在线yum安装

[root@summer ~]# yum install -y epel-release  ##先安装epel源
[root@summer ~]# yum install ansible -y    
[root@summer ~]# ansible --version
ansible 2.9.15
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Apr  2 2020, 13:16:51) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
[root@summer ~]# 

离线安装

略

思路是yum获取所有的依赖包

配置免密登录

1. host配置

[root@summer ~]# vim /etc/ansible/host
[redis]
192.168.0.68 ansible_ssh_user=root ansible_ssh_pass=hadoop prot=27000
192.168.0.186 ansible_ssh_user=root ansible_ssh_pass=1340904087 prot=27000
192.168.0.90 ansible_ssh_user=root ansible_ssh_pass=1340904087 prot=27000
...

2. 免密互信

这里注意添加本机ip

[root@summer ~]# ssh-keygen -t rsa
[root@summer ~]# ssh-copy-id 192.168.0.68
[root@summer ~]# ssh-copy-id 192.168.0.90
[root@summer ~]# ssh-copy-id 192.168.0.186

3. 验证

• 列出所有被管理主机list

ansible all --list

• ping各节点

ansible all -m ping

• 查看hostname

ansible summer -m shell -a 'hostname' -o

• 查看主机内存信息

ansible all -m setup -a 'filter=ansible_*_mb'

• 创建文件夹

ansible summer -m file -a 'path=/home/app state=directory'

• 查看文件

ansible summer -m shell -a 'ls -l /home/app'

• 删除文件

ansible summer -m file -a 'path=/home/app state=absent'

• 复制文件到本机

ansible summer -m fetch -a 'src=/home/app/123.txt dest=/home'