pod-spec-yaml-patch.yaml

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: pod-spec-patch-
spec:
  entrypoint: whalesay
  arguments:
    parameters:
      - name: mem-limit
        value: 100Mi
  podSpecPatch: |
    containers:
      - name: main
        resources:
          limits:
            memory: "{{workflow.parameters.mem-limit}}"
  templates:
  - name: whalesay
    container:
      image: docker/whalesay:latest
      command: [cowsay]
      args: ["hello world"]