Jenkins file one line of code to deploy. Net program to k8s

chester·chen 2021-11-25 17:26:30

What is? Jenkins Shared library

With the increase of micro Services , Every project needs pipline file , In this case Pipeline High code redundancy , also pipeline It's getting more and more complex .

jenkins have access to Shared Lib, Put some public pipeline Abstract into module code , In various projects pipeline Reuse between , To reduce redundancy .

Shared library directory structure

 Shared library root directory
|-- vars
|-- test1.groovy
|-- src
|-- test2.groovy
|-- resources

vars: Depend on Jenkins Of the operating environment Groovy Script . Among them Groovy The script is called Global variables .
src: The standard Java Source directory structure , Among them Groovy Scripts are called class libraries (Library class).
resources: Directories allow you to use... From external libraries libraryResource Step to load the relevant non Groovy file .

How to reference a shared library

#!/usr/bin/env groovy
// Reference the shared library configured by default 
@Library('demo-shared-library') _
// Reference the specified branch 、tag Shared library code 
@Library('[email protected]') _
// References more than one specified branch tag The shared library of 
@Library('[email protected]$Branch/Tag','[email protected]$Branch/Tag') _
@Library('utils') import org.foo.Utilities
@Library('utils') import static org.foo.Utilities.*

vars Global variables under

/vars The global variable under must be in All lowercase or hump (camelCased)
/vars/*.groovy If it comes true call() Method , When referencing directly, the method is executed by default

Implement one line of code deployment .NET Program to K8S

install Jenkins Master

# master
docker run --name jenkins-blueocean -u root --privileged -d -p 8080:8080 -p 50000:50000 -v D:/architecture/jenkins/data:/var/jenkins_home -v /var/run/docker.sock:/var/run/docker.sock jenkinsci/blueocean
# visit :http://ip:8080/
# jenkins password , View container log : 7285ced325a24483bfdaab227415fdac
# Install recommended plug-ins 

install Jenkins Agent

 
Manage Jenkins -> Manage Nodes and Clouds -> New Node
  • Name: agent2/agent3
  • Labels: agentnode
  • Launch method: Launch agent by connecting it to the master

Build Agent Docker Image

# slave
# Dockerfile
FROM jenkins/inbound-agent:latest
USER root
RUN apt-get update
RUN apt-get -y install ca-certificates curl gnupg lsb-release
RUN curl -fsSL https://get.docker.com -o get-docker.sh
RUN sh get-docker.sh
RUN curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
RUN install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
RUN kubectl version --client
ENV JMETER_VERSION=5.4.1
ENV JMETER_HOME=/jmeter/apache-jmeter-${JMETER_VERSION}
ENV JMETER_PATH=${JMETER_HOME}/bin:${PATH}
ENV PATH=${JMETER_HOME}/bin:${PATH}
RUN mkdir /jmeter
COPY apache-jmeter-${JMETER_VERSION}.tgz /jmeter
RUN cd /jmeter && tar xvf apache-jmeter-${JMETER_VERSION}.tgz # among tgz Please go to the official website to download
RUN sed -i 's/#jmeter.save.saveservice.output_format=csv/jmeter.save.saveservice.output_format=xml/g' /jmeter/apache-jmeter-5.4.1/bin/jmeter.properties

 

docker build -t chesterjenkinsagent .
docker tag chesterjenkinsagent:latest 192.168.43.95/jenkins/chesterjenkinsagent:v1
docker login --username=admin --password=123456 192.168.43.95
docker push 192.168.43.95/jenkins/chesterjenkinsagent:v1

function Agent, The key passes through jenkins Of agent information acquisition

# agent4
docker run -v /var/run/docker.sock:/var/run/docker.sock --name agent4 -d --init 192.168.43.95/jenkins/chesterjenkinsagent:v1 -url http://192.168.43.94:8080 1e84c896dbffc0c325587eedb6301ab0ae66d3f4b49c4628dbb05714e382d7a2 agent4

 

newly added K8S The credentials

  • take k8s Export the configuration file of the cluster ~/.kube/config
  •  Mange Jenkins -> Manage Credentials -> Add Credentials -> Secret File
  • Select the exported kubeconfig, Set up id by kubeconfig

newly added Harbor The credentials

  • Mange Jenkins -> Manage Credentials -> Add Credentials -> Username with password
  • Input Harbor The username and password of

newly added Gitee The credentials

  • Mange Jenkins -> Manage Credentials -> Add Credentials -> Username with password
  • Input Gitee The username and password of

