ansible hosts配置
- 编辑/etc/ansible/hosts
- 添加本机的public SSH key到目标机器的authorized_keys #ssh-copy-id
- 添加本机的私钥到Ansible
- 运行ansible all -m ping 测试是否添加成功
Inventory 分组
Ansible可同时操作属于一个组的多台主机，组和主机之间的关系通过inventory文件配置，默认文件路径为/etc/ansible/hosts
常用参数配置：
ansible_ssh_host # 目标主机地址
ansible_ssh_port # 目标主机端口，默认22
ansible_ssh_user # 目标主机用户
ansible_ssh_pass # 目标主机ssh密码
ansible_sudo_pass # sudo密码
ansible_sudo_exe
ansible_connection # 与主机的连接类型，比如：local,ssh或者paramiko
ansible_ssh_private_key_file # 私钥地址
ansible_shell_type # 目标系统的shell类型
ansible_python_interpreter # python版本
格式：[组名]
例如 :
[test] # 组名
10.0.0.1 # 主机ip 或者10.0.0.1:65522 自定义端口
别名
s1 ansible_ssh_port=65522 ansible_ssh_host=10.0.0.1 ansible_ssh_user=simon # 别名s1
连续的主机
[g1]
g[1:50].example.com
g[a-f].example.com
[all:vars] # *:vars 块变量，all:vars 全局变量 ansible_ssh_private_key_file=/root/.ssh/id_rsa ansible_ssh_port=22 ansible_ssh_user=root [t3:vars] # t3 使用python解释器是python2 ansible_python_interpreter=/usr/bin/python2 nginx_port=80 # 私有变量在playbooks中使用 [t3] 192.168.11.162 [k8s:children] # 使用children 定义主机组之间继承关系 master node [master] k8s-master01 ansible_ssh_host=192.168.11.101 k8s-master01 ansible_ssh_host=192.168.11.102 [node] k8s-node01 ansible_ssh_host=192.168.11.105 k8s-node01 ansible_ssh_host=192.168.11.106
Inventory 分文件管理(文件名即是组名)
分文件：
/etc/ansible/group_vars/vim
/etc/ansible/group_vars/webservers
/etc/ansible/host_vars/foosball
vim 文件中的内容： 变量
ntp_server: acme.example.org
db_server: 10.0.0.1
分文件夹：(文件夹就是组名)
/etc/ansible/group_vars/vim/install
/etc/ansible/group_vars/vim/init
/etc/ansible/host_vars/foosball
1 #!/usr/bin/env python 2 # _*_coding:utf-8_*_ 3 4 """ 5 @Time : 2019/11/8 15:54 6 @Author: Simon 7 @File: get_ansible_hosts.py 8 @Software: PyCharm 9 """ 10 11 try: 12 from ansible.parsing.dataloader import DataLoader 13 from ansible.inventory.manager import InventoryManager 14 from ansible.vars.manager import VariableManager 15 except ImportError as e: 16 print("请安装ansible模块, 安装方式pip install ansible") 17 18 19 def main(sources): 20 """ 21 # 获取ansible hosts 列表 22 :param sources: 23 :return: 24 """ 25 hosts_list = [] 26 loader = DataLoader() 27 inventory = InventoryManager(loader=loader, sources=sources) 28 variable_manager = VariableManager(loader=loader, inventory=inventory) 29 get_groups_dict = inventory.get_groups_dict() 30 host_list = inventory.hosts 31 for _host in host_list: 32 host = inventory.get_host(hostname=_host) 33 extra_vars = variable_manager.get_vars(host=host) 34 extra_vars_group = extra_vars.get("groups") 35 ans_port = extra_vars.get("ansible_ssh_port") if extra_vars.get("ansible_ssh_port") else extra_vars.get( 36 "ansible_port") 37 ans_host = extra_vars.get("ansible_ssh_host") if extra_vars.get("ansible_ssh_host") else extra_vars.get( 38 "ansible_host") 39 hosts_list.append({ 40 "hostname": extra_vars.get("inventory_hostname"), 41 "host": ans_host, 42 "port": ans_port if ans_port else 22, 43 "group_name": extra_vars.get("group_names") 44 }) 45 46 return hosts_list 47 48 49 if __name__ == "__main__": 50 sources = ["/etc/ansible/hosts"] 51 print(main(sources))
