daemon-nginx.yaml

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: daemon-nginx-
spec:
  entrypoint: daemon-nginx-example

  templates:
  - name: daemon-nginx-example
    steps:
    - - name: nginx-server
        template: nginx-server
    - - name: nginx-client
        template: nginx-client
        arguments:
          parameters:
          - name: server-ip
            value: "{{steps.nginx-server.ip}}"

  - name: nginx-server
    daemon: true
    container:
      image: nginx:1.13
      readinessProbe:
        httpGet:
          path: /
          port: 80
        initialDelaySeconds: 2
        timeoutSeconds: 1

  - name: nginx-client
    inputs:
      parameters:
      - name: server-ip
    container:
      image: appropriate/curl:latest
      command: ["/bin/sh", "-c"]
      args: ["echo curl --silent -G http://{{inputs.parameters.server-ip}}:80/ && curl --silent -G http://{{inputs.parameters.server-ip}}:80/"]