tasks:\r\n - name: run this command and ignore the result\r\n shell: \/usr\/bin\/somecommand\r\n ignore_errors: True<\/code><\/pre>\n\u4f60\u53ef\u4ee5\u7528\u4e0a\u9762\u7684\u6848\u4f8b\u8fdb\u884c\u6d4b\u8bd5\uff0c\u5f53\u4f60\u5ffd\u7565\u9519\u8bef\u540e\uff0c\u540e\u7eed\u7684task\uff0c\u5df2\u7ecf\u4e0b\u4e00\u4e2aplay\u90fd\u4f1a\u5f97\u5230\u6b63\u5e38\u7684\u6267\u884c<\/p>\n
\u8865\u5145\uff1a
\n1\u3001\u5373\u4fbf\u4f60\u4e0d\u5ffd\u7565\u9519\u8bef\uff0c\u4f60\u4e5f\u8981\u77e5\u9053\u4e00\u70b9\uff0c\u7531\u4e8eplaybook\u7684\u5e42\u7b49\u6027\uff0cplaybook\u53ef\u4ee5\u88ab\u53cd\u590d\u6267\u884c\uff0c\u6240\u4ee5\u5373\u4f7f\u53d1\u751f\u4e86\u9519\u8bef\uff0c\u5728\u4fee\u590d\u9519\u8bef\u540e\uff0c\u518d\u6267\u884c\u4e00\u6b21\u4e5f\u4e0d\u4f1a\u6709\u95ee\u9898
\n2\u3001ignore_errors: True \u901a\u5e38\u4f1a\u8ddf\u4e0a\u4e00\u5c0f\u8282\u4ecb\u7ecd\u7684\u53d8\u91cfregister\u4e00\u8d77\u4f7f\u7528\uff0c\u5728\u5ffd\u7565\u9519\u8bef\u540e\uff0c\u62ff\u5230\u9519\u8bef\u7ed3\u679c\uff0c\u5728\u540e\u7eed\u7684\u903b\u8f91\u4e2d\u8fdb\u884c\u5224\u65ad\u5904\u7406<\/p>\n
- hosts: web_group\r\n tasks:\r\n - name: Check Httpd Server\r\n #\u4f7f\u7528\u547d\u4ee4\u68c0\u67e5\u670d\u52a1\u542f\u52a8\u72b6\u6001\u65f6\uff0c\u5982\u679c\u670d\u52a1\u6ca1\u6709\u542f\u52a8\u5219\u4f1a\u5f97\u5230\u9519\u8bef\u7ed3\u679c\uff0c\u5267\u672c\u4f1a\u505c\u6b62\u8fd0\u884c\r\n command: systemctl is-active httpd\r\n #\u914d\u7f6e\u5ffd\u7565\u9519\u8bef\u53ef\u4ee5\u7ee7\u7eed\u6267\u884c\u5267\u672c\r\n ignore_errors: yes\r\n register: check_httpd\r\n\r\n - name: debug outprint\r\n debug: \r\n msg: \"{{ check_httpd }}\"\r\n\r\n - name: Httpd Restart\r\n service:\r\n name: httpd\r\n state: restarted\r\n when: check_httpd.rc == 0<\/code><\/pre>\n\u4e94\u3001Handler section<\/h1>\n5.1\u3001\u4ec0\u4e48\u662fhandlers?<\/h2>\n
handler\u4e5f\u662f\u4e00\u79cdtask\uff0c\u53ea\u4e0d\u8fc7\u8be5task\u9ed8\u8ba4\u5e76\u4e0d\u4f1a\u6267\u884c\uff0c\u53ea\u6709\u5728\u88ab\u901a\u77e5\u65f6\u624d\u4f1a\u6267\u884c\uff0c\u6240\u4ee5\u53c8\u53ef\u79f0\u4e4b\u4e3a\u89e6\u53d1\u5668<\/p>\n
\u4ec0\u4e48\u65f6\u5019handler\u6536\u5230\u901a\u77e5\u5462\uff1f
\n\u53ea\u6709\u5728 playbook \u4e2d\u7684\u67d0\u4e2a\u4efb\u52a1\u6539\u53d8\u4e86\u7cfb\u7edf\u72b6\u6001\u540e\uff0c\u624d\u4f1a\u89e6\u53d1\u5176notify\u6307\u5b9a\u7684 handler<\/p>\n
