Class not found: io.kubernetes.client.openapi.models.V1Service

[ldvy]

Hello guys, I get the following error when trying to use the YAML file from my GitRepo to deploy to kube cluster.

Here is the content of my .yaml file:

I've already tried changing the ports, the API version to apps/v1, etc.
What seems weird to me is that no matter which line goes foirst in the file, it always shows me the same issue.
What can be causing this?

[kellycampbell]

Similar problem in #134

What version of Kubernetes are you using?

[renedare]

I have the same problem running Kubernetes v1.18.3. I'm running Jenkins v2.235.1 and all my plugins are up to date.

The workaround I've found for now is to downgrade Jackson 2 API to v2.10.3 and to downgrade Snakeyaml API to v1.26.2. If those 2 plugins are updated to their respective latest versions, the error message comes back.

[ldvy]

I found the root cause of this behaviour. Jackson 2 API plugin version 2.11.1 is breaking kube deployments; you can find more info by the link below:
https://issues.jenkins-ci.org/browse/JENKINS-62995

Downgrading the following plugins worked for me: Jackson 2 API v2.10.0,
Kubernetes v1.21.3,
Kubernetes Client API v4.6.3-1,
Kubernetes Continuous Deploy v2.1.2,
Kubernetes Credentials v0.5.0

As those plugins are default, you would need to find the relevant version source files in https://plugins.jenkins.io/, and upload them to your Jenkins server by going
Manage Jenkins --> Manage Plugins --> Advanced --> Upload Plugin section