
```yml
apiVersion: autoscaling/v2  # 使用v2版本API支持多指标
kind: HorizontalPodAutoscaler
metadata:
  name: cpu-mem-hpa        # HPA资源名称
  namespace: default       # 可选：指定命名空间
spec:
  scaleTargetRef:          # 指定要扩缩的目标资源
    apiVersion: apps/v1    # 目标资源的API版本
    kind: Deployment       # 资源类型(支持Deployment/StatefulSet等)
    name: your-deployment  # 需要替换为实际Deployment名称
  
  minReplicas: 1          # 最小副本数(必须≥1)
  maxReplicas: 5          # 最大副本数限制
  
  metrics:                # 定义扩缩容指标(可多指标)
  - type: Resource        # 资源类型指标(CPU/内存)
    resource:
      name: cpu           # 监控CPU指标
      target:
        type: Utilization # 使用率类型
        averageUtilization: 95  # 目标利用率阈值(百分比)
  
  - type: Resource        # 第二个资源指标
    resource:
      name: memory        # 监控内存指标
      target:
        type: Utilization
        averageUtilization: 95  # 内存使用率阈值
```


```js
配置了基于CPU和内存的双指标HPA，任一指标达到95%利用率时触发扩容
最小副本数设为1，最大副本数限制为5个pod
需要替换your-deployment为实际要监控的Deployment名称
使用autoscaling/v2 API版本支持多指标扩缩容
```

19.HPA自动伸缩容

# 一、去gitlab创建一个项目

![image.png](/static/img/95cc9cfcdd9633a5911e8e8b20ff0176.image.webp)

![image.png](/static/img/5ea5b34ae8ef3c0722381c40bbfdb8a2.image.webp)

![image.png](/static/img/e2af84f7e56de48c9f318d2384bf3a12.image.webp)


# 二、然后在本地的IDEA创建一个spring boot的项目做测试

![image.png](/static/img/ef7fa422fc8405354bee7877ff72d578.image.webp)


![image.png](/static/img/2e00f55c5fcec473c9c12e3f6650ac55.image.webp)

只需勾选srping web就好

![image.png](/static/img/d9ef24173dd1544effbef9654d48c832.image.webp)

插件中自带捆绑gitlab，需要取消捆绑

![image.png](/static/img/798ffaa74ec7ef1bbf5ff4a376a6b1a3.image.webp)

去设置查看是否安装了git，进行测试查看

![image.png](/static/img/f48635e9b1b381fdb6036542e64d3077.image.webp)


然后去VCS创建一个git仓库

![image.png](/static/img/b0dad6dd5de7db77cf2447c82902f660.image.webp)

选择你当前的项目，确定

![image.png](/static/img/42cf8b57fd0464f56239f0ad8e045bc5.image.webp)

然后你的项目就会变成红色，VCS也变成了git

![image.png](/static/img/1dabd113112fdb712a94c41f1dc76b20.image.webp)

![image.png](/static/img/e03f29dc917df1e822af18fbc27d5798.image.webp)

然后设置远程管理

![image.png](/static/img/1a2211b2ff6f364b54cf3e4943aa611d.image.webp)

把gitlab的仓库地址粘贴上去

![image.png](/static/img/d7d8993f4aae432a393cba1438e874c8.image.webp)

![image.png](/static/img/c2eee9ae15b2a42405732e2f1458cb83.image.webp)

然后点提交目录

![image.png](/static/img/108627ad3e841bd722c3298e16723d79.image.webp)

填写好描述信息后提交

![image.png](/static/img/f0afdc1e3ccc8edaa6d22311ca19109e.image.webp)

最后点推送即可，如果弹出要登录，填写自己的账号和密码即可
![image.png](/static/img/2a88a49fe88e595e4ee14c0b38d7fbe9.image.webp)

最后查看自己的gitlab项目就会变成这样了
![image.png](/static/img/3154e3f4c8069aaf5b7a81308513b3c3.image.webp)

4.jenkins实现CI

# 一、安装jenkins
为了方便使用docker的方式安装

编写docker-compose.yml

```js
version: "3.1"
services:
  jenkins:
    image: jenkins/jenkins
    container_name: jenkins
    ports:
      - 8080:8080
      - 50000:50000
    volumes:
      - ./data/:/var/jenkins_home/
```


启动
```js
docker-compose up -d
```
查看日志启动不成功，直接关闭服务给映射宿主机的文件目录授权

![image.png](/static/img/2745fb75dfc32cbb06f91dbeafb6e4c7.image.webp)
```js
docker-compose down -v
```
再次启动，查看docker日志发现没有问题了
```js
docker-compose up -d
```

![image.png](/static/img/2034bf3b919096a17ca048201a71e866.image.webp)

![image.png](/static/img/6dceb04f4f05897148f8d38cdc83d32c.image.webp)

![image.png](/static/img/9a1ac2262917f7d860b367a95a24b552.image.webp)

![image.png](/static/img/0d610f1a9885813034e48f0a1713c7ca.image.webp)

# 二、如果下载插件失败，直接用另一种方法

![image.png](/static/img/a9900d9149c65f240ee5eb01164b8ae7.image.webp)

