\u5728\u5c06trz\u6587\u4ef6\u8fdc\u7a0b\u5c55\u5f00\u65f6\uff0c\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\u6765\u66f4\u6539\u6e90\u6587\u4ef6\u65f6\uff0c\u4f7f\u7528when\u547d\u4ee4\u4f1a\u53d8\u5f97\u5197\u957f\uff0c\u4f46\u4f7f\u7528jinja2\u7684if\u8bed\u53e5\u7b49\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u7f16\u5199\u3002<\/p>\n
-<\/span> when<\/span>:<\/span> ansible_distribution == 'CentOS'<\/span> \r\n unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> foo.trz<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n\r\n-<\/span> when<\/span>:<\/span> ansible_distribution == 'Ubuntu'<\/span> \r\n unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> bar.trz<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n\r\n-<\/span> when<\/span>:<\/span> ansible_distribution not in ['CentOS', 'Ubuntu']<\/span>\r\n unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> baz.trz<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n<\/code><\/pre>\n\u4f7f\u7528jinja2\u7684if\u6761\u4ef6<\/h1>\n
\u5f53\u4f7f\u7528jinja2\u7684if\u8bed\u53e5\u65f6\uff0c\u53ef\u4ee5\u66f4\u7b80\u6d01\u5730\u8fdb\u884c\u7f16\u5199\u3002<\/p>\n
\r\n-<\/span> unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> >-<\/span>\r\n {%- if ansible_distribution == 'CentOS' -%} foo.trz<\/span>\r\n {%- elif ansible_distribution == 'Ubuntu' -%} bar.trz<\/span>\r\n {%- else -%} baz.trz<\/span>\r\n {%- endif -%}<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n<\/code><\/pre>\n\n- \n
>- \u306fyaml\u306e\u69cb\u6587\u3067\u3001\u7d9a\u304f\u7bc0\u3092\u7a7a\u767d\u3067\u7e4b\u304e\u3001\u6700\u5f8c\u306b\u6539\u884c\u3092\u4ed8\u3051\u306a\u3044\u3002\u306a\u304a\u3001\u30a4\u30f3\u30c7\u30f3\u30c8\u3055\u308c\u305f\u5168\u4f53\u3092””\u306b\u3066\u56f2\u3080\u306a\u3089\u3070>-\u3092\u524a\u9664\u53ef\u80fd\u3002<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
{%- -%}\u306fjinja2\u306e\u69cb\u6587\u3067\u3001\u5185\u5074\u3067\u306fjinja2\u306e\u69cb\u6587\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u53ef\u80fd\u3001\u5916\u5074\u3067\u306f\u524d\u5f8c\u306e\u7a7a\u767d\u3001\u6539\u884c\u3092\u9664\u53bb\u3059\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n\u5f93\u3063\u3066\u3001\u3082\u3061\u308d\u3093foo.trz\u306a\u3069\u3092\u6b21\u306e\u884c\u3068\u3057\u3066\u3082\u53ef\u3002\u304a\u597d\u307f\u3067\u3002<\/p>\n
jinja2\u3067\u306f\u3001if, elif, else, endif, for, endfor, set\u306a\u3069\u304c\u4f7f\u7528\u53ef\u80fd\u3002<\/p>\n
\u5982\u679c\u5728playbook\u4e2d\u4f7f\u7528jinja2\u7684\u60c5\u51b5\u4e0b\u9700\u8981\u8003\u8651\u7684\u4e8b\u9879\u3002<\/h2>\n\n- \n
yaml\u305d\u306e\u3082\u306e\u306e\u69cb\u6587\u3092jinja2\u306b\u3066\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002<\/ul>\n<\/li>\n<\/ul>\n\u3042\u304f\u307e\u3067\u3082\u5024\u306a\u3069yaml\u306e\u4e00\u8981\u7d20\u306b\u5bfe\u3057\u3066\u306e\u5909\u66f4\u306e\u307f\u3002<\/p>\n
\u9019\u6bb5\u6587\u5b57\u7684\u76ee\u7684\u662f\u4ecb\u7d39Jinja2\uff0c\u4f46\u6211\u5011\u4e5f\u6703\u9644\u5e36\u5176\u4ed6\u76f8\u61c9\u7684\u65b9\u6cd5\u3002<\/p>\n
