Cannot use {{ item }} variable in template name

[CRASH-Tech]

Checklist

* [X] Double-checked my configuration. * [X] Tested using the latest version. * [X] Used the Emissary executor. ## Summary I'm trying to use {{ item }} variable to set name of used tamplate, but seems {{ item }} renders after dag step There is an example: ``` apiVersion: argoproj.io/v1alpha1 kind: Workflow metadata: name: test spec: entrypoint: ci arguments: parameters: - name: os-list value: | [ { "image": "debian", "tag": "9.1" }, { "image": "debian", "tag": "8.9" }, { "image": "alpine", "tag": "3.6" }, { "image": "ubuntu", "tag": "17.10" } ] templates: - name: ci inputs: parameters: - name: os-list dag: tasks: - name: publish withParam: "{{inputs.parameters.os-list}}" templateRef: name: argocd-publish template: "{{ item.image }}" ``` and error: `templates.ci.tasks.publish template reference argocd-publish.{{ item.image }} not found` argo-workflows version: 3.3.8 ---

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[juliev0]

So, all of the examples I've seen of "withParam" have involved the use of the {{item}} in arguments. Have you seen anything indicating that it can be used elsewhere? If not, I wonder if this should be an enhancement or bug?

[CRASH-Tech]

So, all of the examples I've seen of "withParam" have involved the use of the {{item}} in arguments. Have you seen anything indicating that it can be used elsewhere? If not, I wonder if this should be an enhancement or bug?

Hello, of couse, this is my case:

I'm using two templates, for manual and auto deploy(because I can't use "if" statement inside manifest section :(( )

apiVersion: argoproj.io/v1alpha1
kind: ClusterWorkflowTemplate
metadata:
  name: argocd-publish
spec:
  templates:
    - name: auto
      inputs:
        parameters:
          - name: project
          - name: app
          - name: env
          - name: values_file
          - name: git_url
          - name: git_ref
          - name: cluster
          - name: namespace
      resource:
        action: apply
        successCondition: status.sync.status == Synced, status.health.status == Healthy
        manifest: |
          apiVersion: argoproj.io/v1alpha1
          kind: Application
          metadata:
            finalizers:
              - resources-finalizer.argocd.argoproj.io
            labels:
              project: "{{ inputs.parameters.project }}"
            name: "{{ inputs.parameters.project }}-{{ inputs.parameters.env }}-{{ inputs.parameters.app }}"
            namespace: "{{ $.Release.Namespace }}"
          spec:
            destination:
              name: "{{ inputs.parameters.cluster }}"
              namespace: "{{ inputs.parameters.namespace }}"
            project: "{{ inputs.parameters.project }}"
            source:
              path: .
              plugin:
                env:
                  - name: DEPLOY_NAMESPACE
                    value: "deploy-{{ inputs.parameters.project }}"
                  - name: DEPLOY_SECRET
                    value: "deploy-{{ inputs.parameters.project }}"
                  - name: WERF_ENV
                    value: "{{ inputs.parameters.env }}"
                  - name: "WERF_VALUES_{{ inputs.parameters.env }}"
                    value: "{{ inputs.parameters.values_file }}"
                  - name: WERF_RELEASE
                    value: "{{ inputs.parameters.env }}-{{ inputs.parameters.app }}"
                name: werf
              repoURL: "{{ inputs.parameters.git_url }}"
              targetRevision: "{{ inputs.parameters.git_ref }}"
            syncPolicy:
              automated: {}
              syncOptions:
                - CreateNamespace=true
    - name: manual
      inputs:
        parameters:
          - name: project
          - name: app
          - name: env
          - name: values_file
          - name: git_url
          - name: git_ref
          - name: cluster
          - name: namespace
      resource:
        action: apply
        manifest: |
          apiVersion: argoproj.io/v1alpha1
          kind: Application
          metadata:
            finalizers:
              - resources-finalizer.argocd.argoproj.io
            labels:
              project: "{{ inputs.parameters.project }}"
            name: "{{ inputs.parameters.project }}-{{ inputs.parameters.env }}-{{ inputs.parameters.app }}"
            namespace: "{{ $.Release.Namespace }}"
          spec:
            destination:
              name: "{{ inputs.parameters.cluster }}"
              namespace: "{{ inputs.parameters.namespace }}"
            project: "{{ inputs.parameters.project }}"
            source:
              path: .
              plugin:
                env:
                  - name: DEPLOY_NAMESPACE
                    value: "deploy-{{ inputs.parameters.project }}"
                  - name: DEPLOY_SECRET
                    value: "deploy-{{ inputs.parameters.project }}"
                  - name: WERF_ENV
                    value: "{{ inputs.parameters.env }}"
                  - name: "WERF_VALUES_{{ inputs.parameters.env }}"
                    value: "{{ inputs.parameters.values_file }}"
                  - name: WERF_RELEASE
                    value: "{{ inputs.parameters.env }}-{{ inputs.parameters.app }}"
                name: werf
              repoURL: "{{ inputs.parameters.git_url }}"
              targetRevision: "{{ inputs.parameters.git_ref }}"
            syncPolicy:
              syncOptions:
                - CreateNamespace=true

