Tekton

Question

我正在寻找一种方法（如果存在）将 Kubernetes 集群中的 Tekton 任务运行链接到 GitHub 个步骤，以便我可以在 GitHub 中标记所需的步骤并且只有通过时才允许 PR 合并。

我知道 Tekton 触发器，它解决了问题的另一部分，即对 GitHub 中的事件做出反应，例如创建新的拉取请求或在 master 分支上合并。但是 Tekton 是否能够按照我期望的方式调用 GitHub API？

Answer 1

您正在寻找的是可以将状态从 PipelineRun 报告回 GitHub 的东西。

这可以通过几种不同的方式完成。一种方法是改用 commit--status-tracker, however it seem to use the "older" concept with PipelineResources, so I would recommend to use e.g. GitHub App Notifier，尽管它看起来很新。

Answer 2

另一种方法是使用 github-set-status Task from Tekton Hub, which is quite easy to use IMHO. Integrating GitLab we have had good experience with the counterpart gitlab-set-status. on how to set the STATE of the github-set-status Task according to the Tekton Pipeline aggregated status and when expression guarded finally Tasks。

我还概述了一个示例 pipeline.yaml 并从提到的答案中得出（未经测试！）。它利用 git-clone and Cloud Native buildpacks 任务（也来自 Tekton Hub）提供完整示例：

apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: buildpacks-test-pipeline
spec:
  params:
    - name: IMAGE
      type: string
      description: image URL to push
    - name: SOURCE_URL
      type: string
      description: A git repo url where the source code resides.
    - name: REPO_PATH_ONLY
      type: string
      description: GitHub group & repo name only (e.g. jonashackt/microservice-api-spring-boot)
    - name: SOURCE_REVISION
      description: The branch, tag or SHA to checkout.
      default: ""
    - name: GITHUB_HOST
      type: string
      description: Your GitHub host only (e.g. api.github.com)
    - name: TEKTON_DASHBOARD_HOST
      type: string
      description: The Tekton dashboard host name only

  workspaces:
    - name: source-workspace # Directory where application source is located. (REQUIRED)
    - name: cache-workspace # Directory where cache is stored (OPTIONAL)
  tasks:
    - name: fetch-repository # This task fetches a repository from github, using the `git-clone` task you installed
      taskRef:
        name: git-clone
      workspaces:
        - name: output
          workspace: source-workspace
      params:
        - name: url
          value: "$(params.SOURCE_URL)"
        - name: revision
          value: "$(params.SOURCE_REVISION)"
        - name: subdirectory
          value: ""
        - name: deleteExisting
          value: "true"
    - name: buildpacks # This task uses the `buildpacks` task to build the application
      taskRef:
        name: buildpacks
      runAfter:
        - fetch-repository
      workspaces:
        - name: source
          workspace: source-workspace
        - name: cache
          workspace: cache-workspace
      params:
        - name: APP_IMAGE
          value: "$(params.IMAGE)"
        - name: BUILDER_IMAGE
          value: paketobuildpacks/builder:base # This is the builder we want the task to use (REQUIRED)
  finally:
    - name: report-pipeline-failed-to-github
      when:
        - input: $(tasks.status)
          operator: in
          values: [ "Failed", "None" ] # see aggregated status https://tekton.dev/docs/pipelines/pipelines/#using-aggregate-execution-status-of-all-tasks
      taskRef:
        name: "github-set-status"
      params:
        - name: "STATE"
          value: "failed"
        - name: "GITHUB_HOST_URL"
          value: "$(params.GITHUB_HOST)"
        - name: "REPO_FULL_NAME"
          value: "$(params.REPO_PATH_ONLY)"
        - name: "GITHUB_TOKEN_SECRET_NAME"
          value: "github-api-secret"
        - name: "GITHUB_TOKEN_SECRET_KEY"
          value: "token"
        - name: "SHA"
          value: "$(params.SOURCE_REVISION)"
        - name: "TARGET_URL"
          value: "$(params.TEKTON_DASHBOARD_HOST)/#/namespaces/default/pipelineruns/$(context.pipelineRun.name)"
        - name: "CONTEXT"
          value: "tekton-pipeline"
        - name: "DESCRIPTION"
          value: "An error occurred building your commit in Tekton"
    - name: report-pipeline-success-to-github
      when:
          - input: $(tasks.status)
            operator: in
            values: [ "Succeeded", "Completed" ] # see aggregated status https://tekton.dev/docs/pipelines/pipelines/#using-aggregate-execution-status-of-all-tasks
      taskRef:
        name: "github-set-status"
      params:
        - name: "STATE"
          value: "success"
        - name: "GITHUB_HOST_URL"
          value: "$(params.GITHUB_HOST)"
        - name: "REPO_FULL_NAME"
          value: "$(params.REPO_PATH_ONLY)"
        - name: "GITHUB_TOKEN_SECRET_NAME"
          value: "github-api-secret"
        - name: "GITHUB_TOKEN_SECRET_KEY"
          value: "token"
        - name: "SHA"
          value: "$(params.SOURCE_REVISION)"
        - name: "TARGET_URL"
          value: "$(params.TEKTON_DASHBOARD_HOST)/#/namespaces/default/pipelineruns/$(context.pipelineRun.name)"
        - name: "CONTEXT"
          value: "tekton-pipeline"
        - name: "DESCRIPTION"
          value: "Finished building your commit in Tekton"

Answer 3

我不确定 TaskRuns，但您可以通过 lighthouse.

至少使用一个 PipelineRun

如果你有一个 PR 打开，它会在 PR 中反映相应的 PipelineRun 的状态，并告知你管道和批准状态：

screenshot

Tekton - Github 集成

Tekton - Github integration

github