持续集成交付CICD:GitLabCI 封装Python类 并结合 ArgoCD 完成前端项目应用发布

目录

一、实验

1. 环境

2. Python代码实现获取文件

3.Python代码实现创建文件

4.Python代码实现更新文件

5.GitLab更新库文件与运行流水线

6.ArgoCD 完成前端项目应用发布

二、问题

1.Python获取GitLab指定仓库文件报错

2. K8S master节点运行Python代码报错


一、实验

1. 环境

(1)主机

表1 主机

主机架构版本IP备注
master1K8S master节点1.20.6192.168.204.180

jenkins slave

(从节点)

argocd2.9.3192.168.204.180:31767
node1K8S node节点1.20.6192.168.204.181
node2K8S node节点1.20.6192.168.204.182
jenkins

 jenkins主节点      

2.414.2192.168.204.15:8080

 gitlab runner

(从节点)

harbor私有仓库1.2.2192.168.204.15
python2.7.5系统自带
gitlabgitlab 主节点     12.10.14192.168.204.8:82

jenkins slave

(从节点)

sonarqube9.6192.168.204.8:9000

2. Python代码实现获取文件

(1) GitLab官网查询通过API操作获取raw文件

Repository files API | GitLab

curl --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/13083/repository/files/app%2Fmodels%2Fkey%2Erb/raw?ref=main"

(2)GitLab 创建TOKEN

(3)GitLab查看项目编号

(4)Postman测试完成,转换成Python代码

import requestsurl = "http://192.168.204.8:82/api/v4/projects/22/repository/files/deployment.yaml/raw?ref=master"payload = {}
headers = {'PRIVATE-TOKEN': 'Z6RKxDgK7ort7i9K6f6p'
}response = requests.request("GET", url, headers=headers, data=payload)print(response.text)

(3)python实现获取GitLab指定仓库deplyment.yaml文件

import requests
import jsonclass GitlabUtil():def __init__(self):self.gitlab_url = "http://192.168.204.8:82/api/v4"self.headers = {'PRIVATE-TOKEN': 'Z6RKxDgK7ort7i9K6f6p'}def http_req(self,method,apiUrl,data={}):url = "{0}/{1}".format(self.gitlab_url,apiUrl)response = requests.request(method,url,headers=self.headers,data=data)return response.textdef write_file(self,content,filePath):with open(filePath,'w') as f:f.write(content)def get_repo_file(self,projectId,filePath,branch,targetFile):apiurl = "projects/{0}/repository/files/{1}/raw?ref={2}".format(projectId,filePath,branch)response = self.http_req("GET",apiurl)# print(response.txt)self.write_file(response,targetFile)if __name__ == '__main__':runner = GitlabUtil()runner.get_repo_file("22","deployment.yaml","master","deployment.yaml")

(4)运行Python代码(Windows11 Python环境为3.8)

(5)本地生成deployment.yaml

(6)K8S master节点同样运行Python代码进行测试(Python环境为2.7)

1)创建目录及python文件
# mkdir pygitlabtest
# cd pygitlabtest/
# vim test.py
# ls2)查看版本
# python --version3)运行代码
# python test.py 

3.Python代码实现创建文件

(1)GitLab官网查询通过API操作在指定仓库创建文件

curl --request POST --header 'PRIVATE-TOKEN: <your_access_token>' \--header "Content-Type: application/json" \--data '{"branch": "main", "author_email": "author@example.com", "author_name": "Firstname Lastname","content": "some content", "commit_message": "create a new file"}' \"https://gitlab.example.com/api/v4/projects/13083/repository/files/app%2Fproject%2Erb"

(2)Postman测试完成,转换成Python代码

import requests
import jsonurl = "http://192.168.204.8:82/api/v4/projects/22/repository/files/demo.yaml"payload = json.dumps({"branch": "master","content": "Hello World","commit_message": "commmit by autorobot"
})
headers = {'PRIVATE-TOKEN': 'Z6RKxDgK7ort7i9K6f6p','Content-Type': 'application/json'
}response = requests.request("POST", url, headers=headers, data=payload)print(response.text)

