{"id":42357,"date":"2023-09-21T10:47:47","date_gmt":"2024-01-04T17:59:30","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90ansible%e3%80%91%e5%a6%82%e6%9e%9c%e6%9c%89%e4%bb%bb%e4%bd%95%e4%b8%80%e5%8f%b0%e4%b8%bb%e6%9c%ba%ef%bc%88ansible_play_hosts%ef%bc%89%e5%a4%b1%e8%b4%a5%ef%bc%8c%e6%88%91%e5%b8%8c%e6%9c%9b\/"},"modified":"2024-05-04T00:52:10","modified_gmt":"2024-05-03T16:52:10","slug":"%e3%80%90ansible%e3%80%91%e5%a6%82%e6%9e%9c%e6%9c%89%e4%bb%bb%e4%bd%95%e4%b8%80%e5%8f%b0%e4%b8%bb%e6%9c%ba%ef%bc%88ansible_play_hosts%ef%bc%89%e5%a4%b1%e8%b4%a5%ef%bc%8c%e6%88%91%e5%b8%8c%e6%9c%9b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90ansible%e3%80%91%e5%a6%82%e6%9e%9c%e6%9c%89%e4%bb%bb%e4%bd%95%e4%b8%80%e5%8f%b0%e4%b8%bb%e6%9c%ba%ef%bc%88ansible_play_hosts%ef%bc%89%e5%a4%b1%e8%b4%a5%ef%bc%8c%e6%88%91%e5%b8%8c%e6%9c%9b\/","title":{"rendered":"\u3010Ansible\u3011\u5982\u679c\u6709\u4efb\u4f55\u4e00\u53f0\u4e3b\u673a\uff08ansible_play_hosts\uff09\u5931\u8d25\uff0c\u6211\u5e0c\u671b\u505c\u6b62playbook\u6267\u884c"},"content":{"rendered":"<h4>\u9996\u5148<\/h4>\n<p>ansible\u7684\u7248\u672c\u662f2.9.1.<\/p>\n<p>\u5728Ansible\u4e2d\uff0c\u662f\u5426\u6709\u4ee5\u4e0b\u529f\u80fd\uff1f<br \/>\n\uff081\uff09\u53ea\u6709\u6240\u6709\u4e3b\u673a\u90fd\u6ca1\u6709\u5931\u8d25\uff0c\u624d\u80fd\u7ee7\u7eed\u6267\u884c\u4e0b\u4e00\u4e2a\u4efb\u52a1<br \/>\n\uff082\uff09\u60f3\u8981\u786e\u5b9a\u5df2\u6267\u884c\u5230\u6700\u540e\u7684\u4efb\u52a1\u6709\u591a\u5c11\u53f0\u4e3b\u673a<br \/>\n\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528ansible_play_hosts\u548cansible_play_hosts_all\u53d8\u91cf\u6765\u6210\u529f\u5b9e\u73b0\u3002<br \/>\n\u6839\u636eAnsible\u6587\u6863\uff08\u7279\u6b8a\u53d8\u91cf\uff09\uff0c\u4f3c\u4e4e\u5982\u4e0b\u6240\u793a\uff1a<br \/>\nansible_play_hosts_all\uff1a\u6700\u521d\u8981\u6267\u884c\u7684\u4e3b\u673a\u5217\u8868<br \/>\nansible_play_hosts\uff1a\u5f53\u524d\u6b63\u5728\u6267\u884c\u7684\u4e3b\u673a\u5217\u8868<\/p>\n<h4>\u73a9\u6cd5\u4ecb\u7ecd1-\u786e\u8ba4ansible_play_hosts\/ansible_play_hosts_all\u7684\u5185\u5bb9\u3002<\/h4>\n<p>\u4f5c\u4e3a\u4f8b\u5b50\uff0c\u6211\u4eec\u5c06\u5728\u4e24\u53f0\u8bbe\u5907junos_router_1\u548cjunos_router_2\u4e0a\u6267\u884cplaybook\u3002<br \/>\n\u5728\u7b2c\u4e8c\u4e2a\u4efb\u52a1\u4e2d\uff0c\u6211\u4eec\u5c06\u53ea\u5c06junos_router_2\u5f3a\u5236\u8bbe\u4e3afailed\uff0c\u5e76\u89c2\u5bdfansible_play_hosts\/ansible_play_hosts_all\u7684\u53d8\u5316\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">---<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">play hosts TEST<\/span>\r\n  <span class=\"na\">hosts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">all<\/span>\r\n  <span class=\"na\">connection<\/span><span class=\"pi\">:<\/span> <span class=\"s\">local<\/span>\r\n  <span class=\"na\">gather_facts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">no<\/span>\r\n  <span class=\"na\">vars<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">ansible_python_interpreter<\/span><span class=\"pi\">:<\/span> <span class=\"s\">\/usr\/bin\/python3<\/span>\r\n  <span class=\"na\">tasks<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">debug1'<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">&gt;-<\/span>\r\n             <span class=\"s\">ansible_play_hosts_all : {{ ansible_play_hosts_all }},<\/span>\r\n             <span class=\"s\">ansible_play_hosts : {{ ansible_play_hosts }}<\/span>\r\n\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">fail<\/span> <span class=\"s\">router_2'<\/span>\r\n      <span class=\"na\">fail<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">router_2<\/span> <span class=\"s\">is<\/span> <span class=\"s\">failed'<\/span>  <span class=\"c1\"># junos_router_2\u3092\u5f37\u5236\u7684\u306b\u30a8\u30e9\u30fc\u306b\u3059\u308b<\/span>\r\n      <span class=\"na\">when<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">('router_2' in inventory_hostname)<\/span>\r\n\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">debug2'<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">&gt;-<\/span>\r\n             <span class=\"s\">ansible_play_hosts_all : {{ ansible_play_hosts_all }},<\/span>\r\n             <span class=\"s\">ansible_play_hosts : {{ ansible_play_hosts }}<\/span>\r\n<\/code><\/pre>\n<h4>\u6267\u884c\u7ed3\u679c1<\/h4>\n<p>\u901a\u8fc7\u5c06junos_router_2\u5728\u7b2c\u4e8c\u4e2a\u4efb\u52a1\u4e2d\u5f3a\u5236\u8bbe\u4e3afailed\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5728\u4e0b\u4e00\u4e2a\u4efb\u52a1\u4e2d\uff0cansible_play_hosts\u53ea\u5305\u542bjunos_router_1\u3002\u8bf7\u6ce8\u610f\uff0c\u8f93\u51fa\u7ed3\u679c\u5e26\u6709u&#8221;\uff08Unicode\u8f6c\u4e49\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>PLAY [play hosts TEST] *************************************************************************************************************************************************\r\n\r\nTASK [debug1] **********************************************************************************************************************************************************\r\nok: [junos_router_2] =&gt; {\r\n    \"msg\": \"ansible_play_hosts_all : [u'junos_router_1', u'junos_router_2'], ansible_play_hosts : [u'junos_router_1', u'junos_router_2']\"\r\n}\r\nok: [junos_router_1] =&gt; {\r\n    \"msg\": \"ansible_play_hosts_all : [u'junos_router_1', u'junos_router_2'], ansible_play_hosts : [u'junos_router_1', u'junos_router_2']\"  \r\n}\r\n\r\nTASK [fail router_2] ***************************************************************************************************************************************************\r\nskipping: [junos_router_1]\r\nfatal: [junos_router_2]: FAILED! =&gt; {\"changed\": false, \"msg\": \"router_2 is failed\"}\r\n\r\nTASK [debug2] **********************************************************************************************************************************************************\r\nok: [junos_router_1] =&gt; {\r\n    \"msg\": \"ansible_play_hosts_all : [u'junos_router_1', u'junos_router_2'], ansible_play_hosts : [u'junos_router_1']\"  \r\n} # ansible_play_hosts\u306e\u5185\u5bb9\u304c\u5909\u5316\r\n\r\nPLAY RECAP *************************************************************************************************************************************************************\r\njunos_router_1             : ok=2    changed=0    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0\r\njunos_router_2             : ok=1    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0\r\n<\/code><\/pre>\n<h4>\u5982\u679c\u5728\u6267\u884cPlaybook\u7684\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u4e00\u6b21\u5931\u8d25\uff0c\u5373\u4f7f\u53ea\u6709\u4e00\u4e2a\u8282\u70b9\u51fa\u73b0\u5931\u8d25\uff0cPlaybook\u4e5f\u4f1a\u63d0\u524d\u7ec8\u6b62\u3002<\/h4>\n<p>ansible_play_hosts\u548cansible_play_hosts_all\u90fd\u662f\u4ee5\u5217\u8868\u5f62\u5f0f\u5b58\u5728\u7684\uff0c\u6240\u4ee5\u4f7f\u7528set_fact\u6765\u83b7\u53d6\u5143\u7d20\u6570\u91cf\uff0c\u5e76\u4e14\u5982\u679c\u5728\u4e3b\u673a\u53d1\u751f\u9519\u8bef\u5e76\u5bfc\u81f4\u5143\u7d20\u6570\u91cf\u4e0d\u540c\uff0c\u5219\u4efb\u52a1\u5c06\u7ec8\u6b62\u6267\u884c\u3002<br \/>\n\u8981\u70b9\uff1a<br \/>\n(1) \u4f7f\u7528set_fact\u6765\u83b7\u53d6\u5217\u8868\u7684\u5143\u7d20\u6570\u91cf<br \/>\n(2) \u5982\u679c\u5143\u7d20\u6570\u91cf\u4e0d\u540c\uff0c\u5219\u4f1a\u4ea7\u751f\u9519\u8bef<br \/>\n(3) \u5982\u679c\u5728\u4e3b\u673a\u4e2d\u53d1\u751f\u4efb\u4f55\u9519\u8bef\uff0c\u5219\u8be5\u4efb\u52a1\u5c06\u4e0d\u4f1a\u88ab\u6267\u884c<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">---<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">play hosts TEST<\/span>\r\n  <span class=\"na\">hosts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">all<\/span>\r\n  <span class=\"na\">connection<\/span><span class=\"pi\">:<\/span> <span class=\"s\">local<\/span>\r\n  <span class=\"na\">gather_facts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">no<\/span>\r\n  <span class=\"na\">vars<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">ansible_python_interpreter<\/span><span class=\"pi\">:<\/span> <span class=\"s\">\/usr\/bin\/python3<\/span>\r\n  <span class=\"na\">tasks<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">fail<\/span> <span class=\"s\">router_2'<\/span>\r\n      <span class=\"na\">fail<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">router_2<\/span> <span class=\"s\">is<\/span> <span class=\"s\">failed'<\/span>\r\n      <span class=\"na\">when<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">('router_2' in inventory_hostname)<\/span>\r\n\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">block<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">set_fact'<\/span>\r\n          <span class=\"na\">set_fact<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"na\">ansible_play_hosts_all_cnt <\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">{{<\/span> <span class=\"s\">ansible_play_hosts_all<\/span> <span class=\"s\">|<\/span> <span class=\"s\">count<\/span> <span class=\"s\">}}\"<\/span>  <span class=\"c1\">#\u30dd\u30a4\u30f3\u30c8(1)<\/span>\r\n            <span class=\"na\">ansible_play_hosts_cnt <\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">{{<\/span> <span class=\"s\">ansible_play_hosts<\/span> <span class=\"s\">|<\/span> <span class=\"s\">count<\/span> <span class=\"s\">}}\"<\/span>\r\n\r\n        <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">set_fact_result'<\/span>\r\n          <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">&gt;-<\/span>\r\n                 <span class=\"s\">ansible_play_hosts_all_cnt: {{ ansible_play_hosts_all_cnt }},<\/span>\r\n                 <span class=\"s\">ansible_play_hosts_cnt: {{ ansible_play_hosts_cnt }}<\/span>\r\n\r\n        <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">failed<\/span> <span class=\"s\">host'<\/span>\r\n          <span class=\"na\">fail<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">failed<\/span> <span class=\"s\">host<\/span> <span class=\"s\">exists'<\/span>\r\n          <span class=\"na\">when<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"pi\">-<\/span> <span class=\"s\">(ansible_play_hosts_all_cnt != ansible_play_hosts_cnt)<\/span>  <span class=\"c1\">#\u30dd\u30a4\u30f3\u30c8(2)<\/span>\r\n\r\n        <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">debug<\/span> <span class=\"s\">-<\/span> <span class=\"s\">all<\/span> <span class=\"s\">OK'<\/span>  <span class=\"c1\"># \u30dd\u30a4\u30f3\u30c8(3)<\/span>\r\n          <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"na\">msg<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">no<\/span> <span class=\"s\">failed<\/span> <span class=\"s\">host'<\/span>\r\n          <span class=\"na\">when<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"pi\">-<\/span> <span class=\"s\">(ansible_play_hosts_all_cnt == ansible_play_hosts_cnt)<\/span>\r\n      <span class=\"na\">run_once<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n<\/code><\/pre>\n<h4>\u6267\u884c\u7ed3\u679c2<\/h4>\n<p>\u7531\u4e8e\u5f3a\u884c\u5c06 Junos \u8def\u7531\u5668 2 \u8bbe\u7f6e\u4e3a\u5931\u8d25\u72b6\u6001\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6700\u540e\u4e00\u4e2a\u4efb\u52a1\uff08\u4efb\u52a1\u540d\uff1adebug &#8211; all OK\uff09\u672a\u88ab\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>PLAY [play hosts TEST] *************************************************************************************************************************************************\r\n\r\nTASK [fail router_2] ***************************************************************************************************************************************************\r\nskipping: [junos_router_1]\r\nfatal: [junos_router_2]: FAILED! =&gt; {\"changed\": false, \"msg\": \"router_2 is failed\"}\r\n\r\nTASK [set_fact] ********************************************************************************************************************************************************\r\nok: [junos_router_1]\r\n\r\nTASK [set_fact_result] *************************************************************************************************************************************************\r\nok: [junos_router_1] =&gt; {\r\n    \"msg\": \"ansible_play_hosts_all_cnt: 2, ansible_play_hosts_cnt: 1\"\r\n}\r\n\r\nTASK [failed host] *****************************************************************************************************************************************************\r\nfatal: [junos_router_1]: FAILED! =&gt; {\"changed\": false, \"msg\": \"failed host exists\"}\r\n\r\nNO MORE HOSTS LEFT *****************************************************************************************************************************************************\r\n\r\nPLAY RECAP *************************************************************************************************************************************************************\r\njunos_router_1             : ok=2    changed=0    unreachable=0    failed=1    skipped=1    rescued=0    ignored=0\r\njunos_router_2             : ok=0    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 ansible\u7684\u7248\u672c\u662f2.9.1. \u5728Ansible\u4e2d\uff0c\u662f\u5426\u6709\u4ee5\u4e0b\u529f\u80fd\uff1f \uff081\uff09\u53ea\u6709\u6240\u6709\u4e3b\u673a\u90fd\u6ca1\u6709\u5931\u8d25\uff0c [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-42357","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010Ansible\u3011\u5982\u679c\u6709\u4efb\u4f55\u4e00\u53f0\u4e3b\u673a\uff08ansible_play_hosts\uff09\u5931\u8d25\uff0c\u6211\u5e0c\u671b\u505c\u6b62playbook\u6267\u884c - Blog - Silicon Cloud<\/title>\n<meta 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