{"id":269,"date":"2017-06-26T11:16:16","date_gmt":"2017-06-26T03:16:16","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=269"},"modified":"2017-06-26T11:16:16","modified_gmt":"2017-06-26T03:16:16","slug":"ansible%e5%b0%8f%e7%bb%93%ef%bc%88%e4%b9%9d%ef%bc%89playbook%e8%bf%9b%e9%98%b6","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=269","title":{"rendered":"ansible\u5c0f\u7ed3\uff08\u4e5d\uff09playbook\u8fdb\u9636"},"content":{"rendered":"

\u5e76\u53d1\u8fd0\u884c<\/h3>\n

ansible\u9ed8\u8ba4\u53ea\u4f1a\u521b\u5efa5\u4e2a\u8fdb\u7a0b,\u6240\u4ee5\u4e00\u6b21\u4efb\u52a1\u53ea\u80fd\u540c\u65f6\u63a7\u52365\u53f0\u673a\u5668\u6267\u884c.\u90a3\u5982\u679c\u4f60\u6709\u5927\u91cf\u7684\u673a\u5668\u9700\u8981\u63a7\u5236,\u6216\u8005\u4f60\u5e0c\u671b\u51cf\u5c11\u8fdb\u7a0b\u6570,\u90a3\u4f60\u53ef\u4ee5\u91c7\u53d6\u5f02\u6b65\u6267\u884c.ansible\u7684\u6a21\u5757\u53ef\u4ee5\u628atask\u653e\u8fdb\u540e\u53f0,\u7136\u540e\u8f6e\u8be2\u5b83.\u8fd9\u4f7f\u5f97\u5728\u4e00\u5b9a\u8fdb\u7a0b\u6570\u4e0b\u80fd\u8ba9\u5927\u91cf\u9700\u8981\u7684\u673a\u5668\u540c\u65f6\u8fd0\u4f5c\u8d77\u6765.<\/p>\n

\u4f7f\u7528async\u548cpoll\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u4fbf\u53ef\u4ee5\u5e76\u884c\u8fd0\u884c\u4e00\u4e2a\u4efb\u52a1. async\u8fd9\u4e2a\u5173\u952e\u5b57\u89e6\u53d1ansible\u5e76\u884c\u8fd0\u4f5c\u4efb\u52a1,\u800casync\u7684\u503c\u662fansible\u7b49\u5f85\u8fd0\u884c\u8fd9\u4e2a\u4efb\u52a1\u7684\u6700\u5927\u8d85\u65f6\u503c,\u800cpoll\u5c31\u662fansible\u68c0\u67e5\u8fd9\u4e2a\u4efb\u52a1\u662f\u5426\u5b8c\u6210\u7684\u9891\u7387\u65f6\u95f4.<\/p>\n

\u5982\u679c\u4f60\u5e0c\u671b\u5728\u6574\u4e2a\u96c6\u7fa4\u91cc\u9762\u5e73\u884c\u7684\u6267\u884c\u4e00\u4e0bupdatedb\u8fd9\u4e2a\u547d\u4ee4.\u4f7f\u7528\u4e0b\u9762\u7684\u914d\u7f6e<\/p>\n

    \n
  1. –<\/span> hosts<\/span>:<\/span> all<\/span><\/li>\n
  2. tasks<\/span>:<\/span><\/li>\n
  3. –<\/span> name<\/span>:<\/span> Install<\/span> mlocate<\/span><\/li>\n
  4. yum<\/span>:<\/span> name<\/span>=<\/span>mlocate state<\/span>=<\/span>installed<\/span><\/li>\n
  5. –<\/span> name<\/span>:<\/span> Run<\/span> updatedb<\/span><\/li>\n
  6. command<\/span>:<\/span> \/<\/span>usr<\/span>\/<\/span>bin<\/span>\/<\/span>updatedb<\/span><\/li>\n
  7. async<\/span>:<\/span> 300<\/span><\/li>\n
  8. poll<\/span>:<\/span> 10<\/span><\/li>\n<\/ol>\n

    \u4f60\u4f1a\u53d1\u73b0\u5f53\u4f60\u4f7f\u7528\u4e0a\u9762\u7684\u4f8b\u5b50\u63a7\u5236\u8d85\u8fc75\u53f0\u673a\u5668\u7684\u65f6\u5019,command.\u5728\u4e0a\u9762yum\u6a21\u5757\u4f1a\u5148\u57285\u53f0\u673a\u5668\u4e0a\u8dd1,\u5b8c\u6210\u540e\u518d\u7ee7\u7eed\u4e0b\u9762\u7684\u673a\u5668.\u800c\u4e0a\u9762command\u6a21\u5757\u7684\u4efb\u52a1\u4f1a\u4e00\u6b21\u6027\u5728\u6240\u6709\u673a\u5668\u4e0a\u90fd\u6267\u884c\u4e86,\u7136\u540e\u76d1\u542c\u5b83\u7684\u56de\u8c03\u7ed3\u679c<\/p>\n

    \u5982\u679c\u4f60\u7684command\u662f\u63a7\u5236\u673a\u5668\u5f00\u542f\u4e00\u4e2a\u8fdb\u7a0b\u653e\u5230\u540e\u53f0,\u90a3\u5c31\u4e0d\u9700\u8981\u68c0\u67e5\u8fd9\u4e2a\u4efb\u52a1\u662f\u5426\u5b8c\u6210\u4e86.\u4f60\u53ea\u9700\u8981\u7ee7\u7eed\u5176\u4ed6\u7684\u52a8\u4f5c,\u6700\u540e\u518d\u4f7f\u7528wait_for\u8fd9\u4e2a\u6a21\u5757\u53bb\u68c0\u67e5\u4e4b\u524d\u7684\u8fdb\u7a0b\u662f\u5426\u6309\u9884\u671f\u4e2d\u5f00\u542f\u4e86\u4fbf\u53ef.\u53ea\u9700\u8981\u628apoll\u8fd9\u4e2a\u503c\u8bbe\u7f6e\u4e3a0,\u4fbf\u53ef\u4ee5\u6309\u4e0a\u9762\u7684\u8981\u6c42\u914d\u7f6eansible\u4e0d\u7b49\u5f85job\u7684\u5b8c\u6210.<\/p>\n

    \u6700\u540e,\u6216\u8005\u4f60\u8fd8\u6709\u4e00\u79cd\u9700\u6c42\u662f\u6709\u4e00\u4e2atask\u5b83\u662f\u9700\u8981\u8fd0\u884c\u5f88\u957f\u7684\u65f6\u95f4,\u90a3\u4f60\u9700\u8981\u8bbe\u7f6e\u4e00\u76f4\u7b49\u5f85\u8fd9\u4e2ajob\u5b8c\u6210.\u8fd9\u4e2a\u65f6\u5019\u4f60\u628aasync\u7684\u503c\u8bbe\u62100\u4fbf\u53ef.<\/p>\n

    \u603b\u7ed3\u6765\u8bf4,\u5927\u6982\u6709\u4ee5\u4e0b\u7684\u4e00\u4e9b\u573a\u666f\u4f60\u662f\u9700\u8981\u4f7f\u7528\u5230ansible\u7684polling\u7279\u6027\u7684<\/p>\n

      \n
    1. \u4f60\u6709\u4e00\u4e2atask\u9700\u8981\u8fd0\u884c\u5f88\u957f\u7684\u65f6\u95f4,\u8fd9\u4e2atask\u5f88\u53ef\u80fd\u4f1a\u8fbe\u5230timeout.<\/li>\n
    2. \u4f60\u6709\u4e00\u4e2a\u4efb\u52a1\u9700\u8981\u5728\u5927\u91cf\u7684\u673a\u5668\u4e0a\u9762\u8fd0\u884c<\/li>\n
    3. \u4f60\u6709\u4e00\u4e2a\u4efb\u52a1\u662f\u4e0d\u9700\u8981\u7b49\u5f85\u5b83\u5b8c\u6210\u7684<\/li>\n<\/ol>\n

      \u5f53\u7136\u4e5f\u6709\u4e00\u4e9b\u573a\u666f\u662f\u4e0d\u9002\u5408\u4f7f\u7528polling\u7279\u6027\u7684<\/p>\n

        \n
      1. \u4f60\u7684\u8fd9\u4e2a\u4efb\u52a1\u662f\u9700\u8981\u8fd0\u884c\u5b8c\u540e\u624d\u80fd\u7ee7\u7eed\u53e6\u5916\u7684\u4efb\u52a1\u7684<\/li>\n
      2. \u4f60\u7684\u8fd9\u4e2a\u4efb\u52a1\u80fd\u5f88\u5feb\u7684\u5b8c\u6210<\/li>\n<\/ol>\n

        Looping<\/h3>\n

        \u5728ansible\u4f60\u80fd\u591f\u901a\u8fc7\u4e0d\u540c\u7684\u8f93\u5165\u53bb\u91cd\u590d\u7684\u6267\u884c\u540c\u4e00\u4e2a\u6a21\u5757,\u4e3e\u4e2a\u4f8b\u5b50,\u4f60\u9700\u8981\u7ba1\u7406\u51e0\u4e2a\u5177\u6709\u76f8\u540c\u6743\u9650\u7684\u6587\u4ef6.\u4f60\u80fd\u591f\u7528\u4e00\u4e2afor\u5faa\u73af\u8fed\u4ee3\u4e00\u4e2afacts\u6216\u8005variables\u53bb\u51cf\u5c11\u4f60\u7684\u91cd\u590d\u52b3\u52a8.<\/p>\n

