00 kubernetes 准备

centos7 设置固定 IP

虚拟机的网络连接方式：NAT

mac 终端输入：

• cd /Library/Preferences/VMware\ Fusion/vmnet8
• cat nat.conf

获取到下面的信息，留着后面用

# NAT gateway address
ip = 192.168.190.2 # 这个 ip 就是 gateway
netmask = 255.255.255.0

再在 Mac 终端输入：cat dhcpd.conf

获取到下面的信息，留着后面用

range 192.168.190.128 192.168.190.254;

在 系统偏好设置>网络>高级>DNS 获取到 DNS 地址，后面用

在 虚拟机 输入：

• cd /etc/sysconfig/network-scripts

• vi ifcfg-ens33

  • BOOTPROTO=static

  • ONBOOT=yes

  • 添加：

    IPADDR=192.168.190.131 #自定义静态ip，需要在上面的range范围内
    GATEWAY=192.168.190.2 #gateway，拿上面的
    NETMASK=255.255.255.0 #netmask，同样拿上面的
    DNS1=10.90.200.1 #dns,也是拿上面的
    

重启网络：service network restart

测试：ping www.baidu.com

如果换了网络 DNS 改变，只需 vi ifcfg-ens33 添加 DNS

centos7 安装 Docker

1. 安装基础软件
   curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum install -y yum-utils device-mapper-persistent-data lvm2 wget

2. 设置阿里云的源

   • 在 /etc/yum.repos.d 目录下创建 docker-ce.repo 文件

   • vim docker-ce.repo

   • [docker-ce-stable]
     name=Docker CE Stable - $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/stable
     enabled=1
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-stable-debuginfo]
     name=Docker CE Stable - Debuginfo $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/stable
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-stable-source]
     name=Docker CE Stable - Sources
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/stable
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-edge]
     name=Docker CE Edge - $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/edge
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-edge-debuginfo]
     name=Docker CE Edge - Debuginfo $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/edge
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-edge-source]
     name=Docker CE Edge - Sources
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/edge
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-test]
     name=Docker CE Test - $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/test
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-test-debuginfo]
     name=Docker CE Test - Debuginfo $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$basearch/test
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-test-source]
     name=Docker CE Test - Sources
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/source/test
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-nightly]
     name=Docker CE Nightly - $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/$basearch/nightly
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     
     [docker-ce-nightly-debuginfo]
     name=Docker CE Nightly - Debuginfo $basearch
     baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/debug-$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/7/source/nightly
     enabled=0
     gpgcheck=1
     gpgkey=https://mirrors.aliyun.com/docker-ce/linux/centos/gpg
     

3. 安装 docker yum install docker-ce-19.03.11 -y
4. 启动 docker 并加入开机自启动
   • systemctl start docker
   • systemctl enable docker

在 docker 上运行 MySQL

1. 创建 docker 持久化配置和数据目录

   • 创建

     • mkdir /opt/mysql
     • mkdir /opt/mysql/conf.d
     • mkdir /opt/mysql/data/

   • 配置文件

     • vi /opt/mysql/my.cnf

     • [mysqld]
       user=mysql
       character-set-server=utf8
       default_authentication_plugin=mysql_native_password
       secure_file_priv=/var/lib/mysql
       expire_logs_days=7
       sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
       max_connections=1000
       
       [client]
       default-character-set=utf8
       
       [mysql]
       default-character-set=utf8
       
       

2. 运行 MySQL docker 镜像

   • docker run \
      --name mysql57 \
      -p 3306:3306 \
      -v /opt/mysql/data:/var/lib/mysql \
      -v /opt/mysql/log:/var/log/mysql \
      -v /opt/mysql/my.cnf:/etc/mysql/my.cnf:rw \
      -e MYSQL_ROOT_PASSWORD=password \
      -d registry.cn-beijing.aliyuncs.com/qingfeng666/mysql:5.7 --default-authentication-plugin=mysql_native_password
     
     

3. 安装 MySQL 客户端

   • yum install -y mysql

4. 登录 MySQL

   • mysql -uroot -h127.0.0.1 -p
   • 输入密码：password

5. 创建数据库

   • CREATE DATABASE `blogDB` CHARACTER SET utf8 COLLATE utf8_general_ci;
     

6. 查看数据库

   • show databases;
     • 可以看到 blogDB 数据库

7. 设置容器外访问 MySQL 容器

   • UPDATE mysql.user SET host='%' WHERE user='root';
     

   • flush privileges;

8. 重启容器

   • 重启虚拟机之后，MySQL 容器需要重启

     • docker ps -a 获取到 CONTAINER ID

     • docker start CONTAINER ID