Installing a plug-in

Manage Jenkins -> Manage Plugins -> Search "Performance" -> install

Manage shared libraries

Manage Jenkins -> Configure System -> Global Pipeline Libraries, Among them git The address is the address of the shared library

Add the following code to the shared library

vars/run.groovy

#!/usr/bin/env groovy
def call(String nameSpaceName, String serviceName, String servicePath, String servicePort, String nodePort, Map envInfo) {
def devBranch = envInfo['dev']
def prodBranch = envInfo['prod']
pipeline {
agent {
label 'agentnode'
}
environment {
DEV_MY_KUBECONFIG = credentials('kubeconfig')
PROD_MY_KUBECONFIG = credentials('kubeconfig')
HARBOR = credentials('harbor')
}
stages {
stage('Dev - GitPull') {
steps {
deleteDir()
gitCheckOut devBranch, env.GIT_URL
}
post {
success {
script {
echo 'pull done'
}
}
}
}
stage('Dev - DockerBuild') {
steps {
dockerImageBuild serviceName, "${servicePath}Dockerfile"
}
}
stage('Dev - DockerTag') {
steps {
dockerTag serviceName, 'dev'
}
}
stage('Dev - DockerLogin') {
steps {
dockerLogin 'dev'
}
}
stage('Dev - DockerPush') {
steps {
dockerPush serviceName, 'dev'
}
}
stage('Dev - GenerateHarborSecretYAML') {
steps {
harborSecret nameSpaceName, serviceName, 'dev'
}
}
stage('Dev - GenerateK8SYAML') {
steps {
k8sGenerateYaml nameSpaceName, serviceName, servicePath, 'dev', servicePort, nodePort
}
}
stage('Dev - DeployToK8S') {
steps {
k8sDeploy servicePath, 'dev'
}
}
stage('Dev - CheckDeployStatus') {
steps {
k8sCheckDeployStatus nameSpaceName, serviceName, 'dev'
}
}
stage('Dev - Jmeter Test') {
steps {
jmeterTest servicePath
}
}
stage('DeployToProd?') {
steps {
input ' Deploy production ?'
}
}
stage('Prod - GitPull') {
steps {
gitCheckOut prodBranch, env.GIT_URL
}
}
stage('Prod - DockerBuild') {
steps {
dockerImageBuild serviceName, "${servicePath}Dockerfile"
}
}
stage('Prod - DockerTag') {
steps {
dockerTag serviceName, 'prod'
}
}
stage('Prod - DockerLogin') {
steps {
dockerLogin 'prod'
}
}
stage('Prod - DockerPush') {
steps {
dockerPush serviceName, 'prod'
}
}
stage('Prod - GenerateHarborSecretYAML') {
steps {
harborSecret nameSpaceName, serviceName, 'prod'
}
}
stage('Prod - GenerateK8SYAML') {
steps {
k8sGenerateYaml nameSpaceName, serviceName, servicePath, 'prod', servicePort, nodePort
}
}
stage('Prod - DeployToK8S') {
steps {
k8sDeploy servicePath, 'prod'
}
}
stage('Prod - CheckDeployStatus') {
steps {
k8sCheckDeployStatus nameSpaceName, serviceName, 'prod'
}
}
}
}
}

 

vars/dockerImageBuild.groovy

#!/usr/bin/env groovy
def call(String serviceName, String dockerfilePath) {
echo "serviceName:${serviceName} dockerfilePath:${dockerfilePath}"
sh "docker build -t ${serviceName} -f ${dockerfilePath} ."
}

 

vars/dockerLogin.groovy

#!/usr/bin/env groovy
def call(String envName) {
sh 'docker login --username=$HARBOR_USR --password=$HARBOR_PSW 192.168.43.95'
}

 

vars/dockerPush.groovy

#!/usr/bin/env groovy
def call(String serviceName,String envName) {
sh "docker push 192.168.43.95/dapr/${serviceName}:${envName}-${BUILD_NUMBER}"
}

 

vars/dockerTag.groovy

#!/usr/bin/env groovy
def call(String serviceName, String envName) {
sh "docker tag ${serviceName}:latest 192.168.43.95/dapr/${serviceName}:${envName}-${BUILD_NUMBER}"
}