        \u4f7f\u7528with_items\u8fd9\u4e2a\u5173\u952e\u5b57\u5c31\u53ef\u4ee5\u5b8c\u6210\u8fed\u4ee3\u4e00\u4e2a\u5217\u8868.\u5217\u8868\u91cc\u9762\u7684\u6bcf\u4e2a\u53d8\u91cf\u90fd\u53eb\u505aitem.\u6709\u4e00\u4e9b\u6a21\u5757\u8b6c\u5982yum,\u5b83\u5c31\u652f\u6301\u4f7f\u7528with_items\u53bb\u5b89\u88c5\u4e00\u5217\u8868\u7684\u5305,\u800c\u4e0d\u9700\u8981\u5199\u597d\u591a\u4e2ayum\u7684task<\/p>\n

        \u4e0b\u9762\u6765\u4e00\u4e2awith_items\u7684\u4f8b\u5b50<\/p>\n

          \n
        1. tasks<\/span>:<\/span><\/li>\n
        2. –<\/span> name<\/span>:<\/span> Secure<\/span> config files<\/span><\/li>\n
        3. file<\/span>:<\/span> path<\/span>=\/<\/span>etc<\/span>\/{{<\/span> item <\/span>}}<\/span> mode<\/span>=<\/span>0600<\/span> owner<\/span>=<\/span>root group<\/span>=<\/span>root<\/span><\/li>\n
        4. with_items<\/span>:<\/span><\/li>\n
        5. –<\/span> my<\/span>.<\/span>cnf<\/span><\/li>\n
        6. –<\/span> shadow<\/span><\/li>\n
        7. –<\/span> fstab<\/span><\/li>\n<\/ol>\n

          \u9664\u4e86\u4f7f\u7528items\u8f6e\u8bad,ansible\u8fd8\u6709\u4e00\u79cd\u65b9\u5f0f\u662flookup\u63d2\u4ef6.\u8fd9\u4e9b\u63d2\u4ef6\u53ef\u4ee5\u8ba9ansible\u4ece\u5916\u90e8\u53d6\u5f97\u6570\u636e,\u4f8b\u5982,\u4f60\u6216\u8bb8\u5e0c\u671b\u53ef\u4ee5\u901a\u8fc7\u4e00\u79cd\u7279\u5b9a\u6a21\u5f0f\u53bb\u4e0a\u4f20\u4f60\u7684\u6587\u4ef6.<\/p>\n

          \u5728\u8fd9\u4e2a\u4f8b\u5b50\u91cc\u9762,\u6211\u4eec\u4f1a\u4e0a\u4f20\u6240\u6709\u7684public keys\u5230\u4e00\u4e2a\u76ee\u5f55,\u7136\u540e\u805a\u5408\u5b83\u4eec\u5230\u4e00\u4e2aauthorized_keys\u6587\u4ef6<\/p>\n

            \n
          1. tasks<\/span>:<\/span> #1<\/span><\/li>\n
          2. –<\/span> name<\/span>:<\/span> Make<\/span> key directory <\/span>#2<\/span><\/li>\n
          3. file<\/span>:<\/span> path<\/span>=\/<\/span>root<\/span>\/.<\/span>sshkeys ensure<\/span>=<\/span>directory mode<\/span>=<\/span>0700<\/span><\/li>\n
          4. owner<\/span>=<\/span>root group<\/span>=<\/span>root <\/span>#3<\/span><\/li>\n
          5. –<\/span> name<\/span>:<\/span> Upload<\/span> public keys <\/span>#4<\/span><\/li>\n
          6. copy<\/span>:<\/span> src<\/span>={{<\/span> item <\/span>}}<\/span> dest<\/span>=\/<\/span>root<\/span>\/.<\/span>sshkeys mode<\/span>=<\/span>0600<\/span><\/li>\n
          7. owner<\/span>=<\/span>root group<\/span>=<\/span>root <\/span>#5<\/span><\/li>\n
          8. with_fileglob<\/span>:<\/span> #6<\/span><\/li>\n
          9. –<\/span> keys<\/span>\/*.<\/span>pub <\/span>#7<\/span><\/li>\n
          10. –<\/span> name<\/span>:<\/span> Assemble<\/span> keys into authorized_keys file <\/span>#8<\/span><\/li>\n
          11. assemble<\/span>:<\/span> src<\/span>=\/<\/span>root<\/span>\/.<\/span>sshkeys dest<\/span>=\/<\/span>root<\/span>\/.<\/span>ssh<\/span>\/<\/span>authorized_keys<\/span><\/li>\n
          12. mode<\/span>=<\/span>0600<\/span> owner<\/span>=<\/span>root group<\/span>=<\/span>root <\/span>#9<\/span><\/li>\n<\/ol>\n

            loop\u6a21\u5757\u4e00\u822c\u5728\u4e0b\u9762\u7684\u573a\u666f\u4e2d\u4f7f\u7528<\/p>\n

              \n
            1. \u7c7b\u4f3c\u7684\u914d\u7f6e\u6a21\u5757\u91cd\u590d\u4e86\u591a\u904d<\/li>\n
            2. fact\u662f\u4e00\u4e2a\u5217\u8868<\/li>\n
            3. \u521b\u5efa\u591a\u4e2a\u6587\u4ef6,\u7136\u540e\u4f7f\u7528assemble\u805a\u5408\u6210\u4e00\u4e2a\u5927\u6587\u4ef6<\/li>\n
            4. \u4f7f\u7528with_fileglob\u5339\u914d\u7279\u5b9a\u7684\u6587\u4ef6\u7ba1\u7406<\/li>\n<\/ol>\n

              \u6761\u4ef6\u8bed\u53e5<\/h3>\n

              \u6709\u4e00\u4e9b\u6a21\u5757,\u4f8b\u5982copy\u8fd9\u4e2a\u6a21\u5757\u6709\u4e00\u4e9b\u673a\u5236\u80fd\u8df3\u8fc7\u672c\u6b21\u6a21\u5757\u7684\u8fd0\u884c.\u5176\u5b9e\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u7684\u6761\u4ef6\u8bed\u53e5\u53bb\u914d\u7f6e\u8df3\u8fc7\u6a21\u5757,\u8fd9\u6837\u65b9\u4fbf\u4f60\u670d\u52a1\u80fd\u591f\u9009\u62e9\u4f7f\u7528\u4e0d\u540c\u7684\u5305\u7ba1\u7406(apt,yum)\u548c\u4e0d\u540c\u7684\u6587\u4ef6\u7cfb\u7edf.\u5e76\u4e14\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528set_fact\u8fd9\u4e2a\u6a21\u5757\u505a\u6210\u66f4\u591a\u7684\u5dee\u5f02\u914d\u7f6e<\/p>\n

              \u4f60\u80fd\u591f\u4f7f\u7528when\u8fd9\u4e2a\u5173\u952e\u5b57\u53bb\u8fbe\u5230\u8df3\u8fc7\u672c\u6b21\u6a21\u5757\u8fd0\u884c\u7684\u6548\u679c,when\u5173\u952e\u5b57\u540e\u9762\u8ddf\u7740\u7684\u662fpython\u7684\u8868\u8fbe\u5f0f,\u5728\u8868\u8fbe\u5f0f\u4e2d\u4f60\u80fd\u591f\u4f7f\u7528\u4efb\u4f55\u7684\u53d8\u91cf\u6216\u8005fact,\u5f53\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u8fd4\u56de\u7684\u662ffalse,\u4fbf\u4f1a\u8df3\u8fc7\u672c\u6b21\u7684\u6a21\u5757<\/p>\n

              \u4e0b\u9762\u4e00\u6bb5\u914d\u7f6e\u5c31\u8bf4\u660e\u4e86\u5982\u4f55\u5728debian\u548credhat\u7cfb\u7edf\u4e2d\u9009\u62e9apt\u8fd8\u662fyum\u5305\u7ba1\u7406,\u5e76\u4e14\u5982\u679c\u4e0d\u662f\u4ee5\u4e0a\u4e24\u4e2a\u7cfb\u7edf,\u4f1a\u7528debug\u6a21\u5757\u628a\u7cfb\u7edf\u6253\u5370\u51fa\u6765<\/p>\n

                \n
              1. —<\/span><\/li>\n
              2. –<\/span> name<\/span>:<\/span> Install<\/span> VIM<\/span><\/li>\n
              3. hosts<\/span>:<\/span> all<\/span><\/li>\n
              4. tasks<\/span>:<\/span><\/li>\n
              5. –<\/span> name<\/span>:<\/span> Install<\/span> VIM via yum<\/span><\/li>\n
              6. yum<\/span>:<\/span> name<\/span>=<\/span>vim<\/span>–<\/span>enhanced state<\/span>=<\/span>installed<\/span><\/li>\n
              7. when<\/span>:<\/span> ansible_os_family <\/span>==<\/span> “RedHat”<\/span><\/li>\n
              8. –<\/span> name<\/span>:<\/span> Install<\/span> VIM via apt<\/span><\/li>\n
              9. apt<\/span>:<\/span> name<\/span>=<\/span>vim state<\/span>=<\/span>installed<\/span><\/li>\n
              10. when<\/span>:<\/span> ansible_os_family <\/span>==<\/span> “Debian”<\/span><\/li>\n
              11. –<\/span> name<\/span>:<\/span> Unexpected<\/span> OS family<\/span><\/li>\n
              12. debug<\/span>:<\/span> msg<\/span>=<\/span>“OS Family {{ ansible_os_family }} is not supported”<\/span> fail<\/span>=<\/span>yes<\/span><\/li>\n
              13. when<\/span>:<\/span> not<\/span> ansible_os_family <\/span>==<\/span> “RedHat”<\/span> or<\/span> ansible_os_family <\/span>==<\/span> “Debian”<\/span><\/li>\n<\/ol>\n

