小知识：云原生CI/CD框架Tekton国内部署方式

Tekton 是一款功能非常强大而灵活的 CI/CD 开源的云原生框架。致力于提供全功能、标准化的云原生 CI/CD 解决方案。【本文主要是通过流水线自动化的将tekton镜像同步到腾讯云仓库，并部署tekton】

应用镜像

阿里云镜像仓库居然有限制…这次转到腾讯云镜像仓库了;ccr.ccs.tencentyun.com/tektons/dashboard

Pipeline

借助GitHub Actions:

同步镜像并生成镜像映射文件(json): 收集镜像映射文件为制品; This is a basic workflow to help you get started with Actions name: Get Tekton Images env: VERSION: v0.29.0 on: push: paths: – .github/workflows/tekton.yaml – tekton/** jobs: build: runs-on: ubuntu-18.04 steps: – uses: actions/checkout@v2 – name: build run: | curl https://storage.googleapis.com/tekton-releases/pipeline/previous/${{ env.VERSION }}/release.yaml -o release.yaml grep -v “#” release.yaml | grep -v “^$” > release1.yaml ; sed -i s/\-\-\-/###/g release1.yaml python3 tekton/get_tekton_images.py ${{ secrets.DOCKER_USER}} ${{ secrets.DOCKER_PASSWD}} – uses: actions/upload-artifact@v2 with: name: ${{ env.VERSION }}-tekton-images path: tekton_images.json

部署文件解析

1.下载release部署yaml;

2.解析Deployments对象中的images;

a.tekton-pipelines-controller

b.tekton-pipelines-webhook

c.tekton-dashboard(最新tag)

gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/controller:v0.29.0@sha256:72f79471f06d096cc53e51385017c9f0f7edbc87379bf415f99d4bd11cf7bc2b gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/kubeconfigwriter:v0.29.0@sha256:6d058f2203b9ab66f538cb586c7dc3b7cc31ae958a4135dd99e51799f24b06c9 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/git-init:v0.29.0@sha256:c0b0ed1cd81090ce8eecf60b936e9345089d9dfdb6ebdd2fd7b4a0341ef4f2b9 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/entrypoint:v0.29.0@sha256:66958b78766741c25e31954f47bc9fd53eaa28263506b262bf2cc6df04f18561 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/nop:v0.29.0@sha256:6a037d5ba27d9c6be32a9038bfe676fb67d2e4145b4f53e9c61fb3e69f06e816 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter:v0.29.0@sha256:e38dd0d32253fce5aaf1e501c0bc71facc3720564b7e97055921cc5390d612e0 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/pullrequest-init:v0.29.0@sha256:d28202fb8b33a1d4c05f261ef8dcbcdcf3b469887d4dad256ce91f73c917420e gcr.io/google.com/cloudsdktool/cloud-sdk@sha256:27b2c22bf259d9bc1a291e99c63791ba0c27a04d2db0a43241ba0f1f20f4067f gcr.io/distroless/base@sha256:aa4fd987555ea10e1a4ec8765da8158b5ffdfef1e72da512c7ede509bc9966c4 mcr.microsoft.com/powershell:nanoserver@sha256:b6d5ff841b78bdf2dfed7550000fd4f3437385b8fa686ec0f010be24777654d6 gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/webhook:v0.29.0@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd

