{"id":1473,"date":"2021-06-12T03:58:31","date_gmt":"2021-06-12T03:58:31","guid":{"rendered":"https:\/\/www.ipcpu.com\/?p=1473"},"modified":"2021-07-02T03:59:52","modified_gmt":"2021-07-02T03:59:52","slug":"kubernetes-liveness-readiness-startup-probe","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2021\/06\/kubernetes-liveness-readiness-startup-probe\/","title":{"rendered":"Kubernetes\u7684\u5065\u5eb7\u68c0\u67e5liveness-readiness-startup\u63a2\u9488"},"content":{"rendered":"

Kubernetes\u7684\u5065\u5eb7\u68c0\u67e5liveness-readiness-startup\u63a2\u9488.md<\/p>\n

\u5f15\u5165<\/h2>\n

\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5f53 Pod \u4e2d\u7684\u6240\u6709\u5bb9\u5668\u542f\u52a8\u65f6\uff0cKubernetes \u5f00\u59cb\u5411 Pod \u53d1\u9001\u6d41\u91cf\uff0c\u5e76\u5728\u5d29\u6e83\u65f6\u91cd\u65b0\u542f\u52a8\u5bb9\u5668\u3002<\/p>\n

\u4f46\u662f\u5982\u679cPod\u4e2d\u8fdb\u7a0b\u542f\u52a8\u9700\u8981\u4e00\u5b9a\u7684\u65f6\u95f4\uff0c\u6bd4\u5982springboot\u9879\u76ee\uff0c\u5bb9\u5668\u542f\u52a8\u6210\u529f\u540e\uff0cspringboot\u542f\u52a8\u9700\u8981\u4e00\u4e9b\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u8fde\u63a5\u5916\u90e8\u6570\u636e\u5e93\uff0c\u8fde\u63a5\u5916\u90e8\u4e2d\u95f4\u4ef6\u7b49\u7b49\uff0c\u9700\u8981\u51e0\u79d2\uff0c\u51e0\u5341\u79d2\uff0c\u751a\u81f3\u4e00\u5206\u591a\u949f\u624d\u80fd\u542f\u52a8\u3002<\/p>\n

Kubernetes \u5728\u8bbe\u8ba1\u4e0a\u5df2\u7ecf\u8003\u8651\u5230\u4e86\u8fd9\u70b9\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u5bb9\u5668\u63a2\u9488\u6765\u68c0\u67e5\u670d\u52a1\u662f\u5426\u53ef\u7528\u3002
\n<\/p>\n

liveness probe\uff08\u5b58\u6d3b\u63a2\u9488\uff09<\/h2>\n

Kubelet\u4f7f\u7528liveness probe\uff08\u5b58\u6d3b\u63a2\u9488\uff09\u6765\u786e\u5b9a\u4f55\u65f6\u91cd\u542f\u5bb9\u5668\u3002\u5982\u679c\u5b58\u6d3b\u6001\u63a2\u6d4b\u5931\u8d25\uff0c\u5219 kubelet \u4f1a\u6740\u6b7b\u5bb9\u5668\uff0c \u5e76\u4e14\u5bb9\u5668\u5c06\u6839\u636e\u5176\u91cd\u542f\u7b56\u7565\u51b3\u5b9a\u662f\u5426\u91cd\u542f\u3002\u5982\u679c\u4e0d\u63d0\u4f9b\u5b58\u6d3b\u63a2\u9488\uff0c \u5219\u9ed8\u8ba4\u72b6\u6001\u4e3a Success\u3002<\/p>\n

