Ansible Roles角色

Roles小技巧:

1.创建roles目录结构，手动或使用ansible-galaxy init test roles

2.编写roles的功能，也就是tasks。 nginx rsyncd memcached

3.最后playbook引用roles编写好的tasks



mkdir /root/roles/nginx/{tasks,templates,handlers}

##tasks

[root@manager ~]# cat /root/roles/nginx/tasks/main.yml

- name: Install Nginx Server

  yum:

    name: nginx

    state: present

- name: Configure Nginx Server

  template:

    src: nginx.conf.j2

    dest: /etc/nginx/nginx.conf

  notify: Restart Nginx Server

- name: Systemd Nginx Server

  systemd:

    name: nginx

    state: started

    enabled: yes

##template

[root@manager roles]# cat /root/roles/nginx/templates/nginx.conf.j2

user www;

worker_processes  {{ ansible_processor_vcpus }};

error_log  /var/log/nginx/error.log notice;

pid        /var/run/nginx.pid;

events {

    worker_connections  {{ ansible_processor_vcpus * 1024 }};

}

http {

    include       /etc/nginx/mime.types;

    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '

                      '$status $body_bytes_sent "$http_referer" '

                      '"$http_user_agent" "$http_x_forwarded_for"';

	access_log /var/log/nginx/access.log main;

    sendfile        on;

    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;

}

###handlers

[root@manager ~]# cat /root/roles/nginx/handlers/main.yml

- name: Restart Nginx Server

  systemd:

    name: nginx

    state: restarted

#调用playbook

[root@manager roles]# cat /root/roles/site.yml

- hosts: webservers

  roles:

    - nginx

##hosts ansible.cfg  自备

memcached roles

#安装

#配置

#启动

#1.创建roles的目录结构

[root@manager roles]# mkdir memcached/{tasks,templates,handlers} -p

#2.编写对应的tasks  (1.安装  2配置(templates)  3.启动  4.重启(handlers) )

[root@manager roles]# cat memcached/tasks/main.yml

- name: Installed Memecached Server

  yum:

    name: memcached

    state: present

- name: Configure Memcached Server

  template:

    src: memcached.j2

    dest: /etc/sysconfig/memcached

  notify: Restart Memcached Server

- name: System Memcached Server

  systemd:

    name: memcached

    state: started

    enabled: yes

[root@manager roles]# cat memcached/templates/memcached.j2

PORT="11211"

USER="memcached"

MAXCONN="1024"

CACHESIZE="{{ ansible_memtotal_mb //2 }}"

OPTIONS=""

[root@manager roles]# cat memcached/handlers/main.yml

- name: Restart Memcached Server

  systemd:

    name: memcached

    state: restarted

#3.playbook调用roles

[root@manager roles]# cat site.yml

- hosts: webservers

  roles:

    - { role: nginx, tags: web }

    - { role: memcached, tags: cache }

NFS服务



#1.创建项目目录结构   --->

[root@manager roles]# mkdir nfs/{tasks,templates,handlers} -p

#2.编写task任务

#3.playbook调用roles项目

roles:
- 1.nginxProxy+keepalived 10.0.0.5 10.0.0.6 10.0.0.3
- 2.nginx静态网站 172.16.1.7 172.16.1.8

巴特西

Ansible Roles角色

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