Deploy one application to multiple namespaces within one cluster

[luismacosta]

Dear ArgoCD team,

I would like to know if is possible to deploy the same app, with same values, to multiple namespaces, using the same ApplicationSet.
I've tried this approach, without success. namespace: '{{"{{"}}namespace{{"}}"}}' is not recognising the namespaces list elements
Thanks in advance

Also tried with example from List Generator, but got the same error
Using the approach Dynamically generated elements, got the error ApplicationSet.argoproj.io "" is invalid: spec.generators[0].matrix.generators[1].list.elements: Required value
https://argo-cd.readthedocs.io/en/stable/operator-manual/applicationset/Generators-List/

[AnubhavSabarwal]

Could you try {{namespace}}

[luismacosta]

Thank you for your response
Yes, already tried that, but got the same error: namespaces "{{namespace}}" not found
Here is the yaml. The idea would be to deploy the app in both namespaces test1 and test2

apiVersion: argoproj.io/v1alpha1
kind: ApplicationSet
metadata:
  name: test
  namespace: argocd
spec:
  generators:
  - matrix:
      generators:
        - git:
            repoURL: https://github.com/<myrepo>/test.git
            revision: master
            directories:
            - path: <path>
  - list:
      elements:
      - namespace: test1
      - namespace: test2
  template:
    metadata:
      name: "test"
      finalizers:
        - resources-finalizer.argocd.argoproj.io
    spec:
      project: 'test'
      source:
        helm:
          valueFiles: ["values.yaml"]
          version: v3
        repoURL: https://github.com/<myrepo>/test.git
        targetRevision: master
        path: "test"
      destination:
        name: "test"
        namespace: "{{namespace}}"
      syncPolicy:
        automated:
          prune: true
          allowEmpty: true
          selfHeal: true
        retry:
          backoff:
            duration: "5s"
            factor: 2
            maxDuration: "3m0s"
          limit: 5
        syncOptions:
          - Validate=true
          - CreateNamespace=false
          - ApplyOutOfSyncOnly=true

[kostis-codefresh]

I think you might need single quotes.

Here is one of my own examples that works just fine https://github.com/codefresh-contrib/gitops-cert-level-2-examples/blob/main/application-sets/my-application-sets/single-app-many-times.yml