Kubernetes YAML Cheat Sheet/Basic Deployment YAML

Run a replicated stateless workload.

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Section: Deployments

Basic Deployment YAML

yaml

yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: api
spec:
  replicas: 3
  selector:
    matchLabels:
      app: api
  template:
    metadata:
      labels:
        app: api
    spec:
      containers:
        - name: api
          image: ghcr.io/example/api:1.0.0
          ports:
            - containerPort: 8080

Explanation

Deployments manage ReplicaSets and provide declarative rollout behavior for Pods.

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Mark failed rollouts sooner.

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See whether the new ReplicaSet becomes ready.

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Smallest practical Pod YAML shape.

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