第十六周作业

使用ansible的playbook实现自动化安装httpd

1. 安装 ansible

yum --enablerepo=aliyun_epel install ansible -y

2. 管理哪些主机
   
3. 免密登陆

ssh-keygen -P "" -t rsa -f /root/.ssh/id_rsa &> /dev/null
ssh-copy-id 192.168.43.29
ssh-copy-id 192.168.43.39
ssh-copy-id 192.168.43.49

4. 创建目录结构

mkdir -pv /project/playbook/roles/httpd/{files,handlers,templates,vars,tasks}

5. 文件内容

1） 网站的默认页面 /project/playbook/roles/httpd/files/index.html

www.xuepeng.com

2） /project/playbook/roles/httpd/handlers/main.yml 触发动作

- name: restart
  service: name=httpd state=restarted
- name: check
  shell: killall -0 httpd > /tmp/httpd.log

3 ) 执行的任务
install.yml

- name: install httpd
  yum: name=httpd state=present

config7.yml

- name: config7
  template: src=httpd7.conf.j2 dest=/etc/httpd/conf/httpd.conf
  when: ansible_distribution_major_version=="7"
  notify:
  - restart
  - check

index.yml

- name: default page
  copy: src=index.html dest=/var/www/html/

service.yml

- name: service
  service: name=httpd state=started

main.yml

- include: install.yml
- include: config7.yml
- include: index.yml
- include: service.yml

4 ） 模板文件 /project/playbook/roles/httpd/templates/httpd7.conf.j2
将/etc/httpd/conf/httpd.conf 文件拷贝一份为 httpd7.conf.j2
Listen { {httpd7_port}}

5 ) 变量 /project/playbook/roles/httpd/vars/main.yml

httpd7_port: 8080

5 ） roles 文件
/project/playbook/httpd.role.yml

- hosts: httpdsrvs
  remote_user: root

  roles:
   - httpd

6. 运行 playbook
   
   

建立httpd服务器，要求提供两个基于名称的虚拟主机:

(1)www.xuepeng.com，页面文件目录为/web/vhosts/xuepeng;错误日志为
/var/log/httpd/xuepeng.err，访问日志为/var/log/httpd/xuepeng.access
(2)www.pengpeng.com，页面文件目录为/web/vhosts/pengpeng;错误日志为 /var/log/httpd/pengpeng.err，访问日志为/var/log/httpd/pengpeng.access
(3)为两个虚拟主机建立各自的主页文件index.html，内容分别为其对应的主机名

yum install httpd -y
vim /etc/httpd/conf.d/www.xuepeng.com.conf

        ServerName www.xuepeng.com
        DocumentRoot "/web/vhosts/xuepeng"
        ErrorLog "/var/log/httpd/xuepeng.err"
        CustomLog "/var/log/httpd/xuepeng.access" combined
        
            AllowOverride None
            # Allow open access:
            Require all granted
        


mkdir /web/vhosts/xuepeng/ -pv
echo `hostname` > /web/vhosts/xuepeng/index.html
httpd -t
systemctl start httpd

cp -p www.xuepeng.com.conf www.pengpeng.com.conf
vim www.pengpeng.com.conf
	:%s@xuepeng@pengpeng@g
mkdir /web/vhosts/pengpeng
httpd -t
systemctl restart httpd
echo `hostname` > /web/vhosts/pengpeng/index.html