\"\u7cfb\u7edf\u72b6\u6001\u6539\u53d8\"\u662f\u6307\u4efb\u52a1\u6267\u884c\u7684\u7ed3\u679c\u5bfc\u81f4\u4e86\u5b9e\u9645\u7684\u6539\u53d8\uff08\u5982\u914d\u7f6e\u6539\u53d8\u3001\u6587\u4ef6\u5185\u5bb9\u53d8\u5316\u3001\u670d\u52a1\u72b6\u6001\u53d8\u5316\uff09\uff0c\u662f\u901a\u8fc7\u6bd4\u8f83\u6a21\u5757\u6267\u884c\u524d\u540e\u7684\u72b6\u6001\u6765\u5224\u65ad\u7684\r\n\u5728\u6267\u884c\u4efb\u52a1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u5982\u679c\u6a21\u5757\u53d1\u73b0\u5b83\u7684\u64cd\u4f5c\u5bfc\u81f4\u4e86\u72b6\u6001\u7684\u53d8\u5316\uff08\u4f8b\u5982\uff0c\u6267\u884c\u524d\u548c\u6267\u884c\u540e\u7684\u72b6\u6001\u4e0d\u540c\uff09\uff0c\r\n\u5219 Ansible \u4f1a\u5c06\u8fd9\u4e2a\u4efb\u52a1\u6807\u8bb0\u4e3a \"changed\"\uff0c\u5982\u679c\u4ec5\u4ec5\u662f\u67e5\u770b\u6216\u83b7\u53d6\u72b6\u6001\u4fe1\u606f\u7684\u64cd\u4f5c\uff0c\u5219\u4e0d\u4f1a\u88ab\u89c6\u4e3a \"changed\"\u3002<\/code><\/pre>\n\u7b80\u5355\u793a\u4f8b<\/p>\n
[root@m01 project]# cat nginx.yml \r\n- hosts: nginx\r\n tasks:\r\n - name: Config Nginx Server\r\n copy:\r\n src: \/etc\/nginx\/nginx.conf\r\n dest: \/etc\/nginx\/\r\n notify: restart_nginx # \u540d\u5b57\u4e0ehandlers\u4e2d\u5b9a\u4e49\u7684\u67d0\u4e2aname\u4e00\u81f4\r\n\r\n handlers:\r\n - name: restart_nginx\r\n systemd:\r\n name: nginx\r\n state: restarted<\/code><\/pre>\n5.2\u3001\u4ec0\u4e48\u573a\u666f\u7528handler<\/h2>\n
\u4e3b\u8981\u5728\u4ee5\u4e0b\u573a\u666f\u4e2d\u4f7f\u7528\uff1a
\n1\u3001\u914d\u7f6e\u6539\u53d8\u540e\u9700\u8981\u91cd\u542f\u670d\u52a1<\/span>\uff1a\u8fd9\u53ef\u80fd\u662f\u4f7f\u7528 handler \u7684\u6700\u5e38\u89c1\u573a\u666f\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u4fee\u6539\u4e86\u67d0\u4e2a\u670d\u52a1\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u91cd\u542f\u8be5\u670d\u52a1\u4ee5\u4f7f\u65b0\u7684\u914d\u7f6e\u751f\u6548\u3002\u4f60\u53ef\u4ee5\u5728\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u7684\u4efb\u52a1\u4e2d\u4f7f\u7528 notify \u6307\u4ee4\u89e6\u53d1\u4e00\u4e2a handler\uff0c\u8fd9\u4e2a handler \u7684\u4efb\u52a1\u662f\u91cd\u542f\u76f8\u5e94\u7684\u670d\u52a1\u3002
\n2\u3001\u5728\u591a\u4e2a\u4efb\u52a1\u5b8c\u6210\u540e\u6267\u884c\u4e00\u6b21\u64cd\u4f5c\uff1a\u5982\u679c\u4f60\u6709\u591a\u4e2a\u4efb\u52a1\u90fd\u53ef\u80fd\u89e6\u53d1\u76f8\u540c\u7684\u64cd\u4f5c\uff0c\u4f46\u4f60\u53ea\u5e0c\u671b\u5728\u6240\u6709\u4efb\u52a1\u5b8c\u6210\u540e\u6267\u884c\u4e00\u6b21\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u4f7f\u7528 handler<\/span>\u3002\u65e0\u8bba\u6709\u591a\u5c11\u4efb\u52a1\u901a\u77e5\u4e86\u540c\u4e00\u5904\u7406\u5668\uff0c\u8be5\u5904\u7406\u5668\u53ea\u4f1a\u5728\u6240\u6709\u4efb\u52a1\u5b8c\u6210\u4e4b\u540e\u6267\u884c\u4e00\u6b21\u3002
