{"id":1765,"date":"2019-01-10T09:10:09","date_gmt":"2019-01-10T01:10:09","guid":{"rendered":"https:\/\/coderbee.net\/?p=1765"},"modified":"2019-01-09T23:29:26","modified_gmt":"2019-01-09T15:29:26","slug":"consul-%e4%b8%8e-k8s-%e6%bb%9a%e5%8a%a8%e9%83%a8%e7%bd%b2","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/framework\/20190110\/1765","title":{"rendered":"Consul \u4e0e K8S \u6eda\u52a8\u90e8\u7f72"},"content":{"rendered":"<h2>\u4e0d\u505c\u673a\u53d1\u5e03\u8ba8\u8bba<\/h2>\n<p>\u8fd1\u671f\u516c\u53f8\u7684\u8fd0\u7ef4\u540c\u4e8b\u5bf9\u4e00\u4e9b\u7cfb\u7edf\u5c1d\u8bd5\u5229\u7528 K8S \u7684\u6eda\u52a8\u53d1\u5e03\u673a\u5236\u4e0d\u505c\u673a\u53d1\u5e03\u7cfb\u7edf\uff0c\u5e94\u7528\u548c\u7cfb\u7edf\u7684\u72b6\u51b5\u662f\uff1aPOD \u91cc\u7684\u5e94\u7528\u5b9e\u4f8b\u662f\u6ce8\u518c\u5728 Consul \u4e0a\uff0cConsul \u7684\u5065\u5eb7\u68c0\u67e5\u95f4\u9694\u662f 10 \u79d2\uff1b\u5b83\u4eec\u914d\u7f6e\u7684 K8S \u6eda\u52a8\u53d1\u5e03\u673a\u5236\u76f4\u63a5\u628a\u8dd1\u5e94\u7528\u7684 POD \u7ec8\u6b62\u4e86\u3002<\/p>\n<p>\u8fd9\u6837\u51fa\u73b0\u4e86\uff1a\u5e94\u7528\u5b9e\u4f8b\u88ab\u7ec8\u6b62\u540e\u5230 Consul \u4e0b\u6b21\u5065\u5eb7\u68c0\u67e5\u4e4b\u524d\uff0cConsul \u8ba4\u4e3a\u5e94\u7528\u5b9e\u4f8b\u662f\u8fd8\u5b58\u6d3b\u7684\uff0c\u628a\u8bf7\u6c42\u5206\u53d1\u7ed9\u4e86\u5df2\u7ecf\u88ab\u505c\u6b62\u7684\u5b9e\u4f8b\uff0c\u8fd9\u4e9b\u8bf7\u6c42\u5f53\u7136\u662f\u5931\u8d25\u7684\u3002\u6709\u7684\u7cfb\u7edf\u56e0\u4e3a\u4e0b\u6e38\u4e0d\u652f\u6301\u91cd\u8bd5\uff0c\u4e4b\u524d\u51fa\u73b0\u5e94\u7528\u91cd\u8bd5\u5bfc\u81f4\u51fa\u73b0\u5f02\u5e38\u6570\u636e\uff0c\u5c31\u628a Ribbon\u3001Feign\u3001Hystrix \u7b49\u7684\u91cd\u8bd5\u673a\u5236\u7981\u7528\u4e86\u3002\u800c\u6ca1\u6709\u4e86\u91cd\u8bd5\u673a\u5236\u8bf7\u6c42\u5c31\u76f4\u63a5\u5931\u8d25\u4e86\uff0c\u8fd9\u6837\u7528\u6237\u5c31\u4f1a\u611f\u77e5\u5230\u7cfb\u7edf\u53d1\u5e03\u3002<\/p>\n<p>\u5927\u5bb6\u5f00\u4f1a\u8ba8\u8bba\u600e\u4e48\u624d\u80fd\u8ba9\u7cfb\u7edf\u53d1\u5e03\u4e0d\u4f1a\u5f71\u54cd\u8bf7\u6c42\u54cd\u5e94\uff1a<\/p>\n<ol>\n<li>\n<p>\u53e6\u4e00\u4e2a\u90e8\u95e8\u7684\u540c\u4e8b\u8bf4\u4ed6\u4eec\u5c31\u662f\u6240\u6709\u63a5\u53e3\u90fd\u652f\u6301\u91cd\u8bd5\uff0c\u6240\u4ee5\u5141\u8bb8\u5bf9\u670d\u52a1\u7684\u67d0\u4e2a\u5b9e\u4f8b\u8bf7\u6c42\u5931\u8d25\u53ef\u4ee5\u91cd\u8bd5\u5230\u53e6\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u8fd9\u6837\u57fa\u672c\u4e0d\u4f1a\u5f71\u54cd\u8bf7\u6c42\u5904\u7406\u3002\u8ba9\u6240\u6709\u63a5\u53e3\u652f\u6301\u91cd\u8bd5\u662f\u9700\u8981\u4e0a\u4e0b\u6e38\u7cfb\u7edf\u534f\u8c03\u7684\uff0c\u800