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OpenClaw: 503 Service Temporarily Unavailable (k8s)

Common message

503 Service Temporarily Unavailable

Symptoms​

  • Pods stuck Pending (Insufficient cpu/memory)
  • CrashLoopBackOff / BackOff pulling image
  • PVC Pending / storage class mismatch

Root cause​

Kubernetes scheduling / runtime instability

Fix​

  1. Check cluster autoscaler limits and node pool capacity.
  2. Inspect pod events and container logs for root cause.
  3. Verify storage class exists and supports requested access mode.