创建roles文件夹,并在文件夹下创建服务文件夹
[root@node1 opt]# mkdir roles
[root@node1 opt]# cd roles/
[root@node1 roles]# mkdir {nginx,uwsgi,redis,mariadb}
[root@node1 roles]# ll
total 0
drwxr-xr-x 2 root root 6 Apr 10 23:00 mariadb
drwxr-xr-x 2 root root 6 Apr 10 23:00 nginx
drwxr-xr-x 2 root root 6 Apr 10 23:00 redis
drwxr-xr-x 2 root root 6 Apr 10 23:00 uwsgi
进入服务目录,创建文件夹
[root@localhost roles]# cd nginx/ [root@localhost nginx]# mkdir tasks #必须要有tasks目录,任务目录
在tasks中创建yml文件,安装nginx
[root@node1 tasks]# cat install.yml - name: installnginx yum: name=nginx
创建copyfile.yml,用来复制文件
[root@node1 tasks]# cat copyfile.yml - name: copyfile template: dest=/etc/nginx/nginx.conf src=nginx.conf
创建启动文件
[root@node1 tasks]# cat start.yml - name: start service: name=nginx state=started
将三个目录关联起来,创建main.yml文件
[root@node1 tasks]# cat main.yml - import_tasks: install.yml #导入文件,注意顺序 - import_tasks: copyfile.yml - import_tasks: start.yml
在服务目录中创建templates,要与tasks目录同级
[root@node1 nginx]# mkdir templates [root@node1 nginx]# ll total 0 drwxr-xr-x 2 root root 74 Apr 10 23:15 tasks drwxr-xr-x 2 root root 6 Apr 10 23:18 templates
将nginx.conf文件copy到templates目录下
[root@node1 nginx]# cd templates/
[root@node1 templates]# cp /etc/nginx/nginx.conf .
更改配置文件
查看CPU的个数
[root@node1 opt]# ansible localhost -m setup -a "filter=*vcpus*"
localhost | SUCCESS => {
"ansible_facts": {
"ansible_processor_vcpus": 1 #cpu的个数
},
"changed": false
}
在与roles同级的目录下创建启动文件
[root@node1 data]# cat nginx.yml - hosts: web remote_user: root roles: - nginx
检查语法并执行
[root@node1 data]# ansible-playbook --syntax-check nginx.yml [root@node1 data]# ansible-playbook nginx.yml
创建handlers,设置触发任务
[root@node1 nginx]# ll total 0 drwxr-xr-x 2 root root 21 Apr 10 23:55 handlers drwxr-xr-x 2 root root 74 Apr 10 23:15 tasks drwxr-xr-x 2 root root 23 Apr 10 23:37 templates [root@node1 nginx]# mkdir handlers [root@node1 nginx]# cd handlers/ [root@node1 handlers]# vim main.yml [root@node1 handlers]# cat main.yml - name : restart service: name=nginx state=restarted
更改nginx的copyfile.yml文件
[root@node1 handlers]# cd ../ [root@node1 nginx]# cd tasks/ [root@node1 tasks]# cat copyfile.yml - name: copyfile template: dest=/etc/nginx/nginx.conf src=nginx.conf tags: copy notify: restart
执行nginx.yml文件
如果机器的版本不一致,既有centos7也有centos6
copy并更改nginx.conf文件
[root@localhost templates]# cat centos6.conf
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx; #启动用户
worker_processes {{ansible_processor_vcpus}}; #默认工作进程,一般设置为CPU的个数或CPU个数的两倍
error_log /var/log/nginx/error.log;
pid /var/log/nginx/nginx.pid; #centos6 中nginx.pid默认目录
# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 102400; #每一个进程可以提供多少个线程
}
http {
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;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
server {
listen 80; #centos6更改,只写端口
server_name localhosts; #centos6更改server_name
root /usr/share/nginx/html;
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
location / {
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
# Settings for a TLS enabled server.
#
# server {
# listen 443 ssl http2 default_server;
# listen [::]:443 ssl http2 default_server;
# server_name _;
# root /usr/share/nginx/html;
#
# ssl_certificate "/etc/pki/nginx/server.crt";
# ssl_certificate_key "/etc/pki/nginx/private/server.key";
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 10m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
#
# # Load configuration files for the default server block.
# include /etc/nginx/default.d/*.conf;
#
# location / {
# }
#
# error_page 404 /404.html;
# location = /40x.html {
# }
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# }
# }
}
centos6.conf
更改copyfile.yml
[root@localhost tasks]# cat copyfile.yml - name: copyfile template: dest=/etc/nginx/nginx.conf src=nginx.conf tags: copy notify: restart when: ansible_distribution_major_version=="7" - name: centos6 template: dest=/etc/nginx/nginx.conf src=centos6.conf tags: centos6 notify: restart when: ansible_distribution_major_version=="6"
执行nginx.yml文件
[root@node1 templates]# ansible-playbook -t copy,contos6 nginx.yml
查看版本号
[root@node1 opt]# ansible localhost -m setup -a "filter=*ansible_distribution_major_version*"
localhost | SUCCESS => {
"ansible_facts": {
"ansible_distribution_major_version": "7" #版本号
},
"changed": false
}
原文地址：https://www.cnblogs.com/wanglan/p/10706358.html
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