(3)GitLab查看项目生成了demo.yaml文件

(4)python实现在GitLab指定项目创建demo02.yaml文件

# -*- coding: utf-8 -*-
import requests
import json
import base64class GitlabUtil():def __init__(self,projectId):self.gitlab_url = "http://192.168.204.8:82/api/v4"self.gitlab_token = 'Z6RKxDgK7ort7i9K6f6p'self.projectId = projectIdself.encoding = "base64"def http_req(self,method,apiUrl,headers,data):url = "{0}/{1}".format(self.gitlab_url,apiUrl)response = requests.request(method,url,headers=headers,data=data)return response.textdef write_file(self,content,filePath):with open(filePath,'w') as f:f.write(content)def get_repo_file(self,filePath,branch,targetFile):apiurl = "projects/{0}/repository/files/{1}/raw?ref={2}".format(self.projectId,filePath,branch)headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}response = self.http_req("GET",apiurl,headers, {})# print(response.txt)self.write_file(response,targetFile)def create_repo_file(self,filePath,branch,content,commit_message):apiurl = "/projects/{0}/repository/files/{1}".format(self.projectId,filePath)data = json.dumps({"branch": branch,"content": content,"commit_message": commit_message# "encoding": self.encoding})headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}self.http_req("POST", apiurl,headers=headers,data=data)if __name__ == '__main__':runner = GitlabUtil("22")# runner.get_repo_file("deployment.yaml","master","deployment.yaml")f = open("deployment.yaml",'r',encoding='utf-8')content = f.read()f.close()# content = base64.b64encode(bytes(content,"utf-8"))runner.create_repo_file("demo02.yaml","master",content,"Hello World 2")

(5)运行Python代码(Windows11 Python环境为3.8)

(6)GitLab查看项目生成了demo2.yaml文件

4.Python代码实现更新文件

(1)GitLab官网查询通过API操作在指定仓库更新文件

curl --request PUT --header 'PRIVATE-TOKEN: <your_access_token>' \--header "Content-Type: application/json" \--data '{"branch": "main", "author_email": "author@example.com", "author_name": "Firstname Lastname","content": "some content", "commit_message": "update file"}' \"https://gitlab.example.com/api/v4/projects/13083/repository/files/app%2Fproject%2Erb"

(2)python实现在GitLab指定项目更新demo02.yaml文件

# -*- coding: utf-8 -*-
import requests
import json
import base64class GitlabUtil():def __init__(self,projectId):self.gitlab_url = "http://192.168.204.8:82/api/v4"self.gitlab_token = 'Z6RKxDgK7ort7i9K6f6p'self.projectId = projectIdself.encoding = "base64"def http_req(self,method,apiUrl,headers,data):url = "{0}/{1}".format(self.gitlab_url,apiUrl)response = requests.request(method,url,headers=headers,data=data)return response.textdef write_file(self,content,filePath):with open(filePath,'w') as f:f.write(content)# 下载文件def get_repo_file(self,filePath,branch,targetFile):apiurl = "projects/{0}/repository/files/{1}/raw?ref={2}".format(self.projectId,filePath,branch)headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}response = self.http_req("GET",apiurl,headers, {})# print(response.txt)self.write_file(response,targetFile)# 创建文件def create_repo_file(self,filePath,branch,content,commit_message):apiurl = "/projects/{0}/repository/files/{1}".format(self.projectId,filePath)data = json.dumps({"branch": branch,"content": content,"commit_message": commit_message# "encoding": self.encoding})headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}self.http_req("POST", apiurl,headers=headers,data=data)# 更新文件def update_repo_file(self,filePath,branch,content,commit_message):apiurl = "/projects/{0}/repository/files/{1}".format(self.projectId,filePath)data = json.dumps({"branch": branch,"content": content,"commit_message": commit_message# "encoding": self.encoding})headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}self.http_req("PUT", apiurl,headers=headers,data=data)if __name__ == '__main__':runner = GitlabUtil("22")# runner.get_repo_file("deployment.yaml","master","deployment.yaml")f = open("deployment.yaml",'r',encoding='utf-8')content = f.read()f.close()# content = base64.b64encode(bytes(content,"utf-8"))# runner.create_repo_file("demo02.yaml","master",content,"Hello World 2")runner.update_repo_file("demo02.yaml", "master", content, "Hello World 3")