用Python编写一个数据解析脚本：

import yaml import json import sys import os class Tekton : def __init__(self, file_name, registry_user, registry_passwd): self.yaml_file = file_name self.arg_imgs = [“gcr.io/tekton-releases/github.com/tektoncd/dashboard/cmd/dashboard@sha256:95f71a2568ced67ec370b5360f88bec3280601908cac9e62dfbb801114480437”] self.split_str = “###” self.deployments = [“tekton-pipelines-controller”, “tekton-pipelines-webhook”] self.kind_type = “Deployment” self.target_registry = “ccr.ccs.tencentyun.com/tektons/” self.repos = [ “controller”, “kubeconfigwriter”, “git-init”, “entrypoint”,“nop”,“imagedigestexporter”, “pullrequest-init”, “cloud-sdk”, “base”, “powershell”, “webhook”] self.result = [] self.registry_user = registry_user self.registry_passwd = registry_passwd def load_yaml(self, data): content = yaml.load(data) return content def load_json(self, data): content = json.loads(data) return content def get_images(self): f = open(self.yaml_file, r).read() for i in f.split(“###”)[:-1]: try: content = self.load_yaml(i.replace(“###”, “”)) if content[“kind”] == self.kind_type: deploy_name = content[“metadata”][“name”] # 获取image if deploy_name in self.deployments: img = content[“spec”][“template”][“spec”][“containers”][0][“image”] self.arg_imgs.append(img) # 获取参数中的images if deploy_name == “tekton-pipelines-controller”: arg_img = content[“spec”][“template”][“spec”][“containers”][0][“args”] for a in arg_img: if not a.startswith(“-“): self.arg_imgs.append(a) except Exception as e: print(e) return self.arg_imgs def save_json_file(self, data, file_name): for i in self.arg_imgs: self.result.append({ “s_image”: i, “t_image”: self.target_registry + i.split(“/”)[-1].split(“@”)[0] }) newdata = json.dumps(self.result, indent=4) a=open(file_name, w) a.write(newdata) a.close() def sync_images(self): f = open(“tekton_images.json”, r).read() content = self.load_json(f) docker_login_cmd = “docker login -u {0} -p {1} {2}”.format( self.registry_user, self.registry_passwd, self.target_registry.split(“/”)[0]) os.system(docker_login_cmd) for item in content: print(“[GetImages] {}”.format(item)) docker_pull_cmd = “docker pull {0}”.format(item[“s_image”]) docker_tag_cmd = “docker tag {0} {1}”.format(item[“s_image”], item[“t_image”]) docker_push_cmd = “docker push {0}”.format(item[“t_image”]) os.system(docker_pull_cmd + “&&” + docker_tag_cmd + “&&” + docker_push_cmd ) print(“[GetImagesDone] {}”.format(item)) if __name__ == __main__: tekton = Tekton(“release1.yaml”, sys.argv[1], sys.argv[2]) images = tekton.get_images() tekton.save_json_file(images, “tekton_images.json”) tekton.sync_images()

镜像映射文件

s_image 原始镜像名称， t_image 目标镜像名称; 这里使用腾讯云的镜像仓库;

[ { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/controller:v0.29.0@sha256:72f79471f06d096cc53e51385017c9f0f7edbc87379bf415f99d4bd11cf7bc2b”, “t_image”: “ccr.ccs.tencentyun.com/tektons/controller:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/kubeconfigwriter:v0.29.0@sha256:6d058f2203b9ab66f538cb586c7dc3b7cc31ae958a4135dd99e51799f24b06c9”, “t_image”: “ccr.ccs.tencentyun.com/tektons/kubeconfigwriter:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/git-init:v0.29.0@sha256:c0b0ed1cd81090ce8eecf60b936e9345089d9dfdb6ebdd2fd7b4a0341ef4f2b9”, “t_image”: “ccr.ccs.tencentyun.com/tektons/git-init:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/entrypoint:v0.29.0@sha256:66958b78766741c25e31954f47bc9fd53eaa28263506b262bf2cc6df04f18561”, “t_image”: “ccr.ccs.tencentyun.com/tektons/entrypoint:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/nop:v0.29.0@sha256:6a037d5ba27d9c6be32a9038bfe676fb67d2e4145b4f53e9c61fb3e69f06e816”, “t_image”: “ccr.ccs.tencentyun.com/tektons/nop:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/imagedigestexporter:v0.29.0@sha256:e38dd0d32253fce5aaf1e501c0bc71facc3720564b7e97055921cc5390d612e0”, “t_image”: “ccr.ccs.tencentyun.com/tektons/imagedigestexporter:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/pullrequest-init:v0.29.0@sha256:d28202fb8b33a1d4c05f261ef8dcbcdcf3b469887d4dad256ce91f73c917420e”, “t_image”: “ccr.ccs.tencentyun.com/tektons/pullrequest-init:v0.29.0” }, { “s_image”: “gcr.io/google.com/cloudsdktool/cloud-sdk@sha256:27b2c22bf259d9bc1a291e99c63791ba0c27a04d2db0a43241ba0f1f20f4067f”, “t_image”: “ccr.ccs.tencentyun.com/tektons/cloud-sdk” }, { “s_image”: “gcr.io/distroless/base@sha256:aa4fd987555ea10e1a4ec8765da8158b5ffdfef1e72da512c7ede509bc9966c4”, “t_image”: “ccr.ccs.tencentyun.com/tektons/base” }, { “s_image”: “mcr.microsoft.com/powershell:nanoserver@sha256:b6d5ff841b78bdf2dfed7550000fd4f3437385b8fa686ec0f010be24777654d6”, “t_image”: “ccr.ccs.tencentyun.com/tektons/powershell:nanoserver” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/pipeline/cmd/webhook:v0.29.0@sha256:46d5b90a7f4e9996351ad893a26bcbd27216676ad4d5316088ce351fb2c2c3dd”, “t_image”: “ccr.ccs.tencentyun.com/tektons/webhook:v0.29.0” }, { “s_image”: “gcr.io/tekton-releases/github.com/tektoncd/dashboard/cmd/dashboard@sha256:95f71a2568ced67ec370b5360f88bec3280601908cac9e62dfbb801114480437”, “t_image”: “ccr.ccs.tencentyun.com/tektons/dashboard” } ]