\n3\u3001\u5728\u957f\u671f\u8fd0\u884c\u7684\u4efb\u52a1\u5b8c\u6210\u540e\u6267\u884c\u64cd\u4f5c\uff1a\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u9700\u8981\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4efb\u52a1\uff0c\u5f53\u8fd9\u4e2a\u4efb\u52a1\u5b8c\u6210\u540e\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u6267\u884c\u4e00\u4e9b\u6e05\u7406\u5de5\u4f5c<\/span>\uff0c\u4f8b\u5982\u5220\u9664\u4e34\u65f6\u6587\u4ef6\u3002\u4f60\u53ef\u4ee5\u5c06\u5220\u9664\u4e34\u65f6\u6587\u4ef6\u7684\u4efb\u52a1\u4f5c\u4e3a\u4e00\u4e2a handler\uff0c\u5f53\u957f\u671f\u8fd0\u884c\u7684\u4efb\u52a1\u5b8c\u6210\u65f6\u89e6\u53d1\u8fd9\u4e2a handler\u3002
\n\u8fd9\u4e5f\u662f handler \u7684\u4e00\u4e2a\u5173\u952e\u7279\u5f81\uff1a\u65e0\u8bba\u5b83\u88ab\u901a\u77e5\u591a\u5c11\u6b21\uff0c\u6bcf\u6b21 playbook \u8fd0\u884c\uff0c\u6bcf\u4e2a handler \u53ea\u4f1a\u6267\u884c\u4e00\u6b21\uff0c\u5e76\u4e14\u53ea\u6709\u5728\u6240\u6709\u4efb\u52a1\u90fd\u6267\u884c\u5b8c\u6bd5\u540e\uff0chandler \u624d\u4f1a\u6267\u884c\u3002<\/span><\/p>\n5.3\u3001\u914d\u7f6e\u89e6\u53d1\u5668<\/h2>\n
\u6bcf\u4e2aplay\u7684tasks\u5168\u90e8\u6267\u884c\u5b8c\u540e\u624d\u4f1a\u89e6\u53d11\u6b21handler\u7684\u6267\u884c\uff0c\u7136\u540e\u6267\u884c\u4e0b\u4e00\u4e2aplay<\/p>\n
[root@lb workspace]# cat test.yaml \r\n#\u7b2c\u4e00\u4e2aplay\r\n- hosts: group5\r\n tasks:\r\n - name: \u547d\u4ee4111111\r\n copy:\r\n src: \/etc\/hosts\r\n dest: \/tmp\/1.txt\r\n notify: say_ok\r\n\r\n - name: \u547d\u4ee4222222\r\n shell: \"sleep 5\"\r\n notify: say_ok\r\n handlers:\r\n - name: say_ok\r\n shell: \"echo ok >> \/tmp\/play1.log\"\r\n\r\n#\u7b2c\u4e8c\u4e2aplay\r\n- hosts: group5\r\n tasks:\r\n - name: \u547d\u4ee44444444\r\n copy:\r\n src: \/etc\/hosts\r\n dest: \/tmp\/2.txt\r\n notify: say_hello\r\n\r\n - name: \u547d\u4ee45555555\r\n shell: \"sleep 5\"\r\n notify: say_hello\r\n handlers:\r\n - name: say_hello\r\n shell: \"echo hello >> \/tmp\/play2.log\"\r\n<\/code><\/pre>\n5.4\u3001\u89e6\u53d1\u5668\u4f7f\u7528\u6ce8\u610f\u4e8b\u9879<\/h2>\n1.