Scheduling, probes, workloads and the failure modes that come with them.
2 items at intermediate level · all topics
Explain the architectural difference between AWS ECS Fargate and Amazon EKS (Elastic Kubernetes Service).
ECS and EKS are both orchestrators. Fargate isn't: it's a compute mode that either one can run on, so all four combinations exist. The real comparison is ECS vs EKS on who operates what, and Fargate vs EC2 on whether you want to own nodes at all.
A pod is stuck in Pending for 10 minutes in production. Walk me through how you diagnose it.
Pending means the scheduler hasn't placed the pod on a node. The cause is almost always resources, node selection constraints, or an unbound volume, and `kubectl describe pod` tells you which within seconds if you read the Events section rather than guessing.