背景：尽管yum和service模块安装和管理相应服务很方便，但实际生产中，一般需要使用源码安装
思路：先在一台机器上编译安装好nginx，打包，再用ansible分发下去
1. 创建相关目录和配置文件，整体树状图
mkdir /etc/ansible/nginx_install
1.1 vim /etc/ansible/nginx_install/install.yml #总安装文件
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---
- hosts: agent.huangzp.com
remote_user: root
gather_facts: True
roles:
- common
-
install
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1.2 mkdir -p roles/commom/tasks # 安装前准备工作目录以及配置文件
commom：下面建一个tasks目录就行了
vim /etc/ansible/nginx_install/roles/common/tasks/main.yml # 入口文件main.yml，安装nginx依赖包
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- name:
install
initaliztion require software
yum: name={{ item }} state=installed
with_items:
- zlib-devel
- pcre-devel
- openssl-devel
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1.3 mkdir -p roles/install/{handlers,files,meta,tasks,template,vars} # 安装主配置目录
tasks：核心配置文件，分发资源和安装nginx
1）vim /etc/ansible/nginx_install/roles/install/tasks/main.yml #入口文件，包含了 copy.yml和install.yml两个配置文件
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- include: copy.yml
- include:
install
.yml
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2） vim /etc/ansible/nginx_install/roles/install/tasks/copy.yml #拷贝压缩包、解压缩、拷贝启动脚本、拷贝配置文件
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- name: copy nginx software
copy: src=nginx.
tar
.gz dest=
/tmp/nginx
.
tar
.gz owner=root group=root
#copy模块相对目录files
- name: uncompression nginx software
shell:
tar
zxf
/tmp/nginx
.
tar
.gz -C
/usr/local/
- name: copy nginx start script
template: src=nginx dest=
/etc/init
.d
/nginx
owner=root group=root mode=0755
#template模块相对目录templates
- name: copy nginx config
template: src=nginx.conf dest={{ nginx_basedir }}
/conf/
owner=root goup=root mode=0644
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3）vim /etc/ansible/nginx_install/roles/install/tasks/install.yml # 创建运行用户、启动nginx服务、添加至系统服务、删除压缩文件
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- name: create nginx user
user: name={{ nginx_user }} state=present createhome=no shell=
/sbin/nologin
- name: start nginx service
service: name=nginx state=started
- name: add boot start nginx service
shell: chkconfig --level 345 nginx on
- name: delete nginx compression files
shell:
rm
-rf
/tmp/nginx
.
tar
.gz
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vars：定义变量
vim /etc/ansible/nginx_install/roles/install/vars/main.yml #定义变量运行用户、端口、安装目录
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nginx_user: www
nginx_port: 80
nginx_basedir:
/usr/local/nginx
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files：存放nginx.tar.gz等文件
tar -zcf nginx.tar.gz /usr/local/nginx
cp /usr/local/nginx.tar.gz /etc/ansible/nginx_install/roles/install/files/
templates：模板配置文件，如启动脚本模板
cp /usr/local/nginx/conf/nginx.conf /etc/ansible/nginx_install/roles/install/template/
cp /etc/init.d/nginx /etc/ansible/nginx_install/roles/install/template/
handlers：发生改变要执行的操作，如配置文件改变，则重启服务
meta：说明信息，角色依赖等，一般用不着
2. 执行总配置文件ansible-playbook install.yml