c\u4e14\u9700\u8981\u6bd4\u8f83\u957f\u7684\u65f6\u95f4\u6765\u5b9e\u73b0\u3002\u8fd8\u6709\u4e2a\u95ee\u9898\u662f\uff0c\u4e0d\u662f\u6240\u6709\u63a5\u53e3\u90fd\u80fd\u91cd\u8bd5\u7684\uff0c\u4e3e\u4e2a\u884c\u4e1a\u7279\u5b9a\u7684\u4f8b\u5b50\uff1a\u4fe1\u8d37\u5ba1\u6279\u4e00\u822c\u90fd\u4f1a\u53bb\u67e5\u501f\u6b3e\u4eba\u7684\u4eba\u884c\u5f81\u4fe1\u62a5\u544a\uff0c\u591a\u67e5\u4e00\u6b21\u53ef\u80fd\u5bfc\u81f4\u501f\u6b3e\u4eba\u51e0\u4e2a\u6708\u90fd\u6ca1\u6cd5\u501f\u6b3e\uff0c\u8bbe\u60f3\u4e00\u4e2a\u62a5\u544a\u67e5\u8be2\u7684\u8bf7\u6c42\u53d1\u51fa\u53bb\u4e86\u3001\u5728\u54cd\u5e94\u8fd8\u6ca1\u843d\u5730\u4e4b\u524d\uff0c\u5e94\u7528\u5b9e\u4f8b\u5c31\u88ab\u7ec8\u6b62\u4e86\uff0c\u8fd9\u80af\u5b9a\u662f\u6ca1\u6cd5\u63a5\u53d7\u7684\u3002\u6240\u4ee5\u5e94\u7528\u5b9e\u4f8b\u9700\u8981\u5728\u88ab\u7ec8\u6b62\u4e4b\u524d\u5f97\u5230\u4e00\u4e2a\u673a\u4f1a&#8212;-\u53ef\u4ee5\u4f18\u96c5\u505c\u673a\u7684\u673a\u4f1a\uff0c\u5b83\u9700\u8981\u4e00\u4e2a\u505c\u673a\u7684\u901a\u77e5\u3002\u5bf9\u4e8e\u524d\u9762\u7684\u95ee\u9898\uff0c\u5c31\u662f K8S \u8981\u5728\u505c\u673a\u524d\u901a\u77e5\u5230 POD \u91cc\u7684\u5b9e\u4f8b\uff0c\u7b49\u901a\u77e5\u8fd4\u56de\u540e\u518d\u7ec8\u6b62 POD\u3002<\/p>\n<\/li>\n<li>\n<p>\u8fd9\u5c31\u5e26\u6765\u8fd9\u4e2a\u5c0f\u63d2\u66f2\uff0c\u6211\u63d0\u51fa K8S \u5728\u505c\u6b62 POD \u4e4b\u524d\u7ed9 POD \u91cc\u7684\u5e94\u7528\u53d1\u4e2a\u901a\u77e5\u7684\u65f6\u5019\uff0c\u8fd0\u7ef4\u540c\u4e8b\u8bf4 Consul \u548c K8S \u662f\u4e0d\u540c\u7684\u7cfb\u7edf\uff0c\u6ca1\u6cd5\u505a\u5230\uff0c\u4ed6\u4eec\u8bf4\u7684\u975e\u5e38\u80af\u5b9a\u3002\u3002\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>K8S POD \u751f\u547d\u5468\u671f\u7ba1\u7406<\/h2>\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u95ee\u9898\uff0c\u81ea\u5df1\u89e3\u51b3\u4e0d\u4e86  \u8ddf  \u95ee\u9898\u65e0\u89e3  \u662f\u6709\u533a\u522b\u3002<\/p>\n<p>\u5728\u7f51\u4e0a\u641c\u7d22\u4e00\u756a\u540e\u627e\u5230\u4e86 <a href=\"https:\/\/kubernetes.io\/docs\/concepts\/containers\/container-lifecycle-hooks\/\">POD \u751f\u547d\u5468\u671f\u94a9\u5b50<\/a><\/p>\n<p><!--more--><\/p>\n<p>\u6587\u6863\u63d0\u5230\u6709\u4e24\u79cd\u94a9\u5b50\uff1a<\/p>\n<ul>\n<li>\n<p>PostStart: \u5728\u5bb9\u5668\u521b\u5efa\u540e\u7acb\u5373\u6267\u884c\uff1b<\/p>\n<\/li>\n<li>\n<p>PreStop: \u5728\u5bb9\u5668\u88ab\u7ec8\u6b62\u524d\u7acb\u5373\u6267\u884c\u3002\u5b83\u662f\u963b\u585e\u7684\uff0c\u610f\u5473\u7740\u5b83\u662f\u540c\u6b65\u7684\uff0c\u8fd9\u6837\u5fc5\u987b\u5728\u5b83\u5b8c\u6210\u4e4b\u540e\u5220\u9664\u5bb9\u5668\u7684\u547d\u4ee4\u624d\u80fd\u53d1\u9001\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u94a9\u5b50\u5904\u7406\u5668\u7684\u5b9e\u73b0\u6709\u4e24\u79cd\uff1a<\/p>\n<ul>\n<li>\n<p>Exec: \u6267\u884c\u6307\u5b9a\u7684\u547d\u4ee4\uff0c\u4f8b\u5982 <code>pre-stop.sh<\/code>\uff0c\u5728\u5bb9\u5668\u7684 cgroups \u548c\u547d\u540d\u7a7a\u95f4\u91cc\u6267\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>HTTP: \u5728\u5bb9\u5668\u7684\u6307\u5b9a endpoint \u4e0a\u6267\u884c HTTP \u8bf7\u6c42\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u94a9\u5b50\u81f3\u5c11\u6267\u884c\u4e00\u6b21\uff0c\u610f\u5473\u7740\u94a9\u5b50\u53ef\u80fd\u5728\u6267\u884c\u591a\u6b21\u3002<\/p>\n<h2>Pod \u7684 liveness \u548c readiness \u63a2\u9488<\/h2>\n<ul>\n<li>\n<p>liveness probe, \u5b58\u6d3b\u63a2\u9488\uff1a\u7528\u6765\u786e\u5b9a\u4f55\u65f6\u91cd\u542f\u5bb9\u5668\uff1b<\/p>\n<\/li>\n<li>\n<p>readiness probe, \u5c31\u7eea\u63a2\u9488\uff1a\u7528\u6765\u786e\u5b9a\u5bb9\u5668\u662f\u5426\u5df2\u7ecf\u5c31\u7eea\u53ef\u4ee5\u63a5\u53d7\u6d41\u91cf\u3002\u6709\u7684\u5e94\u7528\u542f\u52a8\u540e\u53ef\u80fd\u9700\u8981\u52a0\u8f7d\u5f88\u591a\u7f13\u5b58\u6570\u636e\u6216\u505a\u5176\u4ed6\u7684\u4e00\u4e9b\u521d\u59cb\u5316\u52a8\u4f5c\uff0c\u4e0d\u80fd\u7acb\u5373\u5904\u7406\u8bf7\u6c42\uff0c\u6216\u8bb8\u53ef\u4ee5\u5229\u7528\u8fd9\u4e2a\u63a2\u9488\u6765\u5ba3\u544a\u5e94\u7528\u662f\u5426\u5c31\u7eea\u3002\u8fd9\u4e2a\u8981\u7ed3\u5408\u5e94\u7528\u8bf7\u6c42\u5206\u53d1\u7684\u5177\u4f53\u60c5\u51b5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u8fd9\u4e24\u4e2a\u662f\u641c\u7d22\u65f6\u770b\u5230\u7684\uff0c\u5148\u8bb0\u5f55\u4e0b\u3002<\/p>\n<hr \/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0d\u505c\u673a\u53d1\u5e03\u8ba8\u8bba \u8fd1\u671f\u516c\u53f8\u7684\u8fd0\u7ef4\u540c\u4e8b\u5bf9\u4e00\u4e9b\u7cfb\u7edf\u5c1d\u8bd5\u5229\u7528 K8S \u7684\u6eda\u52a8\u53d1\u5e03\u673a\u5236\u4e0d\u505c &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/framework\/20190110\/1765\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[255],"tags":[299,300],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1765"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=1765"}],"version-history":[{"count":4,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1765\/revisions"}],"predecessor-version":[{"id":1769,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1765\/revisions\/1769"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=1765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=1765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=1765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}