centos7.6中Docker的安装部署

刺骨的言语ヽ痛彻心扉 2024-04-03 11:55 57阅读 0赞

**目录**

一、环境要求

二、安装Docker

1、安装依赖环境

2、设置阿里云镜像源

3、安装docker-ce版本

4、开启docker

三、阿里云镜像加速

1、登入阿里云找到----》容器镜像服务

2、 配置镜像加速器

四、 Docker优化

--------------------

## 一、环境要求 ##

[root@zwb_nginx_mysql1 ~]# hostnamectl set-hostname zwb_docker
    
    [root@zwb_nginx_mysql1 ~]# su
    [root@zwb_docker ~]# uname -r        ## 注意系统内核必须是3.10以上
    3.10.0-957.el7.x86_64
    
    
    [root@zwb_docker ~]# systemctl stop firewalld.service
    [root@zwb_docker ~]# setenforce 0
    setenforce: SELinux is disabled

## 二、安装Docker ##

### 1、安装依赖环境 ###

## 安装依赖环境
    [root@zwb_docker ~]# yum install -y yum-utils device-mapper-persistentdata lvm2

### 2、设置阿里云镜像源 ###

[root@zwb_docker ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo                   ## 配置阿里云yum源
    已加载插件：fastestmirror, langpacks
    adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
    grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
    repo saved to /etc/yum.repos.d/docker-ce.repo
    [root@zwb_docker ~]# cd /etc/yum.repos.d/   
    [root@zwb_docker yum.repos.d]# ls
    CentOS-Base.repo       CentOS-Sources.repo
    CentOS-CR.repo         CentOS-Vault.repo
    CentOS-Debuginfo.repo  docker-ce.repo
    CentOS-fasttrack.repo  epel.repo
    CentOS-Media.repo      epel-testing.repo
    [root@zwb_docker yum.repos.d]# cat docker-ce.repo 
    [docker-ce-stable]
    name=Docker CE Stable - $basearch
    
    ''''''''''''''''''''''''''''''''''''''''''''''''
    gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
    
    [docker-ce-nightly-debuginfo]
    name=Docker CE Nightly - Debuginfo $basearch
    baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/$releasever/debug-$basearch/nightly
    enabled=0
    gpgcheck=1
    gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
    
    [docker-ce-nightly-source]
    name=Docker CE Nightly - Sources
    baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/$releasever/source/nightly
    enabled=0
    gpgcheck=1
    gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
    
    
    [root@zwb_docker yum.repos.d]# yum makecache fast          ### 更新yum软件索引

### 3、安装docker-ce版本 ###

docker-ce为社区版

docker-ee为企业网版

[root@zwb_docker yum.repos.d]# yum -y install docker-ce   ## 安装

### 4、开启docker ###

[root@zwb_docker yum.repos.d]# systemctl enable docker.service --now
    Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
    
    
    ############# 设置为开机启动并且立即启动

## 三、**阿里云镜像加速** ##

### 1、登入阿里云找到----》容器镜像服务 ###

![785202b2919740dab615a7eaefecfc5f.png][]

![cececf94ef294a3e9807bf70e93eb7ec.png][]

![ef275f02f01549f9928f04c08a4f8159.png][]

### 2、 配置镜像加速器 ###

### 配置镜像加速器
    [root@zwb_docker yum.repos.d]# cd /etc/docker/
    [root@zwb_docker docker]# ls
    key.json
    
    
    [root@zwb_docker docker]# sudo tee /etc/docker/daemon.json <<-'EOF' ###上图标6的部分复制而来
    > {
    >   "registry-mirrors": ["https://4xxxxxxx.mirror.aliyuncs.com"]
    > }
    > EOF
    {
      "registry-mirrors": ["https://4xxxxxxx.mirror.aliyuncs.com"]

sudo systemctl daemon-reload     ## 重新加载
    sudo systemctl restart docker    ## 重启docker

![cbaaccacdccc46c895064ddc686a683f.png][]

## 四、 Docker优化 ##

开启转发功能

[root@zwb_docker docker]# vim /etc/sysctl.conf 
    
    # sysctl settings are defined through files in
    # /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
    #
    # Vendors settings live in /usr/lib/sysctl.d/.
    # To override a whole file, create a new file with the same in
    # /etc/sysctl.d/ and put new settings there. To override
    # only specific settings, add a file with a lexically later
    # name in /etc/sysctl.d/ and put new settings there.
    #
    # For more information, see sysctl.conf(5) and sysctl.d(5).
    net.ipv4.ip_forward=1                                         ### 开启转发功能
    
    
    [root@zwb_docker docker]# sysctl -p
    net.ipv4.ip_forward = 1
    
    
    [root@zwb_docker docker]# systemctl restart network
    [root@zwb_docker docker]# systemctl restart docker.service

[785202b2919740dab615a7eaefecfc5f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/03/f9605b3c063e4d71bfe367c2cb84444c.png
[cececf94ef294a3e9807bf70e93eb7ec.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/03/42cf843ab8374c66884487b8e613947c.png
[ef275f02f01549f9928f04c08a4f8159.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/03/222b5593e1124266b252248820672582.png
[cbaaccacdccc46c895064ddc686a683f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/03/84ee694edb11451b99a247ec1a455cbe.png