                \u6761\u4ef6\u8bed\u53e5\u8fd8\u6709\u4e00\u79cd\u7528\u6cd5,\u5b83\u8fd8\u53ef\u4ee5\u8ba9\u4f60\u5f53\u8fbe\u5230\u4e00\u5b9a\u7684\u6761\u4ef6\u7684\u65f6\u5019\u6682\u505c\u4e0b\u6765,\u7b49\u5f85\u4f60\u7684\u8f93\u5165\u786e\u8ba4.\u4e00\u822c\u60c5\u51b5\u4e0b,\u5f53ansible\u906d\u9047\u5230error\u65f6,\u5b83\u4f1a\u76f4\u63a5\u7ed3\u675f\u8fd0\u884c.\u90a3\u5176\u5b9e\u4f60\u53ef\u4ee5\u5f53\u906d\u9047\u5230\u4e0d\u662f\u9884\u671f\u7684\u60c5\u51b5\u7684\u65f6\u5019\u7ed9\u4f7f\u7528pause\u6a21\u5757,\u8fd9\u6837\u53ef\u4ee5\u8ba9\u7528\u6237\u81ea\u5df1\u51b3\u5b9a\u662f\u5426\u7ee7\u7eed\u8fd0\u884c\u4efb\u52a1<\/p>\n

                  \n
                1. name<\/span>:<\/span> pause <\/span>for<\/span> unexpected conditions<\/span><\/li>\n
                2. pause<\/span>:<\/span> prompt<\/span>=<\/span>“Unexpected OS”<\/span><\/li>\n
                3. when<\/span>:<\/span> ansible_os_family <\/span>!=<\/span> “RedHat”<\/span><\/li>\n<\/ol>\n

                  \u4e0b\u9762\u4e00\u4e9b\u60c5\u666f\u5efa\u8bae\u4f60\u4f7f\u7528\u6761\u4ef6\u8bed\u53e5\u505a\u8df3\u8fc7\u52a8\u4f5c<\/p>\n

                    \n
                  1. job\u91cc\u9762\u6709\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u7684\u673a\u5668<\/li>\n
                  2. \u63d0\u793a\u7528\u6237,\u7136\u540e\u518d\u6267\u884c\u64cd\u4f5c\u8bf7\u6c42<\/li>\n
                  3. \u63d0\u9ad8\u6027\u80fd,\u907f\u514d\u8fd0\u884c\u4e00\u4e2a\u9700\u8981\u6267\u884c\u4e00\u6bb5\u65f6\u95f4\u6a21\u5757,\u800c\u4e14\u4f60\u77e5\u9053\u8fd9\u4e2a\u6a21\u5757\u4e0d\u4f1a\u8fd4\u56dechanged<\/li>\n<\/ol>\n

                    task\u59d4\u6258<\/h3>\n

                    \u9ed8\u8ba4ansible\u7684\u6240\u6709task\u662f\u5728\u6211\u4eec\u7684\u914d\u7f6e\u7684\u7ba1\u7406\u673a\u5668\u4e0a\u9762\u8fd0\u884c\u7684,\u5f53\u5728\u4e00\u4e2a\u72ec\u7acb\u7684\u7fa4\u96c6\u91cc\u9762\u914d\u7f6e,\u90a3\u662f\u9002\u7528\u7684.\u800c\u6709\u4e00\u4e9b\u60c5\u51b5\u662f,\u67d0\u4e9b\u4efb\u52a1\u8fd0\u884c\u7684\u72b6\u6001\u662f\u9700\u8981\u4f20\u9012\u7ed9\u5176\u4ed6\u673a\u5668\u7684,\u5728\u540c\u4e00\u4e2a\u4efb\u52a1\u4f60\u9700\u8981\u5728\u5176\u4ed6\u673a\u5668\u4e0a\u6267\u884c,\u8fd9\u65f6\u5019\u4f60\u5c31\u8bb8\u591a\u8981\u7528task\u59d4\u6258<\/p>\n

                    \u4f7f\u7528delegate_to\u5173\u952e\u5b57\u4fbf\u53ef\u4ee5\u914d\u7f6e\u4efb\u52a1\u5728\u5176\u4ed6\u673a\u5668\u4e0a\u6267\u884c.\u5176\u4ed6\u6a21\u5757\u8fd8\u662f\u5728\u6240\u6709\u914d\u7f6e\u7684\u7ba1\u7406\u673a\u5668\u4e0a\u8fd0\u884c\u7684,\u5f53\u5230\u4e86\u8fd9\u4e2a\u5173\u952e\u5b57\u7684\u4efb\u52a1\u5c31\u662f\u4f7f\u7528\u59d4\u6258\u7684\u673a\u5668\u4e0a\u8fd0\u884c.\u800cfacts\u8fd8\u662f\u9002\u7528\u4e8e\u5f53\u524d\u7684host,\u4e0b\u9762\u6211\u4eec\u6f14\u793a\u4e00\u4e2a\u4f8b\u5b50,\u4f7f\u7528get_url\u6a21\u5757\u53bb\u4e0b\u8f7d\u4e00\u4e2aweb\u96c6\u7fa4\u7684\u914d\u7f6e<\/p>\n

                      \n
                    1. —<\/span><\/li>\n
                    2. –<\/span> name<\/span>:<\/span> Fetch<\/span> configuration <\/span>from<\/span> all webservers<\/span><\/li>\n
                    3. hosts<\/span>:<\/span> webservers<\/span><\/li>\n
                    4. tasks<\/span>:<\/span><\/li>\n
                    5. –<\/span> name<\/span>:<\/span> Get<\/span> config<\/span><\/li>\n
                    6. get_url<\/span>:<\/span> dest<\/span>=<\/span>configs<\/span>\/{{<\/span> ansible_hostname <\/span>}}<\/span> force<\/span>=<\/span>yes url<\/span>=<\/span>http<\/span>:\/\/{{<\/span> ansible_hostname <\/span>}}\/<\/span>diagnostic<\/span>\/<\/span>config<\/span><\/li>\n
                    7. delegate_to<\/span>:<\/span> localhost<\/span><\/li>\n<\/ol>\n

                      \u5982\u679c\u9700\u8981\u59d4\u6258loaclhost\u6267\u884c\u4efb\u52a1,\u8fd9\u91cc\u63d0\u4f9b\u4e00\u4e2a\u5feb\u6377\u7684\u65b9\u5f0f,\u53ea\u8981\u4f7f\u7528local_action\u4f5c\u4e3atask\u7684key\u4fbf\u884c.\u6211\u4eec\u5c1d\u8bd5\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u6765\u914d\u7f6e\u4e0a\u9762\u7684\u4f8b\u5b50,\u4f1a\u66f4\u52a0\u7b80\u6d01.<\/p>\n

                        \n
                      1. —<\/span> #1<\/span><\/li>\n
                      2. –<\/span> name<\/span>:<\/span> Fetch<\/span> configuration <\/span>from<\/span> all webservers <\/span>#2<\/span><\/li>\n
                      3. hosts<\/span>:<\/span> webservers <\/span>#3<\/span><\/li>\n
                      4. tasks<\/span>:<\/span> #4<\/span><\/li>\n
                      5. –<\/span> name<\/span>:<\/span> Get<\/span> config<\/span><\/li>\n
                      6. local_action<\/span>:<\/span> get_url dest<\/span>=<\/span>configs<\/span>\/{{<\/span> ansible_hostname <\/span>}}.<\/span>cfg url<\/span>=<\/span>http<\/span>:\/\/{{<\/span> ansible_hostname <\/span>}}\/<\/span>diagnostic<\/span>\/<\/span>config<\/span><\/li>\n<\/ol>\n

                        \u59d4\u6258\u4e0d\u9650\u4e8elocalhost,\u53ef\u4ee5\u5728\u4f60\u7684inventory\u91cc\u9762\u7684\u4efb\u4f55host.\u4e0b\u5217\u4e00\u4e9b\u573a\u666f\u9002\u7528\u4f7f\u7528\u59d4\u6258<\/p>\n

                          \n
                        1. \u90e8\u7f72\u4e4b\u524d\u4f60\u5e0c\u671b\u4ece\u8d1f\u8f7d\u5747\u8861\u91cc\u9762\u628ahost\u79fb\u9664<\/li>\n
                        2. \u66f4\u6539\u4f60\u7684server\u65f6\u5019\u66f4\u6539dns\u7684\u6307\u5411<\/li>\n
                        3. \u521b\u5efa\u4e00\u4e2aiSCSI\u5377\u5b58\u50a8\u8bbe\u5907<\/li>\n
                        4. \u4f7f\u7528\u4e00\u4e2a\u5916\u90e8\u670d\u52a1\u5668\u53bb\u68c0\u6d4b\u4e00\u4e0b\u670d\u52a1<\/li>\n<\/ol>\n

