#CSI Workload Configuration Troubleshooting

This guide provides detailed steps for diagnosing and resolving common issues with the Connectors CSI Driver when mounting OCI registry configurations in workloads.

#Common Issues Overview

#Checking CSI Volume Configuration

Verify the CSI volume configuration in your workload YAML:

volumes:
- name: registry-config
  csi:
    readOnly: true
    driver: connectors-csi
    volumeAttributes:
      connector.name: "<connector-name>"
      configuration.names: "registry-config"

Common configuration options:

Common configuration issues:

How to verify:

# Check if the connector exists
kubectl get connector <connector-name> -n <namespace>

# Verify the connector is Ready
kubectl get connector <connector-name> -n <namespace> -o jsonpath='{.status.conditions[?(@.type=="Ready")].status}'

# Check CSI driver availability
kubectl get pods -n connectors-system -l app.kubernetes.io/name=connectors-csi

#Examining Pod Events

Check Pod events for mount-related issues:

kubectl describe pod <pod-name> -n <namespace>

Common error messages and solutions:

Example error and resolution:

  Warning  FailedMount  3m (x5 over 5m)  kubelet  MountVolume.SetUp failed for volume "registry-config" :
  rpc error: code = NotFound desc = connector "oci-registry" not found

Resolution: Create the connector or correct the connector name in the volume attributes.

#Finding Generated OCI Configuration Files

Locate the configuration files:

# For registry-config
kubectl exec <pod-name> -n <namespace> -- cat {YOUR-MOUNT-PATH}/config.json

# For buildkitd
kubectl exec <pod-name> -n <namespace> -- cat {YOUR-MOUNT-PATH}/buildkitd.toml

If configuration files are not found, check:

1. Volume mount is successful
2. CSI driver is healthy
3. ServiceAccount has permissions
4. Connector is Ready
5. Mount path matches container user's expected path

#Examining OCI Client Configuration Content

#registry-config

Check the generated config.json file:

kubectl exec <pod-name> -n <namespace> -- cat {YOUR-MOUNT-PATH}/config.json

Expected configuration elements:

{
  "auths": {
    "c-<connector-name>.<namespace>.svc.cluster.local": {
      "auth": "<base64-encoded-token>"
    }
  }
}

#buildkitd configuration

Check the generated buildkitd.toml file:

kubectl exec <pod-name> -n <namespace> -- cat {YOUR-MOUNT-PATH}/buildkitd.toml

Expected configuration elements:

insecure-entitlements = [ "network.host", "security.insecure" ]
[registry."c-<connector-name>.<namespace>.svc.cluster.local"]
  http = true

#Advanced Troubleshooting

#CSI Driver Logs

Check CSI driver logs for detailed error information:

kubectl logs -n connectors-system -l app.kubernetes.io/name=connectors-csi -c csi-driver

#Proxy Service Logs

Check the proxy service logs for authentication or access issues:

kubectl logs -n connectors-system -l app.kubernetes.io/name=connectors-proxy

#Additional Resources

• Connectors CSI Driver Concepts
• OCI Connector Quick Start
• Connector Status Troubleshooting
• Using OCI Connector in Kubernetes Workloads
• Using OCI Connector in Tekton Pipeline