{"id":1036,"date":"2021-07-29T20:37:32","date_gmt":"2021-07-29T12:37:32","guid":{"rendered":"https:\/\/egonlin.com\/?p=1036"},"modified":"2021-07-30T12:21:34","modified_gmt":"2021-07-30T04:21:34","slug":"%e6%9c%8d%e5%8a%a1%e6%8e%a2%e9%92%88","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=1036","title":{"rendered":"\u670d\u52a1\u63a2\u9488"},"content":{"rendered":"<h1>\u670d\u52a1\u63a2\u9488<\/h1>\n<pre><code class=\"language-bash\">    \u5bf9\u7ebf\u4e0a\u4e1a\u52a1\u6765\u8bf4\uff0c\u4fdd\u8bc1\u670d\u52a1\u7684\u6b63\u5e38\u7a33\u5b9a\u662f\u91cd\u4e2d\u4e4b\u91cd\uff0c\u5bf9\u6545\u969c\u670d\u52a1\u7684\u53ca\u65f6\u5904\u7406\u907f\u514d\u5f71\u54cd\u4e1a\u52a1\u4ee5\u53ca\u5feb\u901f\u6062\u590d\u4e00\u76f4\u662f\u5f00\u53d1\u8fd0\u7ef4\u7684\u96be\u70b9\u3002Kubernetes\u63d0\u4f9b\u4e86\u5065\u5eb7\u68c0\u67e5\u670d\u52a1\uff0c\u5bf9\u4e8e\u68c0\u6d4b\u5230\u6545\u969c\u670d\u52a1\u4f1a\u88ab\u53ca\u65f6\u81ea\u52a8\u4e0b\u7ebf\uff0c\u4ee5\u53ca\u901a\u8fc7\u91cd\u542f\u670d\u52a1\u7684\u65b9\u5f0f\u4f7f\u670d\u52a1\u81ea\u52a8\u6062\u590d\u3002<\/code><\/pre>\n<h2>\u4e00\u3001\u4e3a\u4ec0\u4e48\uff1f<\/h2>\n<pre><code class=\"language-bash\">\u600e\u6837\u4fdd\u8bc1pod\u4e2d\u7684\u5bb9\u5668\u6b63\u5e38\u542f\u52a8\uff1f\n\u600e\u6837\u4fdd\u8bc1pod\u4e2d\u5bb9\u5668\u80fd\u591f\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\uff1f\n\u53ea\u6709\u5bb9\u5668\u542f\u52a8\u4e86\u5e76\u4e14\u80fd\u591f\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u4e86\uff0c\u624d\u80fd\u653e\u5230\u8d1f\u8f7d\u5747\u8861\u4e0a\u4f9b\u7ed9\u7528\u6237\u8bbf\u95ee<\/code><\/pre>\n<h2>\u4e8c\u3001\u5b58\u6d3b\u6027\u63a2\u6d4b<\/h2>\n<pre><code class=\"language-bash\">    \u7528\u4e8e\u5224\u65ad\u5bb9\u5668\u662f\u5426\u5b58\u6d3b\uff0c\u5373Pod\u662f\u5426\u4e3arunning\u72b6\u6001\uff0c\u5982\u679cLivenessProbe\u63a2\u9488\u63a2\u6d4b\u5230\u5bb9\u5668\u4e0d\u5065\u5eb7\uff0c\u5219kubelet\u5c06kill\u6389\u5bb9\u5668\uff0c\u5e76\u6839\u636e\u5bb9\u5668\u7684\u91cd\u542f\u7b56\u7565\u5224\u65ad\u6309\u7167\u90a3\u79cd\u65b9\u5f0f\u91cd\u542f\uff0c\u5982\u679c\u4e00\u4e2a\u5bb9\u5668\u4e0d\u5305\u542bLivenessProbe\u63a2\u9488\uff0c\u5219Kubelet\u8ba4\u4e3a\u5bb9\u5668\u7684LivenessProbe\u63a2\u9488\u7684\u8fd4\u56de\u503c\u6c38\u8fdc\u6210\u529f\u3002\u5b58\u6d3b\u6027\u63a2\u6d4b\u652f\u6301\u7684\u65b9\u6cd5\u6709\u4e09\u79cd:ExecAction\uff0cTCPSocketAction\uff0cHTTPGetAction\u3002\n\n    pod\u4e2d\u6240\u6709\u5bb9\u5668\u7684status=Running\u65f6\uff0cPod\u7684\u72b6\u6001\u624d\u4f1a\u662fRunning\u72b6\u6001\u3002\n\n    \u5f53\u5b58\u6d3b\u6027\u68c0\u67e5\u68c0\u6d4b\u5931\u8d25\u7684\u65f6\u5019\uff0ckebulet\u4f1a\u5220\u9664\u5bb9\u5668\uff0c\u91cd\u65b0\u542f\u52a8\u4e00\u4e2a\u65b0\u7684\u5bb9\u5668\u3002\u7ee7\u7eed\u68c0\u67e5\u3002<\/code><\/pre>\n<h3>1\u3001EXEC<\/h3>\n<p>\u901a\u8fc7\u6267\u884c\u4e00\u6761\u547d\u4ee4\uff0c\u63a2\u6d4b\u670d\u52a1\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<pre><code