kubernetes pod_error ai_generated true

containers with unready status: [sidecar-container] — pod not ready due to sidecar

ID: kubernetes/k8s-sidecar-not-ready

Also available as: JSON · Markdown
83%Fix Rate
85%Confidence
50Evidence
2023-06-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8 active — — —

Root Cause

Sidecar container is not ready, preventing the entire pod from being marked as Ready. Common with service mesh proxies and logging sidecars.

generic

Workarounds

  1. 90% success Check sidecar container logs to find the failure reason 
    kubectl logs <pod> -c <sidecar-name> — look for certificate errors, config issues, or port conflicts

    Sources: https://kubernetes.io/docs/concepts/workloads/pods/sidecar-containers/

  2. 85% success Verify sidecar configuration and resource limits — sidecars often need specific memory/CPU 
    kubectl describe pod <pod> to check sidecar resource usage and events

    Sources: https://kubernetes.io/docs/concepts/workloads/pods/sidecar-containers/

Dead Ends

Common approaches that don't work:

  1. Remove the sidecar container from the pod 75% fail

    Breaks service mesh connectivity, logging, or monitoring that depends on the sidecar

  2. Ignore the readiness check and send traffic anyway 80% fail

    Traffic may fail if the sidecar (e.g., Envoy proxy) is required for routing

Error Chain

Leads to:
Preceded by:
Frequently confused with: