https://git.domain.tld/"
token = "<TOKEN>"
executor = "shell"
[runners.cache]
[runners.cache.s3]
[runners.cache.gcs]
[root@server gitlab-runner]# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.6 LTS (Bionic Beaver)"
(...)