创建hosts文件

创建ansible-playbook执行时所用到的hosts文件，例如 /etc/redis/hosts 

利用shell命令根据传入的host名和地址写入hosts文件：

#sethosts.shecho [$1] >>/etc/redis/hostscount=2while [ $# -ge 2 ];do    sudo echo $2 >>/etc/redis/hosts    let count=count+1    shiftdone

调用命令：

sh sethosts.sh webservers 10.11.12.13 10.11.12.14

hosts文件：

[webservers]10.11.12.1310.11.12.14

playbook编写

编写设置redis参数的playbook，host以变量传入，就是上一步写入的host名：

#setRedisParam.yml ---- hosts: "{
    {hostname}}"  vars:    http_port: 80    max_clients: 200  remote_user: root  tasks:  - redis:      command: config      name: "{
    {paraname}}"      value: "{
    {paravalue}}"  - name: redis config rewrite    command: /home/admin/redis-4.0.7/src/redis-cli config rewrite

调用playbook的脚本：

#setvar.sh ansible-playbook -i /etc/redis/hosts /setRedisParam.yml --extra-vars "hostname=$1 paraname=$2 paravalue=$3"

调用命令：

sh setvar.sh webservers maxclients 777

java关键代码

利用org.apache.commons.cli.CommandLine进行命令调用

String cmd = "sh";        ExecResult resultAnsibleHosts = shellExecCommand.exec(cmd, setHostsArgs);        ExecResult resultAnsible = shellExecCommand.exec(cmd, ansibleArgs);        if(!resultHosts.isSuccess() ||!resultAnsibleHosts.isSuccess() || !resultAnsible.isSuccess()){            return null;        }