{"id":184940,"date":"2020-10-30T23:32:12","date_gmt":"2020-10-30T15:32:12","guid":{"rendered":"http:\/\/4563.org\/?p=184940"},"modified":"2020-11-03T14:29:20","modified_gmt":"2020-11-03T06:29:20","slug":"docker-%e4%b8%8e%e8%99%9a%e6%8b%9f%e6%9c%ba","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=184940","title":{"rendered":"Docker \u4e0e\u865a\u62df\u673a"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  Docker \u4e0e\u865a\u62df\u673a               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : haicoderibai <\/span>  <span><i><\/i> 2<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<h1>Docker \u4e0e\u865a\u62df\u673a<\/h1>\n<p> <\/p>\n<h2>Docker \u6982\u8ff0<\/h2>\n<p><strong>Docker<\/strong> \u662f\u57fa\u4e8e <strong>Linux<\/strong> \u5185\u6838\u7684 cgroup\uff0cnamespace\uff0c\u4ee5\u53ca AUFS \u7c7b\u7684 Union FS \u7b49\u6280\u672f\uff0c\u5bf9\u8fdb\u7a0b\u8fdb\u884c\u5c01\u88c5\u9694\u79bb\uff0c\u5c5e\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\u7684\u865a\u62df\u5316\u6280\u672f\u3002<\/p>\n<p>\u7531\u4e8e\u9694\u79bb\u7684\u8fdb\u7a0b\u72ec\u7acb\u4e8e\u5bbf\u4e3b\u548c\u5176\u5b83\u7684\u9694\u79bb\u7684\u8fdb\u7a0b\uff0c\u56e0\u6b64\u4e5f\u79f0\u5176\u4e3a\u5bb9\u5668\u3002\u6700\u521d\u5b9e\u73b0\u662f\u57fa\u4e8e LXC\uff0c\u4ece 0.7 \u7248\u672c\u4ee5\u540e\u5f00\u59cb\u53bb\u9664 LXC\uff0c\u8f6c\u800c\u4f7f\u7528\u81ea\u884c\u5f00\u53d1\u7684 libcontainer\uff0c\u4ece 1.11 \u5f00\u59cb\uff0c\u5219\u8fdb\u4e00\u6b65\u6f14\u8fdb\u4e3a\u4f7f\u7528 runC \u548c containerd \u3002<\/p>\n<p>Docker 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\u6280\u672f\u6bd4\u865a\u62df\u673a\u6280\u672f\u66f4\u4e3a\u8f7b\u4fbf\u3001\u5feb\u6377\u3002<\/p>\n<h2>\u865a\u62df\u673a<\/h2>\n<p>\u4f20\u7edf\u865a\u62df\u673a\u6280\u672f\u662f\u865a\u62df\u51fa\u4e00\u5957\u786c\u4ef6\u540e\uff0c\u5728\u5176\u4e0a\u8fd0\u884c\u4e00\u4e2a\u5b8c\u6574\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5728\u8be5\u7cfb\u7edf\u4e0a\u518d\u8fd0\u884c\u6240\u9700\u5e94\u7528\u8fdb\u7a0b\u3002<\/p>\n<p>\u800c\u5bb9\u5668\u5185\u7684\u5e94\u7528\u8fdb\u7a0b\u76f4\u63a5\u8fd0\u884c\u4e8e\u5bbf\u4e3b\u7684\u5185\u6838\uff0c\u5bb9\u5668\u5185\u6ca1\u6709\u81ea\u5df1\u7684\u5185\u6838\uff0c\u800c\u4e14\u4e5f\u6ca1\u6709\u8fdb\u884c\u786c\u4ef6\u865a\u62df\u3002\u56e0\u6b64\u5bb9\u5668\u8981\u6bd4\u4f20\u7edf\u865a\u62df\u673a\u66f4\u4e3a\u8f7b\u4fbf\u3002<\/p>\n<h2>\u67b6\u6784<\/h2>\n<h3>\u865a\u62df\u673a\u67b6\u6784<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/11\/02-docker\u4e0e\u865a\u62df\u673a.png\" alt=\"Docker \u4e0e\u865a\u62df\u673a\" \/><\/p>\n<p>\u6bcf\u4e2a\u865a\u62df\u673a\u90fd\u5305\u62ec\u5e94\u7528\u7a0b\u5e8f\u3001\u5fc5\u8981\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u548c\u5e93\u4ee5\u53ca\u4e00\u4e2a\u5b8c\u6574\u7684\u5ba2\u6237\u64cd\u4f5c\u7cfb\u7edf(Guest