(3)运行Python代码(Windows11 Python环境为3.8)

(4)GitLab查看项目更新了提交信息

5.GitLab更新库文件与运行流水线

(1)查看GitLab共享库

(2)新建流水线文件ui.gitlabutil.yaml

(3)复制raw格式

(4)在GitLab devops03-devops-env 环境库项目添加CI配置文件路径

(5)查看前端项目devops03-devops-ui 修改Dockerfile,注释本地CI流水线文件,避免后续运行错误

(6)查看前端项目目录下的index.html文件

(7) GitLab共享库新建目录util及GitLabUtil.py文件,用来封装python类

(8)GitLabUtil.py文件代码

import requests
import json
import base64
import sysclass GitlabUtil():def __init__(self,projectId):self.gitlab_url = "http://192.168.204.8:82/api/v4"self.gitlab_token = 'Z6RKxDgK7ort7i9K6f6p'self.projectId = projectIdself.encoding = "base64"def http_req(self,method,apiUrl,headers,data):url = "{0}/{1}".format(self.gitlab_url,apiUrl)response = requests.request(method,url,headers=headers,data=data)return response.textdef write_file(self,content,filePath):with open(filePath,'w') as f:f.write(content)def get_repo_file(self,filePath,branch,targetFile):apiurl = "projects/{0}/repository/files/{1}/raw?ref={2}".format(self.projectId,filePath,branch)headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}response = self.http_req("GET",apiurl,headers, {})# print(response.txt)self.write_file(response,targetFile)def create_repo_file(self,filePath,branch,content,commit_message):apiurl = "/projects/{0}/repository/files/{1}".format(self.projectId,filePath)data = json.dumps({"branch": branch,"content": content,"commit_message": commit_message# "encoding": self.encoding})headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}mes = self.http_req("POST", apiurl,headers=headers,data=data)if json.loads(mes)["message"] == "A file with this name already exists":raise Exception("A file with this name already exists")def update_repo_file(self,filePath,branch,content,commit_message):apiurl = "/projects/{0}/repository/files/{1}".format(self.projectId,filePath)data = json.dumps({"branch": branch,"content": content,"commit_message": commit_message})headers = {'PRIVATE-TOKEN': self.gitlab_token,'Content-Type': 'application/json'}self.http_req("PUT", apiurl,headers=headers,data=data)if __name__ == '__main__':if sys.argv[1] == "getfile":projectId,filename,branch,targetFile = sys.argv[2:]GitlabUtil(projectId).get_repo_file(filename,branch,targetFile)if sys.argv[1] == "updatefile":projectId, filename, branch, targetFile = sys.argv[2:]f = open(filename, 'r')content = f.read()f.close()try:GitlabUtil(projectId).create_repo_file(targetFile, branch, content, "Auto K8S Deployment")except Exception as e:print(e)GitlabUtil(projectId).update_repo_file(targetFile, branch, content, "Auto K8S Deployment")