\n
    spec:\n      containers:\n        - image: 'k8s.gcr.io\/liveness'\n          imagePullPolicy: IfNotPresent\n          livenessProbe:\n            failureThreshold: 3\n            httpGet:\n              path: \/healthz\n              port: 8080\n              scheme: HTTP\n            initialDelaySeconds: 30\n            periodSeconds: 10\n            successThreshold: 1\n            timeoutSeconds: 1<\/code><\/pre>\n<\/div>\n
periodSeconds \u5b57\u6bb5\u6307\u5b9a\u4e86 kubelet \u6bcf\u9694 10 \u79d2\u6267\u884c\u4e00\u6b21\u5b58\u6d3b\u63a2\u6d4b\u3002  
\ntimeoutSeconds\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b\u7684\u8d85\u65f6\u65f6\u95f4\u662f1\u79d2\u3002 
\nfailureThreshold\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b3\u6b21\u5931\u8d25\uff0c\u624d\u8ba4\u4e3a\u5931\u8d25\u3002 
\nsuccessThreshold\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b1\u6b21\u6210\u529f\uff0c\u5c31\u8ba4\u4e3a\u6210\u529f\u3002 
\ninitialDelaySeconds \u5b57\u6bb5\u544a\u8bc9 kubelet \u5728\u6267\u884c\u7b2c\u4e00\u6b21\u63a2\u6d4b\u524d\u5e94\u8be5\u7b49\u5f85 30 \u79d2\uff0c\u8fd9\u4e2a\u503c\u4e00\u5b9a\u8981\u6839\u636e\u5b9e\u9645\u5e94\u7528\u542f\u52a8\u5b9e\u9645\u8c03\u6574\uff0c\u8bbe\u7f6e\u8fc7\u5c0f\u6709\u53ef\u80fd\u4f1a\u5f15\u8d77Pod\u65e0\u9650\u91cd\u542f\u3002<\/p>\n
\u5b58\u6d3b\u63a2\u9488\u7684\u4e3b\u8981\u7528\u9014\u662f\uff0c\u5c06\u4ecd\u7136\u5904\u5728\u8fd0\u884c\u72b6\u6001\u4f46\u5374\u65e0\u6cd5\u6b63\u5e38\u63d0\u4f9b\u670d\u52a1\u7684Pod\u8fdb\u884c\u91cd\u542f\uff0c\u5bf9\u4e8e\u6709bug\u7684\u7a0b\u5e8f\u8fdb\u884c\u91cd\u542f\uff0c\u5c1d\u8bd5\u8fdb\u884c\u6062\u590d\u3002<\/p>\n
readiness probe\uff08\u5c31\u7eea\u63a2\u9488\uff09<\/h2>\n
kubelet \u4f7f\u7528readiness probe\uff08\u5c31\u7eea\u63a2\u9488\uff09\u6765\u4e86\u89e3\u5bb9\u5668\u4f55\u65f6\u51c6\u5907\u597d\u5f00\u59cb\u63a5\u53d7\u6d41\u91cf\u3002\u901a\u8fc7\u4e86\u5c31\u7eea\u63a2\u9488\u68c0\u67e5\u7684Pod\u5c31\u53ef\u4ee5\u5904\u4e8eReady\u72b6\u6001\u3002\u5982\u679c\u4e0d\u8bbe\u7f6e\u5c31\u7eea\u6001\u63a2\u9488\uff0c\u5219\u9ed8\u8ba4\u72b6\u6001\u4e3a Success \u901a\u8fc7\u3002<\/p>\n
\u5c31\u7eea\u63a2\u9488\u7684\u4e00\u4e2a\u7528\u9014\u662f\u63a7\u5236\u54ea\u4e9b Pod \u4f5c\u4e3a\u670d\u52a1service\u7684\u540e\u7aef\u3002\u5f53 Pod \u672a\u901a\u8fc7\u5c31\u7eea\u63a2\u9488\u68c0\u67e5\u65f6\uff0c\u5b83\u4f1a\u4ece\u670d\u52a1\u8d1f\u8f7d\u5747\u8861\u5668\u4e2d\u5220\u9664\u3002\u7531\u4e8eingress\u4f9d\u8d56\u4e8eservice\uff0c\u6240\u4ee5\u4f7f\u7528\u4e86ingress\u7684\u9879\u76ee\u5fc5\u987b\u5f00\u542f\u5c31\u7eea\u63a2\u9488\uff1b 
