IP
|
用途
|
备注
|
|---|---|---|
| 192.168.10.11 | ansible-server | |
| 192.168.10.12 | ansible-client | |
| 192.168.10.13 | ansible-client |
通过ansible-playbook 安装nginx服务
#tree ansible
./
├── hosts #定义主机文件
├── nginx.conf.j2 #nginx配置文件
└── nginx.yaml #ansible-playbook配置文件
主机配置文件
#cat hosts
[web]
192.168.10.12 ansible_ssh_port=22 ansible_ssh_user=root ansible_ssh_pass=xxxxxx
192.168.10.13 ansible_ssh_port=22 ansible_ssh_user=root ansible_ssh_pass=xxxxxx
[web:vars]
ansible_python_interpreter=/usr/bin/python2.6 #定义web组python路径
#nginx.conf.j2 配置文件，略过......
PS:worker_processes {{ ansible_processor_cores }}; #可根据CPU实际核心，获取取实际核数值
可根据nginx.conf配置修改
#nginx.yaml 配置文件
#cat nginx.yaml
---
- hosts: all
tasks:
- name: Install Nginx Package
yum: name=nginx state=present
template: src=./nginx.conf.j2 dest=/etc/nginx/nginx.conf
owner=root group=root mode=0644 validate='nginx -t -c %s'
notify:
- ReStart Nginx Service
handlers:
- name: ReStart Nginx Service
service: name=nginx state=restarted
ansible-playbook 应用
检查语法
#ansible-playbook -i hosts nginx.yaml --syntax-check
查看目标主机
#ansible-playbook -i hosts nginx.yaml --list-hosts
playbook: nginx.yaml
play #1 (all): host count=2
192.168.10.12
192.168.10.13
PS:-i 参数指定hosts文件，默认调用/etc/ansible/hosts
安装 nginx
#ansible-playbook -i hosts nginx.yaml -f 2
PLAY [all] ********************************************************************
GATHERING FACTS ***************************************************************
ok: [192.168.10.12]
ok: [192.168.10.13]
TASK: [Install Nginx Package] *************************************************
ok: [192.168.10.12]
ok: [192.168.10.13]
TASK: [Copy Nginx.conf] *******************************************************
ok: [192.168.10.12]
ok: [192.168.10.13]
PLAY RECAP ********************************************************************
192.168.10.12 : ok=3 changed=0 unreachable=0 failed=0
192.168.10.13 : ok=3 changed=0 unreachable=0 failed=0
PS:-f 并发进程数，默认是5
指定task运行
#ansible-playbook -i hosts nginx.yaml -f 2 --start-at-task='Copy Nginx.conf'
PLAY [all] ********************************************************************
GATHERING FACTS ***************************************************************
ok: [192.168.10.12]
ok: [192.168.10.13]
TASK: [Copy Nginx.conf] *******************************************************
ok: [192.168.10.12]
ok: [192.168.10.13]
PLAY RECAP ********************************************************************
192.168.10.12 : ok=2 changed=0 unreachable=0 failed=0
192.168.10.13 : ok=2 changed=0 unreachable=0 failed=0
检查80端口是否启动成功
#ansible web -i /root/ansible/hosts -m shell -a "netstat -ntlp | grep :80" -o
192.168.10.12 | success | rc=0 | (stdout) tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 31416/nginx
192.168.10.13 | success | rc=0 | (stdout) tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 30096/nginx
PS:ansible web -i /root/ansible/hosts 调用/root/ansible/hosts主机文件中的web组