镜像映射文件可以在GitHubActions页面下载：

下载镜像脚本

解析上面生成的镜像文件，docker pull下载对应的镜像到本地;

import json import os class Tekton: def __init__(self): self.json_file = “tekton_images.json” self.target_registry = “ccr.ccs.tencentyun.com/tektons/” # self.registry_user = registry_user # self.registry_passwd = registry_passwd def load_json(self, data): content = json.loads(data) return content def down_images(self): f = open(self.json_file, r).read() content = self.load_json(f) # docker_login_cmd = “docker login -u {0} -p {1} {2}”.format( # self.registry_user, # self.registry_passwd, # self.target_registry.split(“/”)[0]) for item in content: print(“[GetImages] {}”.format(item[“t_image”])) docker_pull_cmd = “docker pull {0}”.format(item[“t_image”]) # docker_tag_cmd = “docker tag {0} {1}”.format(item[“t_image”], item[“s_image”].split(“@”)[0]) os.system(docker_pull_cmd + “&&” + docker_tag_cmd ) print(“[GetImagesDone] {}”.format(item)) if __name__ == __main__: t = Tekton().down_images()

部署Tekton

替换部署文件中的镜像:

手动更新release.yaml中的镜像;然后kubectl apply release.yaml 部署(后续有时间再优化脚本，实现自动更新release.yaml) 手动更新tekton-dashboard-release.yaml中的镜像;然后部署; [root@master ~]# kubectl -n tekton-pipelines get pod NAME READY STATUS RESTARTS AGE tekton-dashboard-5c4b89d9-2z8g7 1/1 Running 0 21m tekton-pipelines-controller-b96f647bb-gff69 1/1 Running 0 13h tekton-pipelines-webhook-76bc9c97b9-cd2m4 1/1 Running 0 13h

编写一个Ingress来暴露tekton dashboard：

apiVersion: extensions/v1beta1 kind: Ingress metadata: name: tekton-service namespace: tekton-pipelines annotations: kubernetes.io/ingress.class: nginx nginx.ingress.kubernetes.io/proxy-body-size: 256m spec: rules: – host: tekton.idevops.site http: paths: – path: / backend: serviceName: tekton-dashboard servicePort: 9097

访问UI页面：

编写Pipeline

apiVersion: tekton.dev/v1beta1 kind: Task metadata: name: tektoncd-task spec: resources: inputs: – name: repo type: git steps: – name: run-test image: maven:3-jdk-8 workingDir: /workspace/repo command: [“mvn”] args: [“clean”, “package”] — apiVersion: tekton.dev/v1alpha1 kind: PipelineResource metadata: name: tektoncd-resource spec: type: git params: – name: url value: http://192.168.1.200/devops/devops-maven-service.git – name: revision value: master — apiVersion: tekton.dev/v1beta1 kind: TaskRun metadata: name: cdpipeline spec: taskRef: name: tektoncd-task resources: inputs: – name: repo resourceRef: name: tektoncd-resource

原文链接：https://mp.weixin.qq.com/s/Rn44lRhaEC4YkUi2dD7TKg