pipeline结合ansible剧本进行批量的部署与回滚配置
文章发布较早，内容可能过时，阅读注意甄别。
之前还在头疼批量部署与回滚的事情，最近各方面接触 ansible 开始多起来，于是将 ansible 接入到了部署流程中，从而将批量部署与回滚变得简化起来。
先看一下 ansible 的剧本构造：
[root@ops-eryajf-test-1 deploystatic]$tree
.
├── hosts
├── README.md
├── roles
│ ├── deploy
│ │ ├── files
│ │ │ └── keepfive.sh
│ │ └── tasks
│ │ └── main.yml
│ └── rollback
│ └── tasks
│ └── main.yml
└── site.yml
6 directories, 7 files
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其中 hosts 文件不固定，由项目构建中灵活定义。
然后逐个查看内容：
$cat site.yml
---
- hosts: "remote"
name: "项目部署脚本"
remote_user: "root"
roles:
- deploy
- rollback
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然后看两个剧本的具体内容：
$ cat roles/deploy/files/keepfive.sh
while true;do
A=`ls . | wc -l`
B=`ls -lrX . | tail -n 1 | awk '{print $9}'`
if [ $A -gt 5 ];then rm -rf ./$B;else break;fi;done
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这个脚本定义了令远程版本库保留 5 个构建历史的操作。
$ cat roles/deploy/tasks/main.yml
---
- name: "创建远程主机上的版本目录"
file: path=/release/{{project}}/{{_version}} state=directory
tags: deploy
- name: "将代码同步到远程主机版本目录"
synchronize:
src: /{{WORKSPACE}}/
dest: /release/{{project}}/{{_version}}/
delete: yes
rsync_opts: --exclude-from=/{{WORKSPACE}}/excludefile
tags: deploy
- name: "将项目部署到生产目录"
file: path=/data/www/{{project}} state=link src=/release/{{project}}/{{_version}}
tags: deploy
- name: "使版本目录保持五个版本历史"
script: chdir=/release/{{project}} keepfive.sh
tags: deploy
- name: "生成远程版本号"
shell: "ls /release/{{project}} > /release/{{project}}.log"
tags: deploy
- name: "同步版本号到本地"
synchronize: "src=/release/{{project}}.log dest=/root/.jenkins/version/{{project}}.log mode=pull"
tags: deploy
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定义了主要的部署流程
$ cat roles/rollback/tasks/main.yml
---
- name: "将项目回滚到对应期望的构建"
file: path=/data/www/{{project}} state=link src={{Version}}
tags: rollback
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定义了回滚的流程。
看起来就这么多，也并不算复杂，只要里边的变量，以及参数定义好即可。现在将整个剧本放在 Jenkins 主机的 /root/.jenkins/ansible/deploystatic目录下，以便如下脚本调用。
接下来就是核心的 Jenkinsfile 的定义了，目前初步定义为如下样子：
def createVersion() {
return new Date().format('yyyyMMddHHmmss') + "_${env.BUILD_ID}"
}
pipeline {
agent any
environment {
_version = createVersion()
// 需要修改此处，定义项目名称
project="admin-ansible"
// 定义项目git地址
git_url = "git@10.3.0.42:jenkins-learn/breeze-college.git"
remote_port="22"
remote_user="root"
// 定义项目的webroot目录
project_dir="/data/www/${project}"
//定义项目的版本目录，一般不用更改
version_dir="/release/$project/${_version}"
}
options {
timestamps()
disableConcurrentBuilds()
timeout(time: 10, unit: 'MINUTES')
buildDiscarder(logRotator(numToKeepStr: '10'))
}
triggers{
gitlab( triggerOnPush: true,
triggerOnMergeRequest: true,
branchFilterType: 'All',
secretToken: "${env.git_token}")
}
parameters {
string(name: 'branch', defaultValue: 'master', description: '请输入将要构建的代码分支')
choice(name: 'mode', choices: ['deploy','rollback'], description: '请选择发布或者回滚？')
string(name: 'version_id', defaultValue: '0', description: '回滚时用，默认回滚到上一次构建，如需要回滚到更早构建，请输入对应构建ID，只支持最近五次构建的回滚,部署请忽略此参数')
choice(name: 'remote_ip', choices: ['all','10.3.9.32','10.3.20.4'], description: '选择要发布的主机')
}
stages {
stage('拉取代码') {
steps {
echo 'Checkout'
script {
try {
git branch: "${branch}",url: "${git_url}"
}catch(err) {
echo "${err}"
}
}
}
}
stage('定义部署主机列表'){
steps{
script{
try{
sh '''
if [ $remote_ip == "all" ];then
cat > /root/.jenkins/ansible/deploystatic/hosts << EOF
[remote]
10.3.9.32 ansible_port=34222
10.3.20.4 ansible_port=34222
EOF
else
cat > /root/.jenkins/ansible/deploystatic/hosts << EOF
[remote]
$remote_ip ansible_port=34222
EOF
fi
'''
}catch(err) {
echo "${err}"
}
}
}
}
stage('定义忽略文件'){
steps{
script{
try {
sh '''
cat > excludefile << EOF
Jenkinsfile
excludefile
EOF
'''
}catch(err) {
echo "${err}"
}
}
}
}
stage('部署') {
when {
environment name: 'mode',value: 'deploy'
}
steps {
dir("/root/.jenkins/ansible/deploystatic"){
script {
try {
sh '''
ansible-playbook -i ./hosts --tags "deploy" site.yml -e "project"=$project -e "WORKSPACE"=$WORKSPACE -e "_version"=${_version}
'''
} catch(err) {
echo "${err}"
}
}
}
}
}
stage('回滚') {
when {
environment name: 'mode',value: 'rollback'
}
steps {
dir("/root/.jenkins/ansible/deploystatic"){
script {
try{
if (params.version_id == '0'){
sh '''
echo "选择回滚的版本是默认，将回滚到上次制品，回滚即将进行..."
Version="/release/$project/`tail -n2 /root/.jenkins/version/${project}.log | head -n1`"
ansible-playbook -i ./hosts --tags "rollback" site.yml -e "project"=${project} -e "Version"=${Version}
echo "=============="
echo "项目已回滚完成！"
echo "=============="
'''
} else{
sh '''
echo "选择回滚的版本是：${version_id}，将回滚到 ${version_id} 的制品，回滚即将进行..."
Version="/release/$project/`grep "_$version_id" /root/.jenkins/version/${project}.log`"
ansible-playbook -i ./hosts --tags "rollback" site.yml -e "project"=${project} -e "Version"=${Version}
echo "项目回滚到 ${version_id} 完成！"
'''
}
} catch(err) {
echo "${err}"
}
}
}
}
}
}
post {
success {
dingTalk accessToken:'https://oapi.dingtalk.com/robot/send?access_token=改成自己的',
imageUrl:'https://ae01.alicdn.com/kf/Hdfe28d2621434a1eb821ac6327b768e79.png',
jenkinsUrl: "${env.JENKINS_URL}",
message:'构建成功 ✅',
notifyPeople:'李启龙'
}
failure {
dingTalk accessToken:'https://oapi.dingtalk.com/robot/send?access_token=改成自己的',
imageUrl:'https://ae01.alicdn.com/kf/Hdfe28d2621434a1eb821ac6327b768e79.png',
jenkinsUrl: "${env.JENKINS_URL}",
message:'构建失败 ❌',
notifyPeople:'李启龙'
}
}
}
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核心脚本也不算复杂，只需要在新配置项目的时候调整一些参数即可投入使用。
上次更新: 2024/11/19, 23:11:42
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