 

vars/gitCheckOut.groovy

#!/usr/bin/env groovy
def call(String branchName, String gitUrl) {
echo "branchName:${branchName} gitUrl:${gitUrl}"
checkout([$class: 'GitSCM', branches: [[name: branchName]], extensions: [], userRemoteConfigs: [[credentialsId: 'gitee', url: gitUrl]]])
}

 

vars/harborSecret.groovy

def call(String namespaceName, String serviceName, String envName) {
dir('harborsecret') {
checkout([$class: 'GitSCM', branches: [[name: '*/master']], extensions: [], userRemoteConfigs: [[credentialsId: 'gitee', url: 'https://gitee.com/chesterdotchen/jenkins-demo-secrets.git']]])
sh """sed -i 's/{{ServiceName}}/${serviceName}/g' secrets.yaml"""
sh """sed -i 's/{{NameSpaceName}}/${namespaceName}/g' secrets.yaml"""
if (envName == 'dev') {
sh("kubectl --kubeconfig ${DEV_MY_KUBECONFIG} apply -f secrets.yaml")
}
if (envName == 'prod') {
sh("kubectl --kubeconfig ${PROD_MY_KUBECONFIG} apply -f secrets.yaml")
}
}
}

 

vars/jmeterTest.groovy

#!/usr/bin/env groovy
def call(String servicePath) {
sh "jmeter -j jmeter.save.saveservice.output_format=xml -n -t ${servicePath}jmeter.jmx -l ${servicePath}jmeter.report.jtl"
sh "cp ${servicePath}jmeter.report.jtl ${servicePath}jmeter.report.${BUILD_NUMBER}.jtl"
perfReport errorFailedThreshold:5, sourceDataFiles:"${servicePath}jmeter.report.jtl"
sh "cat ${servicePath}jmeter.report.${BUILD_NUMBER}.jtl"
sh """#!/bin/sh
grep '<failure>true</failure>' ${servicePath}jmeter.report.${BUILD_NUMBER}.jtl
if [ \$? = 0 ]
then
exit 1
else
exit 0
fi
"""
}

 

vars/k8sCheckDeployStatus.groovy

#!/usr/bin/env groovy
def call(String nameSpaceName, String serviceName, String envName) {
if (envName == 'dev') {
sh("""
 ATTEMPTS=0
ROLLOUT_STATUS_CMD='kubectl --kubeconfig ${DEV_MY_KUBECONFIG} rollout status deployment/${serviceName} -n ${nameSpaceName}-ns'
until \$ROLLOUT_STATUS_CMD || [ \$ATTEMPTS -eq 60 ]; do
\$ROLLOUT_STATUS_CMD
ATTEMPTS=\$((attempts + 1))
sleep 10
done
""")
 }
if (envName == 'prod') {
sh("""
 ATTEMPTS=0
ROLLOUT_STATUS_CMD='kubectl --kubeconfig ${PROD_MY_KUBECONFIG} rollout status deployment/${serviceName} -n ${nameSpaceName}-ns'
until \$ROLLOUT_STATUS_CMD || [ \$ATTEMPTS -eq 60 ]; do
\$ROLLOUT_STATUS_CMD
ATTEMPTS=\$((attempts + 1))
sleep 10
done
""")
 }
}

 

vars/k8sDeploy.groovy

#!/usr/bin/env groovy
def call(String servicePath, String envName) {
if (envName == 'dev') {
sh("kubectl --kubeconfig ${DEV_MY_KUBECONFIG} apply -f ${servicePath}deployment.yaml")
}
if (envName == 'prod') {
sh("kubectl --kubeconfig ${PROD_MY_KUBECONFIG} apply -f ${servicePath}deployment.yaml")
}
}

 

vars/k8sGenerateYaml.groovy

#!/usr/bin/env groovy
def call(String namespaceName, String serviceName, String servicePath, String envName, String servicePort, String nodePort) {
sh """sed "s/{{tagversion}}/${envName}-${BUILD_NUMBER}/g" ${servicePath}deployment.yaml.tpl > ${servicePath}deployment.yaml """
sh """sed -i 's/{{ServiceName}}/${serviceName}/g' ${servicePath}deployment.yaml"""
sh """sed -i 's/{{ServicePort}}/${servicePort}/g' ${servicePath}deployment.yaml"""
sh """sed -i 's/{{NodePort}}/${nodePort}/g' ${servicePath}deployment.yaml"""
sh """sed -i 's/{{NameSpaceName}}/${namespaceName}/g' ${servicePath}deployment.yaml"""
}