Option 1: \u4f7f\u7528Hash\u3001\u5b57\u5178\u6216\u8005\u6620\u5c04\u6765\u8fdb\u884c\u5bf9\u5e94\u3002<\/h1>\n-<\/span> vars<\/span>:<\/span>\r\n dist2src<\/span>:<\/span>\r\n CentOS<\/span>:<\/span> foo.trz<\/span>\r\n Ubuntu<\/span>:<\/span> bar.trz<\/span>\r\n else<\/span>:<\/span> baz.trz<\/span>\r\n unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> '<\/span>{{<\/span> dist2src[ansible_distribution]|default(dist2src.else)<\/span> }}'<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n<\/code><\/pre>\n\u5728task vars\u4e2d\u4ee5Hash\uff08\u6563\u5217\uff09\u5b9a\u4e49\u5339\u914d\u9879\uff0c\u7136\u540e\u5728\u6b63\u6587\u4e2d\u4ec5\u4f5c\u53c2\u8003\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u53ef\u80fd\u662f\u6700\u5408\u7406\u7684\u9009\u62e9\u3002<\/p>\n
\u65b9\u68483\uff1a\u901a\u8fc7Python\u4e2d\u7684if\u8bed\u53e5\u5904\u7406<\/h1>\n-<\/span> unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> >-<\/span>\r\n {{<\/span>\r\n 'foo.trz' if ansible_distribution == 'CentOS' else <\/span>\r\n 'bar.trz' if ansible_distribution == 'Ubuntu' else <\/span>\r\n 'baz.trz'<\/span>\r\n }}<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n<\/code><\/pre>\n\u4e5f\u53ef\u4ee5\u8fd9\u6837\u5199\u3002
\n\u53c2\u8003\u8d44\u6599\u5728\u54ea\u91cc\uff1f<\/p>\n
\u9009\u98791: \u901a\u8fc7\u4e09\u5143\u6ee4\u6ce2\u5668\u8fdb\u884c\u9002\u5e94\u6027\u89e3\u51b3<\/h1>\n-<\/span> unarchive<\/span>:<\/span>\r\n src<\/span>:<\/span> >-<\/span>\r\n {{<\/span>\r\n ( ansible_distribution == 'CentOS' )|ternary ( 'foo.trz' , (<\/span>\r\n ( ansible_distribution == 'Ubuntu' )|ternary ( 'bar.trz' , <\/span>\r\n 'baz.trz' )<\/span>\r\n ))<\/span>\r\n }}<\/span>\r\n dest<\/span>:<\/span> \/qux<\/span>\r\n<\/code><\/pre>\n\u4f7f\u7528\u53ef\u7528\u4e8e\u4e09\u5143\u8fc7\u6ee4\u5668\u7684\u4e09\u4e2a\u8fd0\u7b97\u7b26\u7684\u793a\u4f8b\u3002
\n\u867d\u7136\u53ef\u80fd\uff0c\u4f46\u8fd9\u6837\u5199\u4e0d\u6613\u9605\u8bfb\u3002
\n\u5c06 ansible_distribution == xxxx \u7528\u62ec\u53f7\u62ec\u8d77\u6765\u662f\u56e0\u4e3a\u8fc7\u6ee4\u5668\u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e ==\u3002<\/p>\n
\u5bf9\u4e0a\u8ff0\u60c5\u51b5\u7684\u4e2a\u4eba\u611f\u53d7<\/h2>\n
\u5728Ansible\u4e2d\u6709\u5f88\u591a\u53ef\u7528\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u4e0d\u77e5\u9053\u5e94\u8be5\u5728\u54ea\u91cc\u8fdb\u884c\u8c03\u67e5\uff0c\u53ea\u80fd\u4e0d\u65ad\u5730\u641c\u7d22\u548c\u5c1d\u8bd5\u5417\uff1f<\/p>\n
\u5728\u4e0b\u9762\u7684\u9009\u62e9\u4e2d\uff0c\u8bf7\u7528\u4e2d\u6587\u8fdb\u884c\u7ffb\u8bd1
\n\u53c2\u8003 – Can be translated as:
\n1. \u53c2\u7167
\n2. \u501f\u9274
\n3. \u53c2\u8003\u8d44\u6599<\/h2>\n\n- \n
\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u305f\u3081\u306e YAML \u5165\u9580 (\u521d\u7d1a\u7de8)<\/ul>\n<\/li>\n<\/ul>\n <\/p>\n
\n- \n
