Inconsistency in Volume Mounts Between oap-deployment.yaml and oap-job.yaml Causes Init Job to Fail

[NoodlesWang2024]

Bug Description
We've encountered an issue where the OAP server fails to start in init mode when custom Kubernetes metrics are enabled. The same configuration works perfectly for the server in no-init mode (the standard deployment).

The root cause appears to be an inconsistency in how the custom metrics files are mounted between the init Job and the standard Deployment.

Steps to Reproduce:

Give a config like:

otel-rules:
      k8s:
        custom-k8s-deployment-rules.yaml:
           ***

Install the helm.

Expected Behavior:
Both the init mode OAP server (Job) and the no-init mode OAP server (Deployment) start successfully.

Actual Behavior:
The standard OAP server pods (from oap-deployment.yaml) run successfully. However, the init-mode pod (from the Job template) fails with the following error, as it cannot find the mounted metric files:

org.apache.skywalking.oap.server.core.UnexpectedException: Some configuration files of enabled rules are not found, enabled rules: [k8s/*{.yaml,.yml}]

Analysis:
Upon inspecting the Helm templates, I found that the volume mount configurations in the OAP Job template differ from those in the oap-deployment.yaml.

I believe these configurations should be made consistent to ensure that both the Job and the Deployment pods could run successful.

[kezhenxu94]

Thanks, can you please move the volumes and volumes and volumeMounts sections to helper file and use it in both the init job and the deployment, this can avoid future issue when adding new volumes

[NoodlesWang2024]

Thanks, can you please move the volumes and volumes and volumeMounts sections to helper file and use it in both the init job and the deployment, this can avoid future issue when adding new volumes

Make sense, Let me do it! ^~^

[NoodlesWang2024]

Thanks, can you please move the volumes and volumes and volumeMounts sections to helper file and use it in both the init job and the deployment, this can avoid future issue when adding new volumes

I made it, pls review again!

[kezhenxu94]

Thanks