When is the Pods' status checked during their launch or operation?

The health check of Pods in Kubernetes is continuously performed during their startup and operation. Kubernetes controllers (such as kubelet on nodes) regularly poll the status of Pods to ensure they match the desired state.

Key points of the check:

• When a Pod starts, it checks whether the containers have successfully started (ContainerStatus).
• Readiness and Liveness probes are checked to determine if the Pod is ready to accept traffic and if it is alive.
• If a Pod fails, controllers can restart containers or recreate the Pod.

Thus, the health check occurs continuously and automatically to maintain application stability.