DevOps Glossary

Discover and learn all DevOps terms here.

Kubernetes ConfigMap

A Kubernetes ConfigMap is an API object storing non-sensitive configuration for pods, separate from container images.

Kubernetes CronJob

A Kubernetes CronJob creates Jobs on a schedule to automate recurring tasks inside a cluster, like backups or cleanup.

Kubernetes Custom Resource Definition (CRD)

Kubernetes CRD extends the Kubernetes API with custom resource types, letting teams manage cluster or app state declaratively.

Kubernetes DaemonSet

Kubernetes DaemonSet is a workload API object that runs one pod on each selected node for cluster-wide node agents.

Kubernetes Deployment

A Kubernetes Deployment is a workload API object that manages replicated pods and rolling updates in a cluster.

Kubernetes EndpointSlice

Kubernetes EndpointSlice groups Service endpoints into slices so controllers and proxies can route traffic to pods.

Kubernetes Gateway API

Kubernetes Gateway API defines Kubernetes resources for managing service traffic routing into clusters with gateway, route, and policy objects.

Kubernetes HorizontalPodAutoscaler (HPA)

Kubernetes HPA automatically scales pod replicas based on metrics like CPU to match application demand.

Kubernetes Ingress

A Kubernetes resource that tells the cluster how to route incoming web traffic from outside to the right internal Service using rules like hostnames and paths.

Kubernetes Init Container

A Kubernetes init container runs before app containers in a pod to prepare dependencies, config, or setup tasks.

Kubernetes Job

A Kubernetes Job runs one or more pods to completion for finite tasks, such as batch processing inside a cluster.

Kubernetes LimitRange

Kubernetes LimitRange is a namespace policy setting CPU and memory requests or limits for pods at admission time.

Kubernetes Liveness Probe

A Kubernetes liveness probe checks whether a container is alive and restarts it when the app stops responding.

Kubernetes MutatingAdmissionWebhook

Kubernetes MutatingAdmissionWebhook is a webhook that edits API requests before storage to set defaults or labels.

Kubernetes Namespace

A Kubernetes Namespace is a logical partition in a cluster used to group resources and scope access, policies, or quotas.

Kubernetes NetworkPolicy

Kubernetes NetworkPolicy sets rules for pod traffic in a cluster, controlling which pods can connect to other pods.

Kubernetes Network Policy

Rules that say which pods in a Kubernetes cluster are allowed to talk to which other pods or services over the network.

Kubernetes Node

A Kubernetes Node is a worker machine in a cluster that runs pods and provides CPU, memory, and networking for workloads.

Kubernetes Operator

A Kubernetes Operator is a controller that automates app lifecycle management in a cluster using custom resources.

Kubernetes Operators

Kubernetes-native controllers that run an app for you by automating deploys, configuration, and ongoing operations using custom resources.

Kubernetes PersistentVolumeClaim (PVC)

A PersistentVolumeClaim (PVC) is a storage request that binds a pod to a PersistentVolume for durable data.

Kubernetes PersistentVolume (PV)

A Kubernetes PV is a cluster storage resource that lets pods keep data beyond restarts through bound claims.

Kubernetes Pod

A Kubernetes Pod is the smallest deployable cluster unit, running one or more containers that share a network.

Kubernetes Pod Affinity and Anti-Affinity

Kubernetes Pod Affinity and Anti-Affinity are scheduling rules that place pods together or apart using labels and topology.