argocd-example-apps/applicationset/progressive-sync.yaml at master · pjiang-dev/argocd-example-apps · GitHub

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apiVersion: argoproj.io/v1alpha1
kind: ApplicationSet
metadata:
  name: progressive-sync
  namespace: argocd
spec:
  generators:
    - matrix:
        generators:
          - list:
              elements:
                - env: dev
                - env: qa
                - env: prod
          - list:
              elements:
                - region: us-east
                - region: us-west
  strategy:
    type: RollingSync
    deletionOrder: Reverse
    rollingSync:
      steps:
        - matchExpressions:
            - key: env
              operator: In
              values: [dev]
          # maxUpdate: 100% (implicit default - all dev apps sync simultaneously)
        - matchExpressions:
            - key: env
              operator: In
              values: [qa]
          maxUpdate: 0 # Manual gate - requires manual sync via CLI or UI
        - matchExpressions:
            - key: env
              operator: In
              values: [prod]
          maxUpdate: 10% # Gradual rollout - with 2 apps, syncs 1 at a time
  template:
    metadata:
      name: 'appset-progressive-{{env}}-{{region}}'
      labels:
        env: '{{env}}'
        region: '{{region}}'
    spec:
      project: default
      source:
        repoURL: https://github.com/argoproj/argocd-example-apps
        targetRevision: HEAD
        path: lightweight/app-a
      destination:
        server: https://kubernetes.default.svc
        namespace: 'appset-progressive-{{env}}-{{region}}'
      syncPolicy:
        syncOptions:
          - CreateNamespace=true
        automated:
          enabled: false
        # NOTE: automated sync is disabled - RollingSync manages sync operations