jinja2: Template Designer Documentation<\/ul>\n<\/li>\n<\/ul>\n\u307b\u3052\u3081\u3082: Ansible \u306e Jinja2 \u3092\u6d3b\u7528\u3059\u308b <- \u30ea\u30b9\u30c8(Array)\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fc(Hash)\u306b\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u5834\u5408\u306b\u306f\u8981\u6ce8\u610f\u3002set _ = \u306f set dummy = \u306a\u3069\u3068\u7f6e\u304d\u63db\u3048\u308b\u3068\u6df7\u4e71\u3057\u306a\u3044\u304b\u3002
\nAnsible\u306eregister\u304b\u3089\u4efb\u610f\u306e\u30c7\u30a3\u30af\u30b7\u30e7\u30ca\u30ea\u3084\u30ea\u30b9\u30c8\u3092\u751f\u6210\u3059\u308b – Qiita
\nAnsible\u3067\u6761\u4ef6\u3092\u4f7f\u7528\u3057\u3066\u5909\u6570\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002 – \u7b54\u3048\u3089\u308c\u308b
\nOther Useful Filters<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u5c06trz\u6587\u4ef6\u8fdc\u7a0b\u5c55\u5f00\u65f6\uff0c\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\u6765\u66f4\u6539\u6e90\u6587\u4ef6\u65f6\uff0c\u4f7f\u7528when\u547d\u4ee4\u4f1a\u53d8\u5f97\u5197\u957f\uff0c\u4f46\u4f7f\u7528jinja2\u7684if […]<\/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-42837","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
Ansible: \u6839\u636e\u6761\u4ef6\u4f7f\u7528 if \u8bed\u53e5\u800c\u4e0d\u662f when \u6765\u6839\u636e\u6761\u4ef6\u8fdb\u884c\u503c\u7684\u66f4\u6539 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/ansible-\u6839\u636e\u6761\u4ef6\u4f7f\u7528-if-\u8bed\u53e5\u800c\u4e0d\u662f-when-\u6765\u6839\u636e\u6761\u4ef6\u8fdb\u884c\u503c\u7684\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ansible: \u6839\u636e\u6761\u4ef6\u4f7f\u7528 if \u8bed\u53e5\u800c\u4e0d\u662f when \u6765\u6839\u636e\u6761\u4ef6\u8fdb\u884c\u503c\u7684\u66f4\u6539\" \/>\n<meta property=\"og:description\" content=\"\u5728\u5c06trz\u6587\u4ef6\u8fdc\u7a0b\u5c55\u5f00\u65f6\uff0c\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u7c7b\u578b\u6765\u66f4\u6539\u6e90\u6587\u4ef6\u65f6\uff0c\u4f7f\u7528when\u547d\u4ee4\u4f1a\u53d8\u5f97\u5197\u957f\uff0c\u4f46\u4f7f\u7528jinja2\u7684if […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/ansible-\u6839\u636e\u6761\u4ef6\u4f7f\u7528-if-\u8bed\u53e5\u800c\u4e0d\u662f-when-\u6765\u6839\u636e\u6761\u4ef6\u8fdb\u884c\u503c\u7684\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-25T08:59:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-04T03:21:34+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u5b87\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/ansible-%e6%a0%b9%e6%8d%ae%e6%9d%a1%e4%bb%b6%e4%bd%bf%e7%94%a8-if-%e8%af%ad%e5%8f%a5%e8%80%8c%e4%b8%8d%e6%98%af-when-%e6%9d%a5%e6%a0%b9%e6%8d%ae%e6%9d%a1%e4%bb%b6%e8%bf%9b%e8%a1%8c%e5%80%bc%e7%9a%84\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/ansible-%e6%a0%b9%e6%8d%ae%e6%9d%a1%e4%bb%b6%e4%bd%bf%e7%94%a8-if-%e8%af%ad%e5%8f%a5%e8%80%8c%e4%b8%8d%e6%98%af-when-%e6%9d%a5%e6%a0%b9%e6%8d%ae%e6%9d%a1%e4%bb%b6%e8%bf%9b%e8%a1%8c%e5%80%bc%e7%9a%84\/\",\"name\":\"Ansible: \u6839\u636e\u6761\u4ef6\u4f7f\u7528 if \u8bed\u53e5\u800c\u4e0d\u662f when \u6765\u6839\u636e\u6761\u4ef6\u8fdb\u884c\u503c\u7684\u66f4\u6539 - 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