playbook部署nginx 

定义playbook的主机组

说明：

1、playbook的主机组和ansible的主机组不一样，

2、playbook的主机组文件必须要和playbook文件在同一个目录下否则会报如下错误：

[root@test1 profile]# ansible-playbook -i hosts deploy_flanneld.yaml --list-hosts
 [WARNING]: Unable to parse /k8s/profile/hosts as an inventory source

 
3、执行playbook必须要在plyaybook文件所在目录下执行，否则报错；跟带不带绝对路径没有关系，必须保证在同一个目录

4、执行playbook的任何相关操作都要在plyaybook文件所在目录下执行，否则报错；跟带不带绝对路径没有关系，必须保证在同一个目录


cat >/k8s/profile/hosts <<EOF
[webservers]
192.168.0.91
192.168.0.92
EOF


playbook文件

cat > /k8s/profile/deploy_nginx.yaml <<EOF
---
- hosts: webservers
  become: yes
  become_method: sudo
  vars:
    worker_processes: 4
    worker_connections: 768
    max_open_files: 65506
  tasks:
    - name: install nginx
      command: yum install nginx -y

    - name: copy nginx config file
      template: src=/home/lmx/test_ansible/nginx.conf.j2 dest=/etc/nginx/nginx.conf
      notify: restart nginx

    - name: copy index.html
      template: 
        src: /home/lmx/test_ansible/index.html.j2
        dest: /usr/share/nginx/www/index.html
        mode: 0644
      notify: restart nginx

    - name: see file
      command: ls /root
      notify: restart nginx      

  handlers:
    - name: restart nginx
      service: name=nginx state=restarted
EOF


模板文件

mkdir -p /home/lmx/test_ansible/

cat > /home/lmx/test_ansible/nginx.conf.j2 << EOF
worker_processes {{ worker_processes }};
worker_rlimit_nofile {{ max_open_files }};

events {
    worker_connections {{ worker_connections }};
}

http {
    server {
        listen       80;
        root  /usr/share/nginx/www;
        index index.html index.htm default.html index.php;
        server_name loclhost;
        location / {
            try_files $uri $uri/ =404;
        }
    }
    
}
EOF


cat > /home/lmx/test_ansible/index.html.j2 <<EOF
<html>
  <head>
    <title>welcome to american</title>
  </head>
  <body>
  <h1>nginx, confitured by ansible</h1>
  <p>if you can see this, ansible successfully installed nginx.</p>
  
  <p>{{ ansible_hostname }}</p>
  </body>
</html>
EOF


开始部署:

说明：必须切换到playbook所在文件目录下执行，否则报错

[root@test1 ~]# cd /k8s/profile/
[root@test1 profile]# ansible-playbook deploy_nginx.yaml

 

posted @ 2019-01-17 10:55  effortsing  阅读(385)  评论(0)    收藏  举报