Argo Workflow --- 如何周期运行一个脚本

本文介绍如何使用Argo Workflow来周期运行一个脚本,包括shell脚本和python脚本。

定义CronWorkflow配置文件

参考官网github.com/argoproj/ar…

python脚本定时任务yaml模版

apiVersion: argoproj.io/v1alpha1
kind: CronWorkflow
metadata:
  name: cron-python
spec:
  schedule: "* * * * *"
  timezone: "Asia/Shanghai"   # Default to local machine timezone
  startingDeadlineSeconds: 0
  concurrencyPolicy: "Replace"      # Default to "Allow"
  successfulJobsHistoryLimit: 4     # Default 3
  failedJobsHistoryLimit: 4         # Default 1
  suspend: false                    # Set to "true" to suspend scheduling
  workflowSpec:
    entrypoint: whalesay
    templates:
      - name: whalesay
        script:
          image: python:alpine3.6
          command: [python]
          source: |
            import random
            i = random.randint(1, 100)
            print(i)
            print("hello everybody!")

shell脚本定时任务yaml模版

apiVersion: argoproj.io/v1alpha1
kind: CronWorkflow
metadata:
  name: cron-shell
spec:
  schedule: "* * * * *"
  timezone: "Asia/Shanghai"   # Default to local machine timezone
  startingDeadlineSeconds: 0
  concurrencyPolicy: "Replace"      # Default to "Allow"
  successfulJobsHistoryLimit: 4     # Default 3
  failedJobsHistoryLimit: 4         # Default 1
  suspend: false                    # Set to "true" to suspend scheduling
  workflowSpec:
    entrypoint: whalesay
    templates:
      - name: whalesay
        script:
          image: docker/whalesay:latest
          command:
            - sh
          source: |
            echo "hello everybody!"

主要修改：

将python脚本内容放到容器镜像中

脚本目录添加Dockerfile

FROM python:3.7
WORKDIR /usr/src/app
COPY . .
RUN pip install -r requirements.txt
CMD ["onCallJob.py"]
ENTRYPOINT ["python3"]

docker build 得到镜像

docker build -t xxxxxx/oncallJob:v0.0.1 .
docker push xxxxxx/oncallJob:v0.0.1

编写CronWorkflow

apiVersion: argoproj.io/v1alpha1
kind: CronWorkflow
metadata:
  name: oncalljob
spec:
  schedule: "0 9 * * 1"
  timezone: "Asia/Shanghai"   # Default to local machine timezone
  startingDeadlineSeconds: 0
  concurrencyPolicy: "Replace"      # Default to "Allow"
  successfulJobsHistoryLimit: 4     # Default 3
  failedJobsHistoryLimit: 4         # Default 1
  suspend: false                    # Set to "true" to suspend scheduling
  workflowSpec:
    entrypoint: main
    templates:
      - name: main
        container:
          image: xxxxxx/oncallJob:v0.0.1
          imagePullPolicy: Always

container.image配置上面构建出的镜像

argo workflow的web页面提交yaml配置文件