Argo Workflows 4

1.简单的例子

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: container-
spec:
  entrypoint: main
  templates:
  - name: main
    container:
      image: docker/whalesay
      command: [cowsay]
      args: ["hello world"]

创建之后的效果

可使用的标签取决于模板类型，您可以使用许多全局标签，例如 {{workflow.name}}

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: container-
spec:
  entrypoint: main
  templates:
  - name: main
    container:
      image: docker/whalesay
      command: [cowsay]
      args: ["hello {{workflow.name}}" ]

效果

2.DAG模板例子

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: dag-
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          - name: a
            template: whalesay
          - name: b
            template: whalesay
            dependencies:
              - a
    - name: whalesay
      container:
        image: docker/whalesay
        command: [cowsay]
        args: ["hello world"]

DAG有两个任务：“a”和“B”。两者都运行“whalesay”模板，但由于“B”依赖于“a”，因此只有在“a”成功完成后，它才会启动。

循环

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: with-items-
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          - name: print-message
            template: whalesay
            arguments:
              parameters:
                - name: message
                  value: "{{item}}"
            withItems:
              - "hello world"
              - "goodbye world"

    - name: whalesay
      inputs:
        parameters:
          - name: message
      container:
        image: docker/whalesay
        command: [cowsay]
        args: ["{{inputs.parameters.message}}"]

循环带序列

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: with-sequence-
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          - name: print-message
            template: whalesay
            arguments:
              parameters:
                - name: message
                  value: "{{item}}"
            withSequence:
              count: 5

    - name: whalesay
      inputs:
        parameters:
          - name: message
      container:
        image: docker/whalesay
        command: [cowsay]
        args: ["{{inputs.parameters.message}}"]

需要在某件事完成后执行一个任务，可以使用退出处理程序。使用 onExit 指定退出处理程序：

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: exit-handler-
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          - name: a
            template: whalesay
            onExit: tidy-up

    - name: whalesay
      container:
        image: docker/whalesay
        command: [cowsay]

    - name: tidy-up
      container:
        image: docker/whalesay
        command: [cowsay]
        args: ["tidy up!"]