# Kubernetes Pod

> A Pod is the smallest deployable unit of Kubernetes: one or more containers that share an IP address, ports and volumes and are scheduled together.

- Source: https://www.itwonderlab.com/kubernetes-pod/
- Published: 2026-09-29
- Updated: 2026-09-29
- Author: Javier Ruiz Jiménez (https://www.javierruizjimenez.com/)
- Site: IT Wonder Lab (https://www.itwonderlab.com/)

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A **Pod** wraps one or more containers that run on the same node and share a network namespace (one IP, `localhost` between them) and volumes. Pods are disposable: when one dies it is replaced by a new one with a new IP, which is why controllers and [Services](https://www.itwonderlab.com/kubernetes-service/) exist. Part of [Kubernetes](https://www.itwonderlab.com/kubernetes/).

### Key concepts

- **Sidecar and init containers**: helpers that run next to or before the main container.
- **Phases**: Pending, Running, Succeeded, Failed. Container states: Waiting, Running, Terminated.
- **Controllers**: a [Deployment](https://www.itwonderlab.com/kubernetes-deployment/) creates and replaces pods for you.
- **Probes and resources**: health checks and CPU and memory settings, see [probes and limits](https://www.itwonderlab.com/kubernetes-probes-resource-limits/).

### Learn it

Create them through [Pods and Deployments](https://www.itwonderlab.com/kubernetes-deployments-pods-rolling-updates/) and fix the failures with [How to debug Kubernetes](https://www.itwonderlab.com/how-to-debug-kubernetes/), [CrashLoopBackOff](https://www.itwonderlab.com/kubernetes-crashloopbackoff/), [ImagePullBackOff](https://www.itwonderlab.com/kubernetes-imagepullbackoff/) and [Pending](https://www.itwonderlab.com/kubernetes-pod-pending/).