                          \u989d\u5916\u7684\u53d8\u91cf<\/h3>\n

                          \u5927\u5bb6\u5e94\u8be5\u5728\u4e4b\u524d\u7684\u7ae0\u8282\u7684\u4f8b\u5b50\u91cc\u9762\u6709\u770b\u5230group_names\u8fd9\u4e2a\u53d8\u91cf.\u8fd9\u4e2a\u662fansible\u63d0\u4f9b\u7684\u4e00\u4e2a\u5f88\u795e\u5947\u53d8\u91cf.\u76f4\u81f3\u5199\u672c\u4e66\u7684\u65f6\u5019,\u67097\u4e2a\u8fd9\u6837\u7684\u53d8\u91cf,\u6211\u4f1a\u5728\u4e0b\u9762\u7684\u7ae0\u8282\u4ecb\u7ecd<\/p>\n

                          a.hostvars\u53d8\u91cf<\/h4>\n

                          hostvars\u5141\u8bb8\u4f60\u5728\u5f53\u524d\u7684\u4efb\u52a1\u4e2d\u5e94\u7528\u6240\u6709host\u7684\u53d8\u91cf.\u5f53setup\u6a21\u5757\u6ca1\u6709\u8fd0\u884c\u7684\u65f6\u5019,\u53ea\u6709\u8fd9\u4e9b\u53d8\u91cf\u5c06\u662f\u53ef\u7528.\u4f8b\u5982\u4f60\u914d\u7f6e ${hostvars.hostname.fact}\u53ef\u4ee5\u8bbf\u95ee\u5176\u4ed6\u590d\u6742\u7684\u53d8\u91cf.\u4f8b\u5982\u4f60\u53ef\u4ee5\u914d\u7f6e${hostvars.ns1.ansible_ distribution}\u5f97\u5230ns1\u8fd9\u4e2aserver\u7684linux\u53d1\u578b\u7248\u672c.<\/p>\n

                          \u4e0b\u9762\u7684\u4f8b\u5b50\u8bbe\u7f6e\u4e86\u4e00\u4e2adns_master\u53d8\u91cf,\u8fd9\u662fns1 server\u7684ip.\u7136\u540e\u8fd9\u4e2a\u53d8\u91cf\u80fd\u591f\u5728\u6240\u6709\u673a\u5668\u4e0a\u8c03\u7528<\/p>\n

                            \n
                          1. —<\/span><\/li>\n
                          2. –<\/span> name<\/span>:<\/span> Setup<\/span> DNS <\/span>Servers<\/span><\/li>\n
                          3. hosts<\/span>:<\/span> allnameservers<\/span><\/li>\n
                          4. tasks<\/span>:<\/span><\/li>\n
                          5. –<\/span> name<\/span>:<\/span> Install<\/span> BIND<\/span><\/li>\n
                          6. yum<\/span>:<\/span> name<\/span>=<\/span>named state<\/span>=<\/span>installed<\/span><\/li>\n
                          7. –<\/span> name<\/span>:<\/span> Setup<\/span> Slaves<\/span> #7<\/span><\/li>\n
                          8. hosts<\/span>:<\/span> slavenamesservers <\/span>#8<\/span><\/li>\n
                          9. tasks<\/span>:<\/span> #9<\/span><\/li>\n
                          10. –<\/span> name<\/span>:<\/span> Get<\/span> the masters IP<\/span><\/li>\n
                          11. set_fact<\/span>:<\/span> dns_master<\/span>=<\/span>“{{ hostvars.ns1.ansible_default_ipv4.address }}”<\/span><\/li>\n
                          12. –<\/span> name<\/span>:<\/span> Configure<\/span> BIND<\/span><\/li>\n
                          13. template<\/span>:<\/span> dest<\/span>=\/<\/span>etc<\/span>\/<\/span>named<\/span>.<\/span>conf src<\/span>\/<\/span>templates<\/span>\/<\/span>named<\/span>.<\/span>conf<\/span>.<\/span>j2<\/span><\/li>\n<\/ol>\n

                            b.groups\u53d8\u91cf<\/h4>\n

                            groups\u53d8\u91cf\u662finventory\u91cc\u9762\u7684group\u5206\u7ec4\u5217\u8868.\u8fd9\u4e2a\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177,\u80fd\u591f\u8ba9\u4f60\u8fed\u4ee3\u4f60\u914d\u7f6e\u7684\u6240\u6709\u7684hosts.\u770b\u4e0b\u9762\u7684\u4f8b\u5b50.<\/p>\n

                              \n
                            1. —<\/span><\/li>\n
                            2. –<\/span> name<\/span>:<\/span> Configure<\/span> the database<\/span><\/li>\n
                            3. hosts<\/span>:<\/span> dbservers<\/span><\/li>\n
                            4. user<\/span>:<\/span> root<\/span><\/li>\n
                            5. tasks<\/span>:<\/span><\/li>\n
                            6. –<\/span> name<\/span>:<\/span> Install<\/span> mysql<\/span><\/li>\n
                            7. yum<\/span>:<\/span> name<\/span>={{<\/span> item <\/span>}}<\/span> state<\/span>=<\/span>installed<\/span><\/li>\n
                            8. with_items<\/span>:<\/span><\/li>\n
                            9. –<\/span> mysql<\/span>–<\/span>server<\/span><\/li>\n
                            10. –<\/span> MySQL<\/span>–<\/span>python<\/span><\/li>\n
                            11. –<\/span> name<\/span>:<\/span> Start<\/span> mysql<\/span><\/li>\n
                            12. service<\/span>:<\/span> name<\/span>=<\/span>mysqld state<\/span>=<\/span>started enabled<\/span>=<\/span>true<\/span><\/li>\n
                            13. –<\/span> name<\/span>:<\/span> Create<\/span> a user <\/span>for<\/span> all app servers<\/span><\/li>\n
                            14. with_items<\/span>:<\/span> groups<\/span>.<\/span>appservers<\/span><\/li>\n
                            15. mysql_user<\/span>:<\/span> name<\/span>=<\/span>kate password<\/span>=<\/span>test host<\/span>={{<\/span> hostvars<\/span>[<\/span>item<\/span>].<\/span>ansible_eth0<\/span>.<\/span>ipv4<\/span>.<\/span>address <\/span>}}<\/span> state<\/span>=<\/span>present<\/span><\/li>\n<\/ol>\n

                              groups\u53d8\u91cf\u5b9e\u9645\u4e0d\u662f\u4f60\u7684hosts\u53d8\u91cf\u7684\u5217\u8868.\u5b83\u53ea\u662f\u4f60hosts\u7684name\u7684\u5217\u8868.\u5982\u679c\u4f60\u9700\u8981\u8c03\u7528host\u91cc\u9762\u7684\u53d8\u91cf\u8fd8\u9700\u8981\u914d\u5408hostvars\u4f7f\u7528<\/p>\n

                              \u4e0b\u9762\u7684\u4f8b\u5b50\u914d\u7f6e\u521b\u5efaknown_hosts\u6587\u4ef6<\/p>\n

                              playbook\u914d\u7f6e<\/p>\n

                                \n
                              1. —<\/span><\/li>\n
                              2. hosts<\/span>:<\/span> all<\/span><\/li>\n
                              3. tasks<\/span>:<\/span><\/li>\n
                              4. –<\/span> name<\/span>:<\/span> Setup<\/span> known hosts<\/span><\/li>\n
                              5. hosts<\/span>:<\/span> all<\/span><\/li>\n
                              6. tasks<\/span>:<\/span><\/li>\n
                              7. –<\/span> name<\/span>:<\/span> Create<\/span> known_hosts<\/span><\/li>\n
                              8. template<\/span>:<\/span> src<\/span>=<\/span>templates<\/span>\/<\/span>known_hosts<\/span>.<\/span>j2 dest<\/span>=\/<\/span>etc<\/span>\/<\/span>ssh<\/span>\/<\/span>ssh_known_hosts owner<\/span>=<\/span>root group<\/span>=<\/span>root mode<\/span>=<\/span>0644<\/span><\/li>\n<\/ol>\n

                                template\u6a21\u677f<\/p>\n

                                  \n
                                1. {%<\/span> for<\/span> host <\/span>in<\/span> groups<\/span>[<\/span>‘all’<\/span>]<\/span> %}<\/span><\/li>\n
                                2. {{<\/span> hostvars<\/span>[<\/span>host<\/span>][<\/span>‘ansible_hostname’<\/span>]<\/span> }}<\/span><\/li>\n
                                3. {{<\/span> hostvars<\/span>[<\/span>host<\/span>][<\/span>‘ansible_ssh_host_key_rsa_public’<\/span>]<\/span> }}<\/span><\/li>\n
                                4. {%<\/span> endfor <\/span>%}<\/span><\/li>\n<\/ol>\n

                                  c.group_names\u53d8\u91cf<\/h4>\n

                                  group_names\u662f\u5f53\u524dhost\u6240\u5c5e\u7684\u7ec4\u7684\u5217\u8868.\u8fd9\u53ef\u4ee5\u7528\u4e8e\u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\u8c03\u7528\u6210\u5458\u7684group\u5173\u7cfb,\u6216\u8005\u7528\u4e8edebugging.\u901a\u5e38\u6765\u8bf4\u8fd9\u53d8\u91cf\u5927\u90e8\u5206\u7528\u4e8e\u8df3\u8fc7\u4e00\u4e9btask\u6216\u8005\u5728\u6a21\u677f\u4e2d\u7528\u4e8e\u6761\u4ef6\u8bed\u53e5\u7684\u53d8\u91cf.\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d,\u5982\u679c\u4f60\u6709\u4e24\u5957sshd\u7684\u914d\u7f6e\u6587\u4ef6,\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u6027\u66f4\u52a0\u4e25\u8c28\u7684,\u4e00\u4e2a\u5b89\u5168\u6027\u666e\u901a\u7684.\u7136\u540e\u6211\u4eec\u6839\u636egroup\u540d\u6765\u914d\u5206host\u5230\u54ea\u4e2asshd\u914d\u7f6e\u4e0b.<\/p>\n

