Termination grace period
A termination grace period is the time Kubernetes allows a Pod's containers to shut down gracefully before forcibly terminating them.
Kubernetes in Action, Second Edition
The terminationGracePeriodSeconds field specifies the default number of seconds Kubernetes allows a pod's containers to terminate gracefully.
- How it is used
- Controls how long Kubernetes lets a container exit gracefully before forcing termination.
- How deep it goes
- Explains hooks, SIGTERM, KILL, defaults, restart behavior, and deletion-period overrides.
- Examples
- Uses the kiada-ssl pod, a five-second manifest, kubectl deletion, and a SIGTERM handler.
- What you can do after
- Operate Kubernetes shutdowns by configuring grace periods and diagnosing applications that ignore SIGTERM.
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Kubernetes for Developers
A termination grace period is the amount of time Kubernetes allows a Pod to terminate gracefully before forced termination.
- How it is used
- Protects in-flight requests and tasks during Pod replacement, node upgrades, and other disruptions.
- How deep it goes
- Explains SIGTERM handling, workload-specific durations, and a 120-second configuration, but not the full termination internals.
- Examples
- Uses a Python queue worker that stops accepting jobs and receives a 120-second termination window.
- What you can do after
- Operate/configure Kubernetes workloads to drain current work safely during termination.
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Related concepts
- containerconfigures · A software container is an isolated execution environment that packages an application and its dependencies while sharing the host operating system kernel.
- graceful shutdownconfigures · Graceful shutdown is an orderly termination procedure that stops accepting new work, allows in-progress work to complete, and performs necessary cleanup before exit.
- Kubernetes Deploymentconfigures · A Kubernetes Deployment is a declarative API resource that manages the desired state, scaling, and updates of a replicated application workload.
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