环境准备
关于jdk和tomcat的安装:安装tomcat和web站点部署
本机上已经成功安装好了jdk+tomcat,才有模板让其他几十台机器安装成功。
jdk安装目录: /usr/local/jdk1.8/
tomcat安装目录:/usr/local/tomcat/
环境变量配置文件:/etc/profile
tomcat下有一个zrlog站点,站点目录为/data/wwwroot/test.com/
机器有限:
192.168.247.170(ansible服务器)
192.168.247.180 (给它安装)
创建一个主机群将192.168.247.180添加:
vim /etc/ansible/hosts
#添加,多个机器可以写多行
[testhost]
192.168.247.180
开始
一.创建用于ansible安装jdk+tomcat的目录:
mkdir jdk_tomcat_install
cd jdk_tomcat_install
mkdir -p roles/{common,install}/{handlers,templates,vars,tasks,files,meta}
打包jdk安装目录:
cd /usr/local/jdk1.8/
tar -zvcf jdk1.8.tar.gz ./
mv jdk1.8.tar.gz /etc/ansible/jdk_tomcat_install/roles/install/files/
打包tomcat安装目录
cd /usr/local/tomcat/
tar -zcvf tomcat.tar.gz ./* --exclude "server.xml"
mv tomcat.tar.gz /etc/ansible/jdk_tomcat_install/roles/install/files/
编写一个脚本,用于添加环境变量,注意ansible并不会读取/etc/profile里面的变量,只会读取~/.bashrc里面的,或者做个软链接:
#!/bin/bash
if [ ! -e "/bin/java" ]
then
ln -s /usr/local/jdk1.8/bin/jar /bin/jar
ln -s /usr/local/jdk1.8/bin/java /bin/java
ln -s /usr/local/jdk1.8/bin/javah /bin/javah
ln -s /usr/local/jdk1.8.0_60/bin/javac /bin/javac
ln -s /usr/local/jdk1.8/bin/javadoc /bin/javadoc
fi
把配置文件放到templates目录下:
cp /usr/local/tomcat/conf/server.xml templates/
设置自己需要的变量vars:
vim vars/main.yml
jdk_basedir: /usr/local/jdk1.8
tomcat_basedir: /usr/local/tomcat
编写一个copy任务,将包和配置文件等copy到要安装的其他机器上去:
vim tasks/copy.yml
---
- name: copy jdk software
copy: src=jdk1.8.tar.gz dest=/tmp/jdk1.8.tar.gz owner=root group=root
- name: copy tomcat software
copy: src=tomcat.tar.gz dest=/tmp/tomcat.tar.gz owner=root group=root
- name: uncompress jdk
shell: tar zxf /tmp/jdk1.8.tar.gz -C /usr/local/jdk1.8
- name: uncompress tomcat
shell: tar zxf /tmp/tomcat.tar.gz -C /usr/local/tomcat
- name: copy path
copy: src=path.sh dest=/tmp/path.sh owner=root group=root mode=0755
- name: bash path
shell: /bin/bash /tmp/path.sh
- name: tomcat config
template: src=server.xml dest={{ tomcat_basedir }}/conf/ owner=root owner=root mode=0644
编写一个安装tasks,注意tomcat一定要按照下面的方式执行,否则成功不了:
vim tasks/install.yml
---
- name: start tomcat service
shell: nohup /usr/local/tomcat/bin/startup.sh &
- name: delete jdk compress
shell: rm -rf /tmp/jdk1.8.tar.gz
- name: delete tomcat compress
shell: rm -rf /tmp/tomcat.tar.gz
创建一个task,调用copy和install:
vim tasks/main.yml
- include: copy.yml
- include: install.yml
做好这些之后,我们需要单独写一个创建所需要的目录脚本文件,放在command里面,这样可以省去很多麻烦:
cd /etc/ansible/jdk_tomcat_install/roles/common/
#创建脚本
vim files/dir.sh
#!/bin/bash
if [ ! -d "/usr/local/jdk1.8" ]
then
mkdir /usr/local/{jdk1.8,tomcat}
mkdir -p /data/wwwroot/test.com/
fi
#添加tasks
vim tasks/main.yml
---
- name: copy shell
copy: src=dir.sh dest=/tmp/dir.sh owner=root group=root mode=0755
- name: create dir
shell: /bin/bash /tmp/dir.sh
最后,创建一个入口文件,用于ansible-playbook:
cd /etc/ansible/jdk_tomcat_install/
---
- hosts: testhost
remote_user: root
gather_facts: True
roles:
- common
- install
执行
执行前检查主机是否连通:
ansible testhost -m ping -u root
执行:
ansible-playbook /etc/ansible/jdk_tomcat_install/install.yml
发布站点
发布站点涉及到配置文件和站点的更新和回滚。
创建目录,毕竟发布站点的时候已经不需要再初始化安装一次了。
cd /etc/ansible/
mkdir tomcat_config
cd tomcat_config/
mkdir -p /etc/ansible/tomcat_config/roles/{new,old}/{files,handlers,vars,tasks}
更新数据:
把配置文件和站点数据先移到files目录下:
cd roles/new/
cp /usr/local/tomcat/conf/server.xml /etc/ansible/tomcat_config/roles/new/files/
cd roles/new/
tar -zcvf data.tar.gz ./*
mv data.tar.gz /etc/ansible/tomcat_config/roles/new/files/
配置handlers:
vim handlers/main.yml
- name: restart tomcat
shell: /usr/local/tomcat/bin/shutdown.sh && nohup /usr/local/tomcat/bin/startup.sh &
配置tasks:
vim tasks/main.yml
- name: copy conf file
copy: src=server.xml dest=/usr/local/tomcat/conf/server.xml backup=yes owner=root group=root mode=0644
- name: copy web data
copy: src=data.tar.gz dest=/tmp/data.tar.gz
- name: web data
shell: tar -zxf /tmp/data.tar.gz -C /data/wwwroot/test.com/
notify: restart tomcat
配置入口文件:
vim /etc/ansible/tomcat_config/update.yml
---
- hosts: testhost
user: root
roles:
- new
执行:
ansible-playbook /etc/ansible/tomcat_config/update.yml
回滚数据,就是在更新之前把new的数据全部拷贝到old里面,再生成一个old入口,执行就好。