                                    \n
                                  1. —<\/span><\/li>\n
                                  2. –<\/span> name<\/span>:<\/span> Setup<\/span> SSH<\/span><\/li>\n
                                  3. hosts<\/span>:<\/span> sshservers<\/span><\/li>\n
                                  4. tasks<\/span>:<\/span><\/li>\n
                                  5. –<\/span> name<\/span>:<\/span> For<\/span> secure machines<\/span><\/li>\n
                                  6. set_fact<\/span>:<\/span> sshconfig<\/span>=<\/span>files<\/span>\/<\/span>ssh<\/span>\/<\/span>sshd_config_secure<\/span><\/li>\n
                                  7. when<\/span>:<\/span> “‘secure’ in group_names”<\/span><\/li>\n
                                  8. –<\/span> name<\/span>:<\/span> For<\/span> non<\/span>–<\/span>secure machines<\/span><\/li>\n
                                  9. set_fact<\/span>:<\/span> sshconfig<\/span>=<\/span>files<\/span>\/<\/span>ssh<\/span>\/<\/span>sshd_config_default<\/span><\/li>\n
                                  10. when<\/span>:<\/span> “‘secure’ not in group_names”<\/span><\/li>\n
                                  11. –<\/span> name<\/span>:<\/span> Copy<\/span> over the config<\/span><\/li>\n
                                  12. copy<\/span>:<\/span> src<\/span>={{<\/span> sshconfig <\/span>}}<\/span> dest<\/span>=\/<\/span>tmp<\/span>\/<\/span>sshd_config<\/span><\/li>\n<\/ol>\n

                                    d.inventory_hostname\u53d8\u91cf<\/h4>\n

                                    inventory_hostname\u662f\u673a\u5668\u7684hostname,\u5f53\u4f60\u6ca1\u6709\u4f7f\u7528setup\u6a21\u5757,\u6216\u8005\u7531\u4e8e\u5404\u79cd\u539f\u56e0\u5bfc\u81f4setup\u7684\u53d8\u91cf\u662f\u9519\u8bef\u7684,\u4f60\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u8fd9\u4e2a\u53d8\u91cf.\u6b64\u53d8\u91cf\u53ef\u4ee5\u5e2e\u52a9\u4f60\u521d\u59cb\u5316\u4f60\u7684\u673a\u5668\u548c\u6539\u53d8hostname<\/p>\n

                                    e.inventory_hostname_short<\/h4>\n

                                    inventory_hostname_short\u7c7b\u4f3c\u4e0e\u4e0a\u9762\u7684inventory_hostname\u53d8\u91cf,\u53ea\u662f\u5b83\u662f\u622a\u53d6\u7b2c\u4e00\u4e2a\u53e5\u70b9\u7684\u524d\u9762\u7684\u5b57\u7b26,\u4f8b\u5982hostname\u662fhost.example.com,\u5c31\u4f1a\u53ea\u622a\u53d6\u5230host<\/p>\n

                                    f.inventory_dir<\/h4>\n

                                    \u6b64\u53d8\u91cf\u662finventory\u6587\u4ef6\u7684\u8def\u5f84,\u5305\u62ec\u76ee\u5f55\u4e0e\u6587\u4ef6\u540d<\/p>\n

                                    g.inventory_file<\/h4>\n

                                    \u7c7b\u4f3c\u4e0a\u9762\u7684\u53d8\u91cf,\u53ea\u662f\u5b83\u53ea\u6709\u6587\u4ef6\u540d<\/p>\n

                                    \u4f7f\u7528\u53d8\u91cf\u6765\u67e5\u627e\u6587\u4ef6<\/h3>\n

                                    \u6240\u6709\u7684\u6a21\u5757\u90fd\u53ef\u4ee5\u628a\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u7684\u4e00\u90e8\u5206,\u901a\u8fc7\u4f7f\u7528\u201d{{}}\u201d\u7b26\u53f7\u6269\u8d77\u6765.\u8b6c\u5982\u53d8\u91cftest\u5c31\u662f\u201d{{ test }}\u201d.\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u52a0\u8f7d\u7279\u5b9a\u7684\u6587\u4ef6.\u4f8b\u5982,\u4f60\u5e0c\u671b\u6839\u636e\u4e0d\u540c\u7684\u673a\u5668architecture\u9009\u62e9\u4e0d\u540c\u7684NRPE(nagios\u7684\u5ba2\u6237\u7aef)\u914d\u7f6e\u6587\u4ef6,\u90a3\u53ef\u4ee5\u50cf\u8fd9\u6837\u7684\u914d\u7f6e<\/p>\n

                                      \n
                                    1. —<\/span><\/li>\n
                                    2. –<\/span> name<\/span>:<\/span> Configure<\/span> NRPE <\/span>for<\/span> the right architecture<\/span><\/li>\n
                                    3. hosts<\/span>:<\/span> ansibletest<\/span><\/li>\n
                                    4. user<\/span>:<\/span> root<\/span><\/li>\n
                                    5. tasks<\/span>:<\/span><\/li>\n
                                    6. –<\/span> name<\/span>:<\/span> Copy<\/span> in<\/span> the correct NRPE config file<\/span><\/li>\n
                                    7. copy<\/span>:<\/span> src<\/span>=<\/span>files<\/span>\/<\/span>nrpe<\/span>.{{<\/span> ansible_architecture <\/span>}}.<\/span>conf dest<\/span>=\/<\/span>etc<\/span>\/<\/span>nagios<\/span>\/<\/span>nrpe<\/span>.<\/span>cfg<\/span><\/li>\n<\/ol>\n

                                      \u5728copy\u548ctempalate\u6a21\u5757\u91cc\u9762,\u4f60\u80fd\u591f\u4f7f\u7528ansible\u53bb\u67e5\u627e\u4e00\u7ec4\u7684\u6587\u4ef6.\u7136\u540e\u9ed8\u8ba4\u4f7f\u7528\u7b2c\u4e00\u4e2a\u6587\u4ef6.\u8fd9\u80fd\u591f\u8ba9\u4f60\u8fbe\u5230\u6548\u679c\u662f,\u5f53\u7b2c\u4e00\u4e2a\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6,\u4f1a\u67e5\u627e\u7b2c\u4e8c\u4e2a\u6587\u4ef6,\u5982\u6b64\u7c7b\u63a8\u77e5\u9053\u6700\u540e\u4e00\u4e2a\u6587\u4ef6\u8fd8\u4e0d\u5b58\u5728\u5c31\u62a5fail.\u4f7f\u7528first_available_file\u8fd9\u4e2a\u5173\u952e\u5b57\u4fbf\u53ef\u4ee5\u5230\u4e0a\u8ff0\u6548\u679c.<\/p>\n

                                        \n
                                      1. —<\/span><\/li>\n
                                      2. –<\/span> name<\/span>:<\/span> Install<\/span> an <\/span>Apache<\/span> config file<\/span><\/li>\n
                                      3. hosts<\/span>:<\/span> ansibletest<\/span><\/li>\n
                                      4. user<\/span>:<\/span> root<\/span><\/li>\n
                                      5. tasks<\/span>:<\/span><\/li>\n
                                      6. –<\/span> name<\/span>:<\/span> Get<\/span> the best match <\/span>for<\/span> the machine<\/span><\/li>\n
                                      7. copy<\/span>:<\/span> dest<\/span>=\/<\/span>etc<\/span>\/<\/span>apache<\/span>.<\/span>conf src<\/span>={{<\/span> item <\/span>}}<\/span><\/li>\n
                                      8. first_available_file<\/span>:<\/span><\/li>\n
                                      9. –<\/span> files<\/span>\/<\/span>apache<\/span>\/{{<\/span> ansible_os_family <\/span>}}-{{<\/span> ansible_architecture <\/span>}}.<\/span>cfg<\/span><\/li>\n
                                      10. –<\/span> files<\/span>\/<\/span>apache<\/span>\/<\/span>default<\/span>-{{<\/span> ansible_architecture <\/span>}}.<\/span>cfg<\/span><\/li>\n
                                      11. –<\/span> files<\/span>\/<\/span>apache<\/span>\/<\/span>default<\/span>.<\/span>cfg<\/span><\/li>\n<\/ol>\n

                                        \u73af\u5883\u53d8\u91cf<\/h3>\n

                                        unix\u547d\u4ee4\u7ecf\u5e38\u9700\u8981\u4f9d\u8d56\u73af\u5883\u53d8\u91cf,\u4f8b\u5982C makefiles,installers,\u548caws cli\u5de5\u5177.\u5f88\u5e78\u8fd0,ansible\u5f88\u5bb9\u6613\u5b9e\u73b0,\u8b6c\u5982\u4f60\u73b0\u5728\u9700\u8981\u63a7\u5236\u8fdc\u7a0b\u7684\u673a\u5668\u4e00\u4e2a\u6587\u4ef6\u5230s3,\u90a3\u4f60\u8bb8\u591a\u8981\u914d\u7f6eaws\u7684access key.\u4e0b\u9762\u6211\u4eec\u7684\u4f8b\u5b50\u6f14\u793a,\u5b89\u88c5pip,\u7528pip\u5b89\u88c5aws cli,\u5e76\u4e14\u901a\u8fc7cli\u4e0a\u4f20\u6587\u4ef6\u5230s3<\/p>\n

