Argo Workflows 中没有直接提供获取上一个/下一个调度时间的内置变量。但可以使用 Cron Workflow 管理器来实现。

下面是一个示例 Cron Workflow，它运行每分钟一次，输出上一个和下一个调度时间：

apiVersion: argoproj.io/v1alpha1
kind: CronWorkflow
metadata:
  name: example-cron
spec:
  schedule: "*/1 * * * *"
  startingDeadlineSeconds: 30
  concurrencyPolicy: Forbid
  workflowSpec:
    entrypoint: main
    templates:
      - name: main
        dag:
          tasks:
            - name: get-time
              template: get-time
              arguments:
                parameters:
                  - name: curr_time
                    value: "{{time.Now.UTC.Format \"2006-01-02T15:04:05Z\"}}"
            - name: print-time
              template: print-time
              dependencies:
                - get-time
              arguments:
                parameters:
                  - name: curr_time
                    value: "{{tasks.get-time.outputs.parameters.curr_time}}"
                  - name: prev_time
                    value: "{{workflow.parameters.prev_time}}"
                  - name: next_time
                    value: "{{workflow.parameters.next_time}}"
      - name: get-time
        inputs:
          parameters:
            - name: curr_time
              value: ""
        outputs:
          parameters:
            - name: curr_time
              value: "{{inputs.parameters.curr_time}}"
      - name: print-time
        inputs:
          parameters:
            - name: curr_time
              value: ""
            - name: prev_time
              value: ""
            - name: next_time
              value: ""
        container:
          image: busybox
          command: [sh, -c]
          args: ["echo \"Current time: {{inputs.parameters.curr_time}}\nPrevious time: {{inputs.parameters.prev_time}}\nNext time: {{inputs.parameters.next_time}}\""]
          env:
            - name: TZ
              value: "UTC"

这个 Cron Workflow 每分钟运行一次，使用 get-time 模板获取当前时间，并