(9)修改流水线文件ui.gitlabutil.yaml

include:- project: 'devops03/devops03-gitlabci-lib'ref: masterfile: "/jobs/CI.yaml"workflow:rules:#新建分支永远不执行- if: $CI_PIPELINE_SOURCE == "web"      #允许手动触发when: always- if: $CI_COMMIT_BEFORE_SHA == "0000000000000000000000000000000000000000"when: never# 其他情况永远执行- when: always#取消每个阶段自动下载代码,即全局关闭作业代码下载
variables:GIT_CHECKOUT: "false"  ## 全局关闭作业代码下载PROJECT_TYPE: "npm"   ## 定义项目类型BUILD_SHELL: "npm run build"   ## 构建命令TEST_SHELL: "echo test"                         ## 测试命令ARTIFACT_PATH: "dist/**"                                  ## 制品路径# TEST_REPORTS: "target/surefire-reports/TEST-*.xml"             ## 测试报告stages:- build- sonarscan- dockerbuild- releasefilepipelineInit:extends: - .pipelineInitcibuild:before_script:- "npm install"extends:- .cibuildreleasefile:tags:- buildstage: releasefilescript:- curl  "http://192.168.204.8:82/devops03/devops03-gitlabci-lib/-/raw/master/utils/GitLabUtil.py" -o GitLabUtil.py -s- python GitLabUtil.py getfile "22" "deployment.yaml" "master" "deployment.yaml"- ls -l- imageName=192.168.204.15/${CI_PROJECT_NAMESPACE}/${CI_PROJECT_NAME}:${CI_COMMIT_SHA}- sed -i 's#__PORT__#80#g' deployment.yaml- sed -i "s#__APPNAME__#${CI_PROJECT_NAME}#g" deployment.yaml- sed -i "s#__NAMESPACE__#${CI_PROJECT_NAMESPACE}#g" deployment.yaml- sed -i "s#__IMAGENAME__#${imageName}#g" deployment.yaml- python GitLabUtil.py updatefile "22" "deployment.yaml" "master" "${CI_PROJECT_NAME}%2f${CI_COMMIT_BRANCH}.yaml"#sonarscan:
# extends:
# - .sonarscan#pushartifact:
# extends:
# - .pushartifactdockerbuild:extends:- .dockerbuild

(10)共享库完整目录

(11)GitLab 前端项目运行流水线

(12)完成

(13)查看各阶段日志

(14)环境库项目显示更新master.yaml文件

(15) 查看master.yaml文件(已同步更新端口号、命名空间、项目名称及镜像名称)

6.ArgoCD 完成前端项目应用发布

(1)K8S查看集群状态

# kubectl get node

(2)K8S master节点另开一个终端用watch命令观察pod变化

# watch -n 1 "kubectl get pod -n devops03"

(3)外部测试访问

# curl http://devops03-devops-ui.devops.com:31291

(4)K8S 删除命名空间devops03

# kubectl delete ns devops03

(5) 观察pod变化

(5)ArgoCD 查看已有项目

(6)ArgoCD 删除已有项目

 

(7)GitLab环境库注释其他的yaml文件

(8)ArgoCD 创建application (手动策略、自动创建命名空间、指定仓库与集群)

(9)填写配置

(10)完成创建

(11)点击 SYNCHRONIZE (同步)

(12)观察pod变化

(13)ArgoCD 观察pod变化

(14)查看Harbor仓库镜像文件

(15)K8S node节点连接Harbor拉取镜像

# docker login -u admin -p Harbor12345 192.168.204.15# docker pull 192.168.204.15/devops03/devops03-devops-ui:RELEASE-1.1.7# docker logout 192.168.204.15

node1 节点

node2节点

(16)观察pod变化

(17)ArgoCD 再次观察pod变化

(18) 外部测试访问

# curl http://devops03-devops-ui.devops.com:31291

二、问题

1.Python获取GitLab指定仓库文件报错

(1)报错

(2)原因分析

函数名错误

(3)解决方法

修改函数名称。

修改前:

修改后:

2. K8S master节点运行Python代码报错

(1)报错

(2)原因分析

encoding不是有效的关键词。

(3)解决方法

去掉encoding。

修改前:

修改后:

成功:

3. GitLabCI 运行流水线报错

(1)报错

(2)原因分析

行尾缺少双引号

(3)解决方法

添加双引号。

成功:

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