                                          \n
                                        1. —<\/span><\/li>\n
                                        2. –<\/span> name<\/span>:<\/span> Upload<\/span> a remote file via S3<\/span><\/li>\n
                                        3. hosts<\/span>:<\/span> ansibletest<\/span><\/li>\n
                                        4. user<\/span>:<\/span> root<\/span><\/li>\n
                                        5. tasks<\/span>:<\/span><\/li>\n
                                        6. –<\/span> name<\/span>:<\/span> Setup<\/span> EPEL<\/span><\/li>\n
                                        7. command<\/span>:<\/span> rpm <\/span>–<\/span>ivh http<\/span>:\/\/<\/span>download<\/span>.<\/span>fedoraproject<\/span>.<\/span>org<\/span>\/<\/span>pub<\/span>\/<\/span>epel<\/span>\/<\/span>6<\/span>\/<\/span>i386<\/span>\/<\/span>epel<\/span>–<\/span>release<\/span>–<\/span>6<\/span>–<\/span>8.noarch<\/span>.<\/span>rpm creates<\/span>=\/<\/span>etc<\/span>\/<\/span>yum<\/span>.<\/span>repos<\/span>.<\/span>d<\/span>\/<\/span>epel<\/span>.<\/span>repo<\/span><\/li>\n
                                        8. –<\/span> name<\/span>:<\/span> Install<\/span> pip<\/span><\/li>\n
                                        9. yum<\/span>:<\/span> name<\/span>=<\/span>python<\/span>–<\/span>pip state<\/span>=<\/span>installed<\/span><\/li>\n
                                        10. –<\/span> name<\/span>:<\/span> Install<\/span> the AWS tools<\/span><\/li>\n
                                        11. pip<\/span>:<\/span> name<\/span>=<\/span>awscli state<\/span>=<\/span>present<\/span><\/li>\n
                                        12. –<\/span> name<\/span>:<\/span> Upload<\/span> the file<\/span><\/li>\n
                                        13. shell<\/span>:<\/span> aws s3 put<\/span>–<\/span>object <\/span>—<\/span>bucket<\/span>=<\/span>my<\/span>–<\/span>test<\/span>–<\/span>bucket <\/span>—<\/span>key<\/span>={{<\/span> ansible_hostname <\/span>}}\/<\/span>fstab <\/span>—<\/span>body<\/span>=\/<\/span>etc<\/span>\/<\/span>fstab <\/span>—<\/span>region<\/span>=<\/span>eu<\/span>–<\/span>west<\/span>–<\/span>1<\/span><\/li>\n
                                        14. environment<\/span>:<\/span><\/li>\n
                                        15. AWS_ACCESS_KEY_ID<\/span>:<\/span> XXXXXXXXXXXXXXXXXXX<\/span><\/li>\n
                                        16. AWS_SECRET_ACCESS_KEY<\/span>:<\/span> XXXXXXXXXXXXXXXXXXXXX<\/span><\/li>\n<\/ol>\n

                                          \u4e00\u4e9b\u6a21\u5757\u4f8b\u5982get_url,yum,\u548capt\u662f\u9700\u8981\u4f7f\u7528\u73af\u5883\u53d8\u91cf\u914d\u7f6eproxy\u7684.\u4e0b\u9762\u4e00\u4e9b\u573a\u666f\u4e5f\u662f\u9700\u8981\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u7684<\/p>\n

                                            \n
                                          1. \u8fd0\u884capplication installers<\/li>\n
                                          2. \u5f53\u8fd0\u884cshell\u7684\u65f6\u5019\u9700\u8981\u6dfb\u52a0\u4e00\u4e9b\u989d\u5916\u7684\u7684\u53d8\u91cf\u5728path\u91cc<\/li>\n
                                          3. \u9700\u8981load\u7684\u4e00\u4e9b\u5e93\u4e0d\u5728\u7cfb\u7edf\u7684library\u8def\u5f84\u4e2d<\/li>\n
                                          4. \u5728\u8fd0\u884c\u6a21\u5757\u65f6\u4f7f\u7528LD_PRELOAD hack<\/li>\n<\/ol>\n

                                            External data lookups<\/h3>\n

                                            ansible\u57280.9\u7248\u672c\u5f00\u59cb\u5f15\u8fdb\u4e86lookup\u63d2\u4ef6,\u8fd9\u4e9b\u63d2\u4ef6\u8fd0\u884cansible\u5728\u5916\u56f4\u83b7\u53d6\u6570\u636e.ansible\u5df2\u7ecf\u63d0\u4f9b\u4e86\u51e0\u4e2a\u63d2\u4ef6,\u4f46\u5b83\u8fd8\u662f\u652f\u6301\u81ea\u5df1\u7f16\u5199\u63d2\u4ef6.\u8fd9\u771f\u7684\u8ba9\u4f60\u4f7f\u7528ansible\u914d\u7f6e\u66f4\u52a0\u4f38\u7f29\u81ea\u5982<\/p>\n

                                            lookup\u662f\u5728master\u673a\u5668\u8fd0\u884c\u7684python\u7a0b\u5e8f.\u4e0b\u9762\u4e00\u4e2a\u4f8b\u5b50\u662f\u4f7f\u7528lookup\u63d2\u4ef6\u83b7\u53d6\u73af\u5883\u53d8\u91cf\u91cc\u9762\u7684http_proxy,\u7136\u540e\u914d\u7f6e\u5728\u8fdc\u7aef\u673a\u5668,\u786e\u4fdd\u8fdc\u7aef\u673a\u5668\u4f7f\u7528\u76f8\u540c\u7684proxy\u4e0b\u8f7d\u6587\u4ef6<\/p>\n

                                              \n
                                            1. —<\/span> #1<\/span><\/li>\n
                                            2. –<\/span> name<\/span>:<\/span> Downloads<\/span> a file using the same proxy <\/span>as<\/span> the controlling machine<\/span><\/li>\n
                                            3. hosts<\/span>:<\/span> all<\/span><\/li>\n
                                            4. tasks<\/span>:<\/span><\/li>\n
                                            5. –<\/span> name<\/span>:<\/span> Download<\/span> file<\/span><\/li>\n
                                            6. get_url<\/span>:<\/span> dest<\/span>=\/<\/span>var<\/span>\/<\/span>tmp<\/span>\/<\/span>file<\/span>.<\/span>tar<\/span>.<\/span>gz url<\/span>=<\/span>http<\/span>:\/\/<\/span>server<\/span>\/<\/span>file<\/span>.<\/span>tar<\/span>.<\/span>gz<\/span><\/li>\n
                                            7. environment<\/span>:<\/span><\/li>\n
                                            8. http_proxy<\/span>:<\/span> “{{ lookup(‘env’, ‘http_proxy’) }}”<\/span><\/li>\n<\/ol>\n

                                              \u4f7f\u7528with_*\u80fd\u591f\u4f7f\u7528lookup\u63d2\u4ef6\u8fed\u4ee3\u51fa\u7279\u522b\u7684\u4e1c\u897f.\u60a8\u53ef\u4ee5\u4f7f\u7528\u4efb\u4f55\u8fd9\u6837\u7684\u63d2\u4ef6,\u4f46\u6700\u597d\u662f\u8fd4\u56de\u4e00\u4e2a\u5217\u8868.\u4e0b\u9762\u7684\u4f8b\u5b50\u8ba9\u4f60\u81ea\u52a8\u6ce8\u518cwebapp,\u4f7f\u7528\u4e0b\u9762\u7684\u4f8b\u5b50\u4f1a\u521b\u5efa\u51fa\u865a\u62df\u673a\u5e76\u914d\u7f6e\u5b83<\/p>\n

                                                \n
                                              1. —<\/span><\/li>\n
                                              2. –<\/span> name<\/span>:<\/span> Registers<\/span> the app server farm<\/span><\/li>\n
                                              3. hosts<\/span>:<\/span> localhost<\/span><\/li>\n
                                              4. connection<\/span>:<\/span> local<\/span><\/li>\n
                                              5. vars<\/span>:<\/span><\/li>\n
                                              6. hostcount<\/span>:<\/span> 5<\/span><\/li>\n
                                              7. tasks<\/span>:<\/span><\/li>\n
                                              8. –<\/span> name<\/span>:<\/span> Register<\/span> the webapp farm<\/span><\/li>\n
                                              9. local_action<\/span>:<\/span> add_host name<\/span>={{<\/span> item <\/span>}}<\/span> groupname<\/span>=<\/span>webapp<\/span><\/li>\n
                                              10. with_sequence<\/span>:<\/span> start<\/span>=<\/span>1<\/span> end<\/span>={{<\/span> hostcount <\/span>}}<\/span> format<\/span>=<\/span>webapp<\/span>%<\/span>02x<\/span><\/li>\n<\/ol>\n

                                                \u5728\u4e0b\u9762\u7684\u573a\u666f,lookup\u975e\u5e38\u6709\u7528<\/p>\n

                                                  \n
                                                1. \u590d\u5236\u6574\u4e2a\u76ee\u5f55\u7684apache\u914d\u7f6e\u5230conf.d<\/li>\n
                                                2. \u4f7f\u7528\u73af\u5883\u53d8\u91cf\u8c03\u6574playbook\u7684\u8fd0\u884c<\/li>\n
                                                3. \u4eceDNS TXT\u8bb0\u5f55\u4e2d\u83b7\u53d6\u914d\u7f6e<\/li>\n
                                                4. \u83b7\u53d6\u4e00\u4e2a\u547d\u4ee4\u7684\u8f93\u51fa\u5230\u4e00\u4e2a\u53d8\u91cf\u4e2d<\/li>\n<\/ol>\n

