Kubernetes Deployment Manifest

External

• https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.14/#deployment-v1-apps

Internal

• Kubernetes Deployments
• Common Manifest Elements

Example

apiVersion: apps/v1
kind: Deployment
metadata:
  name: archaeopteryx
  labels:
    color: blue
spec:
  replicas: 1
  selector:
    matchLabels:
      function: 'builder'
  strategy:
  revisionHistoryLimit:
  progressDeadlineSeconds:
  template:

.spec Elements

replicas

Specifies the number of desired pods. Defaults to 1.

selector

Specifies the label selector for pods. Existing ReplicaSets whose pods are selected by this will be the ones affected by this deployment. It must match the pod template's labels.

Selector Concepts

strategy

Specifies the deployment strategy to use to replace existing pods with new ones.

https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.14/#deploymentstrategy-v1-apps

revisionHistoryLimit

The number of old ReplicaSets to retain to allow rollback. Defaults to 10.