在容器上构建持续部署，这份超详细实践指南不要错过！

FROM?jenkins/jenkins:lts

USER?root

ENV?DOCKERVERSION=19.03.4

RUN?curl?-fsSLO?https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKERVERSION}.tgz?\
??&&?tar?xzvf?docker-${DOCKERVERSION}.tgz?--strip?1?\
?????????????????-C?/usr/local/bin?docker/docker?\
??&&?rm?docker-${DOCKERVERSION}.tgz

RUN?curl?-LO?https://storage.googleapis.com/kubernetes-release/release/$(curl?-s?https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl?\
????&&?chmod??x?./kubectl?\
????&&?mv?./kubectl?/usr/local/bin/kubectl

vagrant@ubuntu-xenial:/$?docker?version

def?POD_LABEL?=?"k8sdemopod-${UUID.randomUUID().toString()}"
podTemplate(label:?POD_LABEL,?cloud:?'kubernetes',?containers:?[
????containerTemplate(name:?'modified-jenkins',?image:?'jfeng45/modified-jenkins:1.0',?ttyEnabled:?true,?command:?'cat')
??],
??volumes:?[
?????hostPathVolume(mountPath:?'/var/run/docker.sock',?hostPath:?'/var/run/docker.sock')
??])?{

????node(POD_LABEL)?{
???????def?kubBackendDirectory?=?"/script/kubernetes/backend"
???????stage('Checkout')?{
????????????container('modified-jenkins')?{
????????????????sh?'echo?get?source?from?github'
????????????????git?'https://github.com/jfeng45/k8sdemo'
????????????}
??????????}
???????stage('Build?image')?{
????????????def?imageName?=?"jfeng45/jenkins-k8sdemo:${env.BUILD_NUMBER}"
????????????def?dockerDirectory?=?"${kubBackendDirectory}/docker/Dockerfile-k8sdemo-backend"
?????????????container('modified-jenkins')?{
???????????????withCredentials([[$class:?'UsernamePasswordMultiBinding',
?????????????????credentialsId:?'dockerhub',
?????????????????usernameVariable:?'DOCKER_HUB_USER',
?????????????????passwordVariable:?'DOCKER_HUB_PASSWORD']])?{
?????????????????sh?"""
???????????????????docker?login?-u?${DOCKER_HUB_USER}?-p?${DOCKER_HUB_PASSWORD}
???????????????????docker?build?-f?${WORKSPACE}${dockerDirectory}?-t?${imageName}?.
???????????????????docker?push?${imageName}
???????????????????"""
???????????????}
?????????????}
???????????}
???????stage('Deploy')?{
???????????container('modified-jenkins')?{
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-deployment.yaml"
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-service.yaml"
?????????????}
???????}
????}
}

podTemplate(label:?POD_LABEL,?cloud:?'kubernetes',?containers:?[
????containerTemplate(name:?'modified-jenkins',?image:?'jfeng45/modified-jenkins:1.0',?ttyEnabled:?true,?command:?'cat')
??],
??volumes:?[
?????hostPathVolume(mountPath:?'/var/run/docker.sock',?hostPath:?'/var/run/docker.sock')
??])

stage('Build?image')?{

????????????def?imageName?=?"jfeng45/jenkins-k8sdemo:${env.BUILD_NUMBER}"
????????????def?dockerDirectory?=?"${kubBackendDirectory}/docker/Dockerfile-k8sdemo-backend"
?????????????container('modified-jenkins')?{
???????????????withCredentials([[$class:?'UsernamePasswordMultiBinding',
?????????????????credentialsId:?'dockerhub',
?????????????????usernameVariable:?'DOCKER_HUB_USER',
?????????????????passwordVariable:?'DOCKER_HUB_PASSWORD']])?{
?????????????????sh?"""
???????????????????docker?login?-u?${DOCKER_HUB_USER}?-p?${DOCKER_HUB_PASSWORD}
???????????????????docker?build?-f?${WORKSPACE}${dockerDirectory}?-t?${imageName}?.
???????????????????docker?push?${imageName}
???????????????????"""
???????????????}
?????????????}
???????????}

#?vagrant@ubuntu-xenial:~/app/k8sdemo/script/kubernetes/backend$
#?docker?build?-t?k8sdemo-backend?.

FROM?golang:latest?as?builder

#?Set?the?Current?Working?Directory?inside?the?container
WORKDIR?/app

COPY?go.mod?go.sum?./

RUN?go?mod?download

COPY?.?.

WORKDIR?/app/cmd

#?Build?the?Go?app
#RUN?CGO_ENABLED=0?GOOS=linux?go?build?-a?-installsuffix?cgo?-o?main.exe

RUN?go?build?-o?main.exe

########?Start?a?new?stage?from?scratch?#######
FROM?alpine:latest

RUN?apk?--no-cache?add?ca-certificates

WORKDIR?/root/

RUN?mkdir?/lib64?&&?ln?-s?/lib/libc.musl-x86_64.so.1?/lib64/ld-linux-x86-64.so.2

#?Copy?the?Pre-built?binary?file?from?the?previous?stage
COPY?--from=builder?/app/cmd/main.exe?.