                                                  \u4fdd\u5b58\u7ed3\u679c<\/h3>\n

                                                  \u51e0\u4e4e\u6240\u6709\u7684\u6a21\u5757\u90fd\u662f\u4f1aoutputs\u4e00\u4e9b\u4e1c\u897f,\u751a\u81f3debug\u6a21\u5757\u4e5f\u4f1a.\u5927\u591a\u6570\u6211\u4eec\u4f1a\u4f7f\u7528\u7684\u7ed3\u679c\u53d8\u91cf\u662fchanged.\u8fd9\u4e2achanged\u53d8\u91cf\u51b3\u5b9a\u4e86\u662f\u5426\u8981\u76f4\u63a5handlers\u548c\u8f93\u51fa\u7684\u989c\u8272\u662f\u4ec0\u4e48.\u7136\u800c,\u7ed3\u679c\u53d8\u91cf\u8fd8\u6709\u5176\u4ed6\u7684\u7528\u9014,\u8b6c\u5982\u6211\u9700\u8981\u4fdd\u5b58\u6211\u7684\u7ed3\u679c\u53d8\u91cf,\u7136\u540e\u548b\u6211\u7684playbook\u7684\u5176\u4ed6\u5730\u65b9\u7ed9\u4f7f\u7528.\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\/tmp\u76ee\u5f55,\u7136\u540e\u5728\u540e\u9762\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\/tmp\/subtmp\u4f7f\u7528\u548c\u524d\u9762\u76ee\u5f55\u4e00\u6837\u7684\u6743\u9650<\/p>\n

                                                    \n
                                                  1. —<\/span><\/li>\n
                                                  2. –<\/span> name<\/span>:<\/span> Using<\/span> register<\/span><\/li>\n
                                                  3. hosts<\/span>:<\/span> ansibletest<\/span><\/li>\n
                                                  4. user<\/span>:<\/span> root<\/span><\/li>\n
                                                  5. tasks<\/span>:<\/span><\/li>\n
                                                  6. –<\/span> name<\/span>:<\/span> Get<\/span> \/<\/span>tmp info<\/span><\/li>\n
                                                  7. file<\/span>:<\/span> dest<\/span>=\/<\/span>tmp state<\/span>=<\/span>directory<\/span><\/li>\n
                                                  8. register<\/span>:<\/span> tmp<\/span><\/li>\n
                                                  9. –<\/span> name<\/span>:<\/span> Set<\/span> mode on <\/span>\/<\/span>var<\/span>\/<\/span>tmp<\/span><\/li>\n
                                                  10. file<\/span>:<\/span> dest<\/span>=\/<\/span>tmp<\/span>\/<\/span>subtmp mode<\/span>={{<\/span> tmp<\/span>.<\/span>mode <\/span>}}<\/span> state<\/span>=<\/span>directory<\/span><\/li>\n<\/ol>\n

                                                    \u4e00\u4e9b\u6a21\u5757,\u4f8b\u5982\u4e0a\u9762\u7684file\u6a21\u5757,\u662f\u80fd\u591f\u83b7\u53d6\u5230\u4e00\u4e9b\u7b80\u5355\u7684\u4fe1\u606f.\u7ed3\u5408register\u8fd9\u4e2a\u529f\u80fd,\u53ef\u4ee5\u8ba9\u4f60\u5728playbook\u91cc\u9762\u68c0\u67e5\u4f60\u7684\u73af\u5883\u548c\u8ba1\u7b97\u5982\u4f55\u8fdb\u884c<\/p>\n

                                                    register\u5bf9\u4e8e\u6570\u591a\u573a\u666f\u662f\u5f88\u6709\u7528\u7684<\/p>\n

                                                      \n
                                                    1. \u5728\u4e00\u53f0\u8fdc\u7aef\u7684\u670d\u52a1\u5668\u83b7\u53d6\u4e00\u4e2a\u76ee\u5f55\u4e0b\u7684\u4e00\u5217\u8868\u7684\u6587\u4ef6,\u7136\u540e\u4e0b\u8f7d\u8fd9\u4e9b\u6587\u4ef6<\/li>\n
                                                    2. \u5728handler\u6267\u884c\u4e4b\u524d,\u53d1\u73b0\u524d\u9762\u4e00\u4e2atask\u53d1\u751f\u4e86changed,\u7136\u540e\u6267\u884c\u4e00\u4e2a\u6307\u5b9a\u7684task<\/li>\n
                                                    3. \u83b7\u53d6\u8fdc\u7aef\u670d\u52a1\u5668\u7684ssh key\u7684\u5185\u5bb9,\u6784\u5efa\u51faknown_hosts\u6587\u4ef6<\/li>\n<\/ol>\n

                                                      debugging playbook<\/h3>\n

                                                      \u6709\u597d\u51e0\u79cd\u65b9\u6cd5\u53bbdebug\u6211\u4eec\u7684playbook.ansible\u6709verbose\u6a21\u5f0f\u548cdebug\u6a21\u5f0f,\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4f8b\u5982fetch\u548cget_url\u6a21\u5757\u6765\u534f\u52a9debug.\u5f53\u4f60\u60f3\u5b66\u4e60\u600e\u6837\u4f7f\u7528\u4e00\u4e9b\u6a21\u5757\u65f6,\u8fd9\u4e9bdebugging\u6280\u672f\u80fd\u591f\u5e2e\u52a9\u4f60.<\/p>\n

                                                      a.debug\u6a21\u5757<\/h4>\n

                                                      debug\u6a21\u5757\u4f7f\u7528\u5f88\u7b80\u5355.\u5b83\u5177\u6709\u4e24\u4e2a\u53c2\u6570,msg\u548cfail.msg\u5c31\u662f\u6253\u5370\u51fa\u6765\u7684\u4fe1\u606f,\u800c\u5f53fail\u53c2\u6570\u8bbe\u7f6e\u4e3ayes\u65f6,\u4f1a\u53d1\u9001\u5931\u8d25\u901a\u77e5\u7ed9ansible,\u7136\u540eansible\u4f1a\u505c\u6b62\u8fd0\u884c\u4efb\u52a1.<\/p>\n

                                                      \u5728\u4e0b\u9762\u7684\u4f8b\u5b50,\u914d\u7f6e\u4e86\u4f7f\u7528debug\u6a21\u5757\u53bb\u663e\u793a\u8fdc\u7aef\u673a\u5668\u6240\u6709\u7684network interface.<\/p>\n

                                                        \n
                                                      1. —<\/span><\/li>\n
                                                      2. –<\/span> name<\/span>:<\/span> Demonstrate<\/span> the debug module<\/span><\/li>\n
                                                      3. hosts<\/span>:<\/span> ansibletest<\/span><\/li>\n
                                                      4. user<\/span>:<\/span> root<\/span><\/li>\n
                                                      5. vars<\/span>:<\/span><\/li>\n
                                                      6. hostcount<\/span>:<\/span> 5<\/span><\/li>\n
                                                      7. tasks<\/span>:<\/span><\/li>\n
                                                      8. –<\/span> name<\/span>:<\/span> Print<\/span> interface<\/span><\/li>\n
                                                      9. debug<\/span>:<\/span> msg<\/span>=<\/span>“{{ item }}”<\/span><\/li>\n
                                                      10. with_items<\/span>:<\/span> ansible_interfaces<\/span><\/li>\n<\/ol>\n

                                                        \u8fd0\u884c\u4e0a\u9762\u7684\u914d\u7f6e\u4f1a\u51fa\u73b0\u8fd9\u6837\u7684\u8f93\u51fa<\/p>\n

                                                          \n
                                                        1. PLAY <\/span>[<\/span>Demonstrate<\/span> the debug module<\/span>]<\/span> *********************************<\/span><\/li>\n
                                                        2. GATHERING FACTS <\/span>*****************************************************<\/span><\/li>\n
                                                        3. ok<\/span>:<\/span> [<\/span>ansibletest<\/span>]<\/span><\/li>\n
                                                        4. TASK<\/span>:<\/span> [<\/span>Print<\/span> IP address<\/span>]<\/span> ********************************************<\/span><\/li>\n
                                                        5. ok<\/span>:<\/span> [<\/span>ansibletest<\/span>]<\/span> =><\/span> (<\/span>item<\/span>=<\/span>lo<\/span>)<\/span> =><\/span> {<\/span>“item”<\/span>:<\/span> “lo”<\/span>,<\/span> “msg”<\/span>:<\/span> “lo”<\/span>}<\/span><\/li>\n
                                                        6. ok<\/span>:<\/span> [<\/span>ansibletest<\/span>]<\/span> =><\/span> (<\/span>item<\/span>=<\/span>eth0<\/span>)<\/span> =><\/span> {<\/span>“item”<\/span>:<\/span> “eth0”<\/span>,<\/span> “msg”<\/span>:<\/span> “eth0”<\/span>}<\/span><\/li>\n
                                                        7. PLAY RECAP <\/span>**********************************************************<\/span><\/li>\n
                                                        8. ansibletest <\/span>:<\/span> ok<\/span>=<\/span>2<\/span> changed<\/span>=<\/span>0<\/span> unreachable<\/span>=<\/span>0<\/span> failed<\/span>=<\/span>0<\/span><\/li>\n<\/ol>\n

