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workflow-rbac.md

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Workflow RBAC

All pods in a workflow run with the service account specified in workflow.spec.serviceAccountName, or if omitted, the default service account of the workflow's namespace. The amount of access which a workflow needs is dependent on what the workflow needs to do. For example, if your workflow needs to deploy a resource, then the workflow's service account will require 'create' privileges on that resource.

Warning: We do not recommend using the default service account in production. It is a shared account so may have permissions added to it you do not want. Instead, create a service account only for your workflow.

The minimum for the executor to function:

For >= v3.4:

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: executor
rules:
  - apiGroups:
      - argoproj.io
    resources:
      - workflowtaskresult
    verbs:
      - create
      - patch

For <= v3.3 use.

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: executor
rules:
  - apiGroups:
      - ""
    resources:
      - pods
    verbs:
      - get
      - patch

Warning: For many organisations, it may not be acceptable to give a workflow the pod patch permission, see #3961

If you are not using the emissary, you'll need additional permissions. See executor for suitable permissions.