How to use artifacts - Container Service for Kubernetes - Alibaba Cloud Documentation Center

You can configure artifacts in workflow clusters to pass parameters through steps in a workflow. The output of a step is the input of another step. This helps you orchestrate complex workflow steps. This topic describes how to use Object Storage Service (OSS) as the artifact storage to pass parameters through steps in a workflow.

Prerequisites

OSS is activated. For more information, see Activate OSS.

Procedure

Configure OSS as the artifact storage. For more information, see Configuring Alibaba Cloud OSS.

Create a file named artifect-passing.yaml and add the following content to the file:

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: artifact-passing-
spec:
  entrypoint: artifact-example
  templates:
  - name: artifact-example
    steps:
    - - name: generate-artifact
        template: whalesay
    - - name: consume-artifact
        template: print-message
        arguments:
          artifacts:
          # bind message to the hello-art artifact.
          # generated by the generate-artifact step.
          - name: message
            from: "{{steps.generate-artifact.outputs.artifacts.hello-art}}"

  - name: whalesay
    container:
      image: docker/whalesay:latest
      command: [sh, -c]
      args: ["cowsay hello world | tee /tmp/hello_world.txt"]
    outputs:
      artifacts:
      # generate hello-art artifact from /tmp/hello_world.txt.
      # artifacts can be directories as well as files.
      - name: hello-art
        path: /tmp/hello_world.txt

  - name: print-message
    inputs:
      artifacts:
      # unpack the message input artifact.
      # and put it at /tmp/message.
      - name: message
        path: /tmp/message
    container:
      image: alpine:latest
      command: [sh, -c]
      args: ["cat /tmp/message"]

Run the following command to submit the workflow:
```
argo submit artifact-passing.yaml
```
Run the following command to query the status of the workflow:
```
argo list
```