JAVA调用shell脚本利用ansible修改多节点上的redis参数

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.sh

echo [$] >>/etc/redis/hosts
count=
while [ $# -ge  ];do
    sudo echo $ >>/etc/redis/hosts
    let count=count+
    shift
done

调用命令：

sh sethosts.sh webservers 10.11.12.13 10.11.12.14

hosts文件：

[webservers]
10.11.12.13
10.11.12.14

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:
    max_clients:
  remote_user: root
  tasks:
  - redis:
      command: config
      name: "{{paraname}}"
      value: "{{paravalue}}"

  - name: redis config rewrite
    command: /home/admin/redis-4.0./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 

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;
        }