ansible 安装部署详解（待更新）

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• 安装ansible
  epel，ansible
  yum -y install epel-release
  ansible安装:
  yum -y install ansible
• 主程序：
  ansible
  ansible-playbook
  ansible-doc
  ansible的简单使用格式：
  ansible HOST-PATTERN -m MOD_NAME -a MOD_ARGS
• ansible的常用模块：
  获取模块列表：
  ansible-doc -l
  ansible-doc获取帮助：
  ansible-doc -h
  -s：显示模块的参数信息
  例如：
  
  

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]# ansible-doc -s ping - name: Try to connect to host, verify a usable python and return `pong' on success. action: ping

  command模块（默认）：在远程主机运行命令

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]# ansible-doc -s command - name: Executes a command on a remote node   action: command       chdir          # cd into this directory before running the command       creates         # a filename or (since 2.0) glob pattern, when it already exists, this step will                       *not* be run.       executable       # change the shell used to execute the command. Should be an absolute path to the                                executable.       free_form=       # the command module takes a free form command to run.  There is no parameter                                actually named 'free form'. See the examples!       removes         # a filename or (since 2.0) glob pattern, when it does not exist, this step will                        *not* be run.       warn           # if command warnings are on in ansible.cfg, do not warn about this particular                        line if set to no/false.

注意：command模块不支持管道

  shell模块：远程主机在shell进程下运行命令，支持shell特性，如管道等
  例如：

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]# ansible all -m shell -a 'echo xin |passwd --stdin user1' 192.168.57.130 | SUCCESS | rc=0 >> 更改用户 user1 的密码 。 passwd： 所有的身份验证令牌已经成功更新。 192.168.57.128 | SUCCESS | rc=0 >> 更改用户 user1 的密码 。 passwd：所有的身份验证令牌已经成功更新。

copy模块：把本地文件拷贝到远程主机
  例如：

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]# ansible all -m copy -a "src=/etc/fstab dest=/tmp/fstab" 192.168.57.128 | SUCCESS => {     "changed": true,     "checksum": "96da61260bfa0930d07ba59d324a973eed9fd51f",     "dest": "/tmp/fstab",     "gid": 0,     "group": "root",     "md5sum": "0f081fe397e86456d1a14eb516c2db68",     "mode": "0644",     "owner": "root",     "secontext": "unconfined_u:object_r:admin_home_t:s0",     "size": 501,     "src": "/root/.ansible/tmp/ansible-tmp-1484386476.59-59078606587651/source",     "state": "file",     "uid": 0 } 192.168.57.130 | SUCCESS => {     "changed": true,     "checksum": "96da61260bfa0930d07ba59d324a973eed9fd51f",     "dest": "/tmp/fstab",     "gid": 0,     "group": "root",     "md5sum": "0f081fe397e86456d1a14eb516c2db68",     "mode": "0644",     "owner": "root",     "size": 501,     "src": "/root/.ansible/tmp/ansible-tmp-1484386477.82-55437091606538/source",     "state": "file",     "uid": 0 }