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
master1	K8S master节点	1.20.6	192.168.204.180	jenkins slave （从节点）
	argocd	2.9.3	192.168.204.180:31767
node1	K8S node节点	1.20.6	192.168.204.181
node2	K8S node节点	1.20.6	192.168.204.182
jenkins	jenkins主节点	2.414.2	192.168.204.15:8080	gitlab runner （从节点）
	harbor私有仓库	1.2.2	192.168.204.15
	python	2.7.5		系统自带
gitlab	gitlab 主节点	12.10.14	192.168.204.8:82	jenkins slave （从节点）
	sonarqube	9.6	192.168.204.8:9000

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": "[e-mail]", "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": "[e-mail]", "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：