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[Argo-Workflows] Lesson3: Argo CLI and Input Parameters

Posted on January 6, 2022January 7, 2022 By nim No Comments on [Argo-Workflows] Lesson3: Argo CLI and Input Parameters

Bài của chúng ta hôm nay là sử dụng Argo CLI trên máy client và đưa data vào input Workflows

Contents

  • Install Argo CLI to your machine.
  • Input Parameters

Install Argo CLI to your machine.

Đâu tiên chúng ta cài đặt và tìm hiều Argo CLI
https://github.com/argoproj/argo-workflows/releases

Nếu như mình run trên linux:

# Download the binary
curl -sLO https://github.com/argoproj/argo-workflows/releases/download/v3.2.6/argo-linux-amd64.gz

# Unzip
gunzip argo-linux-amd64.gz

# Make binary executable
chmod +x argo-linux-amd64

# Move binary to path
mv ./argo-linux-amd64 /usr/local/bin/argo

# Test installation
argo version

Input Parameters

Ý tưởng là chúng đưa data vào file yaml workflows và truyền vào trong pod

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  name: wf-dag-templates
spec:
  entrypoint: dag-templates
  arguments:
    parameters:
    - name: message1
      value: Task 1 is executed
    - name: message2
      value: Task 2 is executed
    - name: message3
      value: Task 3 is finished
    - name: message4
      value: That's it with tasks 4

  templates:
  - name: dag-templates
    inputs:
      parameters:
        - name: message1
        - name: message2
        - name: message3
        - name: message4
    dag:
      tasks:
      - name: Task1
        arguments:
          parameters: [{name: text, value: "{{inputs.parameters.message1}}"}]
        template: task-template
      - name: Task2
        arguments:
          parameters: [{name: text, value: "{{inputs.parameters.message2}}"}]
        template: task-template
        dependencies: [Task1]
      - name: Task3
        arguments:
          parameters: [{name: text, value: "{{inputs.parameters.message3}}"}]
        template: task-template
        dependencies: [Task1]
      - name: Delay
        template: deylay-template
        dependencies: [Task2, Task3]
      - name: Task4
        arguments:
          parameters: [{name: text, value: "{{inputs.parameters.message4}}"}]
        template: task-template
        dependencies: [Delay]

  - name: task-template
    inputs:
      parameters:
      - name: text
    script:
      image: python:3.8-slim
      command: [python]
      source: |
        p = "{{inputs.parameters.text}}"
        print(p)

  - name: deylay-template
    suspend:
      duration: "10s"

GIờ mình giải thích 1 chút

Vì chúng ta đã cái argo cli thì câu lệnh apply như sau:
argo -n argo submit wf-input-param.yaml

Bạn thấy output ra nhiều thông tin hơn.

root@work-space-u20:~/mylab-helm-chart/argo-wfs/lesson4# argo -n argo submit wf-input-param.yaml 
Name:                wf-dag-templates
Namespace:           argo
ServiceAccount:      default
Status:              Pending
Created:             Thu Jan 06 16:24:50 +0000 (now)
Progress:            
Parameters:          
  message1:          Task 1 is executed
  message2:          Task 2 is executed
  message3:          Task 3 is finished
  message4:          That's it with tasks 4

This workflow does not have security context set. You can run your workflow pods more securely by setting it.
chúng ta viewlog các task sem có j đặc biệt
task 1 print data của task 1
Các này show log của tất cả các pod python
ArgoWorkflows

Post navigation

Previous Post: [Spinnaker/K8s] Add many Kubernetes clusters into spinnaker.
Next Post: [Argo-Workflows] Lesson4: Script result – receive the output result of another task to make the input parameter.

More Related Articles

[ArgoWorkflows] Lesson 1: Installing Awgo-WorkFlows by the helm-chart and Demo a few simple templates. ArgoWorkflows
[Argo-Workflows] Lesson5: Output Parameter ArgoWorkflows
[ArgoWorkflows] Lesson2: Demo Steps Template and DAG Template on ArgoWorkflows ArgoWorkflows
[Argo-Workflows] Lesson4: Script result – receive the output result of another task to make the input parameter. ArgoWorkflows

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