\u65e0\u8bba\u591a\u5c11\u4e2atask\u901a\u77e5\u4e86\u76f8\u540c\u7684handlers\uff0chandlers\u4ec5\u4f1a\u5728\u6240\u6709tasks\u7ed3\u675f\u540e\u8fd0\u884c\u4e00\u6b21<\/span>\u3002\r\n\r\n2.Handlers\u53ea\u6709\u5728\u5176\u6240\u5728\u7684\u4efb\u52a1\u88ab\u6267\u884c\u65f6\uff0c\u624d\u4f1a\u88ab\u8fd0\u884c\uff1b\u5982\u679c\u4e00\u4e2a\u4efb\u52a1\u4e2d\u5b9a\u4e49\u4e86notify\u8c03\u7528Handlers\uff0c\u4f46\u662f\u7531\u4e8e\u6761\u4ef6\u5224\u65ad\u7b49\u539f\u56e0\uff0c\u8be5\u4efb\u52a1\u672a\u88ab\u6267\u884c\uff0c\u90a3\u4e48Handlers\u540c\u6837\u4e0d\u4f1a\u88ab\u6267\u884c\u3002\r\n\r\n3.Handlers\u53ea\u4f1a\u5728\u6bcf\u4e00\u4e2aplay\u7684\u672b\u5c3e\u8fd0\u884c\u4e00\u6b21<\/span>\uff1b\u5982\u679c\u60f3\u5728\u4e00\u4e2aplaybook\u4e2d\u95f4\u8fd0\u884cHandlers\uff0c\u5219\u9700\u8981\u4f7f\u7528meta\u6a21\u5757\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff1a -meta: flush_handlers\u3002\r\n\r\n4.\u5982\u679c\u4e00\u4e2aplay\u5728\u8fd0\u884c\u5230\u8c03\u7528Handlers\u7684\u8bed\u53e5\u4e4b\u524d\u5931\u8d25\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e2aHandlers\u5c06\u4e0d\u4f1a\u88ab\u6267\u884c\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528meta\u6a21\u5757\u7684--force-handlers\u9009\u9879\u6765\u5f3a\u5236\u6267\u884cHandlers\uff0c\u5373\u4f7fHandlers\u6240\u5728\u7684play\u4e2d\u9014\u8fd0\u884c\u5931\u8d25\u4e5f\u80fd\u6267\u884c\u3002\r\n\r\n5.\u4e0d\u80fd\u4f7f\u7528handlers\u66ff\u4ee3tasks<\/code><\/pre>\n5.5\u3001\u5177\u4f53\u5e94\u7528\u793a\u4f8b<\/h2>\n
\u5e94\u7528\u793a\u4f8b1<\/p>\n
[root@m01 project]# cat php.yml \r\n- hosts: web_group\r\n tasks:\r\n - name: Tar php Package\r\n unarchive:\r\n src: \/project\/package\/php.tar.gz\r\n dest: \/tmp\/\r\n\r\n - name: Check php Install Status\r\n shell: \"rpm -qa | grep php | wc -l\"\r\n register: get_php_instll_status\r\n\r\n - name: Install php Server\r\n shell: \"yum localinstall -y \/tmp\/*.rpm\"\r\n when: get_php_instll_status.stdout_lines == 0\r\n\r\n - name: Config php Server\r\n copy:\r\n src: \"{{ item.src }}\"\r\n dest: \"{{ item.dest }}\"\r\n with_items:\r\n - { src: \"\/project\/conf\/php.ini\", dest: \"\/etc\" }\r\n - { src: \"\/project\/conf\/www.conf\", dest: \"\/etc\/php-fpm.d\/\" }\r\n notify: restart_php\r\n\r\n - name: Start php Server\r\n systemd:\r\n name: php-fpm\r\n state: started\r\n\r\n handlers:\r\n - name: restart_php\r\n systemd:\r\n name: php-fpm\r\n state: restarted<\/code><\/pre>\n\u5e94\u7528\u793a\u4f8b2<\/p>\n
