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DevOps · Concept

Deployment

A Deployment declares how many application Pods should run and which Pod template to use. Kubernetes creates ReplicaSets and updates Pods until they match that declaration.

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Syntax

apiVersion: apps/v1
kind: Deployment
metadata:
  name: <name>
spec:
  replicas: <number>
  selector:
    matchLabels: <labels>
  template:
    metadata:
      labels: <labels>
    spec:
      containers: [...]

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  • ReplicaSet
  • Pod
  • PodTemplateSpec
  • RollingUpdate
  • kubectl rollout status
  • kubectl set image

Source: Deployments | Kubernetes. Checked 2026-11-03.