#?Command?to?run?the?executable
#?CMD?exec?/bin/bash?-c?"trap?:?TERM?INT;?sleep?infinity?&?wait"
CMD?

?stage('Deploy')?{
???????????container('modified-jenkins')?{
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-deployment.yaml"
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-service.yaml"
?????????????}
???????}

。。。
??kubectl?apply?-f?/home/jenkins/workspace/test1/script/kubernetes/backend/backend-deployment.yaml
deployment.apps/k8sdemo-backend-deployment?created
[Pipeline]?sh??kubectl?apply?-f?/home/jenkins/workspace/test1/script/kubernetes/backend/backend-service.yaml
service/k8sdemo-backend-service?created
[Pipeline]?}
[Pipeline]?//?container
[Pipeline]?}
[Pipeline]?//?stage
[Pipeline]?}
[Pipeline]?//?node
[Pipeline]?}
[Pipeline]?//?podTemplate
[Pipeline]?End?of?Pipeline
Finished:?SUCCESS

?stage('Deploy')?{
???????????container('modified-jenkins')?{
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-deployment.yaml"
???????????????sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-service.yaml"
?????????????}
???????}

vagrant@ubuntu-xenial:/home$?kubectl?get?pod
NAME???????????????????????????????????????????READY???STATUS????RESTARTS???AGE
envar-demo?????????????????????????????????????1/1?????Running???15?????????32d
k8sdemo-backend-deployment-6b99dc6b8c-8kxt9????1/1?????Running???0??????????50s
k8sdemo-database-deployment-578fc88c88-mm6x8???1/1?????Running???9??????????20d
k8sdemo-jenkins-deployment-675dd574cb-r57sb????1/1?????Running???0??????????2d23h

vagrant@ubuntu-xenial:/home$?kubectl?exec?-ti?k8sdemo-backend-deployment-6b99dc6b8c-8kxt9?--?/bin/sh
~?#?./main.exe
DEBU[0000]?connect?to?database
DEBU[0000]?dataSourceName:dbuser:dbuser@tcp(k8sdemo-database-service:3306)/service_config?charset=utf8
DEBU[0000]?FindAll()
DEBU[0000]?created=2019-10-21
DEBU[0000]?find?user:{1?Tony?IT?2019-10-21}
DEBU[0000]?find?user?list:[{1?Tony?IT?2019-10-21}]
DEBU[0000]?user?lst:[{1?Tony?IT?2019-10-21}]

app?=?docker.build("jfeng45/jenkins-k8sdemo"）

stage('Create?Docker?images')?{
??container('docker')?{
??????app?=?docker.build("jfeng45/codedemo",?"-f?${WORKSPACE}/script/kubernetes/backend/docker/Dockerfile-k8sdemo-test?.")
??????docker.withRegistry('',?'dockerhub')?{
??????????//?Push?image?and?tag?it?with?our?build?number?for?versioning?purposes.
??????????app.push("${env.BUILD_NUMBER}")
??????}
????}
??}

stage('Create?a?d?ocker?image')?{
?????def?imageName?=?"jfeng45/codedemo:${env.BUILD_NUMBER}"
?????def?dockerDirectory?=?"${kubBackendDirectory}/docker/Dockerfile-k8sdemo-backend"
??????container('modified-jenkins')?{
????????withCredentials([[$class:?'UsernamePasswordMultiBinding',
??????????credentialsId:?'dockerhub',
??????????usernameVariable:?'DOCKER_HUB_USER',
??????????passwordVariable:?'DOCKER_HUB_PASSWORD']])?{
??????????sh?"""
????????????docker?login?-u?${DOCKER_HUB_USER}?-p?${DOCKER_HUB_PASSWORD}
????????????docker?build?-f?${WORKSPACE}${dockerDirectory}?-t?${imageName}?.
????????????docker?push?${imageName}
????????????"""
????????}
??????}
????}

sh?"kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-deployment.yaml"

sh?'kubectl?apply?-f?${WORKSPACE}${kubBackendDirectory}/backend-deployment.yaml'

??docker?inspect?-f?.?k8sdemo-backend:latest
/var/jenkins_home/workspace/k8sdec@2@tmp/durable-01e26997/script.sh:?1:?????/var/jenkins_home/workspace/k8sdec@2@tmp/durable-01e26997/script.sh:?docker:?????not?found

Vagrant.configure(2)?do?|config|
?????。。。
?????config.vm.box?=?"ubuntu/xenial64"
?????config.disksize.size?=?'16GB'
?????。。。
end