git

标准流程（4 步）
bash
# 1. 查看当前状态（改了哪些文件）
git status

# 2. 查看具体改了什么（可选但推荐）
git diff

# 3. 把改动加入暂存区
git add <文件> # 添加指定文件
git add . # 添加当前目录所有改动
git add -A # 添加所有改动（含删除、新增）

# 4. 提交到本地仓库
git commit -m "提交说明"

# 5. 推送到远程
git push
注意：git add 和 git commit 是本地操作，git push 才会上传到远程（如 GitHub）。

**安装git，如果只是配置管理，就不需要gitlab

**现在centos 仓库无法安装，修改为阿里云

[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

** yum clean all

*******************

yum install -y git
创建 Git 用户：
useradd -m git
创建仓库：
mkdir -p /opt/git
chown -R git:git /opt/git
切换：
su - git
创建 Bare Repository：
git init --bare /opt/git/dnsmasq.git
得到：
/opt/git/dnsmasq.git
注意这里：
dnsmasq.git
不是普通工作目录。
它是：
Bare Repository
专门用来接收：
git push

******创建git 接受ssh文件

一步：创建 .ssh
使用 root：
sudo mkdir -p /home/git/.ssh
设置所有者：
sudo chown git:git /home/git/.ssh
设置权限：
sudo chmod 700 /home/git/.ssh
第二步：创建 authorized_keys
sudo touch /home/git/.ssh/authorized_keys
然后：
sudo chown git:git /home/git/.ssh/authorized_keys
sudo chmod 600 /home/git/.ssh/authorized_keys

**client生成 SSH Key：
ssh-keygen -t ed25519
把：
id_ed25519.pub
放到：
/home/git/.ssh/authorized_keys
然后：
ssh git@10.0.213.100
测试成功后：
git clone git@10.0.213.100:/opt/git/dnsmasq.git
于是本地：
dnsmasq/
就是你的配置仓库。

** client本地clone 后，创建目录，按照common 、node 和script 来

mkdir -p /opt/git/dnsmasq
cd /opt/git/dnsmasq

mkdir -p common
mkdir -p nodes/dns01
mkdir -p nodes/dns02
mkdir -p scripts

touch README.md
touch common/10-local.conf
touch common/20-internal.conf
touch common/30-device.conf
touch nodes/dns01/dns01.conf
touch nodes/dns02/dns02.conf
touch scripts/validate.sh