\n\u5c31\u7eea\u63a2\u9488\u7684\u53e6\u4e00\u4e2a\u7528\u9014\u5c31\u662fRolling Updates\uff08\u6eda\u52a8\u53d1\u5e03\uff09\uff0c\u8bbe\u7f6e\u4e86\u5c31\u7eea\u63a2\u9488\u4ee5\u540e\uff0cPod\u5904\u4e8eReady\u72b6\u6001\uff0c\u624d\u4f1a\u8fdb\u884c\u4e0b\u4e00\u4e2a\u6eda\u52a8\uff0c\u5426\u5219\u53ea\u8981Pod\u662fRunning\u72b6\u6001(Ready\u72b6\u6001\u4f1a\u548cRunning\u72b6\u6001\u4e00\u81f4)\u5c31\u4f1a\u6eda\u52a8\u3002<\/p>\n
\n
readinessProbe:\n  exec:\n    command:\n    - cat\n    - \/tmp\/healthy\n  initialDelaySeconds: 5\n  periodSeconds: 5<\/code><\/pre>\n<\/div>\n
startup probe\uff08\u542f\u52a8\u63a2\u9488\uff09<\/h2>\n
\u542f\u52a8\u63a2\u9488\u7528\u6765\u63a2\u6d4bPod\u5185\u670d\u52a1\u662f\u5426\u5df2\u7ecf\u542f\u52a8\u3002\u5982\u679c\u63d0\u4f9b\u4e86\u542f\u52a8\u63a2\u9488\uff0c\u5219\u6240\u6709\u5176\u4ed6\u63a2\u9488\u90fd\u4f1a\u88ab \u7981\u7528\uff0c\u76f4\u5230\u6b64\u63a2\u9488\u6210\u529f\u4e3a\u6b62\u3002\u5982\u679c\u542f\u52a8\u63a2\u6d4b\u5931\u8d25\uff0ckubelet \u5c06\u6740\u6b7b\u5bb9\u5668\uff0c\u800c\u5bb9\u5668\u4f9d\u5176\u91cd\u542f\u7b56\u7565\u8fdb\u884c\u91cd\u542f\u3002 \u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u542f\u52a8\u63a2\u6d4b\uff0c\u5219\u9ed8\u8ba4\u72b6\u6001\u4e3a Success\u3002<\/p>\n
\u4e00\u822c\u6765\u8bb2\uff0c\u5bf9\u4e8e\u9700\u8981\u8f83\u957f\u65f6\u95f4\u624d\u80fd\u542f\u52a8\u5c31\u7eea\u7684 Pod \u800c\u8a00\uff0c\u542f\u52a8\u63a2\u9488\u662f\u6709\u7528\u7684\u3002 \u4f60\u4e0d\u518d\u9700\u8981\u914d\u7f6e\u4e00\u4e2a\u8f83\u957f\u7684\u5b58\u6d3b\u6001\u63a2\u6d4b\u65f6\u95f4\u95f4\u9694\uff0c\u53ea\u9700\u8981\u8bbe\u7f6e\u53e6\u4e00\u4e2a\u72ec\u7acb\u7684\u914d\u7f6e\u9009\u5b9a\uff0c \u5bf9\u542f\u52a8\u671f\u95f4\u7684\u5bb9\u5668\u6267\u884c\u63a2\u6d4b\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
\u8fd9\u4e2a\u529f\u80fd\u57fa\u672c\u4e0a\u548c\u5b58\u6d3b\u63a2\u9488\u7684initialDelaySeconds \u4f5c\u7528\u7c7b\u4f3c\u3002<\/p>\n
\u53c2\u8003\u8d44\u6599<\/h2>\n
https:\/\/kubernetes.io\/docs\/tasks\/configure-pod-container\/configure-liveness-readiness-startup-probes\/<\/a><\/p>\n
\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aIPCPU-\u7f51\u7edc\u4e4b\u8def<\/a> » Kubernetes\u7684\u5065\u5eb7\u68c0\u67e5liveness-readiness-startup\u63a2\u9488<\/a><\/p>","protected":false},"excerpt":{"rendered":"
Kubernetes\u7684\u5065\u5eb7\u68c0\u67e5liveness-readiness-startup\u63a2\u9488.md \u5f15\u5165 \u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5f53 Pod \u4e2d\u7684\u6240\u6709\u5bb9\u5668\u542f\u52a8\u65f6\uff0cKubernetes \u5f00\u59cb\u5411 Pod \u53d1\u9001\u6d41\u91cf\uff0c\u5e76\u5728\u5d29\u6e83\u65f6\u91cd\u65b0\u542f\u52a8\u5bb9\u5668\u3002 \u4f46\u662f\u5982\u679cPod\u4e2d\u8fdb\u7a0b\u542f\u52a8\u9700\u8981\u4e00\u5b9a\u7684\u65f6\u95f4\uff0c\u6bd4\u5982springboot\u9879\u76ee\uff0c\u5bb9\u5668\u542f\u52a8\u6210\u529f\u540e\uff0cspringboot\u542f\u52a8\u9700\u8981\u4e00\u4e9b\u521d\u59cb\u5316\u5de5\u4f5c\uff0c\u8fde\u63a5\u5916\u90e8\u6570\u636e\u5e93\uff0c\u8fde\u63a5\u5916\u90e8\u4e2d\u95f4\u4ef6\u7b49\u7b49\uff0c\u9700\u8981\u51e0\u79d2\uff0c\u51e0\u5341\u79d2\uff0c\u751a\u81f3\u4e00\u5206\u591a\u949f\u624d\u80fd\u542f\u52a8\u3002 Kubernetes \u5728\u8bbe\u8ba1\u4e0a\u5df2\u7ecf\u8003\u8651\u5230\u4e86\u8fd9\u70b9\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u5bb9\u5668\u63a2\u9488\u6765\u68c0\u67e5\u670d\u52a1\u662f\u5426\u53ef\u7528\u3002 liveness probe\uff08\u5b58\u6d3b\u63a2\u9488\uff09 Kubelet\u4f7f\u7528liveness probe\uff08\u5b58\u6d3b\u63a2\u9488\uff09\u6765\u786e\u5b9a\u4f55\u65f6\u91cd\u542f\u5bb9\u5668\u3002\u5982\u679c\u5b58\u6d3b\u6001\u63a2\u6d4b\u5931\u8d25\uff0c\u5219 kubelet \u4f1a\u6740\u6b7b\u5bb9\u5668\uff0c \u5e76\u4e14\u5bb9\u5668\u5c06\u6839\u636e\u5176\u91cd\u542f\u7b56\u7565\u51b3\u5b9a\u662f\u5426\u91cd\u542f\u3002\u5982\u679c\u4e0d\u63d0\u4f9b\u5b58\u6d3b\u63a2\u9488\uff0c \u5219\u9ed8\u8ba4\u72b6\u6001\u4e3a Success\u3002 spec: containers: – image: ‘k8s.gcr.io\/liveness’ imagePullPolicy: IfNotPresent livenessProbe: failureThreshold: 3 httpGet: path: \/healthz port: 8080 scheme: HTTP initialDelaySeconds: 30 periodSeconds: 10 successThreshold: 1 timeoutSeconds: 1 periodSeconds \u5b57\u6bb5\u6307\u5b9a\u4e86 kubelet \u6bcf\u9694 10 \u79d2\u6267\u884c\u4e00\u6b21\u5b58\u6d3b\u63a2\u6d4b\u3002 timeoutSeconds\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b\u7684\u8d85\u65f6\u65f6\u95f4\u662f1\u79d2\u3002 failureThreshold\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b3\u6b21\u5931\u8d25\uff0c\u624d\u8ba4\u4e3a\u5931\u8d25\u3002 successThreshold\u5b57\u6bb5\u6307\u5b9a\u4e86\u63a2\u6d4b1\u6b21\u6210\u529f\uff0c\u5c31\u8ba4\u4e3a\u6210\u529f\u3002 initialDelaySeconds […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,2],"tags":[129],"_links":{"self":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1473"}],"collection":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/comments?post=1473"}],"version-history":[{"count":1,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1473\/revisions"}],"predecessor-version":[{"id":1474,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/posts\/1473\/revisions\/1474"}],"wp:attachment":[{"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/media?parent=1473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/categories?post=1473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/c.ipcpu.com\/wp-json\/wp\/v2\/tags?post=1473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}