Next, inside webhook I send deploy strategy (auto for dev, manual for prod )

apiVersion: argoproj.io/v1alpha1
kind: ClusterWorkflowTemplate
metadata:
  name: ci-pipeline-git-tag
spec:
  entrypoint: ci-pipeline-git-tag
  templates:
    - name: ci-pipeline-git-tag
      inputs:
        parameters:
          - name: project
          - name: git_url
          - name: git_ref
          - name: git_tag
          - name: app
      dag:
        tasks:
          - name: get-envs
            templateRef:
              name: werf-get-envs
              template: werf-get-envs
              clusterScope: true
            arguments:
              parameters:
              - name: project
                value: "{{ inputs.parameters.project }}"
              - name: gitUrl
                value: "{{ inputs.parameters.git_url }}"
              - name: gitRef
                value: "{{ inputs.parameters.git_ref }}"
          - name: publish-manual
            dependencies:
              - get-envs
            when: "{{ item.syncPolicy }} == 'manual'"
            withParam: "{{ tasks.get-envs.outputs.result }}"
            templateRef:
              name: argocd-publish
              template: "manual"
              clusterScope: true
            arguments:
              parameters:
              - name: project
                value: "{{ inputs.parameters.project }}"
              - name: app
                value: "{{ inputs.parameters.app }}"
              - name: env
                value: "{{ item.env }}"
              - name: values_file
                value: "{{ item.values_file }}"
              - name: git_url
                value: "{{ inputs.parameters.git_url }}"
              - name: git_ref
                value: "{{ inputs.parameters.git_ref }}"
              - name: cluster
                value: "{{ item.cluster }}"
              - name: namespace
                value: "{{ item.namespace }}"
          - name: publish-auto
            dependencies:
              - get-envs
            when: "{{ item.syncPolicy }} == 'auto'"
            withParam: "{{ tasks.get-envs.outputs.result }}"
            templateRef:
              name: argocd-publish
              template: "auto"
              clusterScope: true
            arguments:
              parameters:
              - name: project
                value: "{{ inputs.parameters.project }}"
              - name: app
                value: "{{ inputs.parameters.app }}"
              - name: env
                value: "{{ item.env }}"
              - name: values_file
                value: "{{ item.values_file }}"
              - name: git_url
                value: "{{ inputs.parameters.git_url }}"
              - name: git_ref
                value: "{{ inputs.parameters.git_ref }}"
              - name: cluster
                value: "{{ item.cluster }}"
              - name: namespace
                value: "{{ item.namespace }}"

As you can see, I need to use two steps with "when" for auto and dev. It's looks weird. It would be cool if i could use just one step and set template name from webhook value. Like this:

- name: publish
  dependencies:
    - get-envs
  withParam: "{{ tasks.get-envs.outputs.result }}"
  templateRef:
    name: argocd-publish
    template: "{{ item.syncPolicy }}"
    clusterScope: true
  arguments:
    parameters:
    - name: project
      value: "{{ inputs.parameters.project }}"
    - name: app
      value: "{{ inputs.parameters.app }}"
    - name: env
      value: "{{ item.env }}"
    - name: values_file
      value: "{{ item.values_file }}"
    - name: git_url
      value: "{{ inputs.parameters.git_url }}"
    - name: git_ref
      value: "{{ inputs.parameters.git_ref }}"
    - name: cluster
      value: "{{ item.cluster }}"
    - name: namespace
      value: "{{ item.namespace }}"

[sarabala1979]

"{{ item.image }}" can be only substituted in arguments. @CRASH-Tech I changed this issue into enhancement. Do you like to contribute this feature?

[CRASH-Tech]

"{{ item.image }}" can be only substituted in arguments. @CRASH-Tech I changed this issue into enhancement. Do you like to contribute this feature?

No, I can't.

[cpendery]

@sarabala1979 I'd be happy to contribute support for this feature. Can you assign me?

[juliev0]

@sarabala1979 I'd be happy to contribute support for this feature. Can you assign me?

Thanks for volunteering! Just assigned you

[ibacalu]

Any news on this?

[cpendery]

Any news on this?

@ibacalu sorry, I'm still working on it. If you need it urgently, please feel free to take over the issue

[AndriySidliarskiy]

maybe you have a date when you plan to realize this feature? @cpendery

[cpendery]

Hi @AndriySidliarskiy, a different contributor will be taking over this issue once it's prioritized