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Pod Failure Due to ACI Provider Command Argument Configuration #49

@aitrailblazer

Description

@aitrailblazer

Analysis

Pod Overview:

  • Pod Name: eraser-virtual-node-aci-linux-ks96c
  • Namespace: kube-system

Log Analysis Content:

Warnings and Errors:

  • Error: ProviderFailed
    • Details: ACI does not support providing args without specifying the command. Please supply both command and args to the pod spec.
    • Timestamp: Not available in the provided log data.

Recommendations:

  1. Update Pod Specification:

    • Ensure that both the command and args are specified in the pod spec. This is crucial for proper ACI provider compatibility. For instance, specify an explicit command like command: ["/bin/sh", "-c"] followed by the args.
  2. Review Container Images:

    • Double-check if the container images (collector, remover, and trivy-scanner) support the commands and args being supplied, ensuring they align with best practices for running in Azure Container Instances (ACI).
  3. Enhance Error Logging:

    • Implement more detailed logging within the containers to capture any command execution errors explicitly. This will help in diagnosing similar issues in the future.
  4. Consult ACI Documentation:

    • Review the latest ACI documentation for any updates or changes in the way command and args should be configured to prevent similar failures.
  5. Monitor Pod Deployment:

    • After making the necessary changes, monitor the pod deployment closely for any other potential issues. Use Kubernetes monitoring tools to track the pod's status and logs in real-time.
  6. Test Configuration Locally:

    • Before deploying changes to the production cluster, test the updated configuration in a local environment or a test cluster to ensure that the command and args work seamlessly with the specified containers.

Original Log Data:

Pod: eraser-virtual-node-aci-linux-ks96c
Namespace: kube-system
Description:
Name: eraser-virtual-node-aci-linux-ks96c
Namespace: kube-system
Priority: 2000000000
Priority Class Name: system-cluster-critical
Service Account: eraser-imagejob-pods
Node: virtual-node-aci-linux
Labels: eraser.sh/type=collector
Annotations: 
Status: Failed
Reason: ProviderFailed
Message: ACI does not support providing args without specifying the command. Please supply both command and args to the pod spec.
IP: N/A
Controlled By: PodTemplate/imagejob-6rnpg
Containers:
  collector:
    Image: mcr.microsoft.com/oss/eraser/collector:v1.3.1
    Ports: 
    Args: --scan-disabled=false --enable-pprof=false --pprof-port=6060
    Limits: memory=500Mi
    Requests: cpu=7m, memory=25Mi
    Environment:
      KUBERNETES_SERVICE_HOST: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      KUBERNETES_PORT: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP_ADDR: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      NODE_NAME: ValueFrom: k8s.Models.V1EnvVarSource
    Mounts:
      /run/eraser.sh/shared-data from shared-data (rw)
      exclude-eraser-system-exclusion from eraser-system-exclusion (rw)
      /run/cri/cri.sock from runtime-sock-volume (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-vf7rc (ro)
  remover:
    Image: mcr.microsoft.com/oss/eraser/remover:v1.3.1
    Ports: 
    Args: --log-level=info --enable-pprof=false --pprof-port=6060
    Limits: memory=30Mi
    Requests: cpu=0, memory=25Mi
    Environment:
      KUBERNETES_SERVICE_HOST: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      KUBERNETES_PORT: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP_ADDR: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      OTEL_EXPORTER_OTLP_ENDPOINT: ValueFrom: N/A
      OTEL_SERVICE_NAME: remover
      NODE_NAME: ValueFrom: k8s.Models.V1EnvVarSource
    Mounts:
      /run/eraser.sh/shared-data from shared-data (rw)
      exclude-eraser-system-exclusion from eraser-system-exclusion (rw)
      /run/cri/cri.sock from runtime-sock-volume (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-vf7rc (ro)
  trivy-scanner:
    Image: mcr.microsoft.com/oss/eraser/eraser-trivy-scanner:v1.3.1
    Ports: 
    Args: --config=/config/controller_manager_config.yaml --enable-pprof=false --pprof-port=6060
    Limits: memory=2Gi
    Requests: cpu=250m, memory=500Mi
    Environment:
      KUBERNETES_SERVICE_HOST: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      KUBERNETES_PORT: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP: tcp://ait-dns-3ss19hej.hcp.eastus2.azmk8s.io:443
      KUBERNETES_PORT_443_TCP_ADDR: ait-dns-3ss19hej.hcp.eastus2.azmk8s.io
      OTEL_EXPORTER_OTLP_ENDPOINT: ValueFrom: N/A
      OTEL_SERVICE_NAME: trivy-scanner
      ERASER_RUNTIME_NAME: containerd
      CONTAINERD_NAMESPACE: k8s.io
      NODE_NAME: ValueFrom: k8s.Models.V1EnvVarSource
    Mounts:
      /run/eraser.sh/shared-data from shared-data (rw)
      /config from eraser-config (rw)
      exclude-eraser-system-exclusion from eraser-system-exclusion (rw)
      /run/cri/cri.sock from runtime-sock-volume (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-vf7rc (ro)
Volumes:
  runtime-sock-volume:
    Type: HostPath
    Path: /run/containerd/containerd.sock
  shared-data:
    Type: EmptyDir
  eraser-config:
    Type: ConfigMap
    Name: eraser-manager-config
  eraser-system-exclusion:
    Type: ConfigMap
    Name: eraser-system-exclusion
  kube-api-access-vf7rc:
    Type: Projected
Tolerations:
  - Key: N/A, Effect: N/A, Value: N/A, Toleration Seconds: N/A
Events:
  No events found for this pod.

Summary

Further investigation into the pod eraser-virtual-node-aci-linux-ks96c in the namespace kube-system is recommended based on the above analysis.

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