OS)\uff0c\u5c3d\u7ba1\u5b83\u4eec\u88ab\u5206\u79bb\uff0c\u5b83\u4eec\u5171\u4eab\u5e76\u5229\u7528\u4e3b\u673a\u7684\u786c\u4ef6\u8d44\u6e90\uff0c\u5c06\u8fd1\u9700\u8981\u5341\u51e0\u4e2a GB \u7684\u5927\u5c0f\u3002<\/p>\n<h3>\u5bb9\u5668\u67b6\u6784<\/h3>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/11\/03-docker\u67b6\u6784.png\" alt=\"Docker \u4e0e\u865a\u62df\u673a\" \/><\/p>\n<p>\u5bb9\u5668\u5305\u62ec\u5e94\u7528\u7a0b\u5e8f\u53ca\u5176\u6240\u6709\u7684\u4f9d\u8d56\uff0c\u4f46\u4e0e\u5176\u4ed6\u5bb9\u5668\u5171\u4eab\u5185\u6838\u3002\u5b83\u4eec\u4ee5\u72ec\u7acb\u7684\u7528\u6237\u7a7a\u95f4\u8fdb\u7a0b\u5f62\u5f0f\u8fd0\u884c\u5728\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u3002\u4ed6\u4eec\u4e5f\u4e0d\u4f9d\u8d56\u4e8e\u4efb\u4f55\u7279\u5b9a\u7684\u57fa\u7840\u8bbe\u65bd\uff0cDocker \u5bb9\u5668** \u53ef\u4ee5\u8fd0\u884c\u5728\u4efb\u4f55\u8ba1\u7b97\u673a\u4e0a\uff0c\u4efb\u4f55\u57fa\u7840\u8bbe\u65bd\u548c\u4efb\u4f55\u4e91\u4e0a\u3002<\/p>\n<p>Docker \u7684\u5bb9\u5668\u5229\u7528\u4e86 LXC\uff0c\u7ba1\u7406\u5229\u7528\u4e86 namespaces \u6765\u505a\u6743\u9650\u7684\u63a7\u5236\u548c\u9694\u79bb\uff0ccgroups \u6765\u8fdb\u884c\u8d44\u6e90\u7684\u914d\u7f6e\uff0c\u5e76\u4e14\u8fd8\u901a\u8fc7 aufs 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\u5bf9\u7cfb\u7edf\u8d44\u6e90\u7684\u5229\u7528\u7387\u66f4\u9ad8\u3002<\/p>\n<p>\u65e0\u8bba\u662f\u5e94\u7528\u6267\u884c\u901f\u5ea6\u3001\u5185\u5b58\u635f\u8017\u6216\u8005\u6587\u4ef6\u5b58\u50a8\u901f\u5ea6\uff0c\u90fd\u8981\u6bd4\u4f20\u7edf\u865a\u62df\u673a\u6280\u672f\u66f4\u9ad8\u6548\u3002\u56e0\u6b64\uff0c\u76f8\u6bd4\u865a\u62df\u673a\u6280\u672f\uff0c\u4e00\u4e2a\u76f8\u540c\u914d\u7f6e\u7684\u4e3b\u673a\uff0c\u5f80\u5f80\u53ef\u4ee5\u8fd0\u884c\u66f4\u591a\u6570\u91cf\u7684\u5e94\u7528\u3002<\/p>\n<h3>\u66f4\u5feb\u901f\u7684\u542f\u52a8\u65f6\u95f4<\/h3>\n<p>\u4f20\u7edf\u7684\u865a\u62df\u673a\u6280\u672f\u542f\u52a8\u5e94\u7528\u670d\u52a1\u5f80\u5f80\u9700\u8981\u6570\u5206\u949f\uff0c\u800c Docker \u5bb9\u5668\u5e94\u7528\uff0c\u7531\u4e8e\u76f4\u63a5\u8fd0\u884c\u4e8e\u5bbf\u4e3b\u5185\u6838\uff0c\u65e0\u9700\u542f\u52a8\u5b8c\u6574\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u56e0\u6b64\u53ef\u4ee5\u505a\u5230\u79d2\u7ea7\u3001\u751a\u81f3\u6beb\u79d2\u7ea7\u7684\u542f\u52a8\u65f6\u95f4\u3002\u5927\u5927\u7684\u8282\u7ea6\u4e86\u5f00\u53d1\u3001\u6d4b\u8bd5\u3001\u90e8\u7f72\u7684\u65f6\u95f4\u3002<\/p>\n<h3>\u4e00\u81f4\u7684\u8fd0\u884c\u73af\u5883<\/h3>\n<p>\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u662f\u73af\u5883\u4e00\u81f4\u6027\u95ee\u9898\u3002\u7531\u4e8e\u5f00\u53d1\u73af\u5883\u3001\u6d4b\u8bd5\u73af\u5883\u3001\u751f\u4ea7\u73af\u5883\u4e0d\u4e00\u81f4\uff0c\u5bfc\u81f4\u6709\u4e9b bug \u5e76\u672a\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u88ab\u53d1\u73b0\u3002\u800c <strong>Docker \u955c\u50cf<\/strong> \u63d0\u4f9b\u4e86\u9664\u5185\u6838\u5916\u5b8c\u6574\u7684\u8fd0\u884c\u65f6\u73af\u5883\uff0c\u786e\u4fdd\u4e86\u5e94\u7528\u8fd0\u884c\u73af\u5883\u4e00\u81f4\u6027\uff0c\u4ece\u800c\u4e0d\u4f1a\u518d\u51fa\u73b0 \u300c\u8fd9\u6bb5\u4ee3\u7801\u5728\u6211\u673a\u5668\u4e0a\u6ca1\u95ee\u9898\u554a\u300d \u8fd9\u7c7b\u95ee\u9898\u3002<\/p>\n<h3>\u6301\u7eed\u4ea4\u4ed8\u548c\u90e8\u7f72<\/h3>\n<p>\u5bf9\u5f00\u53d1\u548c\u8fd0\u7ef4\uff08 DevOps \uff09\u4eba\u5458\u6765\u8bf4\uff0c\u6700\u5e0c\u671b\u7684\u5c31\u662f\u4e00\u6b21\u521b\u5efa\u6216\u914d\u7f6e\uff0c\u53ef\u4ee5\u5728\u4efb\u610f\u5730\u65b9\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u4f7f\u7528 Docker \u53ef\u4ee5\u901a\u8fc7\u5b9a\u5236\u5e94\u7528\u955c\u50cf\u6765\u5b9e\u73b0\u6301\u7eed\u96c6\u6210\u3001\u6301\u7eed\u4ea4\u4ed8\u3001\u90e8\u7f72\u3002\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u901a\u8fc7 Dockerfile \u6765\u8fdb\u884c\u955c\u50cf\u6784\u5efa\uff0c\u5e76\u7ed3\u5408\u6301\u7eed\u96c6\u6210(Continuous Integration) \u7cfb\u7edf\u8fdb\u884c\u96c6\u6210\u6d4b\u8bd5\uff0c\u800c\u8fd0\u7ef4\u4eba\u5458\u5219\u53ef\u4ee5\u76f4\u63a5\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u5feb\u901f\u90e8\u7f72\u8be5\u955c\u50cf\uff0c\u751a\u81f3\u7ed3\u5408\u6301\u7eed\u90e8\u7f72(Continuous Delivery\/Deployment) \u7cfb\u7edf\u8fdb\u884c\u81ea\u52a8\u90e8\u7f72\u3002<\/p>\n<p>\u800c\u4e14\u4f7f\u7528 Dockerfile \u4f7f\u955c\u50cf\u6784\u5efa\u900f\u660e\u5316\uff0c\u4e0d\u4ec5\u4ec5\u5f00\u53d1\u56e2\u961f\u53ef\u4ee5\u7406\u89e3\u5e94\u7528\u8fd0\u884c\u73af\u5883\uff0c\u4e5f\u65b9\u4fbf\u8fd0\u7ef4\u56e2\u961f\u7406\u89e3\u5e94\u7528\u8fd0\u884c\u6240\u9700\u6761\u4ef6\uff0c\u5e2e\u52a9\u66f4\u597d\u7684\u751f\u4ea7\u73af\u5883\u4e2d\u90e8\u7f72\u8be5\u955c\u50cf\u3002<\/p>\n<h3>\u66f4\u8f7b\u677e\u7684\u8fc1\u79fb<\/h3>\n<p>\u7531\u4e8e Docker \u786e\u4fdd\u4e86\u6267\u884c\u73af\u5883\u7684\u4e00\u81f4\u6027\uff0c\u4f7f\u5f97\u5e94\u7528\u7684\u8fc1\u79fb\u66f4\u52a0\u5bb9\u6613\u3002Docker \u53ef\u4ee5\u5728\u5f88\u591a\u5e73\u53f0\u4e0a\u8fd0\u884c\uff0c\u65e0\u8bba\u662f\u7269\u7406\u673a\u3001\u865a\u62df\u673a\u3001\u516c\u6709\u4e91\u3001\u79c1\u6709\u4e91\uff0c\u751a\u81f3\u662f\u7b14\u8bb0\u672c\uff0c\u5176\u8fd0\u884c\u7ed3\u679c\u662f\u4e00\u81f4\u7684\u3002\u56e0\u6b64\u7528\u6237\u53ef\u4ee5\u5f88\u8f7b\u6613\u7684\u5c06\u5728\u4e00\u4e2a\u5e73\u53f0\u4e0a\u8fd0\u884c\u7684\u5e94\u7528\uff0c\u8fc1\u79fb\u5230\u53e6\u4e00\u4e2a\u5e73\u53f0\u4e0a\uff0c\u800c\u4e0d\u7528\u62c5\u5fc3\u8fd0\u884c\u73af\u5883\u7684\u53d8\u5316\u5bfc\u81f4\u5e94\u7528\u65e0\u6cd5\u6b63\u5e38\u8fd0\u884c\u7684\u60c5\u51b5\u3002<\/p>\n<h3>\u66f4\u8f7b\u677e\u7684\u7ef4\u62a4\u548c\u6269\u5c55<\/h3>\n<p>Docker 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