{"id":42761,"date":"2023-07-28T12:16:27","date_gmt":"2023-09-30T03:51:13","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/ansible-%e9%ad%94%e6%9c%af%e5%8f%98%e9%87%8f%e7%9a%84%e5%88%97%e8%a1%a8%e5%92%8c%e5%86%85%e5%ae%b9\/"},"modified":"2024-04-30T15:44:51","modified_gmt":"2024-04-30T07:44:51","slug":"ansible-%e9%ad%94%e6%9c%af%e5%8f%98%e9%87%8f%e7%9a%84%e5%88%97%e8%a1%a8%e5%92%8c%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/ansible-%e9%ad%94%e6%9c%af%e5%8f%98%e9%87%8f%e7%9a%84%e5%88%97%e8%a1%a8%e5%92%8c%e5%86%85%e5%ae%b9\/","title":{"rendered":"Ansible \u9b54\u672f\u53d8\u91cf\u7684\u5217\u8868\u548c\u5185\u5bb9"},"content":{"rendered":"<p>\u4ee5\u4e0b\u662f\u5728 Ansible Playbook \u4e2d\u53ef\u4ee5\u4f7f\u7528\u7684\u9b54\u672f\u53d8\u91cf\u3002<\/p>\n<p>\u7531\u4e8e\u516c\u5f0f\u6587\u6863\u4e2d\u6ca1\u6709\u5217\u8868\uff0c\u6211\u8bd5\u7740\u5c06\u5176\u5236\u4f5c\u6210\u4e86\u4e00\u4e2a\u5217\u8868\u3002<\/p>\n<h1>\u9b54\u672f\u53d8\u91cf\u662f\u6307<\/h1>\n<p>\u5728Ansible Playbook\u4e2d\uff0c\u6709\u4e00\u4e9b\u53d8\u91cf\u53ef\u4ee5\u5728\u4f7f\u7528 &#8220;gather_facts: False&#8221; \u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u3002<\/p>\n<p>\u5b83\u88ab\u79f0\u4e3a\u9884\u5b9a\u4e49\u53d8\u91cf\uff0c\u5e76\u88ab\u79f0\u4e3a\u9b54\u672f\u53d8\u91cf\u3002<\/p>\n<p>\u4e3b\u8981\u53ef\u4ee5\u83b7\u5f97\u4e0e\u5e93\u5b58\u76f8\u5173\u7684\u4fe1\u606f\u3002<\/p>\n<ul class=\"post-ul\">Ansible doc | Magic Variables<\/ul>\n<h1>\u9b54\u672f\u53d8\u91cf\u6e05\u5355<\/h1>\n<p>\u503c\u662f\u6839\u636e\u6bcf\u53f0\u6b63\u5728\u8fd0\u884cPlaybook\u7684\u76ee\u6807\u673a\u5668\u8fdb\u884c\u8bbe\u7f6e\u7684\u3002<\/p>\n<div>\n<div class=\"post-table\">\u5909\u6570\u540d\u5185\u5bb9<code>group_names<\/code>\u3053\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u30de\u30b7\u30f3\u304c\u5c5e\u3059\u308b\u5168\u30b0\u30eb\u30fc\u30d7\u306e\u4e00\u89a7<code>groups<\/code>\u30b0\u30eb\u30fc\u30d7-to-\u30db\u30b9\u30c8\u306e\u30de\u30c3\u30d4\u30f3\u30b0<code>inventory_hostname<\/code>\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u306b\u66f8\u304b\u308c\u305f\u30db\u30b9\u30c8\u540d<code>inventory_hostname_short<\/code><code>inventory_hostname<\/code>\u306e\u6700\u521d\u306e &#8220;.&#8221; \u307e\u3067<code>play_hosts<\/code>Playbook\u304c\u9069\u7528\u3055\u308c\u308b\u30db\u30b9\u30c8\u4e00\u89a7<code>inventory_dir<\/code>\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u30d5\u30a1\u30a4\u30eb\u306e\u3042\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30d1\u30b9<code>inventory_file<\/code>\u30a4\u30f3\u30d9\u30f3\u30c8\u30ea\u30d5\u30a1\u30a4\u30eb\u306e\u30d9\u30fc\u30b9\u540d<\/div>\n<\/div>\n<p>groups\u4f1a\u6241\u5e73\u5730\u5c55\u5f00\u7fa4\u7ec4\u5c42\u6b21\u7ed3\u6784\uff08\u7fa4\u7ec4\u7684\u7fa4\u7ec4\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>    \u30b0\u30eb\u30fc\u30d7X\uff1a[ \u30db\u30b9\u30c81, \u30db\u30b9\u30c82, ... ]\r\n    \u30b0\u30eb\u30fc\u30d7Y\uff1a[ \u30db\u30b9\u30c81, \u30db\u30b9\u30c82, \u30db\u30b9\u30c83, ... ]\r\n<\/code><\/pre>\n<p>\u4ee5\u7c7b\u4f3c\u7684\u5f62\u5f0f\uff0c\u6301\u6709\u7740\u503c\u3002<\/p>\n<p>inventory_hostname_short \u662f inventory_hostname \u7684\u7b80\u5316\u7248\u672c\uff0c\u5b83\u5c06 inventory_hostname \u89c6\u4e3a\u5b8c\u5168\u9650\u5b9a\u57df\u540d\uff08FQDN\uff09\u5e76\u5220\u9664\u4e86\u57df\u540d\u90e8\u5206\uff0c\u5f97\u5230\u4e86\u4e3b\u673a\u540d\u3002\u7136\u800c\uff0c\u5bf9\u4e8e IPv4 \u5730\u5740 xx.yy.zz.ww\uff0c\u5b83\u4f1a\u53d8\u6210 &#8220;xx&#8221;\u3002\u4e3a\u4e86\u907f\u514d\u53ef\u80fd\u4ea7\u751f\u7684\u610f\u60f3\u4e0d\u5230\u7684\u9519\u8bef\uff0c\u6700\u597d\u4e0d\u8981\u4f7f\u7528\u5b83\u3002<\/p>\n<p>\u901a\u8fc7\u5c06 `inventory_{dir,file}` \u8bbe\u7f6e\u4e3a `{{ inventory_dir ~ &#8220;\/&#8221; ~ inventory_file }}`\uff0c\u53ef\u4ee5\u6784\u5efa\u5b8c\u6574\u7684\u8def\u5f84\u3002<\/p>\n<h3>\u4e3a\u4e86\u4e8b\u5b9e\u800c\u8bbe\u5b9a\u7684\u795e\u5947\u53d8\u91cf\u3002<\/h3>\n<p>\u91cd\u8981\u7684\u9b54\u6cd5\u53d8\u91cf\u3002<\/p>\n<div>\n<div class=\"post-table\">\u5909\u6570\u540d\u5185\u5bb9<code>hostvars<\/code>Playbook\u3092\u9069\u7528\u3059\u308b\u5168\u30de\u30b7\u30f3\u306e facts \u306e\u96c6\u5408<\/div>\n<\/div>\n<p>\u5982\u679cgather_facts\u4e3atrue\uff0c\u5219hostvars\u4e2d\u5305\u542b\u6267\u884cPlaybook\u7684\u6240\u6709\u673a\u5668\u7684facts\u3002<\/p>\n<p>\u5982\u679c gather_facts \u7684\u503c\u4e3a False\uff0c\u5219\u8be5\u503c\u5c06\u4e3a\u7a7a\uff08\u800c\u4e0d\u662f\u672a\u5b9a\u4e49\uff09\u3002<\/p>\n<p>\u5f53\u4f7f\u7528{{ hostvars[&#8220;\u4e3b\u673a\u540d&#8221;] }}\u6765\u5f15\u7528hostvars\u65f6\uff0c\u4f3c\u4e4e\u4f1a\u5728\u5f15\u7528\u65f6\u6dfb\u52a0\u4ee5\u4e0b\u6210\u5458\u3002<\/p>\n<div>\n<div class=\"post-table\">\u8ffd\u52a0\u3055\u308c\u308b\u30e1\u30f3\u30d0\u5185\u5bb9ansible_connectionssh\u3084local\u306a\u3069\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30bf\u30a4\u30d7group_name\u524d\u8ff0\u306e\u30de\u30b8\u30c3\u30af\u5909\u6570inventory_hostname\u524d\u8ff0\u306e\u30de\u30b8\u30c3\u30af\u5909\u6570inventory_hostname_short\u524d\u8ff0\u306e\u30de\u30b8\u30c3\u30af\u5909\u6570<\/div>\n<\/div>\n<p>\u7136\u800c\uff0c\u5728\u6587\u4ef6\u4e2d\u627e\u4e0d\u5230\u4efb\u4f55\u63cf\u8ff0\u3002<\/p>\n<p>\u662f\u6839\u636e\u89c4\u683c\u4e66\u8fd8\u662f\u5076\u7136\u53d1\u751f\u7684\u60c5\u51b5\uff0c\u5982\u679c\u8981\u4f7f\u7528\u7684\u8bdd\uff0c\u6700\u597d\u8fd8\u662f\u5411\u539f\u5382\u8be2\u95ee\u4e00\u4e0b\u4ee5\u9632\u4e07\u4e00\u3002<\/p>\n<h3>\u9884\u7ea6\u8fc7\u7684\u9b54\u672f\u53d8\u91cf<\/h3>\n<p>\u8fd9\u4e2a\u503c\u4e3a\u7a7a\u3002\u8fd9\u662f\u4e00\u4e2a\u7528\u6237\u4e0d\u5e94\u8be5\u4f7f\u7528\u7684\u53d8\u91cf\u3002<\/p>\n<div>\n<div class=\"post-table\">\u5909\u6570\u540d\u5185\u5bb9<code>environment<\/code>\u4e88\u7d04\u6e08\u307f\u5909\u6570<\/div>\n<\/div>\n<h1>\u5b9e\u9645\u83b7\u5f97\u7684\u503c<\/h1>\n<p>\u6211\u5199\u4e86\u4e00\u4e2a\u5c0fPlaybook\u5e76\u5c1d\u8bd5\u68c0\u67e5\u9b54\u672f\u53d8\u91cf\u7684\u503c\u3002<\/p>\n<p>\u4e3a\u4e86\u89c2\u5bdfgroups\u7684\u52a8\u6001\uff0c\u6211\u5728\u5b58\u50a8\u4e2d\u5b9a\u4e49\u7684\u7ec4\u88ab\u5f3a\u884c\u5206\u5c42\u3002\u5c31\u662f\u8fd9\u4e2a\u610f\u601d\u3002<\/p>\n<pre