tasks:\r\n - name: template configuration file\r\n template: \r\n src: template.j2 \r\n dest: \/etc\/foo.conf\r\n notify:\r\n - restart memcached\r\n - restart apache\r\n - name: start memcached\r\n service:\r\n name: memcached\r\n state: started\r\n - name: start apache\r\n service\r\n name: httpd\r\n state: started\r\nhandlers:\r\n - name: restart memcached\r\n service:\r\n name: memcached\r\n state: restarted\r\n - name: restart apache\r\n service:\r\n name: httpd\r\n state: restarted\r\n<\/code><\/pre>\n5.6 \u5f3a\u5236handler\u6267\u884c<\/h2>\n
\u5982\u679ctasks\u4e0b\u67d0\u4e2atask\u51fa\u9519\u4e86\uff0c\u5e76\u4e14\u4f60\u4e5f\u6ca1\u7528\u7528||\/bin\/true\u6216\u8005ignore_errors\u7684\u65b9\u5f0f\u628a\u9519\u8bef\u5ffd\u7565\u6389\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5d29\u6e83\uff0chandler\u81ea\u7136\u4e0d\u4f1a\u6267\u884c\uff0c
\n\u60f3\u8981\u5f3a\u5236\u6267\u884c\u9700\u8981\u8bbe\u7f6e\uff1aforce_handlers: yes<\/p>\n
[root@lb workspace]# cat 1.yaml \r\n- hosts: group1\r\n name: \"\u6211\u662fplaybook\u4e0b\u7684\u7b2c\u4e00\u4e2aplay\"\r\n force_handlers: True\r\n tasks:\r\n - name: \u547d\u4ee41\r\n shell: \"echo 111 > \/tmp\/1.txt\"\r\n notify: test\r\n\r\n - name: \u547d\u4ee42\u4f1a\u51fa\u9519\r\n shell: \"cat \/xxxxx > \/tmp\/2.txt\"\r\n # ignore_errors: True\r\n\r\n - name: \u547d\u4ee43\r\n shell: \"echo 333 > \/tmp\/3.txt\"\r\n\r\n handlers:\r\n - name: test\r\n shell: \"echo test > \/tmp\/ttttttt.txt\"\r\n- hosts: group5\r\n name: \"\u6211\u662fplaybook\u4e0b\u7684\u7b2c\u4e8c\u4e2aplay\"\r\n tasks:\r\n - name: \u547d\u4ee44\r\n shell: \"echo 444 > \/tmp\/4.txt\"\r\n\r\n - name: \u547d\u4ee45\u4f1a\u51fa\u9519\r\n shell: \"cat \/xxxxx > \/tmp\/5.txt\"\r\n\r\n - name: \u547d\u4ee46\r\n shell: \"echo 666 > \/tmp\/6.txt\"\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001plabook\u7ed3\u6784\u8bf4\u660e \u4e00\u4e2aplaybook\u5c31\u597d\u6bd4\u662f\u4f60\u7f16\u6392\u7684\u4e00\u573a\u5927\u620f \u8fd9\u573a\u5927\u620f\u7531\u4e8e\u5f88\u591a\u5c0f\u7247\u6bb5\u6784\u6210\uff0c\u4e00\u4e2a\u7247\u6bb5 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[56],"tags":[60,21,19,58,57,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/357"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=357"}],"version-history":[{"count":36,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/357\/revisions"}],"predecessor-version":[{"id":11267,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/357\/revisions\/11267"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"file\"](\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/image-1712378727207.png\")
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