云服务器基础架构部署

云平台部署管理架构图

公有云配置

区域： 同一个区域中的云主机是可以互相连通的，不通区域云主机是不能使用内部网络互相通信的

华为云yum源配置 https://support.huaweicloud.com/ecs_faq/ecs_faq_1003.html

- 跳板机配置

配置yum源，安装软件包

[root@ecs-proxy ~]# rm -rf /etc/yum.repos.d/*.repo
[root@ecs-proxy ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.myhuaweicloud.com/repo/CentOS-Base-7.repo
[root@ecs-proxy ~]# yum clean all
[root@ecs-proxy ~]# yum makecache
[root@ecs-proxy ~]# yum install -y net-tools lftp rsync psmisc vim-enhanced tree vsftpd  bash-completion createrepo lrzsz iproute
[root@ecs-proxy ~]# mkdir /var/ftp/localrepo
[root@ecs-proxy ~]# cd /var/ftp/localrepo
[root@ecs-proxy ~]# createrepo  .
[root@ecs-proxy ~]# createrepo --update .                       # 更新命令
[root@ecs-proxy ~]# systemctl enable --now vsftpd

优化系统服务

[root@ecs-proxy ~]# systemctl stop postfix atd tuned
[root@ecs-proxy ~]# yum remove -y postfix at audit tuned kexec-tools firewalld-*
[root@ecs-proxy ~]# vim /etc/cloud/cloud.cfg
# manage_etc_hosts: localhost 注释掉这一行
[root@ecs-proxy ~]# reboot

补充：
优化原则：卸载掉所有非必要的服务
/etc/cloud/cloud.cfg 是华为云服务器内置文件，manage_etc_hosts: localhost 代表开机自启动一些服务配置

安装配置ansible管理主机

[root@ecs-proxy ~]# tar zxf ansible_centos7.tar.gz
[root@ecs-proxy ~]# yum install -y ansible_centos7/*.rpm
[root@ecs-proxy ~]# ssh-keygen -t rsa -b 2048 -N '' -f /root/.ssh/id_rsa
[root@ecs-proxy ~]# chmod 0400 /root/.ssh/id_rsa
[root@ecs-proxy ~]# ssh-copy-id -i /root/.ssh/id_rsa 模板主机IP

- 模板镜像配置

配置yum源，安装软件包

[root@ecs-host ~]# rm -rf /etc/yum.repos.d/*.repo
[root@ecs-host ~]# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.myhuaweicloud.com/repo/CentOS-Base-7.repo
[root@ecs-host ~]# vim /etc/yum.repos.d/local.repo 
[local_repo]
name=CentOS-$releasever – Localrepo
baseurl=ftp://192.168.1.252/localrepo
enabled=1
gpgcheck=0
[root@ecs-host ~]# yum clean all
[root@ecs-host ~]# yum makecache
[root@ecs-host ~]# yum repolist
[root@ecs-host ~]# yum install -y net-tools lftp rsync psmisc vim-enhanced tree lrzsz bash-completion iproute

优化系统服务

[root@ecs-host ~]# systemctl stop postfix atd tuned
[root@ecs-host ~]# yum remove -y postfix at audit tuned kexec-tools firewalld-*
[root@ecs-host ~]# vim /etc/cloud/cloud.cfg
# manage_etc_hosts: localhost 注释掉这一行
[root@ecs-host ~]# yum clean all 
[root@ecs-host ~]# poweroff

• 关机以后把主机系统盘制作为模板

网站云平台部署实战

网站架构图

实验要求：购买3台云主机，部署 apache + php 的网站

云主机名称	云主机IP地址	云主机配置
web-0001	192.168.1.11	1CPU，1G内存
web-0002	192.168.1.12	1CPU，1G内存
web-0003	192.168.1.13	1CPU，1G内存

[root@ecs-proxy ~]# mkdir -p web-site
[root@ecs-proxy ~]# cd web-site
[root@ecs-proxy ~]# vim ansible.cfg
[defaults]
inventory         = hostlist
host_key_checking = False
[root@ecs-proxy ~]# vim hostlist
[web]
192.168.1.[11:13]
[root@ecs-proxy ~]# vim web_install.yaml
---
- name: web 集群安装
  hosts: web
  tasks:
  - name: 安装 apache 服务 
    yum:
      name: httpd,php
      state: latest
      update_cache: yes
  - name: 配置 httpd 服务 
    service:
      name: httpd
      state: started
      enabled: yes
  - name: 部署网站网页
    unarchive:
      src: files/webhome.tar.gz
      dest: /var/www/html/
      copy: yes
      owner: apache
      group: apache
[root@ecs-proxy ~]# mkdir files
# 上传 webhome.tar.gz 到 files 目录下
[root@ecs-proxy ~]# ansible-playbook web_install.yaml

• 通过购买华为云负载均衡部署访问，通过浏览器查看结果