class=\"language-yaml\">kind: Service\napiVersion: v1\nmetadata:\n  name: name-mysql\nspec:\n  ports:\n    - name: http\n      port: 80\n      targetPort: 80\n  selector:\n    app: mysql\n---\napiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: name-mysql\nspec:\n  selector:\n    matchLabels:\n      app: mysql\n  template:\n    metadata:\n      labels:\n        app: mysql\n    spec:\n      containers:\n        - name: mysql\n          image: alvinos\/django:v1\n          livenessProbe:\n            exec:\n              command:\n                - cat\n                - \/root\/test\/manage.py<\/code><\/pre>\n<h3>2\u3001httpGet\u68c0\u67e5<\/h3>\n<p>\u901a\u8fc7\u8bbf\u95ee\u67d0\u4e2aURL\u7684\u65b9\u5f0f\u63a2\u6d4b\u5f53\u524dPOD\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<pre><code class=\"language-yaml\">apiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: name-mysql\nspec:\n  selector:\n    matchLabels:\n      app: mysql\n  template:\n    metadata:\n      labels:\n        app: mysql\n    spec:\n      containers:\n        - name: mysql\n          image: alvinos\/django:v1\n          livenessProbe:\n            httpGet:\n              port: 80\n              path: \/index<\/code><\/pre>\n<h3>3\u3001TcpSocket \u76f8\u5f53\u4e8e ping<\/h3>\n<p>\u901a\u8fc7ping\u67d0\u4e2a\u7aef\u53e3\u7684\u65b9\u5f0f\uff0c\u63a2\u6d4b\u670d\u52a1\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<pre><code class=\"language-yaml\">---\nkind: Service\napiVersion: v1\nmetadata:\n  name: name-mysql\nspec:\n  ports:\n    - name: http\n      port: 80\n      targetPort: 80\n  selector:\n    app: mysql\n---\napiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: name-mysql\nspec:\n  selector:\n    matchLabels:\n      app: mysql\n  template:\n    metadata:\n      labels:\n        app: mysql\n    spec:\n      containers:\n        - name: mysql\n          image: alvinos\/django:v1\n          livenessProbe:\n            tcpSocket: \n              port: 80 <\/code><\/pre>\n<h3>4\u3001\u53c2\u6570\u8be6\u89e3<\/h3>\n<pre><code class=\"language-bash\">apiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: name-mysql\nspec:\n  selector:\n    matchLabels:\n      app: mysql\n  template:\n    metadata:\n      labels:\n        app: mysql\n    spec:\n      containers:\n        - name: mysql\n          image: alvinos\/django:v1\n          livenessProbe:\n            tcpSocket: \n              port: 80 \n\n# \u68c0\u67e5\u5931\u8d25\u6700\u5c11\u6d4b\u8bd5\uff0c\u9ed8\u8ba4\uff1a3\n\ndelay=10s   : \u63a2\u6d4b\u5ef6\u65f6\u65f6\u95f4initialDelaySeconds\ntimeout=1s  \uff1a\u63a2\u6d4b\u7684\u8d85\u65f6\u65f6\u95f4\nperiod=10s  \uff1a\u63a2\u6d4b\u7684\u9891\u7387\nsuccess=1   \uff1a\u6210\u529f\u591a\u5c11\u6b21\u624d\u7b97\u6210\u529f\nfailure=1   \uff1a\u5931\u8d25\u591a\u5c11\u6b21\u624d\u7b97\u5931\u8d25\n\nfailureThreshold\uff1a\u6700\u5c11\u8fde\u7eed\u51e0\u6b21\u63a2\u6d4b\u5931\u8d25\u7684\u6b21\u6570\uff0c\u6ee1\u8db3\u8be5\u6b21\u6570\u5219\u8ba4\u4e3afail\ninitialDelaySeconds\uff1a\u5bb9\u5668\u542f\u52a8\u4e4b\u540e\u5f00\u59cb\u8fdb\u884c\u5b58\u6d3b\u6027\u63a2\u6d4b\u7684\u79d2\u6570\u3002\u4e0d\u586b\u7acb\u5373\u8fdb\u884c\nperiodSeconds\uff1a\u6267\u884c\u63a2\u6d4b\u7684\u9891\u7387\uff08\u79d2\uff09\u3002\u9ed8\u8ba4\u4e3a10\u79d2\u3002\u6700\u5c0f\u503c\u4e3a1\u3002\nsuccessThreshold\uff1a\u63a2\u6d4b\u5931\u8d25\u540e\uff0c\u6700\u5c11\u8fde\u7eed\u63a2\u6d4b\u6210\u529f\u591a\u5c11\u6b21\u624d\u88ab\u8ba4\u5b9a\u4e3a\u6210\u529f\uff0c\u6ee1\u8db3\u8be5\u6b21\u6570\u5219\u8ba4\u4e3asuccess\u3002\uff08\u4f46\u662f\u5982\u679c\u662fliveness\u5219\u5fc5\u987b\u662f 1\u3002\u6700\u5c0f\u503c\u662f 1\u3002\uff09\ntimeoutSeconds\uff1a\u6bcf\u6b21\u6267\u884c\u63a2\u6d4b\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u9ed8\u8ba41\u79d2\uff0c\u6700\u5c0f1\u79d2\u3002<\/code><\/pre>\n<h2>\u4e09\u3001\u5c31\u7eea\u6027\u63a2\u6d4b<\/h2>\n<pre><code class=\"language-bash\">    \u7528\u4e8e\u5224\u65ad\u5bb9\u5668\u662f\u5426\u6b63\u5e38\u63d0\u4f9b\u670d\u52a1\uff0c\u5373\u5bb9\u5668\u7684Ready\u662f\u5426\u4e3aTrue\uff0c\u662f\u5426\u53ef\u4ee5\u63a5\u6536\u8bf7\u6c42\uff0c\u5982\u679cReadinessProbe\u63a2\u6d4b\u5931\u8d25\uff0c\u5219\u5bb9\u5668\u7684Ready\u5c06\u8bbe\u7f6e\u4e3aFalse\uff0c\u63a7\u5236\u5668\u5c06\u6b64Pod\u7684Endpoint\u4ece\u5bf9\u5e94\u7684service\u7684Endpoint\u5217\u8868\u4e2d\u79fb\u9664\uff0c\u4ece\u6b64\u4e0d\u518d\u5c06\u4efb\u4f55\u8bf7\u6c42\u8c03\u5ea6\u6b64Pod\u4e0a\uff0c\u76f4\u5230\u4e0b\u6b21\u63a2\u6d4b\u6210\u529f\u3002\uff08\u5254\u9664\u6b64pod,\u4e0d\u53c2\u4e0e\u63a5\u6536\u8bf7\u6c42\u4e0d\u4f1a\u5c06\u6d41\u91cf\u8f6c\u53d1\u7ed9\u6b64Pod)\n    \u63a2\u6d4b\u5931\u8d25\u79fb\u51faservice\u7684Endpoint\u7684\u5065\u5eb7\u5217\u8868<\/code><\/pre>\n<h3>1\u3001HTTPGet<\/h3>\n<p>\u901a\u8fc7\u8bbf\u95ee\u67d0\u4e2aURL\u7684\u65b9\u5f0f\u63a2\u6d4b\u5f53\u524dPOD\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u3002<\/p>\n<pre><code class=\"language-yaml\">kind: Pod\napiVersion: v1\nmetadata:\n  name: readinessprobe-nginx\n  namespace: default\n  labels:\n    provider: aliyun\n    business: pms\n    environmental: dev\nspec:\n  containers:\n    - name: readinessprobe-nginx\n      image: nginx\n      imagePullPolicy: Always\n      ports:\n        - containerPort: 80\n          name: http\n          protocol: TCP\n        - containerPort: 443\n          name: https\n          protocol: TCP\n      readinessProbe:\n        httpGet:\n          port: 80\n          path: \/demo.html<\/code><\/pre>\n<h3>2\u3001exec<\/h3>\n<p><\/p><div id=\"rml_readmorelogin_placeholder\" style=\"position:relative;\"><div id=\"rml_fade_content\" style=\"position: absolute;\r\ntop:-10em;\r\nwidth:100%;\r\nheight:10em;\r\nbackground: -webkit-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -moz-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -o-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -ms-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\"><\/div><div class=\"wpf-controller aru_rml_from_in_post\" style=\"background-color:#eeeeee;border:5px solid #cce6ff;\" id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><h2 id=\"Header\">\u67e5\u770b\u66f4\u591a<\/h2><div id=\"Message\"><p>\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div><div id=\"StatusBarHeader\"><\/div><form id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><input name=\"post_id\" value=\"1036\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"1036\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"198ecd184d\" type=\"hidden\"\/><input name=\"_wpnonce\" value=\"2f39b0f723\" type=\"hidden\"\/><input name=\"_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_proxy_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_view\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginView\" type=\"hidden\"\/><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\" width=\"400px\"><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Username:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"username\" value=\"\" type=\"text\"\/><\/td><\/tr><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Password:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"password\" value=\"\" type=\"password\"\/><\/td><\/tr><\/tbody><\/table><p class=\"wpf-table-placeholder submit\"><button class=\"wp_plugin_framework_ajax_button\" type=\"button\" style=\"background-color:#4D90FE;;color:#ffffff;;border:1px solid #3079ed;\" name=\"_event\" value=\"ButtonLogin\">Log in<\/button><\/p><\/td><td class=\"wpf-table-placeholder-input\"><\/td><\/tr><\/tbody><\/table><\/form><div id=\"ButtonStartRegister\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=register\">Register<\/a><\/div><div id=\"Link1\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=lostpassword\">Forgotten username or password?<\/a><\/div><div id=\"StatusBarFooter\"><\/div><\/div><\/div><div id=aru_remaining_content><\/div>","protected":false},"excerpt":{"rendered":"<p>\u670d\u52a1\u63a2\u9488 \u5bf9\u7ebf\u4e0a\u4e1a\u52a1\u6765\u8bf4\uff0c\u4fdd\u8bc1\u670d\u52a1\u7684\u6b63\u5e38\u7a33\u5b9a\u662f\u91cd\u4e2d\u4e4b\u91cd\uff0c\u5bf9\u6545\u969c\u670d\u52a1\u7684\u53ca\u65f6\u5904\u7406\u907f\u514d\u5f71\u54cd\u4e1a\u52a1\u4ee5\u53ca\u5feb\u901f\u6062\u590d\u4e00\u76f4\u662f\u5f00\u53d1 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[129],"tags":[21,133,134,135,19,132,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1036"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1036"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1036\/revisions"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}