直接修改数据卷映射的hudson.model.UpdateCenter.xml文件，然后重启jenkins

```yml
# 修改数据卷中的hudson.model.UpdateCenter.xml文件
<?xml version='1.1' encoding='UTF-8'?>
<sites>
  <site>
    <id>default</id>
    <url>https://updates.jenkins.io/update-center.json</url>
  </site>
</sites>
# 将下载地址替换为http://mirror.esuni.jp/jenkins/updates/update-center.json
<?xml version='1.1' encoding='UTF-8'?>
<sites>
  <site>
    <id>default</id>
    <url>http://mirror.esuni.jp/jenkins/updates/update-center.json</url>
  </site>
</sites>
# 清华大学的插件源也可以https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json
```

# 三、配置管理员的用户密码

![image.png](/static/img/b49d645025125817c708d084480c7b1b.image.webp)

# 四、安装需要的两个插件

![image.png](/static/img/462308bbc97dab055940a3a3b15e9066.image.webp)
![image.png](/static/img/31dc401b17e0bf52937c7633818f5ff9.image.webp)


![image.png](/static/img/c3dfbd2b9d6b362085dd2559e469a178.image.webp)


![image.png](/static/img/d975c6c9d11243f1a23551345664a653.image.webp)



# 五、给Jenkins配置jdk和maven

![image.png](/static/img/462308bbc97dab055940a3a3b15e9066.image.webp)


![image.png](/static/img/dfb86b6ec602c1bf4fd7c677f93a5726.image.webp)

### 1.配置Jenkins配置jdk和maven
把解压的jdk目录和maven目录转移到数据卷目录中

```js
cp -r  jdk/ /jenkins/data/
cp -r  maven/ /jenkins/data/
```
![image.png](/static/img/7bd49bae3c17d6159761edd4f48b470a.image.webp)

![image.png](/static/img/4cd46ac4d407ad8473726a4a9c597b5a.image.webp)

![image.png](/static/img/10391d3d1e75adc1ebd3538dc65640c9.image.webp)

设置完成后保存

# 六、配置一台测试服务器
我直接用本机作为测试服务器，需要新建一个路径作为配置

```js
mkdir /songxuan
```

![image.png](/static/img/ab6f1f8b0e85ad8a1a56141554a8c278.image.webp)

滑下去找到这个

![image.png](/static/img/b88c854204ee22c3ff50977f82af2d2c.image.webp)
然后填写好配置

![image.png](/static/img/d19693394512819cd0a07058fd79c7e1.image.webp)

测试连接没有问题

![image.png](/static/img/f4096fa59bc4d1d3c8e68ae91ef5c912.image.webp)

3.jenkins配置

# 一、下载Mavne包
https://maven.apache.org/download.cgi


![image.png](/static/img/75040e9f34643dd55a173e10c77d2bc4.image.webp)


```js
tar -zxvf  apache-maven-3.8.9-bin.tar.gz  -C /usr/local/
```

```js
cd /usr/local/
```
```js
mv apache-maven-3.8.9/ maven
```

修改配置

```js
vi /usr/local/maven/conf/settings.xml
```
清空全部然后插入以下内容：
```yml
<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    
    
    <mirrors>
        <mirror>
            <id>alimaven</id>
            <name>aliyun maven</name>
            <url>https://maven.aliyun.com/nexus/content/groups/public/</url>
            <mirrorOf>central</mirrorOf>
        </mirror>
    </mirrors>

    
    <profiles>
        <profile>
            <id>jdk-1.8</id>
            <activation>
                <activeByDefault>true</activeByDefault>
                <jdk>1.8</jdk>
            </activation>
            <properties>
                <maven.compiler.source>1.8</maven.compiler.source>
                <maven.compiler.target>1.8</maven.compiler.target>
                <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
            </properties>
        </profile>
    </profiles>
    
    
    <activeProfiles>
        <activeProfile>jdk-1.8</activeProfile>
    </activeProfiles>
</settings>
```

# 二、下载java JKD安装

```js
tar -zxvf jdk1.8.gz
```

```js
mv jdk1.8  /usr/local/
```

2.Maven安装

# 一、安装gitlab
找一台新的服务器，安装好docker和docker-compose
```yml
version: '3.1'
services:
  gitlab:
    image: 'gitlab/gitlab-ce:latest'
    container_name: gitlab
    restart: always
    environment:
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'http://192.168.201.105:8929'
        gitlab_rails['gitlab_shell_ssh_port'] = 2224
    ports:
      - '8929:8929'
      - '2224:2224'
    volumes:
      - './config:/etc/gitlab'
      - './logs:/var/log/gitlab'
      - './data:/var/opt/gitlab'

```
启动
```js
docker-compose up -d
```

需要等待十来分钟初始化

# 二、安装好后根据ip和端口去访问页面
http://192.168.201.105:8929/

默认密码在docker 容器里面

```js
docker exec -it gitlab /bin/sh
```
进入容器后查看密码
```js
cat /etc/gitlab/initial_root_password
```

![image.png](/static/img/f63752bc670a4654d8ce45ce03c4f59d.image.webp)

然后去网页登录，修改密码

![image.png](/static/img/49a9fd56ea6be6f9bcb9ff44eb167997.image.webp)

![image.png](/static/img/7269f07abc0f0a3bf9c0e943eb8cae95.image.webp)