daemoned-stateful-set-with-service.yaml

# This example shows how to create a stateful set with an attached service to use as a daemoned server.
# It is complete with a tear-down handler, and a wait step that ensures the stateful set is ready before continuing.
# Note that the service account that Argo uses to run this must have sufficient permissions to create, delte, and get
# the resources.
apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: daemoned-stateful-set-with-service-
spec:
  entrypoint: create-wait-and-test
  onExit: delete

  templates:
    - name: create-wait-and-test
      steps:
        - - name: create-service
            template: create-service
          - name: create-stateful-set
            template: create-stateful-set

        - - name: wait-stateful-set
            template: wait-stateful-set

        - - name: test
            template: test

    - name: delete    # This is called as an onExit handler
      steps:
        - - name: delete-service
            template: delete-service
          - name: delete-stateful-set
            template: delete-stateful-set

    - name: create-service
      resource:
        action: create
        manifest: |
          apiVersion: v1
          kind: Service
          metadata:
            name: nginx
            labels:
              app: nginx
          spec:
            ports:
              - port: 80
                name: web
            clusterIP: None
            selector:
              app: nginx

    - name: create-stateful-set
      resource:
        action: create
        manifest: |
          apiVersion: apps/v1
          kind: StatefulSet
          metadata:
            name: web
          spec:
            selector:
              matchLabels:
                app: nginx # has to match .spec.template.metadata.labels
            serviceName: "nginx"
            template:
              metadata:
                labels:
                  app: nginx # has to match .spec.selector.matchLabels
              spec:
                terminationGracePeriodSeconds: 10
                containers:
                  - name: nginx
                    image: k8s.gcr.io/nginx-slim:0.8
                    ports:
                      - containerPort: 80
                        name: web

    - name: wait-stateful-set
      resource:
        action: get
        successCondition: status.readyReplicas == 1
        manifest: |
          apiVersion: apps/v1
          kind: StatefulSet
          metadata:
            name: web

    - name: test
      container:
        image: curlimages/curl:latest
        command: [sh, -c]
        args: ["curl nginx"]

    - name: delete-service
      resource:
        action: delete
        flags: ["--ignore-not-found"]
        manifest: |
          apiVersion: v1
          kind: Service
          metadata:
            name: nginx

    - name: delete-stateful-set
      resource:
        action: delete
        flags: ["--ignore-not-found"]
        manifest: |
          apiVersion: apps/v1
          kind: StatefulSet
          metadata:
            name: web