                                                          \u5982\u4f60\u8bf4\u89c1,debug\u6a21\u5757\u53ef\u4ee5\u8ba9\u4f60\u5f88\u5bb9\u6613\u770b\u5230\u5728playbook\u8fd0\u884c\u671f\u95f4\u4e00\u4e9b\u53d8\u91cf<\/p>\n

                                                          b.verbose\u6a21\u5f0f<\/h4>\n

                                                          \u53e6\u5916\u7684debug\u9009\u62e9\u662fverbose\u6a21\u5f0f.\u5f53\u8fd0\u884cverbose\u6a21\u5f0f\u65f6,\u4f1a\u6253\u5370\u51fa\u6240\u6709\u6a21\u5757\u8fd0\u884c\u540e\u7684\u53d8\u91cf.\u8fd9\u5bf9\u4e8e\u4f60\u8981\u4f7f\u7528register\u529f\u80fd\u65f6\u5019\u5f88\u91cd\u8981.\u53ea\u9700\u8981\u5728\u6267\u884cplaybook\u547d\u4ee4\u65f6\u52a0\u4e0a\u53c2\u6570\u2013verbose\u4fbf\u53ef\u4ee5.ansible-playbook \u2013verbose playbook.yml<\/p>\n

                                                          c.check\u6a21\u5f0f<\/h4>\n

                                                          \u9664\u4e86verbose\u6a21\u5f0f\u5916,ansible\u8fd8\u63d0\u4f9b\u4e86check\u6a21\u5f0f\u548cdiff\u6a21\u5f0f.\u53ea\u9700\u8981\u6267\u884cplaybook\u65f6\u6dfb\u52a0\u53c2\u6570\u2013check\u548c\u2013diff.check\u6a21\u5f0f\u8fd0\u884c\u65f6,ansible\u4e0d\u4f1a\u771f\u6b63\u63a7\u5236\u8fdc\u7a0b\u673a\u5668\u53d1\u751f\u53d8\u66f4.\u8fd9\u80fd\u591f\u8ba9\u4f60\u83b7\u5f97\u8fd9\u6b21playbook\u4efb\u52a1\u4e2d,\u5c06\u4f1a\u53d1\u751fchanged\u4e8b\u4ef6\u7684\u5217\u8868.<\/p>\n

                                                          \u5f88\u91cd\u8981\u7684\u4e00\u70b9\u662fcheck\u6a21\u5f0f\u4e0d\u662f\u5b8c\u7f8e\u7684.\u6709\u4e00\u4e9b\u6a21\u5757\u662f\u4f1a\u8df3\u8fc7check\u6a21\u5f0f\u7684.\u5c24\u5176\u660e\u663e\u7684\u9650\u5236\u662f\u5728\u8fd0\u884ccommand\u548cshell\u6a21\u5757<\/p>\n

                                                          \u5728diff\u6a21\u5f0f\u4e0b,\u5f53\u6587\u4ef6\u53d1\u73b0\u66f4\u53d8,\u4f1a\u6253\u5370\u51fa\u53d8\u66f4\u6587\u4ef6\u7684\u53d8\u66f4\u90e8\u5206.\u914d\u5408check\u6a21\u5f0f\u4f7f\u7528\u6548\u679c\u66f4\u597d<\/p>\n

                                                          d.pause\u6a21\u5757<\/h4>\n

                                                          \u53e6\u5916\u4e00\u4e2adebug\u6280\u5de7\u662f\u4f7f\u7528pause\u6a21\u5757,\u5b83\u53ef\u4ee5\u8ba9\u4f60\u9700\u8981\u5728\u67d0\u4e2a\u5730\u65b9\u9700\u8981\u68c0\u67e5\u8fdc\u7a0b\u673a\u5668\u7684\u914d\u7f6e\u7684\u65f6\u5019\u6682\u505cplaybook\u7684\u6267\u884c.\u8fd9\u6837\u53ef\u4ee5\u8ba9\u5148\u89c2\u5bdf\u4e00\u4e0b\u8fd0\u884c\u5230\u8fd9\u91cc\u4e3a\u6b62\u7684\u6548\u679c,\u518d\u5224\u65ad\u662f\u5426\u7ee7\u7eed\u8fd0\u884c\u4e0b\u53bb.<\/p>\n

                                                          \u603b\u7ed3<\/h3>\n

                                                          \u5728\u8fd9\u4e2a\u7ae0\u8282\u6211\u4eec\u66f4\u52a0\u6df1\u5165\u63a2\u7d22\u4e86\u7f16\u5199playbook\u7684\u4e00\u4e9b\u7ec6\u8282.\u73b0\u5728\u4f60\u5e94\u8be5\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9bansible\u7684\u7279\u6027.\u4f8b\u5982delegation,looping,conditionals,\u548cfact,registration\u7b49\u7b49,\u8ba9\u4f60\u80fd\u591f\u66f4\u5bb9\u6613\u7684\u7f16\u5199\u548c\u7ef4\u62a4\u4f60\u7684playbook.\u6211\u4eec\u4e5f\u770b\u5230\u4e86\u5982\u4f55\u83b7\u53d6\u5176\u4ed6host\u7684\u4fe1\u606f,\u5982\u4f55\u914d\u7f6e\u73af\u5883\u53d8\u91cf,\u5982\u4f55\u4ece\u5916\u56f4\u83b7\u53d6\u5230\u6570\u636e.\u6700\u540e\u6211\u4eec\u5c55\u793a\u4e86\u4e00\u4e9bdebug\u6280\u5de7,\u8ba9playbook\u80fd\u6309\u4f60\u7684\u9884\u671f\u6765\u6267\u884c.<\/p>\n

                                                          \u4e0b\u4e00\u7ae0\u8282,\u6211\u4eec\u4f1a\u5b66\u4e60\u5982\u4f55\u5728\u5927\u89c4\u6a21\u73af\u5883\u4e2d\u4f7f\u7528ansible,\u4e5f\u4f1a\u8bb2\u5230\u4e00\u4e9b\u65b9\u6cd5\u8ba9\u4f60\u5728\u4e00\u4e9b\u9700\u8981\u8fd0\u884c\u5f88\u4e45\u7684\u4efb\u52a1\u4e2d\u63d0\u9ad8\u4f60\u7684\u6027\u80fd.\u6211\u4eec\u4e5f\u4f1a\u4ecb\u7ecd\u4e00\u4e9b\u7279\u6027\u8ba9\u4f60\u7684playbook\u5982\u4f55\u66f4\u52a0\u53ef\u7ef4\u62a4,\u66f4\u52a0\u89e3\u85d5,\u8ba9\u5b83\u4eec\u6309\u76ee\u7684\u5206\u914d\u5230\u4e0d\u540c\u7684\u5730\u65b9.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                                          \u5e76\u53d1\u8fd0\u884c ansible\u9ed8\u8ba4\u53ea\u4f1a\u521b\u5efa5\u4e2a\u8fdb\u7a0b,\u6240\u4ee5\u4e00\u6b21\u4efb\u52a1\u53ea\u80fd\u540c\u65f6\u63a7\u52365\u53f0\u673a\u5668\u6267\u884c.\u90a3\u5982\u679c\u4f60\u6709\u5927\u91cf\u7684\u673a\u5668\u9700\u8981\u63a7\u5236,\u6216\u8005\u4f60\u5e0c\u671b\u51cf\u5c11\u8fdb\u7a0b\u6570,\u90a3\u4f60\u53ef\u4ee5\u91c7\u53d6\u5f02\u6b65\u6267\u884c.ansible\u7684\u6a21\u5757\u53ef\u4ee5\u628atask\u653e\u8fdb\u540e\u53f0,\u7136\u540e\u8f6e\u8be2\u5b83.\u8fd9\u4f7f\u5f97\u5728\u4e00\u5b9a\u8fdb\u7a0b\u6570\u4e0b\u80fd\u8ba9\u5927\u91cf\u9700\u8981\u7684\u673a\u5668\u540c\u65f6\u8fd0\u4f5c\u8d77\u6765. \u4f7f\u7528async\u548cpoll\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u4fbf\u53ef\u4ee5\u5e76\u884c\u8fd0\u884c\u4e00\u4e2a\u4efb\u52a1. async\u8fd9\u4e2a\u5173\u952e\u5b57\u89e6\u53d1ansible\u5e76\u884c\u8fd0\u4f5c\u4efb\u52a1,\u800casync\u7684\u503c\u662fansible\u7b49\u5f85\u8fd0\u884c\u8fd9\u4e2a\u4efb\u52a1\u7684\u6700\u5927\u8d85\u65f6\u503c,\u800cpoll\u5c31\u662fansible\u68c0\u67e5\u8fd9\u4e2a\u4efb\u52a1\u662f\u5426\u5b8c\u6210\u7684\u9891\u7387\u65f6\u95f4. \u5982\u679c\u4f60\u5e0c\u671b\u5728\u6574\u4e2a\u96c6\u7fa4\u91cc\u9762\u5e73\u884c\u7684\u6267\u884c\u4e00\u4e0bupdatedb\u8fd9\u4e2a\u547d\u4ee4.\u4f7f\u7528\u4e0b\u9762\u7684\u914d\u7f6e – hosts: all tasks: – name: Install mlocate yum: name=mlocate state=installed – name: Run updatedb […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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