 

jenkins-demo-secrets The code in is as follows

apiVersion: v1
kind: Namespace
metadata:
name: {{NameSpaceName}}-ns
---
apiVersion: v1
kind: Secret
metadata:
name: harbor-key
namespace: {{NameSpaceName}}-ns
type: kubernetes.io/dockerconfigjson
data:
.dockerconfigjson: ewoJImF1dGhzIjogewoJCSIxOTIuMTY4LjQzLjk1IjogewoJCQkiYXV0aCI6ICJZV1J0YVc0Nk1USXpORFUyIgoJCX0sCgkJInJlZ2lzdHJ5LmNuLWJlaWppbmcuYWxpeXVuY3MuY29tIjogewoJCQkiYXV0aCI6ICI2Wm1JNUxpQTU0dXVPbU5vWlc1NWFYTm9hVEV5TXc9PSIKCQl9Cgl9Cn0=

 dockerconfigjson Can be obtained by

docker login --username=admin --password=123456 192.168.43.95
cat ~/.docker/config.json | base64

Jenkinsfile Reference shared libraries in

The project library needs to be written in advance Dockerfile,Jenkinsfile,deployment.yaml.tpl,jmeter.jmx

 

Dockerfile

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base
WORKDIR /app
EXPOSE 5001
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /src
COPY ["FrontEnd/FrontEnd.csproj", "FrontEnd/"]
COPY ["Common/Common.csproj", "Common/"]
RUN dotnet restore "FrontEnd/FrontEnd.csproj"
COPY . .
WORKDIR "/src/FrontEnd"
RUN dotnet build "FrontEnd.csproj" -c Release -o /app/build
FROM build AS publish
RUN dotnet publish "FrontEnd.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "FrontEnd.dll"]

Jenkinsfile

#!/usr/bin/env groovy
@Library('[email protected]') _
run 'daprtest', 'frontend', './FrontEnd/', '5001', '31111', ['dev':'*/master', 'prod':'*/master']

deployment.yaml.tpl

apiVersion: v1
kind: Namespace
metadata:
name: {{NameSpaceName}}-ns
---
apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
name: statestore
namespace: {{NameSpaceName}}-ns
spec:
type: state.redis
version: v1
metadata:
- name: redisHost
value: 192.168.43.102:6379
- name: redisPassword
value: "123456"
- name: actorStateStore
value: "true"
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ServiceName}}
namespace: {{NameSpaceName}}-ns
labels:
app: {{ServiceName}}
spec:
replicas: 1
selector:
matchLabels:
app: {{ServiceName}}
template:
metadata:
namespace: {{NameSpaceName}}-ns
labels:
app: {{ServiceName}}
annotations:
dapr.io/enabled: "true"
dapr.io/app-id: "{{ServiceName}}"
dapr.io/app-port: "{{ServicePort}}"
spec:
imagePullSecrets:
- name: harbor-key
containers:
- name: {{ServiceName}}
image: 192.168.43.95/dapr/{{ServiceName}}:{{tagversion}}
ports:
- containerPort: {{ServicePort}}
imagePullPolicy: Always
---
apiVersion: v1
kind: Service
metadata:
namespace: {{NameSpaceName}}-ns
name: {{ServiceName}}-svc
spec:
type: NodePort
selector:
app: {{ServiceName}}
ports:
- port: {{ServicePort}}
targetPort: {{ServicePort}}
nodePort: {{NodePort}}

jmter.jmx Write your own

newly build pipline

Among them URL Point to your project git Address

structure pipline

thus , We're done Jenkinsfile Deploy our project in one line of code , If there's a new one service, In the process of writing Dockerfile,deployment.yaml.tpl( bring into correspondence with ),jmeter.jmx Under the premise of , We just need Jenkinsfile Through a shared library run The method can

Please bring the original link to reprint ,thank
Similar articles

2021-11-25

2021-11-25

2021-11-25

2021-11-25

2021-11-25

2021-11-25