class=\"post-pre\"><code>    test-servers\r\n        +---- test-servers1\r\n        |         +---- localhost1\r\n        |\r\n        +---- test-servers2\r\n                  +---- localhost2\r\n<\/code><\/pre>\n<h2>\u6267\u884c\u7ed3\u679c<\/h2>\n<p>\u9996\u5148\uff0c\u4ece\u53ef\u4ee5\u83b7\u5f97\u7684\u503c\u6765\u5c55\u793a\u3002<\/p>\n<p>\u6b63\u5728\u8fd0\u884cgather_facts:False\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">[ansibleman@ponet ~]$<\/span> ansible-playbook <span class=\"nt\">-i<\/span> hosts magic_vars.yml\r\n<span class=\"go\">\r\nPLAY [test-servers] ***********************************************************\r\n\r\nTASK: [Facts | ansible_hostname] **********************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_hostname\": \"{{ ansible_hostname }}\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_hostname\": \"{{ ansible_hostname }}\"\r\n}\r\n\r\nTASK: [Facts | ansible_default_ipv4] ******************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_default_ipv4\": \"{{ ansible_default_ipv4 }}\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_default_ipv4\": \"{{ ansible_default_ipv4 }}\"\r\n}\r\n\r\nTASK: [Facts | ansible_env] ***************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_env\": \"{{ ansible_env }}\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"ansible_env\": \"{{ ansible_env }}\"\r\n}\r\n\r\nTASK: [Magic | group_names] ***************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"group_names\": [\r\n        \"test-servers\",\r\n        \"test-servers1\"\r\n    ]\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"group_names\": [\r\n        \"test-servers\",\r\n        \"test-servers2\"\r\n    ]\r\n}\r\n\r\nTASK: [Magic | groups] ********************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"groups\": {\r\n        \"all\": [\r\n            \"localhost1\",\r\n            \"localhost2\"\r\n        ],\r\n        \"test-servers\": [\r\n            \"localhost1\",\r\n            \"localhost2\"\r\n        ],\r\n        \"test-servers1\": [\r\n            \"localhost1\"\r\n        ],\r\n        \"test-servers2\": [\r\n            \"localhost2\"\r\n        ],\r\n        \"ungrouped\": []\r\n    }\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"groups\": {\r\n        \"all\": [\r\n            \"localhost1\",\r\n            \"localhost2\"\r\n        ],\r\n        \"test-servers\": [\r\n            \"localhost1\",\r\n            \"localhost2\"\r\n        ],\r\n        \"test-servers1\": [\r\n            \"localhost1\"\r\n        ],\r\n        \"test-servers2\": [\r\n            \"localhost2\"\r\n        ],\r\n        \"ungrouped\": []\r\n    }\r\n}\r\n\r\nTASK: [Magic | inventory_hostname] ********************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_hostname\": \"localhost1\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_hostname\": \"localhost2\"\r\n}\r\n\r\nTASK: [Magic | inventory_hostname_short] **************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_hostname_short\": \"localhost1\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_hostname_short\": \"localhost2\"\r\n}\r\n\r\nTASK: [Magic | play_hosts] ****************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"play_hosts\": [\r\n        \"localhost1\",\r\n        \"localhost2\"\r\n    ]\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"play_hosts\": [\r\n        \"localhost1\",\r\n        \"localhost2\"\r\n    ]\r\n}\r\n\r\nTASK: [Magic | inventory_dir] *************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_dir\": \"\/home\/ansibleman\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_dir\": \"\/home\/ansibleman\"\r\n}\r\n\r\nTASK: [Magic | inventory_file] ************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_file\": \"hosts\"\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"inventory_file\": \"hosts\"\r\n}\r\n\r\nTASK: [Magic for Facts | hostvars] ********************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"hostvars\": {\r\n        \"localhost1\": {},\r\n        \"localhost2\": {}\r\n    }\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"hostvars\": {\r\n        \"localhost1\": {},\r\n        \"localhost2\": {}\r\n    }\r\n}\r\n\r\nTASK: [Reserved | environment] ************************************************\r\n<\/span><span class=\"gp\">ok: [localhost1] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"environment\": {}\r\n}\r\n<\/span><span class=\"gp\">ok: [localhost2] =&gt;<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"go\">    \"environment\": {}\r\n}\r\n\r\nPLAY RECAP ********************************************************************\r\nlocalhost1                 : ok=12   changed=0    unreachable=0    failed=0\r\nlocalhost2                 : ok=12   changed=0    unreachable=0    failed=0\r\n<\/span><\/code><\/pre>\n<h3>\u4e00\u4e9b\u89e3\u91ca<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Facts\u306f\u3001gather_facts:False \u306b\u3057\u305f\u306e\u3067\u3001\u672a\u5b9a\u7fa9\u5909\u6570\u306e\u72b6\u614b\u3002debug\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u306f\u3001\u672a\u5b9a\u7fa9\u5909\u6570\u306f\u6587\u5b57\u5217\u3068\u3057\u3066\u51e6\u7406\u3055\u308c\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">group_name \u3067\u306f\u3001localhost1 \u3068 localhost2 \u3067\u3001\u3061\u3083\u3093\u3068\u5225\u3005\u306e\u30b0\u30eb\u30fc\u30d7\u4e00\u89a7\u3092\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">play_hosts \u3067\u306f\u3001Playbook\u3092\u5b9f\u884c\u3059\u308b\u5168\u30bf\u30fc\u30b2\u30c3\u30c8\u30de\u30b7\u30f3\u540d\u3092\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u3002<\/ul>\n<p>\u867d\u7136\u7a0d\u5fae\u504f\u79bb\u4e3b\u9898\uff0c\u4f46ansible_hostname\u5c06\u6210\u4e3a\u76ee\u6807\u673a\u5668\u7684\u771f\u5b9e\u4e3b\u673a\u540d\u3002\u5b83\u662fFacts\u4e2d\u7684\u4e00\u4e2a\u53c2\u6570\uff0c\u5f53gather_facts:True\u65f6\uff0c\u5728\u76ee\u6807\u673a\u5668\u4e0a\u6b63\u786e\u83b7\u53d6\u5e76\u4f20\u5165\u6b63\u786e\u7684\u503c\u3002<\/p>\n<h2>\u6218\u7565\u89c4\u5212\u4e66<\/h2>\n<p>\u4e3a\u4e86\u83b7\u5f97\u4ee5\u4e0a\u7ed3\u679c\uff0c\u5199\u4e0b\u6765\u7684Playbook\u5728\u8fd9\u91cc\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">---<\/span> <span