1. ansible-handlers在变更执行操作
1) 编写playbook的handlers的配置文件
1 [root@test-1 bin]# vim /ansible/nginx/bin/handlers.yaml 2 [root@test-1 bin]# cat /ansible/nginx/bin/handlers.yaml 3 --- 4 - hosts: web1 5 remote_user: root 6 gather_facts: no 7 8 tasks: 9 - name: Copy nginx config file 10 copy: 11 src: /ansible/nginx/conf/site.conf 12 dest: /etc/nginx/conf.d/site.conf 13 notify: 14 - reload nginx #这里是指定要执行那个的handlers，对应下面的name，我们可以定义多个handlers，通过handlers name来识别不同的handlers 15 16 handlers: #这里表示如果拷贝文件成功，就使用service服务重启nginx 17 - name: reload nginx 18 service: 19 name: nginx 20 state: reloaded
2) 查看原来服务器的nginx配置文件
1 [root@test-1 bin]# ansible web1 -a "cat /etc/nginx/conf.d/site.conf" 2 3 192.168.200.133 | CHANGED | rc=0 >> 4 server { 5 listen 80; 6 server_name www.ctnrs.com; 7 location / { 8 root /var/www/html; 9 index index.html; 10 } 11 } 12 13 192.168.200.132 | CHANGED | rc=0 >> 14 server { 15 listen 80; 16 server_name www.ctnrs.com; 17 location / { 18 root /var/www/html; 19 index index.html; 20 } 21 }
3) 修改nginx配置文件
1 [root@test-1 bin]# vim /ansible/nginx/conf/site.conf 2 [root@test-1 bin]# cat /ansible/nginx/conf/site.conf 3 server { 4 listen 80; 5 server_name test.scajy.cn; 6 location / { 7 root /var/www/html; 8 index index.html; 9 } 10 }
2. 验证handlers文件是否正确
1) 验证编写handlers文件
1 [root@test-1 bin]# ansible-playbook --syntax-check handlers.yaml 2 3 4 playbook: handlers.yaml
3. 执行handlers文件
1) 执行文件
1 [root@test-1 bin]# ansible-playbook handlers.yaml 2 [WARNING]: log file at /var/log/ansible/ansible.log is not writeable and we cannot create it, aborting 3 4 5 PLAY [web1] ****************************************************************************************************************************************************************************************************************************************************************** 6 7 TASK [Copy nginx config file] ************************************************************************************************************************************************************************************************************************************************ 8 changed: [192.168.200.133] 9 changed: [192.168.200.132] 10 11 RUNNING HANDLER [reload nginx] *********************************************************************************************************************************************************************************************************************************************** 12 changed: [192.168.200.132] 13 changed: [192.168.200.133] 14 15 PLAY RECAP ******************************************************************************************************************************************************************************************************************************************************************* 16 192.168.200.132 : ok=2 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 17 192.168.200.133 : ok=2 changed=2 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
4. 验证是否成功执行了
1)验证文件是否改变
1 [root@test-1 bin]# ansible web1 -a "cat /etc/nginx/conf.d/site.conf" 2
3 4 192.168.200.133 | CHANGED | rc=0 >> 5 server { 6 listen 80; 7 server_name test.scajy.cn; 8 location / { 9 root /var/www/html; 10 index index.html; 11 } 12 } 13 14 192.168.200.132 | CHANGED | rc=0 >> 15 server { 16 listen 80; 17 server_name test.scajy.cn; 18 location / { 19 root /var/www/html; 20 index index.html; 21 } 22 }
2) 验证nginx是否正常运行
1 [root@test-1 bin]# ansible web1 -m shell -a "netstat -lntup|grep 80" 2 [WARNING]: log file at /var/log/ansible/ansible.log is not writeable and we cannot create it, aborting 3 4 192.168.200.133 | CHANGED | rc=0 >> 5 tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 17881/nginx: master 6 7 192.168.200.132 | CHANGED | rc=0 >> 8 tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 17792/nginx: master 9 10 [root@test-1 bin]# ansible web1 -m shell -a "ps -ef |grep nginx" 11 [WARNING]: log file at /var/log/ansible/ansible.log is not writeable and we cannot create it, aborting 12 13 192.168.200.132 | CHANGED | rc=0 >> 14 root 17792 1 0 15:04 ? 00:00:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf 15 nginx 18524 17792 0 20:41 ? 00:00:00 nginx: worker process 16 root 18735 18730 58 20:51 pts/1 00:00:00 /bin/sh -c ps -ef |grep nginx 17 root 18737 18735 0 20:51 pts/1 00:00:00 grep nginx 18 19 192.168.200.133 | CHANGED | rc=0 >> 20 root 17881 1 0 15:04 ? 00:00:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf 21 nginx 18613 17881 0 20:41 ? 00:00:00 nginx: worker process 22 root 18825 18820 62 20:51 pts/1 00:00:00 /bin/sh -c ps -ef |grep nginx 23 root 18827 18825 0 20:51 pts/1 00:00:00 grep nginx
3) curl模拟浏览器请求
1 [root@test-1 bin]# curl 192.168.200.133 -H "host:test.scajy.cn" 2 hello Ansible 3 [root@test-1 bin]# curl 192.168.200.132 -H "host:test.scajy.cn" 4 hello Ansible