Kubernetes
A workload can be rejected before Pod creation because its requested privileges violate namespace policy. Inspect policy labels and the exact error.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Investigate admission rejection under Pod Security Admission
Kubernetes
A create or update can fail because its configured webhook endpoint is unavailable. Inspect the registered configuration and supporting service.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Diagnose an admission webhook timeout before bypassing policy
Kubernetes
An unready node can reflect runtime, network, kubelet or resource pressure rather than one application fault. Collect node evidence first.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Investigate Node NotReady through conditions and recent events
Kubernetes
A node can be Ready but intentionally unschedulable during maintenance. Check scheduling state before changing placement rules.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Explain why healthy nodes receive no new ordinary workloads
Kubernetes
Draining affects application availability, local temporary data and storage attachment. Inventory the node before initiating eviction.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Review node workloads before planning a Kubernetes drain
Kubernetes
A server's advertised capacity is not all available to ordinary Pods. Reservations and already requested resources affect scheduling.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Compare schedulable allocatable resources with physical node capacity
Kubernetes
API events may report only that Pod setup failed while kubelet logs contain the runtime or mount error. Use authorized node access.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Collect bounded kubelet logs on the node that actually failed
Kubernetes
A cluster can run containerd or CRI-O without Docker Engine. Docker CLI output may therefore describe an unrelated runtime.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Identify the actual Kubernetes container runtime before using Docker tools
Kubernetes
A successful API request can coexist with failing storage, networking or controllers. Read the documented readiness endpoint as one bounded signal.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Check API readiness without treating it as full cluster health
Kubernetes
Restoring application volumes alone does not restore Kubernetes API state. Identify control-plane ownership and supported snapshot recovery responsibilities.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Include etcd and encryption dependencies in a self-managed cluster recovery plan
Kubernetes
An unsupported version combination can complicate API behavior and upgrades. Capture versions rather than assuming every recent binary is compatible.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Check Kubernetes component compatibility before upgrading a client or node
Kubernetes
A manifest can fail because its API version was removed, the resource is optional or a CRD is absent. Query what the server serves.
Cluster Operations, Access & Incident Response1 นาทีในการอ่าน
อ่านบทความ : Investigate a missing Kubernetes resource kind through API discovery