class=\"c1\"># file: magic_vars.yml<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">hosts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">test-servers<\/span>\r\n\r\n  <span class=\"na\">gather_facts<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">{{<\/span> <span class=\"s\">check_env<\/span> <span class=\"s\">|<\/span> <span class=\"s\">default(False)<\/span> <span class=\"s\">}}\"<\/span>\r\n\r\n  <span class=\"na\">tasks<\/span><span class=\"pi\">:<\/span>\r\n\r\n    <span class=\"c1\"># Facts<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Facts | ansible_hostname<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=ansible_hostname<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Facts | ansible_default_ipv4<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=ansible_default_ipv4<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Facts | ansible_env<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=ansible_env<\/span>\r\n\r\n    <span class=\"c1\"># Magic variables<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | group_names<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=group_names<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | groups<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=groups<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | inventory_hostname<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=inventory_hostname<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | inventory_hostname_short<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=inventory_hostname_short<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | play_hosts<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=play_hosts<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | inventory_dir<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=inventory_dir<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic | inventory_file<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=inventory_file<\/span>\r\n\r\n    <span class=\"c1\"># Magic variable for Facts<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Magic for Facts | hostvars<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=hostvars<\/span>\r\n\r\n    <span class=\"c1\"># Reserved magic variable<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Reserved | environment<\/span>\r\n      <span class=\"na\">debug<\/span><span class=\"pi\">:<\/span> <span class=\"s\">var=environment<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u901a\u8fc7\u547d\u4ee4\u884c\u7684 -e \u9009\u9879\u4e3a check_env \u53d8\u91cf\u8d4b\u503c\uff0c\u5373\u4f7f\u4e0d\u5bf9 Playbook \u8fdb\u884c\u4fee\u6539\uff0c\u4e5f\u53ef\u4ee5\u63a7\u5236 gather_facts:\u3002<\/p>\n<p>\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>ansible-playbook -i hosts magic_vars.yml\r\n<\/code><\/pre>\n<p>\u5f53\u6211\u4eec\u60f3\u6536\u96c6\u4e8b\u5b9e\u65f6\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\u3002<\/p>\n<pre class=\"post-pre\"><code>ansible-playbook -i hosts magic_vars.yml -e \"check_env=True\"\r\n<\/code><\/pre>\n<h2>\u5e93\u5b58\u548c\/etc\/hosts<\/h2>\n<p>\u8fd9\u91cc\u662f\u88ab\u7528\u4e8e\u7684\u5e93\u5b58\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">[test-servers1]<\/span>\r\n<span class=\"err\">localhost1<\/span>  <span class=\"py\">ansible_connection<\/span><span class=\"p\">=<\/span><span class=\"s\">local<\/span>\r\n\r\n<span class=\"nn\">[test-servers2]<\/span>\r\n<span class=\"err\">localhost2<\/span>  <span class=\"py\">ansible_connection<\/span><span class=\"p\">=<\/span><span class=\"s\">local<\/span>\r\n\r\n<span class=\"nn\">[test-servers:children]<\/span>\r\n<span class=\"err\">test-servers1<\/span>\r\n<span class=\"err\">test-servers2<\/span>\r\n<\/code><\/pre>\n<p>\u5728\/etc\/hosts\u6587\u4ef6\u4e2d\uff0c\u5c06\u4e3b\u673a\u540d\u4e0eIP\u5730\u5740\u5728\u6e05\u5355\u4e2d\u8fdb\u884c\u5bf9\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code>127.0.0.1   localhost localhost.localdomain\r\n127.0.0.1   localhost1\r\n127.0.0.1   localhost2\r\n<\/code><\/pre>\n<h1>\u6279\u91cf\u8bbe\u7f6e\u4e3b\u673a\u540d<\/h1>\n<p>\u4f7f\u7528\u6e05\u5355\u4e0a\u5199\u7740\u7684\u4e3b\u673a\u540d\uff0c\u5728\u6240\u6709\u76ee\u6807\u673a\u5668\u4e0a\u8fdb\u884c\u6279\u91cf\u8bbe\u7f6e\u4e3b\u673a\u540d\u7684\u5c1d\u8bd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">---<\/span> <span class=\"c1\"># file: set_hostname.yml<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">hosts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">test-servers<\/span>\r\n  <span class=\"na\">gather_facts<\/span><span class=\"pi\">:<\/span> <span class=\"s\">False<\/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=\"s\">Set the hostname using the inventory<\/span>\r\n      <span class=\"na\">hostname<\/span><span class=\"pi\">:<\/span> <span class=\"s\">name={{ inventory_hostname }}<\/span>\r\n      <span class=\"na\">sudo<\/span><span class=\"pi\">:<\/span> <span class=\"s\">yes<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u6e05\u5355\u4e2d\u5199\u4e0b\u7684\u4e3b\u673a\u540d\uff0c\u9700\u8981\u5728\/etc\/hosts\u7b49\u6587\u4ef6\u4e2d\u8fdb\u884c\u6ce8\u518c\uff0c\u5e76\u4e0e\u76f8\u5e94\u7684IP\u5730\u5740\u5bf9\u5e94\u3002<\/p>\n<p>\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u6267\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>    $ ansible-playbook -i hosts set_hostname.yml\r\n<\/code><\/pre>\n<p>\u5f53\u8981\u542f\u52a8\u548c\u8fdb\u884c\u521d\u59cb\u8bbe\u7f6e\u5927\u91cf\u865a\u62df\u673a\u65f6\uff0c\u8bbe\u7f6e\u4e3agather_facts:False\u53ef\u80fd\u4f1a\u66f4\u65b9\u4fbf\uff0c\u540c\u65f6\u8fd8\u80fd\u4fdd\u6301\u64cd\u4f5c\u7684\u6d41\u7545\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u4e0b\u662f\u5728 Ansible Playbook \u4e2d\u53ef\u4ee5\u4f7f\u7528\u7684\u9b54\u672f\u53d8\u91cf\u3002 \u7531\u4e8e\u516c\u5f0f\u6587\u6863\u4e2d\u6ca1\u6709\u5217\u8868\uff0c\u6211\u8bd5\u7740\u5c06\u5176\u5236\u4f5c\u6210\u4e86 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-42761","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with 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