helm-change-config.yaml - CI&CD

####需要根据实际修改以下参数
	- CONTEXT：工作区需要更改的git项目目录，这个git必须是argocd监听的项目
	- CONFIG_FILE：deployment资源定义文件名，必须是位于argocd设置的`path`下
	- EXPRESSION：yq表达式，

---
	vim helm-change-config.yaml
---
    apiVersion: tekton.dev/v1beta1
    kind: Task
    metadata:
      name: config-change
      namespace: default
    spec:
      description: >-
        This task can be used to replace fields in YAML files. For example for altering helm charts on GitOps repos.
      workspaces:
        - name: source
          description: A workspace that contains the file which needs to be altered.
      params:
        - name: CONFIG_FILE
          type: string
          description: A config file
        - name: EXPRESSION
          type: string
          description: The yq expression to apply. Can be used to replace yaml fields.
        - description: The project name.
          name: CONTEXT
          type: string
      steps:
        - name: replace-in-yaml
          image: 192.168.31.49:81/library/tool-image:1.0.0
          securityContext:
             runAsUser: 0
          workingDir: $(workspaces.source.path)/$(params.CONTEXT)
          imagePullPolicy: IfNotPresent
          script: |
            #yq eval -i '(.image.tag)|="1.2.8"' values.yaml
            yq eval -i  "$(params.EXPRESSION)" "$(params.CONFIG_FILE)"
            #yq --version
		
---
##Taskrun
	vim helm-change-config-task-run.yaml
---
    apiVersion: tekton.dev/v1beta1
    kind: TaskRun
    metadata:
      name: helm-change-config-task-run
      namespace: default
    spec:
      params:
      - name: CONFIG_FILE
        value: values.yaml
      - name: EXPRESSION
        #value: (.image.tag.[]|select(.name == \"api\").image)|="新构建的镜像"
        value: (.image.tag)|=\"1.3.0\"
      - name: CONTEXT
        value: testnginx
      resources: {}
      serviceAccountName: default
      taskRef:
        kind: Task
        name: config-change
      timeout: 1h0m0s
      #workspaces:
      #- name: output
      #  volumeClaimTemplate:
      #    spec:
      #      #storageClassName: storage01
      #      accessModes:
      #      - ReadWriteOnce
      #      resources:
      #        requests:
      #          storage: 10Gi
    
      workspaces:
      - name: source
        persistentVolumeClaim:
          claimName: pvc-acf7964944     #这里要修改为helm-git-clone后生成的pvc名称